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<!-- DFIN New ActiveDisclosure (SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date :2026-10-08T17:39:22.2396+00:00 -->
<!-- Copyright (c) 2026 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WarrantInstrumentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant Instruments [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WarrantInstrumentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for warrant instruments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_EmergingGrowthCompanyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Emerging Growth Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_EmergingGrowthCompanyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Emerging Growth Company [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_EmergingGrowthCompanyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Emerging growth company policy textblock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FounderSharesNoLongerSubjectToForfeiture_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Founder shares no longer subject to forfeiture.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FounderSharesNoLongerSubjectToForfeiture_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Founder Shares No Longer Subject To Forfeiture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FounderSharesNoLongerSubjectToForfeiture_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Founder shares no longer subject to forfeiture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FounderSharesNoLongerSubjectToForfeiture_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares issued, shares, share-based payment arrangement, forfeited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OverAllotmentOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Over-Allotment Option [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OverAllotmentOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Over-Allotment Option [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingCommissionPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred underwriting commission per unit.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingCommissionPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Commission Per Unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingCommissionPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Underwriting Commission Per Unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and Contingencies (Note 6)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalLoanFromRelatedPartyNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Working capital loan from related party non current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalLoanFromRelatedPartyNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Working Capital Loan From Related Party Non Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalLoanFromRelatedPartyNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Working Capital Loans &#8211; related party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Diluted, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Weighted-average ordinary shares outstanding, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_InitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Initial Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_InitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_InitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForUnderwritingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Underwriting Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForUnderwritingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payments for Underwriting Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_InitialPublicOfferingTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Public Offering [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_InitialPublicOfferingTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Initial Public Offering Table</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preference stock, shares outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Preferred Stock, Shares Outstanding, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Preferred Stock, Shares Outstanding, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_IncreaseDecreaseInDeferredLegalFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase decrease in deferred legal fee.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_IncreaseDecreaseInDeferredLegalFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Deferred Legal Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_IncreaseDecreaseInDeferredLegalFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred legal fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfTransactionFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage Of Transaction Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfTransactionFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Transaction Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfTransactionFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of transaction fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Entities [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock, Shares, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock, shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repayments of Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightPurchasePricePerWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class Of Warrants Or Right Purchase Price Per Warrant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightPurchasePricePerWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class Of Warrants Or Right Purchase Price Per Warrant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset, Held-in-Trust, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and marketable securities held in Trust Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Cash and marketable securities held in Trust Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ConversionOfAdvancesAndShortTermPromissoryNotesToWorkingCapitalLoansRelatedParty_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Conversion of advances and short term promissory notes to working capital loans related party.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ConversionOfAdvancesAndShortTermPromissoryNotesToWorkingCapitalLoansRelatedParty_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Conversion Of Advances And Short Term Promissory Notes To Working Capital Loans Related Party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ConversionOfAdvancesAndShortTermPromissoryNotesToWorkingCapitalLoansRelatedParty_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Conversion of advances and short-term promissory notes to Working Capital Loans &#8211; related party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredLegalFeesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred legal fees payable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredLegalFeesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Legal Fees Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredLegalFeesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Legal Fees Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressesAddressTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Addresses, Address Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivatePlacementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General and Administrative Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Formation, general and administrative costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">General and Administrative Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">General and administrative costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ChangesInPrepaidInsurance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Changes in prepaid insurance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ChangesInPrepaidInsurance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Changes In Prepaid Insurance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ChangesInPrepaidInsurance_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid insurance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basic net loss per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Basic net income per ordinary share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Earnings Per Share, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_OrganizationAndPlanOfBusinessOperationsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization and Plan of Business Operations [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock, shares authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstandingMeasurementInput_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants and Rights Outstanding, Measurement Input</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstandingMeasurementInput_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants at issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOwnershipInterestsOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Ownership Interests, Offering Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOwnershipInterestsOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Ownership Interests, Offering Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Other Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment of cash in Trust Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Investment of cash in Trust Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common Class B [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Class B [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class B ordinary shares [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Examination, Penalties and Interest Accrued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest accrued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalMarkToMarket_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustments to Additional Paid in Capital, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalMarkToMarket_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value of Public Warrants at issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">TOTAL ASSETS</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preference shares, $0.0001 par value; 1,000,000 shares authorized; none issued and outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ScheduleOfOrdinarySharesSubjectToPossibleRedemptionTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule Of Ordinary Shares Subject To Possible Redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ScheduleOfOrdinarySharesSubjectToPossibleRedemptionTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of condensed balance sheets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ScheduleOfOrdinarySharesSubjectToPossibleRedemptionTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of condensed balance sheets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Private Placement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of Private Placement Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfHigherMarketValueOfPublicWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of higher market value of public warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfHigherMarketValueOfPublicWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of higher market value of public warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfHigherMarketValueOfPublicWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of higher market value of public warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_LossOnChangeInFairValueOfDerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Loss on Change in fair value of derivative liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_LossOnChangeInFairValueOfDerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss On Change In Fair Value Of Derivative Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_LossOnChangeInFairValueOfDerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss on change in fair value of derivative liabilities &#8211; Private Placement Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_IncreaseDecreaseFairValueOfWarrantsLiabilityInExcessOfPurchasePriceOfPrivatePlacementWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase decrease fair value of warrants liability in excess of purchase price of private placement warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_IncreaseDecreaseFairValueOfWarrantsLiabilityInExcessOfPurchasePriceOfPrivatePlacementWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease Fair Value Of Warrants Liability In Excess Of Purchase Price Of Private Placement Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_IncreaseDecreaseFairValueOfWarrantsLiabilityInExcessOfPurchasePriceOfPrivatePlacementWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of warrants liability in excess of purchase price of Private Placement Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalUnitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Units [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalUnitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Units [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_MeasurementInputTermMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Measurement input term.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_MeasurementInputTermMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Term [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_MeasurementInputTermMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Term (Years) [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfPublicSharesToBeRedeemedOnNonCompletionOfBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of public shares to be redeemed on non completion of business combination.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfPublicSharesToBeRedeemedOnNonCompletionOfBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Public Shares To Be Redeemed On Non Completion Of Business Combination</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Segment Reporting Information, by Segment [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Several Key Metrics Included in the Net Loss and Total Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_OutOfPocketExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Out Of Pocket Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_OutOfPocketExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Out Of Pocket Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_OutOfPocketExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Out-of-pocket expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_NonCashDeferredUnderwritingFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Non cash deferred underwriting fee payable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_NonCashDeferredUnderwritingFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Non Cash Deferred Underwriting Fee Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_NonCashDeferredUnderwritingFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred underwriting fee payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Cash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Cash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRelatedPartyDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Related Party Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRelatedPartyDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from promissory note &#8211; related party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Shareholders' (Deficit) Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Reportable Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of Reportable Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stockholders' Equity Note [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basis of Accounting, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis of Presentation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Warrant liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfStockByClassTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock, Class of Stock [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Temporary equity par or stated value per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_RestrictedInvestmentsTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Restricted investments term.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_RestrictedInvestmentsTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Investments Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_RestrictedInvestmentsTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted investments term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_SharePriceRangeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Price Range [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_TradingDaysSpecifiedWindowForMinimumCommonStockPriceForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Trading days specified window for minimum common stock price for warrants redemption.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_TradingDaysSpecifiedWindowForMinimumCommonStockPriceForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trading Days Specified Window For Minimum Common Stock Price For Warrants Redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_TradingDaysSpecifiedWindowForMinimumCommonStockPriceForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading days specified window for minimum common stock price for warrants redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value of Financial Instruments, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value of Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PaymentOfOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payment of offering costs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PaymentOfOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment Of Offering Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PaymentOfOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Payment of offering costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FounderSharesLockInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Founder shares lock in period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FounderSharesLockInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Founder Shares Lock In Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FounderSharesLockInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Founder Shares Lock In Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of basic and diluted net loss per ordinary share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">TOTAL LIABILITIES</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Company's Derivative Assets and Liabilities Measured at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings (Accumulated Deficit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated deficit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Inputs, Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivatePlacementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightsIssuedDuringThePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class of warrants or rights issued during the period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightsIssuedDuringThePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrants or Rights Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightsIssuedDuringThePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Warrants or Rights Issued During the Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivatePlacementWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivatePlacementWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivatePlacementWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Private Placement Warrants Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProceedsFromSaleOfUnitsNetOfUnderwritingDiscountsPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from sale of units net of underwriting discounts paid.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProceedsFromSaleOfUnitsNetOfUnderwritingDiscountsPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Sale Of Units Net Of Underwriting Discounts Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProceedsFromSaleOfUnitsNetOfUnderwritingDiscountsPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of Units, net of underwriting discounts paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetBackedSecuritiesAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Equivalent, Asset-Backed Security, Carrying Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetBackedSecuritiesAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset-Backed Securities, at Carrying Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ShareTransferRestrictionThresholdTradingDays_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share transfer restriction threshold trading days.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ShareTransferRestrictionThresholdTradingDays_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Transfer Restriction Threshold Trading Days</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ShareTransferRestrictionThresholdTradingDays_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share Transfer Restriction Threshold Trading Days</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_AccruedOfferingCostsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accrued offering costs current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_AccruedOfferingCostsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Offering Costs Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_AccruedOfferingCostsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued offering costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in operating assets and liabilities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivateWarrantsSponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Private&#160;warrants sponsor.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivateWarrantsSponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Warrants Sponsor [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivateWarrantsSponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private&#160;Warrants&#160;- Sponsor [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Issued, Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares issued, price per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, New Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock issued during period shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Class B ordinary shares issued to Initial Shareholder, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Prepaid Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsQuantitativeInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IPOMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">IPO [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IPOMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">IPO [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfRedeemingSharesOfPublicSharesWithoutTheCompanysPriorWrittenConsent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of redeeming shares of public shares without the companys prior written consent.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfRedeemingSharesOfPublicSharesWithoutTheCompanysPriorWrittenConsent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Redeeming Shares Of Public Shares Without The Companys Prior Written Consent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfRedeemingSharesOfPublicSharesWithoutTheCompanysPriorWrittenConsent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of redeeming shares of public shares without the company's prior written consent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PeriodWithinWhichInitialBusinessCombinationShallBeConsummatedFromTheClosingOfInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Period with in which initial business combination shall be consummated from the closing of initial public offering.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PeriodWithinWhichInitialBusinessCombinationShallBeConsummatedFromTheClosingOfInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Period With in Which Initial Business Combination Shall Be Consummated From The Closing Of Initial Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PeriodWithinWhichInitialBusinessCombinationShallBeConsummatedFromTheClosingOfInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Period with in which initial business combination shall be consummated from the closing of initial public offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Carrying Amount, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A ordinary shares subject to possible redemption, $0.0001 par value; 23,000,000 and no shares at redemption value of $10.11 and $0.00 per share as of June 30, 2026 and December 31, 2025, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Class A Ordinary Shares subject to possible redemption, June 30, 2026</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Issued for Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock Issued During Period, Shares, Issued for Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Underwriters have committed to use a portion of their underwriting discount and commission</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Events</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfStockIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Stock Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfStockIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Class A ordinary shares issuance cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Issued for Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock Issued During Period, Value, Issued for Services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Underwriters have committed to use a portion of their underwriting discount and commission</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightsIssuedIssuePricePerWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class of warrants or rights issued issue price per warrant.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightsIssuedIssuePricePerWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of warrants or Rights Issued Price Per Warrant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFeeAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Fee Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFeeAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Fee Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WarrantsRedemptionPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants redemption price per share.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WarrantsRedemptionPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants Redemption Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WarrantsRedemptionPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants redemption price per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Nonoperating Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total other expenses, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Total other expenses, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">TOTAL LIABILITIES, CLASS A ORDINARY SHARES SUBJECT TO POSSIBLE REDEMPTION AND SHAREHOLDERS' (DEFICIT) EQUITY</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_CommitmentsAndContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalLoansRelatedPartyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Working capital loans related party.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalLoansRelatedPartyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Working Capital Loans Related Party [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalLoansRelatedPartyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Working Capital Loans &#8212; Related Party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightUnderwrittingDiscountPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class of warrants or right underwritting discount purchase.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightUnderwrittingDiscountPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrants or Right Underwritting Discount Purchase</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightUnderwrittingDiscountPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Warrants or Right Underwritting Discount Purchase</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in fair value of derivative liabilities - Private Placement Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Proceeds from issuance of warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfWarrants_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Proceeds allocated to Public Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Promissory note &#8211; related party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Notes Payable, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Change in Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Use of Estimates, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Use of Estimates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Inputs, Level 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_NoticePeriodForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Notice period for warrants redemption.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_NoticePeriodForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notice Period For Warrants Redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_NoticePeriodForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notice period for warrants redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred underwriting discount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Discount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Underwriting Discount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_SharePriceEqualsOrExceedsTwelvePerUsdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share Price Equals Or Exceeds Twelve Per Usd [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_SharePriceEqualsOrExceedsTwelvePerUsdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share price equals or exceeds twelve per usd.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_SharePriceEqualsOrExceedsTwelvePerUsdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Price Equals Or Exceeds Twelve Per Usd [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_LossOnChangeInFairValueOfDerivativeWarrantLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Loss on change in fair value of derivative warrant liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_LossOnChangeInFairValueOfDerivativeWarrantLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss On Change In Fair Value of Derivative Warrant Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_LossOnChangeInFairValueOfDerivativeWarrantLiabilities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loss on change in fair value of derivative liabilities &#8211; Private Placement Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentForAdministrativeFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment for Administrative Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentForAdministrativeFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payment for Administrative Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of fair value assets and liabilities measured on recurring basis.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonoperating Income (Expense) [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other income (expense):</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfRedeemableOutstandingShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of redeemable outstanding shares.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfRedeemableOutstandingShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Redeemable Outstanding shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfRedeemableOutstandingShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of redeemable outstanding shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shareholders' (Deficit) Equity:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Weighted-average ordinary shares outstanding, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ASSETS</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable and Accrued Liabilities, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accounts Payable and Accrued Liabilities, Current, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityPrimarySicNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Primary SIC Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityRedemptionPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Redemption Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityRedemptionPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Temporary equity redemption price per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_ContactPersonnelName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contact Personnel Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accrued Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Accrued Liabilities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class of warrants or right purchase.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantsOrRightPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrants or Right Purchase</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in operating activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation, State or Country Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative liabilities - Private Placement Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Diluted net loss per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Diluted net income per ordinary share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Earnings Per Share, Diluted, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Preference stock, par or stated value per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Allocation of net loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAdjustmentOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Adjustment of Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAdjustmentOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in fair value of derivative liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants and Rights Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization and Plan of Business Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred underwriting fee.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred underwriting fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows from Investing Activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Offering Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred offering costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PerShareAmountToBeMaintainedInTheTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Per share amount to be maintained in the trust account.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PerShareAmountToBeMaintainedInTheTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Per Share Amount To Be Maintained In The Trust Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PerShareAmountToBeMaintainedInTheTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Per share amount to be maintained in the trust account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measurements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dilutive securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_UnderwritingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Underwriting [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_UnderwritingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Underwriting Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_UnderwritingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Underwriting [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProposedPublicOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proposed Public Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProposedPublicOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proposed Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProposedPublicOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proposed Public Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_CommonStockSharePricePerShareForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock share price per share for warrants redemption.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_CommonStockSharePricePerShareForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Share Price Per Share For Warrants Redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_CommonStockSharePricePerShareForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock share price per share for warrants redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Preference stock, shares authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfProceedsFromPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage Of Proceeds From Private Placement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfProceedsFromPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Proceeds From Private Placement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfProceedsFromPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of Proceeds from Private Placement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputExpectedTermMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Expected Term [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputExpectedTermMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected term to De-SPAC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_AmountPaidToProvider_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount paid to provider.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_AmountPaidToProvider_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amount Paid To Provider</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_AmountPaidToProvider_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amount Paid To Provider</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Payable and Accrued Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance Initial Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross proceeds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_SharePriceRangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Price Range [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputComparabilityAdjustmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Comparability Adjustment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputComparabilityAdjustmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Probability of De-SPAC and market adjustment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Liabilities, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accrued Liabilities, Current, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Issued, Shares, Share-Based Payment Arrangement, Forfeited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares Issued, Shares, Share-Based Payment Arrangement, Forfeited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">shares issued, shares, share-based payment arrangement, forfeited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Shares that are subject to forfeiture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and Cash Equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows from Operating Activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmIndividualTitleAndPositionOrGroupOrCommitteeNameExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">LIABILITIES AND SHAREHOLDER'S EQUITY</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Event [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Income (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Loss from operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredOfferingCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred offering costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredOfferingCost_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred offering cost.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredOfferingCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Offering Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputRiskFreeInterestRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Risk Free Interest Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputRiskFreeInterestRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Risk-free rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PerShareValueOfResidualAssetsRemainingAvailableForDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Per share value of residual assets remaining available for distribution.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PerShareValueOfResidualAssetsRemainingAvailableForDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Per Share Value Of Residual Assets Remaining Available For Distribution</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PerShareValueOfResidualAssetsRemainingAvailableForDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Per share value of residual assets remaining available for distribution</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketableSecuritiesPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Marketable Securities, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketableSecuritiesPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and Marketable Securities Held in Trust Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_CommitmentsAndContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of fair value assets and liabilities measured on recurring basis.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DrexelHamiltonLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Drexel Hamilton LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DrexelHamiltonLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Drexel Hamilton, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DrexelHamiltonLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Drexel Hamilton LLC Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Segment Reporting Information, by Segment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Working capital.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Working Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Working Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_Class2WarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class 2 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_Class2WarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class 2 Warrants Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ShareTransferRestrictionThresholdConsecutiveTradingDays_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share transfer restriction threshold consecutive trading days.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ShareTransferRestrictionThresholdConsecutiveTradingDays_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Transfer Restriction Threshold Consecutive Trading Days</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ShareTransferRestrictionThresholdConsecutiveTradingDays_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share Transfer Restriction Threshold Consecutive Trading Days</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated Deficit [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesSubjectToMandatoryRedemptionChangesInRedemptionValuePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Subject to Mandatory Redemption, Changes in Redemption Value, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesSubjectToMandatoryRedemptionChangesInRedemptionValuePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A Ordinary Shares Subject to Possible Redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProposedPublicOfferingToCompleteABusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proposed Public Offering to Complete a Business Combination</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProposedPublicOfferingToCompleteABusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proposed public offering to complete a business combination.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProposedPublicOfferingToCompleteABusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proposed public offering to complete a business combination</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Policies [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetHeldInTrustMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset, Held-in-Trust [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingDiscountPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred underwriting discount per unit.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingDiscountPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Discount Per Unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingDiscountPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Underwriting Discount Per Unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share-Based Compensation Arrangement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Current Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Loss per Class B Ordinary Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredOfferingCostsIncludedInAccruedOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Offering Costs Included in Accrued Offering Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredOfferingCostsIncludedInAccruedOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred offering costs included in accrued offering costs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredOfferingCostsIncludedInAccruedOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred offering costs included in accrued offering costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementBusinessSegmentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segments [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivatives, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_SponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sponsor [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_SponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sponsor [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_SponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsor [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfGrossProceedsFromIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of gross proceeds from issuance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfGrossProceedsFromIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Gross Proceeds From Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfGrossProceedsFromIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of gross proceeds from issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_OverallotmentOptionVestingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Overallotment option vesting period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_OverallotmentOptionVestingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Overallotment Option Vesting Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_OverallotmentOptionVestingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Overallotment Option Vesting Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProposedPublicOfferingTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proposed Public Offering [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProposedPublicOfferingTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The entire disclosure for proposed publilc offering.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ProposedPublicOfferingTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proposed Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_BusinessContactMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Contact [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivatePlacementTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Private Placement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivatePlacementTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivatePlacementTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WarrantLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrant liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WarrantLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant Liabilities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WarrantLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrant Liabilities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shareholders' Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows from Financing Activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Entities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationDateOfIncorporation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation, Date of Incorporation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationDateOfIncorporation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity incorporation, date of incorporation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Component [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, City or Town</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_CohenAndCompanySecuritiesLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cohen And Company Securities LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_CohenAndCompanySecuritiesLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cohen&#160;&amp; Company Securities, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_CohenAndCompanySecuritiesLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cohen And Company Securities LLC Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Acquisition [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, New Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class B ordinary shares issued to Initial Shareholder</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Attributable to Parent [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Numerator:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Denominator:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_Class1WarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class 1 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_Class1WarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class 1 Warrants Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in investing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockConversionBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Conversion Basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockConversionBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock, Conversion Basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_TransactionCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Transaction Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_TransactionCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transaction Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_TransactionCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioPreviouslyReportedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Previously Reported [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioPreviouslyReportedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Previously Reported [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FounderShareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Founder Share [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FounderShareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Founder share.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FounderShareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Founder Shares [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredOfferingCostsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Offering Costs Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredOfferingCostsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred offering costs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredOfferingCostsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Offering Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Shares Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Temporary equity shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfHigherMarketValueOfNewlyIssuedPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of higher market value of newly issued price.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfHigherMarketValueOfNewlyIssuedPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Higher Market Value Of Newly Issued Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfHigherMarketValueOfNewlyIssuedPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of higher market value of newly issued price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest earned on cash and marketable securities held in Trust Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest earned on cash and marketable securities held in Trust Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_NumberOfDaysForAParticularEventToGetOverForDeterminingTradingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of days for a particular event to get over for determining trading period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_NumberOfDaysForAParticularEventToGetOverForDeterminingTradingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Days For A Particular Event To Get Over For Determining Trading Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_NumberOfDaysForAParticularEventToGetOverForDeterminingTradingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number Of Days For A Particular Event To Get Over For Determining Trading Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Acquisition, Acquiree [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ShareRedemptionTriggerPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share redemption trigger price.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ShareRedemptionTriggerPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Redemption Trigger Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ShareRedemptionTriggerPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share redemption trigger price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Voting Equity Interest Acquired, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business combination, voting equity interest acquired, percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PostBusinessCombinationTargetCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Post Business Combination Target Company [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PublicWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PublicWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PublicWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Public Warrants Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SubsidiariesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsidiaries [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SubsidiariesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsidiaries [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AddressTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Address Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DissolutionCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dissolution Commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DissolutionCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dissolution commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DissolutionCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Dissolution commitments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Working Capital Deficit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Working capital deficit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Working capital deficit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivatePlacementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfFairMarketValueOfTargetBusinessToAssetHeldInTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of fair market value of target business to asset held in trust account.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfFairMarketValueOfTargetBusinessToAssetHeldInTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Fair Market Value Of Target Business To Asset Held In Trust Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfFairMarketValueOfTargetBusinessToAssetHeldInTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of fair market value of target business to asset held in trust account.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantOrRightIssuePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class of warrant or right issue price.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantOrRightIssuePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class Of Warrant Or Right Issue Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassOfWarrantOrRightIssuePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of warrant or right, issue price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_AccretionForCommonSharesToRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accretion for common shares to redemption.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_AccretionForCommonSharesToRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accretion For Common Shares To Redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_AccretionForCommonSharesToRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accretion of Class&#160;A ordinary shares to redemption amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfFounderShareIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of founder share issued.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfFounderShareIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Founder Share Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PercentageOfFounderShareIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage Of Founder Share Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireRestrictedInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Restricted Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireRestrictedInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Payments to Acquire Restricted Investments, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireRestrictedInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payments to Acquire Restricted Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock, shares outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Common Stock, Shares, Outstanding, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Common Stock, Shares, Outstanding, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_CommonStockRedemptionExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common Stock Redemption Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_CommonStockRedemptionExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Redemption Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_CommonStockRedemptionExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock redemption exercise price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FairValueOfPrivatePlacementWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value of private placement warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_FairValueOfPrivatePlacementWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value of Private Placement Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityExTransitionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Ex Transition Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivateWarrantsUnderwritersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Private&#160;warrants underwriters.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivateWarrantsUnderwritersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Warrants Underwriters [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrivateWarrantsUnderwritersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private&#160;Warrants - Underwriters [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RestatementDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revision of Prior Period [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_OfferingCostsIncludedInAccruedOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offering costs included in accrued offering costs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_OfferingCostsIncludedInAccruedOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offering Costs Included In Accrued Offering Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_OfferingCostsIncludedInAccruedOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offering costs included in accrued offering costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recently Issued Accounting Standards</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Exercise Price of Warrants or Rights</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Combination, Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Exercise Price of Warrants or Rights</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Class of warrant or right, exercise price of warrants or rights</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Accretion to Redemption Value, Adjustment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remeasurement of carrying value to redemption value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalLoanOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Working capital loan outstanding.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalLoanOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Working Capital Loan Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_WorkingCapitalLoanOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Working Capital Loan Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash - Beginning of the period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash - End of the period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrecognized Tax Benefits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrecognized tax benefits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation and Presentation of Financial Statements [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance of ordinary shares to Sponsor</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_SingleReportableSegmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Single Reportable Segment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrepaidInsuranceCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Prepaid insurance current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrepaidInsuranceCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Insurance Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PrepaidInsuranceCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid insurance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock, par or stated value per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Current Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncash Investing and Financing Items [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-cash investing and financing activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredLegalFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred legal fee payable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredLegalFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Legal Fee Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredLegalFeePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred legal fee payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PeriodOfTradingDaysWithInSpecifiedWindowForMinimumCommonStockPriceForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Period of trading days with in specified window for minimum common stock price for warrants redemption.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PeriodOfTradingDaysWithInSpecifiedWindowForMinimumCommonStockPriceForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Period Of Trading Days</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_PeriodOfTradingDaysWithInSpecifiedWindowForMinimumCommonStockPriceForWarrantsRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Period of trading days</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_TransactionCostsRelatedtoDerivativeWarrantsLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Transaction costs related to derivative warrants liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_TransactionCostsRelatedtoDerivativeWarrantsLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transaction Costs Related to Derivative Warrants Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_TransactionCostsRelatedtoDerivativeWarrantsLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction costs allocable to derivative liabilities &#8211; Private Placement Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_TransactionCostsRelatedtoDerivativeWarrantsLiabilities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Transaction costs allocable to derivative liabilities &#8211; Private Placement Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Information</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesSubscribedButUnissued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Subscribed but Unissued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesSubscribedButUnissued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock, Shares Subscribed but Unissued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Offering costs allocated to fair value equity instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingCommissionsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred Underwriting Commissions Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingCommissionsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Commissions Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredUnderwritingCommissionsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred underwriting fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of Private Warrants at Initial Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Initial Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid-in Capital [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Class A [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A ordinary shares [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common Class A [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassAOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class A Ordinary Shares [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_ClassAOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class A ordinary shares.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USTreasurySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">U.S. Treasury Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USTreasurySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">US Treasury Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputPriceVolatilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Price Volatility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputPriceVolatilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Volatility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RestatementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revision of Prior Period [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredLegalFeeNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred legal fee non current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredLegalFeeNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Legal Fee Non Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_DeferredLegalFeeNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred legal fee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_Classofwarrantorrightissuedduringtheperiod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class of warrant or right issued during the period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_Classofwarrantorrightissuedduringtheperiod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of warrant or right issued during the period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_Classofwarrantorrightissuedduringtheperiod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of warrants or right underwritting discount purchase</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Quantitative Information Regarding Market Assumptions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Changes in Fair Value of Level 3 Derivative Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk, Credit Risk, Policy [Policy Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_RemeasurementOfClassAOrdinarySharesToRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Remeasurement of class a ordinary shares to redemption value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_RemeasurementOfClassAOrdinarySharesToRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Remeasurement of Class A Ordinary Shares To Redemption Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_RemeasurementOfClassAOrdinarySharesToRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remeasurement of Class&#160;A ordinary shares to redemption value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid in Capital</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net loss to net cash used in operating activities:</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_OfferingCostsAssociatedwiththeInitialPublicOfferingTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offering Costs Associated with the Initial Public Offering [Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense, Noncurrent</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term prepaid insurance</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Filer Category</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmProfitLossMeasureHowUsedDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Description of Segment Reporting</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustments to Additional Paid in Capital, Warrant Issued</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning balance, shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Line Items]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_LiquidityAndCapitalResourcesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Liquidity and capital resources policy text block.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="kcac_LiquidityAndCapitalResourcesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liquidity And Capital Resources [Policy Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
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          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kcac_FounderSharesNoLongerSubjectToForfeiture" xlink:to="kcac_FounderSharesNoLongerSubjectToForfeiture_lbl"/>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OverAllotmentOptionMember" xlink:to="us-gaap_OverAllotmentOptionMember_lbl"/>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kcac_DeferredUnderwritingCommissionPerUnit" xlink:to="kcac_DeferredUnderwritingCommissionPerUnit_lbl"/>
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          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kcac_WorkingCapitalLoanFromRelatedPartyNonCurrent" xlink:to="kcac_WorkingCapitalLoanFromRelatedPartyNonCurrent_lbl"/>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl"/>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kcac_InitialPublicOffering" xlink:to="kcac_InitialPublicOffering_lbl"/>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MinimumMember" xlink:to="srt_MinimumMember_lbl"/>
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          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kcac_IncreaseDecreaseInDeferredLegalFee" xlink:to="kcac_IncreaseDecreaseInDeferredLegalFee_lbl"/>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kcac_PercentageOfTransactionFee" xlink:to="kcac_PercentageOfTransactionFee_lbl"/>
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          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfDebt" xlink:to="us-gaap_RepaymentsOfDebt_lbl"/>
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          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kcac_ClassOfWarrantsOrRightPurchasePricePerWarrant" xlink:to="kcac_ClassOfWarrantsOrRightPurchasePricePerWarrant_lbl"/>
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  </xsd:annotation>
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  <xsd:element id="kcac_ProposedPublicOfferingToCompleteABusinessCombination" name="ProposedPublicOfferingToCompleteABusinessCombination" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_ClassOfWarrantsOrRightPurchaseDuringTheYear" name="ClassOfWarrantsOrRightPurchaseDuringTheYear" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_WarrantInstrumentsPolicyTextBlock" name="WarrantInstrumentsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_CohenAndCompanySecuritiesLLCMember" name="CohenAndCompanySecuritiesLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_DeferredUnderwritingCommissionsNoncurrent" name="DeferredUnderwritingCommissionsNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_OrganizationAndPlanOfBusinessOperationsTable" name="OrganizationAndPlanOfBusinessOperationsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_OutOfPocketExpenses" name="OutOfPocketExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_PercentageOfRedeemingSharesOfPublicSharesWithoutTheCompanysPriorWrittenConsent" name="PercentageOfRedeemingSharesOfPublicSharesWithoutTheCompanysPriorWrittenConsent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_ClassOfWarrantsOrRightsIssuedIssuePricePerWarrant" name="ClassOfWarrantsOrRightsIssuedIssuePricePerWarrant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PercentageOfHigherMarketValueOfNewlyIssuedPrice" name="PercentageOfHigherMarketValueOfNewlyIssuedPrice" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_Classofwarrantorrightissuedduringtheperiod" name="Classofwarrantorrightissuedduringtheperiod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PaymentOfOfferingCosts" name="PaymentOfOfferingCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_WorkingCapitalLoanFromRelatedPartyNonCurrent" name="WorkingCapitalLoanFromRelatedPartyNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_IncreaseDecreaseFairValueOfWarrantsLiabilityInExcessOfPurchasePriceOfPrivatePlacementWarrants" name="IncreaseDecreaseFairValueOfWarrantsLiabilityInExcessOfPurchasePriceOfPrivatePlacementWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_PercentageOfRedeemableOutstandingShares" name="PercentageOfRedeemableOutstandingShares" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PrivatePlacementWarrantsMember" name="PrivatePlacementWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_CommitmentsAndContingenciesTable" name="CommitmentsAndContingenciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_AmountPaidToProvider" name="AmountPaidToProvider" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_PercentageOfFounderShareIssued" name="PercentageOfFounderShareIssued" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_ShareTransferRestrictionThresholdTradingDays" name="ShareTransferRestrictionThresholdTradingDays" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_AccruedOfferingCostsCurrent" name="AccruedOfferingCostsCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_ProceedsFromSaleOfUnitsNetOfUnderwritingDiscountsPaid" name="ProceedsFromSaleOfUnitsNetOfUnderwritingDiscountsPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_PublicWarrantsMember" name="PublicWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_LossOnChangeInFairValueOfDerivativeWarrantLiabilities" name="LossOnChangeInFairValueOfDerivativeWarrantLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_RestrictedInvestmentsTerm" name="RestrictedInvestmentsTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_NumberOfDaysForAParticularEventToGetOverForDeterminingTradingPeriod" name="NumberOfDaysForAParticularEventToGetOverForDeterminingTradingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PercentageOfProceedsFromPrivatePlacement" name="PercentageOfProceedsFromPrivatePlacement" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_LossOnChangeInFairValueOfDerivativeLiabilities" name="LossOnChangeInFairValueOfDerivativeLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_PeriodOfTradingDaysWithInSpecifiedWindowForMinimumCommonStockPriceForWarrantsRedemption" name="PeriodOfTradingDaysWithInSpecifiedWindowForMinimumCommonStockPriceForWarrantsRedemption" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_WarrantLiabilityInExcessOfPurchasePriceOfPrivatePlacementWarrants" name="WarrantLiabilityInExcessOfPurchasePriceOfPrivatePlacementWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_ClassOfWarrantsOrRightUnderwrittingDiscountPurchase" name="ClassOfWarrantsOrRightUnderwrittingDiscountPurchase" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_ClassOfWarrantsOrRightPurchase" name="ClassOfWarrantsOrRightPurchase" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_ProposedPublicOfferingMember" name="ProposedPublicOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_SingleReportableSegmentMember" name="SingleReportableSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_InitialPublicOffering" name="InitialPublicOffering" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_DeferredUnderwritingCommissionPerUnit" name="DeferredUnderwritingCommissionPerUnit" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_DeferredLegalFeePayable" name="DeferredLegalFeePayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_ProposedPublicOfferingTextBlock" name="ProposedPublicOfferingTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PrivateWarrantsUnderwritersMember" name="PrivateWarrantsUnderwritersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_ClassOfWarrantsOrRightsIssuedDuringThePeriod" name="ClassOfWarrantsOrRightsIssuedDuringThePeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PerShareAmountToBeMaintainedInTheTrustAccount" name="PerShareAmountToBeMaintainedInTheTrustAccount" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_LiquidityAndCapitalResourcesPolicyTextBlock" name="LiquidityAndCapitalResourcesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PercentageOfTransactionFee" name="PercentageOfTransactionFee" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_SponsorMember" name="SponsorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_DeferredLegalFeeNonCurrent" name="DeferredLegalFeeNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_FounderSharesLockInPeriod" name="FounderSharesLockInPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_DeferredOfferingCostsIncludedInAccruedOfferingCosts" name="DeferredOfferingCostsIncludedInAccruedOfferingCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_DrexelHamiltonLLCMember" name="DrexelHamiltonLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_InitialPublicOfferingTable" name="InitialPublicOfferingTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_RemeasurementOfClassAOrdinarySharesToRedemptionValue" name="RemeasurementOfClassAOrdinarySharesToRedemptionValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_NoticePeriodForWarrantsRedemption" name="NoticePeriodForWarrantsRedemption" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_FairValueOfPrivatePlacementWarrants" name="FairValueOfPrivatePlacementWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_PrivateWarrantsSponsorMember" name="PrivateWarrantsSponsorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_SharePriceEqualsOrExceedsTwelvePerUsdMember" name="SharePriceEqualsOrExceedsTwelvePerUsdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_PercentageOfFairMarketValueOfTargetBusinessToAssetHeldInTrustAccount" name="PercentageOfFairMarketValueOfTargetBusinessToAssetHeldInTrustAccount" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_DeferredUnderwritingFee" name="DeferredUnderwritingFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_WarrantsRedemptionPricePerShare" name="WarrantsRedemptionPricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_FounderSharesNoLongerSubjectToForfeiture" name="FounderSharesNoLongerSubjectToForfeiture" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_SharePriceRangeAxis" name="SharePriceRangeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_PrivatePlacementTable" name="PrivatePlacementTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_CommitmentsAndContingenciesLineItems" name="CommitmentsAndContingenciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_ChangesInPrepaidInsurance" name="ChangesInPrepaidInsurance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_ConversionOfAdvancesAndShortTermPromissoryNotesToWorkingCapitalLoansRelatedParty" name="ConversionOfAdvancesAndShortTermPromissoryNotesToWorkingCapitalLoansRelatedParty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_EmergingGrowthCompanyPolicyTextBlock" name="EmergingGrowthCompanyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PercentageOfHigherMarketValueOfPublicWarrants" name="PercentageOfHigherMarketValueOfPublicWarrants" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" name="ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_OverallotmentOptionVestingPeriod" name="OverallotmentOptionVestingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_WarrantLiabilitiesMember" name="WarrantLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_WorkingCapitalLoansRelatedPartyPolicyTextBlock" name="WorkingCapitalLoansRelatedPartyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_WorkingCapitalLoanOutstanding" name="WorkingCapitalLoanOutstanding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_PrepaidInsuranceCurrent" name="PrepaidInsuranceCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_IncreaseDecreaseInDeferredLegalFee" name="IncreaseDecreaseInDeferredLegalFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_MeasurementInputTermMember" name="MeasurementInputTermMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_PostBusinessCombinationTargetCompanyMember" name="PostBusinessCombinationTargetCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_DeferredUnderwritingDiscount" name="DeferredUnderwritingDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_CommonStockSharePricePerShareForWarrantsRedemption" name="CommonStockSharePricePerShareForWarrantsRedemption" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_WorkingCapitalDeficit" name="WorkingCapitalDeficit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_Class2WarrantsMember" name="Class2WarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_DeferredLegalFeesPayable" name="DeferredLegalFeesPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_DissolutionCommitments" name="DissolutionCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_PerShareValueOfResidualAssetsRemainingAvailableForDistribution" name="PerShareValueOfResidualAssetsRemainingAvailableForDistribution" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_ClassOfWarrantsOrRightPurchasePricePerWarrant" name="ClassOfWarrantsOrRightPurchasePricePerWarrant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_SharePriceRangeDomain" name="SharePriceRangeDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_OfferingCostsIncludedInAccruedOfferingCosts" name="OfferingCostsIncludedInAccruedOfferingCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_TransactionCostsRelatedtoDerivativeWarrantsLiabilities" name="TransactionCostsRelatedtoDerivativeWarrantsLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_OfferingCostsAssociatedwiththeInitialPublicOfferingTextBlock" name="OfferingCostsAssociatedwiththeInitialPublicOfferingTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PrivatePlacementAbstract" name="PrivatePlacementAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_DeferredUnderwritingDiscountPerUnit" name="DeferredUnderwritingDiscountPerUnit" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_Class1WarrantsMember" name="Class1WarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_PercentageOfGrossProceedsFromIssuance" name="PercentageOfGrossProceedsFromIssuance" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_WorkingCapital" name="WorkingCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_TradingDaysSpecifiedWindowForMinimumCommonStockPriceForWarrantsRedemption" name="TradingDaysSpecifiedWindowForMinimumCommonStockPriceForWarrantsRedemption" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PrivatePlacementLineItems" name="PrivatePlacementLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_ClassOfWarrantOrRightIssuePrice" name="ClassOfWarrantOrRightIssuePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PercentageOfPublicSharesToBeRedeemedOnNonCompletionOfBusinessCombination" name="PercentageOfPublicSharesToBeRedeemedOnNonCompletionOfBusinessCombination" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_FounderShareMember" name="FounderShareMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_AccretionForCommonSharesToRedemption" name="AccretionForCommonSharesToRedemption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="kcac_NonCashDeferredUnderwritingFeePayable" name="NonCashDeferredUnderwritingFeePayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_PeriodWithinWhichInitialBusinessCombinationShallBeConsummatedFromTheClosingOfInitialPublicOffering" name="PeriodWithinWhichInitialBusinessCombinationShallBeConsummatedFromTheClosingOfInitialPublicOffering" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_UnderwritingMember" name="UnderwritingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_ShareRedemptionTriggerPrice" name="ShareRedemptionTriggerPrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="kcac_TransactionCosts" name="TransactionCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems" name="ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="kcac_ShareTransferRestrictionThresholdConsecutiveTradingDays" name="ShareTransferRestrictionThresholdConsecutiveTradingDays" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_PrivatePlacementTextBlock" name="PrivatePlacementTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="kcac_DeferredOfferingCost" name="DeferredOfferingCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="kcac_ScheduleOfOrdinarySharesSubjectToPossibleRedemptionTableTextBlock" name="ScheduleOfOrdinarySharesSubjectToPossibleRedemptionTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
</xsd:schema>
