v3.26.1
Document And Entity Information
 12 Months Ended
Dec. 31, 2025
shares
Document Information [Line Items]  
Entity Central Index Key 0001907184
Entity Registrant Name Electra Battery Materials Corp
Amendment Flag false
Current Fiscal Year End Date --12-31
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2025
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Period End Date Dec. 31, 2025
Document Transition Report false
Document Shell Company Report false
Entity File Number 000-41356
Entity Incorporation, State or Country Code Z4
Entity Address, Address Line One 133 Richmond Street W, Suite 602
Entity Address, City or Town Toronto
Entity Address, State or Province ON
Entity Address, Postal Zip Code M5H 2L3
Entity Address, Country CA
Title of 12(b) Security Common Shares
Trading Symbol ELBM
Security Exchange Name NASDAQ
Entity Common Stock, Shares Outstanding 103,738,330
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Emerging Growth Company true
Entity Ex Transition Period false
ICFR Auditor Attestation Flag false
Document Financial Statement Error Correction [Flag] false
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Auditor Firm ID 1930
Auditor Location Toronto, Ontario
Auditor Name MNP LLP
Business Contact [Member]  
Document Information [Line Items]  
Entity Address, Address Line One 133 Richmond Street W, Suite 602
Entity Address, City or Town Toronto
Entity Address, State or Province ON
Entity Address, Postal Zip Code M5H 2L3
Contact Personnel Name Trent Mell
City Area Code 416
Local Phone Number 900-3891