v3.25.2
Related Party Balances and Transactions - Purchase of raw material or property, plant and equipment (Details) - Related party - Purchase of raw material or property, plant and equipment - CNY (¥)
¥ in Thousands
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Related Party Balances and Transactions    
Purchase of raw material or property, plant and equipment ¥ 20,501 ¥ 151,059
Wuhan Weineng Battery Assets Co., Ltd. and its subsidiary    
Related Party Balances and Transactions    
Purchase of raw material or property, plant and equipment 6,829  
Xunjie Energy (Wuhan) Co., Ltd.    
Related Party Balances and Transactions    
Purchase of raw material or property, plant and equipment 5,530 15,521
Nanjing Weibang Transmission Technology Co., Ltd.    
Related Party Balances and Transactions    
Purchase of raw material or property, plant and equipment 4,363 55,305
VTA Technology Inc. and its subsidiaries    
Related Party Balances and Transactions    
Purchase of raw material or property, plant and equipment ¥ 3,779  
Kunshan Siwopu Intelligent Equipment Co., Ltd.    
Related Party Balances and Transactions    
Purchase of raw material or property, plant and equipment   54,819
Jianglai Advanced Manufacturing Technology (Anhui) Co., Ltd.    
Related Party Balances and Transactions    
Purchase of raw material or property, plant and equipment   ¥ 25,414