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Concentrations and Credit Risk (Details) - Schedule of transactions - USD ($)
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
BAK Shenzhen [Member]    
Concentrations and Credit Risk (Details) - Schedule of transactions [Line Items]    
Sales of finished goods and raw materials [1] $ 69,226
Zhengzhou BAK Battery Co., Ltd [Member]    
Concentrations and Credit Risk (Details) - Schedule of transactions [Line Items]    
Sales of finished goods and raw materials [2] 108,290
Zhengzhou BAK Electronics Co., Ltd. [Member]    
Concentrations and Credit Risk (Details) - Schedule of transactions [Line Items]    
Sales of finished goods and raw materials [3] 412,353
Trade accounts and bills receivables, net [3] 461,024
Zhengzhou BAK New Energy Vehicle Co., Ltd [Member]    
Concentrations and Credit Risk (Details) - Schedule of transactions [Line Items]    
Trade accounts and bills receivables, net [4] $ 911,599 $ 1,759,050
[1] Mr. Xiangqian Li is a director of Shenzhen BAK and BAK Shenzhen.
[2] Mr. Xiangqian Li, the Company’s former CEO, is a director of Zhengzhou BAK Battery Co., Ltd. Up to the date of this report, Zhengzhou BAK Battery Co., Ltd. repaid $2,327,491 to the Company.
[3] BAK Shenzhen has 95% equity interests in Zhengzhou BAK Electronics Co., Ltd. Up to the date of this report, Zhengzhou BAK Electronics Co., Ltd. repaid nil to the Company.
[4] Mr. Xiangqian Li is a director of Zhengzhou BAK New Energy Vehicle Co., Ltd. For the three months ended March 31, 2020 and 2021, sales of finished goods and raw materials to Zhengzhou BAK New Energy Vehicle Co., Ltd were nil. Up to the date of this report, Zhengzhou BAK New Energy Technology Co., Ltd repaid nil to the Company.