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Concentrations and Credit Risk (Details 2) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Supplier A [Member]    
Net purchase $ 12,396,483 [1]
Concentration risk, percentage of net purchase 48.90% [1]
Supplier B [Member]    
Net purchase [1] $ 2,920,966
Concentration risk, percentage of net purchase [1] 21.40%
Zhengzhou BAK New Energy Vehicle Co., Ltd [Member]    
Net purchase [1],[2] $ 3,812,819 [3]
Concentration risk, percentage of net purchase [1],[2] 27.93% [3]
Shenzhen BAK [Member]    
Net purchase $ 3,884,309 [4] [1]
Concentration risk, percentage of net purchase 15.32% [4] [1]
[1] Comprised less than 10% of net purchase for the respective period.
[2] Mr. Xiangqian Li is a director of Zhengzhou BAK New Energy Vehicle Co., Ltd, which has 29% equity interests in Zhengzhou BAK New Energy Technology Co., Ltd. Up to the date of this report, Zhengzhou BAK New Energy Technology Co., Ltd repaid $741,353 to the Company.
[3] Mr. Xiangqian Li is a director of Zhengzhou BAK New Energy Vehicle Co., Ltd, which has 29% equity interests in Zhengzhou BAK New Energy Technology Co., Ltd. As of December 31, 2019 and 2020, receivable from Zhengzhou BAK New Energy Technology Co., Ltd were nil and $1,759,050, respectively, was included in trade accounts and bills receivable, net, Up to the date of this report, Zhengzhou BAK New Energy Technology Co., Ltd repaid $741,353 to the Company.
[4] Mr. Xiangqian Li is a director of Shenzhen BAK and BAK Shenzhen.