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Concentrations and Credit Risk (Details) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Sales of finished goods and raw materials $ 37,566,152 $ 22,194,348
Zhengzhou BAK Battery Co Ltd [Member]    
Sales of finished goods and raw materials [1] $ 12,770,075 $ 3,961,050
Concentration risk, percentage [1] 33.99% 17.85%
Customer A [Member]    
Sales of finished goods and raw materials $ 8,322,504 $ 7,222,245
Concentration risk, percentage 22.15% 32.54%
Customer B [Member]    
Sales of finished goods and raw materials [2] $ 3,806,110
Concentration risk, percentage 10.13% [2]
Customer C [Member]    
Sales of finished goods and raw materials [2] $ 3,308,638
Concentration risk, percentage [2] 14.91%
[1] 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 $7,691,611 to the Company.
[2] Comprised less than 10% of net revenue for the respective period.