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Payables to Former Subsidiaries, Net (Details) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
Payables to former subsidiaries, net $ 1,676,333 $ 1,483,352
BAK Tianjin [Member]    
Payables to former subsidiaries, net 44,762
Shenzhen BAK [Member]    
Payables to former subsidiaries, net
BAK Shenzhen [Member]    
Payables to former subsidiaries, net $ 1,631,571 $ 1,483,352