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Payables to Former Subsidiaries, net (Details) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Payables to former subsidiaries $ 1,508,523 $ 1,483,352
BAK Tianjin [Member]    
Payables to former subsidiaries 10,936
Shenzhen BAK [Member]    
Payables to former subsidiaries
BAK Shenzhen [Member]    
Payables to former subsidiaries $ 1,497,587 $ 1,483,352