Segment Information (Tables)

3 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Schedule of net revenues from manufacture of batteries by geographical areas

	Three months ended March 31,
	2020		2021
High power lithium batteries used in:
Electric vehicles	$	215,118	$	100,976
Light electric vehicles		751		34,104
Uninterruptable supplies		6,685,405		8,763,583
		6,901,274		8,898,663
Raw materials used in lithium batteries		-		517,386
Total	$	6,901,274	$	9,416,049

Schedule of net revenues from manufacture of batteries by geographical areas

	Three months ended March 31,
	2020		2021
Mainland China	$	6,876,789	$	7,625,793
Europe		-		1,789,045
Other		24,485		1,211
Total	$	6,901,274	$	9,416,049