Revenue Recognition (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenues	$ 293,931,961	$ 244,166,312
Lithium Business [Member]
Revenues	219,964,972
Ni-MH Batteries and Accessories [Member]
Revenues	73,966,989
China Mainland [Member]
Revenues	142,429,214	139,096,630
China Mainland [Member] | Lithium Business [Member]
Revenues	111,255,771
China Mainland [Member] | Ni-MH Batteries and Accessories [Member]
Revenues	31,173,443
Asia, others [Member]
Revenues	119,255,566	81,060,414
Asia, others [Member] | Lithium Business [Member]
Revenues	100,595,601
Asia, others [Member] | Ni-MH Batteries and Accessories [Member]
Revenues	18,659,965
Europe [Member]
Revenues	24,482,803	18,684,852
Europe [Member] | Lithium Business [Member]
Revenues	5,330,496
Europe [Member] | Ni-MH Batteries and Accessories [Member]
Revenues	19,152,307
North America [Member]
Revenues	7,385,580	4,769,797
North America [Member] | Lithium Business [Member]
Revenues	2,783,104
North America [Member] | Ni-MH Batteries and Accessories [Member]
Revenues	4,602,476
Other [Member]
Revenues	378,798	$ 554,619
Other [Member] | Lithium Business [Member]
Revenues	0
Other [Member] | Ni-MH Batteries and Accessories [Member]
Revenues	$ 378,798