Sino Energy Coorperetion limited company is energy graduate school in the Chinese science, hospital subordinate battery manufacturing business enterprise, establishes in 2000, is the development and experiment base of two times of  battery research..Sino Energy Coorperetion has built  two factories in shenzhen, hunan, using automated production, the existing staff 2000 people ,the main products are polymer  lithium ion, cylindrical lithium-ion, lithium iron phosphate, nickel metal hydride,