COMPOSITE LITHIUM-ION BATTERY COPPER FOIL

Composite lithium-ion battery copper foil is an electrolytic copper foil for lithium-ion batteries independently produced by Guangzhou Fangbang Electronics Co., Ltd. Compared with traditional lithium-ion battery copper foil, composite lithium-ion battery copper foil has the advantages of high safety, high energy density and long service life. The material has a sandwich-like structure, with PET, PI, PPS and other polymer films with a thickness of 4~8μm as the support layer, and the two sides of the support layer are copper layers with a thickness of 0.5~4μm. The copper-plated layer on both sides has low roughness, uniform thickness and fine microscopic crystal structure, which can be widely used in power batteries, new energy vehicles and other fields.