... side polished,double sides polished,double sides coarse. Copper foil/cu foil/copper tape for lithium battery application. 1)Application: current ... (electrode backing) materials 2)We have 3types of Copper foil : one side polished,double side polished,double side ... also can supply other lithium battery materials,including aluminium foil,polyethene battery separator;LiFePO4,LiMn2O4,LiNiMnCoO2,LiCoO2,LTO, ...