Pure Copper Foil/Sheet: special in manufacture of Lithium Battery! pure Copper foil /pure copper sheetPure Copper foil For lithium batteryThickness:88,10,12,18,32,70,micronetc. width 50~1200mm Copper Foil For Lithium BatteryProduct nameThickness(mm)Weight per unit area (g/m2)Tensile strength(kg/cm2)Elongation rate%single matte side0.00876±4≥20≥1.5single matte side0.0185±4≥20≥1.5single,double ...