... 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 ... .018139±8≥25≥2.0single matte side0.032275±10≥27.5≥3.0single matte side0.07610±15 ... width:50~1200mm Pure Copper Foil Specialized For Lithium Battery