... .Max width:1370mm 4.Hardness:soft Copper foil for lithium ion battery The nominal thickness 8-20 μm for ... well as dedicated electrolyzed copper foil double-sided light lithium battery,the scope of product breadth is 100-1300mm, ... copper foil for single-side and doule-side wool lithium battery,as it is affixed with cathode material ,the ... life of the battery. Ed Copper Foil for lithium ion battery