polyethylene separator for lithium ion battery Technical: ion exchange membrane 16 /20/25micron thickness single ... heat shrink TD%≤1516micron ,25micron, 30micron,40micronfor lithium ion battery application.Lithium Iron Phosphate,Lithium Manganese Dioxide ,Lithium Cobalt ... Oxide ;,graphite materials (MCMB), Copper Foil and Al foil for new power lithium ion batteries.andywang at battery-materials.cn