Various  coating material  battery separator porous film 

PP Battery separator film with Al2O3/ Boehmite Ceramic coating 

Tianhong corporation has advanced international production lines for Li-ion battery separator by dry and uniaxial stretching process, equipped with high precision testing instruments, using high purity PP material and advanced production technology, mainly produce Li-ion battery separator film in thickness of 12-60 microns with different specifications, which is widely used in Li-ion power batteries, Li-ion energy storage battery and Li- ion digital product battery.

We are also producing the coating separator film : 

Inorganic materials, such as Al2O3, Boehmite, Ceramic..                  

√ Improve high temperature resistance. 

√ Good liquid absorption and retention ability. 

√ Reduce thermal shrinkage.   

√ Improve cycling and safety performance effectively.

 




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