Battery separator

Details Battery separator Battery separator

H - Electricity

01

M

H01M 2/14 (2006.01) H01M 2/16 (2006.01) H01M 2/18 (2006.01)

Patent

CA 2434353

The present invention is directed to a battery separator. The battery separator comprises a microporous film having a first portion and a second portion. The first portion is bonded to the second portion. The bond has a strength greater than 5 g/in. The film has a thickness less than 1.7 mils, a Gurley of less than 50 sec/10 cc, and a puncture strength of greater than 400 g/mil.

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