High melt integrity battery separator for lithium ion batteries

Chemistry: electrical current producing apparatus – product – and – With control means responsive to battery condition sensing... – Temperature control

Reexamination Certificate

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C429S144000, C156S327000

Reexamination Certificate

active

07087343

ABSTRACT:
The battery separator for a lithium battery is made from a nonwoven flat sheet material having high temperature melt integrity, a microporous membrane having low temperature shutdown properties, and an adhesive bonding the nonwoven flat sheet to the microporous membrane and being adapted for swelling when contacted by an electrolyte.

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