Nonaqueous electrolyte solution secondary battery separator...

Details Nonaqueous electrolyte solution secondary battery separator... Nonaqueous electrolyte solution secondary battery separator...

2011-08-23

2011-08-23

Gilliam, Barbara L (Department: 1727)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

C429S254000, C429S129000, C429S142000

Reexamination Certificate

active

08003262

ABSTRACT:
An object of this invention is to improve battery performance such as a rate capability of a nonaqueous electrolyte solution secondary battery using a separator constituting a thermoplastic resin-based porous film containing a filler.This invention provides a nonaqueous electrolyte solution secondary battery separator which is formed from a porous film containing a thermoplastic resin and a filler contained in the thermoplastic resin and has a ratio of an average pore diameter (μm) to a maximum pore diameter (μm) defined by ASTM F316-86 of 0.6 or more as well as relates to a nonaqueous electrolyte solution secondary battery using this separator.

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English Translation of JP 2002-088188, Mar. 2002 (Japanese reference supplied in applicant's IDS dated Feb. 6, 2006).
English Translation of JP 2002-128928, May 2002 (Japanese reference supplied in applicant's IDS dated Feb. 6, 2006).

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