Separators for winding-type lithium secondary batteries...

Details Separators for winding-type lithium secondary batteries... Separators for winding-type lithium secondary batteries...

2005-06-27

2010-06-15

Neckel, Alexa D (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

C429S251000, C429S247000

Reexamination Certificate

active

07736810

ABSTRACT:
A porous separator for a winding-type lithium secondary battery having a gel-type polymer electrolyte includes a matrix made of polyvinyl chloride, or a matrix made of mixtures of polyvinylchloride and at least one polymer selected from the group consisting of polyvinylidenefluoride, a vinylidenefluoride/hexafluoropropylene copolymer, polymethacrylate, polyacrylonitrile and polyethyleneoxide.

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Office Action issued by the Japanese Patent Office in Japanese Patent Application No. 2002-101572 on Nov. 4, 2009.

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