Title:
BATTERY SEPARATOR
Document Type and Number:
Japanese Patent JP2015043266
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a battery separator flame retarded without deteriorating battery characteristics.SOLUTION: In a battery separator obtained by compounding a porous ceramic layer on a porous support comprising a fiber matrix containing a polyester fiber, a surface of the porous support has a flame retardant polyester adhesion layer, and a flame retardant polyester has a molecular weight of from 1,000 to about 100,000, and is a polyester comprising aromatic dicarboxylic acid, such as terephthalic acid and isophthalic acid, and aliphatic glycol, such as ethylene glycol and propylene glycol.
Inventors:
TAKAOKA KAZUCHIYO
HYODO KENJI
HYODO KENJI
Application Number:
JP2013174159A
Publication Date:
March 05, 2015
Filing Date:
August 26, 2013
Export Citation:
Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
H01M2/16