Title:
SEPARATOR FOR LITHIUM ION SECONDARY BATTERY AND METHOD OF MANUFACTURING SEPARATOR FOR LITHIUM ION SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2015046230
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a separator for lithium ion secondary battery having high heat resistance and a low internal resistance by compounding a nonwoven fabric, inorganic particles and an organic binder, and to provide a method of manufacturing a separator for lithium ion secondary battery.SOLUTION: In a separator for lithium ion secondary battery having high heat resistance produced by compounding a nonwoven fabric, inorganic particles and an organic binder, surface of the inorganic particles is coated with a hydrogenated styrene-butadiene rubber. A coating liquid containing inorganic particles and an organic binder is given, and the medium of the coating liquid is dried and removed. Subsequently, a process liquid produced by dissolving a hydrogenated styrene-butadiene rubber into hydrocarbon is given, and the hydrocarbon is dried and removed.
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Inventors:
KATO MAKOTO
KATO KASUMI
KATO KASUMI
Application Number:
JP2013175157A
Publication Date:
March 12, 2015
Filing Date:
August 27, 2013
Export Citation:
Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
H01M2/16
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