BATTERY SEPARATOR

PROBLEM TO BE SOLVED: To provide a desirable battery separator that is excellent in liquid retention, tensile strength and piercing strength and causes no degradations in battery performance. SOLUTION: The alkaline battery separator is so constructed that a nonwoven fabric sheet of organic fiber is...

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Bibliographic Details
Main Authors TOYOSHIMA SETSUO, TANAKA MASAHITO
Format Patent
LanguageEnglish
Published 12.05.2000
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:PROBLEM TO BE SOLVED: To provide a desirable battery separator that is excellent in liquid retention, tensile strength and piercing strength and causes no degradations in battery performance. SOLUTION: The alkaline battery separator is so constructed that a nonwoven fabric sheet of organic fiber is impregnated with a resin-dispersing solution that fixes in it. The resin-dispersing solution is obtained through the steps of dissolving in an organic solvent at least one nonaqueous binder resin selected from a styrene-series thermoplastic resin, an olefin-series resin and a polyolefin halide-series polytetrafluoroethylene resin, dispersing the dissolvent in an aqueous solution including a water-soluble high polymer and/or a surface active agent, and removing the solvent by distillation.
Bibliography:Application Number: JP19980306834