METHOD FOR PRODUCING POROUS FILM, POROUS FILM, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY USING THE SEPARATOR

METHOD FOR PRODUCING POROUS FILM, POROUS FILM, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY USING THE SEPARATOR

PROBLEM TO BE SOLVED: To provide a method for producing a porous film excellent in shutdown function, heat resistance, mechanical strengths and preparation to be thin films with good productivity, and to provide a separator for non-aqueous electrolyte batteries comprising the porous film, and a non-...

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Bibliographische Detailangaben
Hauptverfasser: UETANI YOSHIHIRO, NOMI TOSHISUKE, OIZUMI SHINICHI, UJIHARA MAKI, ICHIKAWA TOMOAKI
Format: Patent
Sprache:eng
Schlagworte:
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
ELECTRICITY
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for producing a porous film excellent in shutdown function, heat resistance, mechanical strengths and preparation to be thin films with good productivity, and to provide a separator for non-aqueous electrolyte batteries comprising the porous film, and a non-aqueous electrolyte battery using the separator for non-aqueous electrolyte batteries. SOLUTION: The method for producing the porous film is to prepare a stretched film by stretching a resin sheet comprising at least a polyolefin, subsequently irradiate the stretched film with vacuum ultraviolet ray. The separator for non-aqueous electrolyte batteries comprises the porous film prepared by the method of the invention. The non-aqueous electrolyte battery has the separator for non-aqueous electrolyte batteries of the invention. COPYRIGHT: (C)2009,JPO&INPIT