POLYOLEFIN MICROPOROUS MEMBRANE

Provided is a polyolefin microporous membrane which is able to sufficiently cope with a rapid temperature increase inside a battery, has no difficulty in a manufacturing process, and has an excellent hydrophilic property, high mechanical strength, and high porosity. The porous film is a film shape a...

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Bibliographische Detailangaben
1. Verfasser:	RYU, SU SUN
Format:	Patent
Sprache:	eng ; kor
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 PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	Provided is a polyolefin microporous membrane which is able to sufficiently cope with a rapid temperature increase inside a battery, has no difficulty in a manufacturing process, and has an excellent hydrophilic property, high mechanical strength, and high porosity. The porous film is a film shape and includes: a polyolefin resin of 30-70 wt%; and additives of 70-30 wt% which include cellulose fiber of 1-80 wt% against the polyolefin resin, a hydrocarbon-based polymer of liquid or wax form, a polyester plasticizer or an epoxy plasticizer, and a fluorinated surface active agent.