METHOD FOR SURFACE FLUORINATED MICROPOROUS SEPARATOR MEMBRANES IMPROVEMENT OF SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING MICROPOROUS SEPARATOR MANUFACTURED BY SAME METHOD

PURPOSE: A method for modifying the surface of microporous separator membranes is provided to improve physical stability and stable electrochemical characteristic by fluoridizing the surface of a microporous separator membrane. CONSTITUTION: A method for modifying the surface of microporous separato...

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Bibliographische Detailangaben
Hauptverfasser:	SEO, MYUNG SU, BYUN, HONG SIK, RHIM, JI WON, KIM, YOUNG JOONG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOSITIONS BASED THEREON 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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Beschreibung
Zusammenfassung:	PURPOSE: A method for modifying the surface of microporous separator membranes is provided to improve physical stability and stable electrochemical characteristic by fluoridizing the surface of a microporous separator membrane. CONSTITUTION: A method for modifying the surface of microporous separator membranes comprises the steps of: providing a microporous separator membrane of a secondary lithium battery; and fluoridizing the surface of the microporous separator membrane. The material for the microporous separator membrane is selected from the group consisting of polypropylene and polyethylene.