COMPOSITE POLYMER ELECTROLYTE COMPRISING SINGLE-ION CONDUCTOR FOR LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF

PURPOSE: Provided is a composite polymer electrolyte for lithium secondary battery which has significantly improved ionic conductivity, thin thickness and reinforced mechanical property. CONSTITUTION: The composite polymer electrolyte(10) for a lithium secondary battery is manufactured by the method...

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Bibliographic Details
Main Authors JANG, SUN HO, LEE, YEONG GI, RYU, GWANG SEON
Format Patent
LanguageEnglish
Korean
Published 03.11.2004
Edition7
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
BASIC ELECTRIC ELEMENTS
CABLES
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
CONDUCTORS
ELECTRICITY
GENERAL PROCESSES OF COMPOUNDING
INSULATORS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Summary:PURPOSE: Provided is a composite polymer electrolyte for lithium secondary battery which has significantly improved ionic conductivity, thin thickness and reinforced mechanical property. CONSTITUTION: The composite polymer electrolyte(10) for a lithium secondary battery is manufactured by the method comprising the steps of: preparing a first polymer matrix(12) comprised of a first porous polymer having a first pore size; obtaining a solution of a single-ion conductor, mineral and second porous polymer having a second pore size lower than the first pore size in a cosolvent; coating the solution on the first polymer matrix to form a second polymer matrix(14); and impregnating an electrolytic solution(16) into the first polymer matrix(12) and the second polymer matrix(14).
Bibliography:Application Number: KR20030026420