LITHIUM SULFONATED STYRENE OLIGOMER AND POLYMER ELECTROLYTE CONTANING THE SAME

PURPOSE: A lithium sulfonated styrene oligomer is provided to improve ionic conductivity, to minimize polarization effects under DC electric field, and to maintain electrochemical stability of a polymer electrolyte. CONSTITUTION: A lithium sulfonated styrene oligomer comprises a styrene oligomer wit...

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Bibliographic Details
Main Authors LEE, YEONG GI, PAK, JUNG GI
Format Patent
LanguageEnglish
Published 15.06.2000
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CABLES
CONDUCTORS
ELECTRICITY
INSULATORS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Summary:PURPOSE: A lithium sulfonated styrene oligomer is provided to improve ionic conductivity, to minimize polarization effects under DC electric field, and to maintain electrochemical stability of a polymer electrolyte. CONSTITUTION: A lithium sulfonated styrene oligomer comprises a styrene oligomer with a molecular weight between 200 and 10,000 and a sulfonic acid radical. The sulfonic acid is added to the styrene oligomer and the cations of the sulfonic acid are substituted with lithium. A polymer electrolyte comprises a lithium sulfonated styrene oligomer, a polymer and one or more plasticizers. The polymer is selected from the group consisting of polyethylene oxide, polyacrylonitrile, polymethylmethacrylate, polyvinylidenefluoride and polyvinylchloride. The plasticizers are selected from the group consisting of polyethylene glycol, ethylene carbonate, propylene carbonate, dimethyl carbonate and diethyl carbonate.
Bibliography:Application Number: KR19980050297