SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE COMPRISING SAME

The present disclosure relates to a separator for an electrochemical device comprising an inorganics-containing porous layer on at least one surface of a porous polymer support, and comprising inorganic fillers and a binder polymer, wherein the binder polymer comprises a first binder polymer, and th...

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Main Authors HAN, Sung-Jae, LEE, A-Young, LEE, Joo-Sung, KIM, Bong-Tae, MUN, Sung Cik, JUNG, Kil-An
Format Patent
LanguageEnglish
French
German
Published 08.05.2024
Subjects
BASIC ELECTRIC ELEMENTS
CAPACITORS
CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:The present disclosure relates to a separator for an electrochemical device comprising an inorganics-containing porous layer on at least one surface of a porous polymer support, and comprising inorganic fillers and a binder polymer, wherein the binder polymer comprises a first binder polymer, and the first binder polymer is poly(vinylidene fluoride-co-hexafluoropropylene) having a tan δ peak at -18°C to -5°C when measured by Dynamic Mechanical Analysis, and an electrochemical device comprising the same. The separator for an electrochemical device according to an embodiment of the present disclosure has improved adhesion property with electrode and safety at high temperature.
Bibliography:Application Number: EP20220846239