ELECTROLYTE SOLUTION COMPOSITION AND SECONDARY BATTERY USING SAME

ELECTROLYTE SOLUTION COMPOSITION AND SECONDARY BATTERY USING SAME

The present invention provides an electrolyte composition comprising a propane sultone compound substituted with a specific substituent, a cyclic fluorocarbonate-based compound and a nonaqueous solvent, and a secondary battery comprising the electrolyte composition. The electrolyte composition accor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SONG, Kwanwook, LEE, Seongchul, KUM, Joonghan, CHOI, Han Young
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:The present invention provides an electrolyte composition comprising a propane sultone compound substituted with a specific substituent, a cyclic fluorocarbonate-based compound and a nonaqueous solvent, and a secondary battery comprising the electrolyte composition. The electrolyte composition according to the present invention has excellent SEI film-forming ability and HF-removing ability by comprising the cyclic fluorocarbonate-based compound together with the propane sultone compound substituted with a specific substituent, so that the lifespan characteristic and stability at high temperature can be improved.