Electrolyte solution for secondary battery and secondary battery using same

The present invention provides a lithium ion secondary battery having excellent high temperature cycle characteristics. The present invention relates to an electrolyte solution containing a non-aqueous electrolyte solvent containing two or more open chain sulfone compounds represented by a specific...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Takahashi, Makiko, Noguchi, Takehiro
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention provides a lithium ion secondary battery having excellent high temperature cycle characteristics. The present invention relates to an electrolyte solution containing a non-aqueous electrolyte solvent containing two or more open chain sulfone compounds represented by a specific formula and one or more carbonate ester compounds represented by a specific formula; and to a secondary battery comprising these.