ELECTROLYTE SOLUTION, AND ELECTROCHEMICAL DEVICE

The present invention aims to provide an electrolyte solution which has a low initial resistance, the resistance of which is less likely to increase even after long-term use, and which has high capacity retention. The present invention relates to: (i) an electrolyte solution including a mononitrile...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Takahashi Kenzou
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	The present invention aims to provide an electrolyte solution which has a low initial resistance, the resistance of which is less likely to increase even after long-term use, and which has high capacity retention. The present invention relates to: (i) an electrolyte solution including a mononitrile compound and a spirobipyrrolidinium salt, and being free from a non-fluorinated sulfolane compound, the spirobipyrrolidinium salt being present at a concentration of not less than 0.70 mol/L but less than 1.00 mol/L; and (ii) an electrolyte solution including a mononitrile compound, a non-fluorinated sulfolane compound, and a spirobipyrrolidinium salt, the spirobipyrrolidinium salt being present at a concentration of not less than 0.70 mol/L and not more than 1.30 mol/L.