NONAQUEOUS ELECTROLYTIC SOLUTION FOR ELECTRIC DOUBLE LAYER CAPACITOR, AND ELECTRIC DOUBLE LAYER CAPACITOR BY USE THEREOF

PROBLEM TO BE SOLVED: To provide an inexpensive nonaqueous electrolytic solution for an electric double layer capacitor, which can suppress the decomposition of the electrolytic solution under a high-voltage condition and which can reduce a generated gas and a deposit on an electrode surface.SOLUTIO...

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Hauptverfasser:	HACHIYA HOJIN, NAKAMURA TADAHIDE, SAKAMI DAISUKE
Format:	Patent
Sprache:	eng ; jpn
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:	PROBLEM TO BE SOLVED: To provide an inexpensive nonaqueous electrolytic solution for an electric double layer capacitor, which can suppress the decomposition of the electrolytic solution under a high-voltage condition and which can reduce a generated gas and a deposit on an electrode surface.SOLUTION: A nonaqueous electrolytic solution for an electric double layer capacitor comprises: 0.01-5 mass% of a predetermined imidazolium salt; 0.5 mol/L or more of an electrolyte; and at least one solvent selected from a carbonate solvent and a lactone solvent.SELECTED DRAWING: None 【課題】高電圧下での電解液の分解を抑制でき、発生ガス及び電極表面の堆積物を抑制できる安価な電気二重層キャパシタ用非水系電解液を提供する。【解決手段】電気二重層キャパシタ用非水系電解液を、所定のイミダゾリウム塩を０．０１〜５質量％と、成分：０．５ｍｏｌ／Ｌ以上の電解質と、成分：カーボネート溶媒及びラクトン溶媒から選ばれる少なくとも１種と、を含むものとする。【選択図】なし