Patent ID: 6710999
Filing Date: 2004-03-23
Classification: H01G,Y02E

Abstract:
An electric double layer capacitor comprising:a pair of polarized electrodes and an electrolytic solution capable of forming an electric double layer at the interface with the polarized electrodes; wherein the electrolytic solution comprises a salt of Formula 2, Formula 3, Formula 4, Formula 5, or Formula 6 as the electrolyte and at least dimethyl carbonate as a solvent (C3H7)(C2H5)3N+Xâˆ’â€ƒâ€ƒFormula 2 (C3H7)(C2H5)2(CH3)N+Xâˆ’â€ƒâ€ƒFormula 3 (C3H7)(C2H5)(CH3)2N+Xâˆ’â€ƒâ€ƒFormula 4wherein Xâˆ’ is an anion.