| 摘要 |
PROBLEM TO BE SOLVED: To enhance electric conductivity, a voltage resistance and a heat resistance, by a method wherein an electrolyte of a non-water system electrolyte liquid impregnated in a polarization electrode is composed of a mixture system electrolyte of four class onium salt and salt having an electrolyte cation component indicated by a specified chemical formula. SOLUTION: An electric double layer capacitor has a polarization electrode and a non-water system electrolyte liquid impregnated in the polarization electrode, and the electrolyte of the non-water system electrolyte liquid is composed of a mixture system electrolyte of four class onium salt and salt having an electrolyte cation component indicated by formula I or formula II (R<1> is a hydrocarbon base or a hydrogen atom of the number of carbons 1 to 20 which may be replaced with a hydroxyl base; and R<2> , R<3> , R<4> and R<5> denote hydrocarbon bases of carbons 1 to 10 which may each have a hydroxyl base, an amino base, a nitro base, a cyano base, a carboxyl base, an ether base, or an aldehyde base. Any or all of R<1> , R<2> , R<3> , R<4> and R<5> are coupled to each other to form a ring). As a result, it is possible to prevent a reduction of sealing performance of a seal body. |
