ELECTRIC DOUBLE-LAYER CAPACITOR

摘要

An electric double-layer capacitor comprising a pair of polarized electrodes, a separator interposed between these polarized electrodes, and an electrolyte, wherein polarized electrodes used mainly contain active carbon having the peak of the pore diameter distribution of a micro-hole determined by an MP method within 4.0 x 10<-10> to 8.0 x 10<-10> m, and the electrolyte used contains an ionic liquid as an electrolytic salt, whereby providing an electric double-layer capacitor being excellent in low-temperature characteristics and high in electrostatic capacity