PURPOSE: To make it possible to obtain the title capacitor having low internal resistance and a low degree of leakage current by a method wherein a film-like substance, consisting of an ion-exchange material, is used for a separator.
CONSTITUTION: In the capacitor in which an electric double layer, formed on the interface of polarized electrodes 1 and 2 and an electrolyte, is used, the film-like substance consisting of an ion-exchange material is used for a separator 3. An ordinary ion-exchange material can be used as the ion-exchange material. The ion-exchange capacity of the ion-exchange material of 0.5-2.0mm equivalent weight/g of dried resin is considered suitable. As a result, the internal resistance of the capacitor is reduced, and the leakage current passing through the separator can be made small.
HIRATSUKA KAZUYA
SANADA YASUHIRO
ARIGA HIROSHI
ELNA CO LTD
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