Nippon Chemi-con Corporation

Takato Ito

Akihiro Shimada

Kimio Uchiyama

Katsuaki Fukuda

An organic semiconductor electrolyte capacitor and a process for producing such a capacitor having improved loss and impedance characteristics and which can be produced using a simple apparatus and with reduced waste of expensive materials. A dielectric oxide film is formed on the surface of a metal anode, and a solid-electrolyte layer is formed on the dielectric oxide film. The electrolyte layer is made by melting and solidifying a mixture of an isopropylisoquinolinium tetracyanoquinodimethane complex salt and a lactone compound.

Organic semiconductor electrolyte capacitor and process for producing

An electrolyte for an electrolytic capacitor which comprises using as a main solute(s) at least one of a long chain dibasic acid having 12 to 22 carbon atoms and containing an alkyl group at the side chain thereof or a salt thereof and dissolving said solute(s) in a solvent mainly composed of ethylene glycol, and adding and dissolving at least one compound selected from the group consisting of a polycarboxylic acid, an inorganic acid consisting of phosphoric acid and sulfuric acid, 8-oxyquinoline and ethylenediamine tetraacetic acid (or a salt thereof) to and in the resulting solution.

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Tokyo, Japan

Takato Ito