Rubycon Corporation

Kazuyasu Watanabe

Akihiko Komatsu

Yoshishige Sakurai

Hiroki Tsutsui

A solid electrolyte capacitor includes an anode foil on a surface of which an oxide film is formed, a cathode foil, and a separator. A gap between the anode foil and the cathode foil is filled with a solid electrolyte which contains a conductive fine particles containing a conductive polymer compound and a hydrophilic polymer compound. The hydrophilic polymer compound has a structure expressed by a following chemical formula (I) and a structure expressed by a following chemical formula (II).&#x2014;(R&#x2014;O)&#x2014;&#x2003;&#x2003;(I)&#x2014;(R&#x2014;O)&#x2014;&#x2003;&#x2003;(II)In the formula (I) and the formula (II), Rand Rare groups selected from the set consisting of a substituted or unsubstituted alkylene, a substituted or unsubstituted alkenylene, and a substituted or unsubstituted phenylene, and represent mutually different groups.

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Nagano, Japan

Kazuyasu Watanabe