Nichicon Corporation

Nippon Shokubai Co., Ltd.

Takayuki Ueda

Keiichiro Mizuta

Hironobu Hashimoto

Taisuke Kasahara

Hideyuki Tahara

Daisuke Kubo

Satoshi Tani

Seitaro Onoue

An ionic compound is provided that has an anion represented by a: formula (1) and a cation represented by a formula (2): where X is an element selected from the group consisting of B, C, N, O, Al, Si, P, S, As, and Se, Mand Mare identical or different, and represent linking groups, and, when multiple Ms or multiple Ms are present, they may be identical or different, Q represents a monovalent element or organic group, a represents an integer of 1 or more, and b, c, d, and a each represent an integer of 0 or more; and R-LH(2) where L is an element selected from the group consisting of C, Si, N, P, S, and 0, R represents a monovalent element, functional group, or organic group, and s represents an integer of 2 to 4.

Ionic compound

Provide is an aluminum electrolytic capacitor exhibiting low specific resistance and low impedance property and realizing high reliability. An electrolytic capacitor has a structure in which: a capacitor element which is formed by rolling an anode foil and a cathode foil each connected with an electrode extraction lead through a separator and which is impregnated with a drive electrolytic solution is included in a cylindrical outer case having a closed-end; and an open end of the outer case is sealed with an elastic sealing body, in which: the drive electrolytic solution contains a tricyanomethide salt represented by the below-indicated chemical formula (1); and the drive electrolytic solution has a water content of 3.0 wt % or less: where, R represents a cation pairing with a tricyanomethide ion in formation of a tricyanomethide salt.

Electrolytic capacitor

Growing community of inventors

Kyoto, Japan

Takayuki Ueda