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1. (WO2017170169) ELECTROLYTE SOLUTION FOR ELECTROLYTIC CAPACITORS, AND ELECTROLYTIC CAPACITOR

Pub. No.:    WO/2017/170169    International Application No.:    PCT/JP2017/011829
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Fri Mar 24 00:59:59 CET 2017
IPC: H01G 9/035
Applicants: SANYO CHEMICAL INDUSTRIES, LTD.
三洋化成工業株式会社
Inventors: SHIBA, Takahiro
芝 隆宏
TANABE, Fumiyuki
田邊 史行
AKAZAWA, Yoshihiko
赤澤 慶彦
MUKAI, Takao
向井 孝夫
KIMURA, Hideki
木村 秀基
Title: ELECTROLYTE SOLUTION FOR ELECTROLYTIC CAPACITORS, AND ELECTROLYTIC CAPACITOR
Abstract:
The purpose of the present invention is to provide: an electrolyte solution for electrolytic capacitors, which has a high sparking voltage and good heat resistance, while being not susceptible to solidification even at low temperatures, and which is thus able to be used even in cold climates; and an electrolytic capacitor. An electrolyte solution for electrolytic capacitors according to the present invention contains a solvent (C) and an electrolyte, and is configured such that: the electrolyte is composed of a salt of a dibasic acid (A) and a base (B); and the dibasic acid (A) contains two or more dibasic acids. With respect to the two or more dibasic acids, a mixture (E) of two or more acid anhydrides corresponding to a mixture of dibasic acids containing the above-described two or more dibasic acids at a molar ratio in the dibasic acid (A) is in a liquid state at 50°C.