Title:
ELECTROLYTIC SOLUTION FOR ELECTROLYTIC CAPACITOR, AND ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2020/027124
Kind Code:
A1
Abstract:
Provided are: an electrolytic solution that is for an electrolytic capacitor, that improves withstand voltage, that inhibits property variation of the electrolytic capacitor by enabling the effect of the improved withstand voltage to be sustained for a long duration and by inhibiting dissolution of a dielectric oxide film, and that has fine lifespan characteristics; and an electrolytic capacitor. The electrolytic solution comprises: a solute; inorganic oxide colloidal particles that are surface-modified with an organic substance; and a silane coupling agent or a silylation agent. The electrolytic capacitor is formed by impregnating a capacitor element with said electrolytic solution, has the silane coupling agent or the silylation agent adsorbed to the surface of an electrode foil, and has stably dispersed therein the inorganic oxide colloidal particles that are surface-modified with an organic substance, since the silane coupling agent or the silylation agent is interposed between the colloidal particles.
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Inventors:
KURODA KOICHI (JP)
Application Number:
PCT/JP2019/029822
Publication Date:
February 06, 2020
Filing Date:
July 30, 2019
Export Citation:
Assignee:
NIPPON CHEMICON (JP)
International Classes:
H01G9/035; H01G9/145
Foreign References:
| JP2003203827A | 2003-07-18 | |||
| JPH03257811A | 1991-11-18 |
Attorney, Agent or Firm:
KIUCHI Mitsuharu et al. (JP)
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