Title:
ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2023/176392
Kind Code:
A1
Abstract:
Provided is an electrolytic capacitor in which the deformation of a sealing body is suppressed and the evaporation of an electrolytic solution is suppressed even in a high-temperature environment. The electrolytic capacitor comprises: a capacitor element having a positive electrode foil, a negative electrode foil, an electrolytic solution, and a solid electrolyte layer; a case containing the capacitor element; and a sealing body for sealing the case. The sealing body contains a butyl rubber. The electrolytic solution contains a solvent and an antioxidant. The solvent includes glycerin, diglycerin, or both. The antioxidant is water-soluble and has a benzene ring and two or more hydroxy groups in the molecular structure thereof.
Inventors:
SATO KENTA (JP)
NAKAMURA IPPEI (JP)
NAKAMURA IPPEI (JP)
Application Number:
PCT/JP2023/006980
Publication Date:
September 21, 2023
Filing Date:
February 27, 2023
Export Citation:
Assignee:
NIPPON CHEMICON (JP)
International Classes:
H01G9/028; H01G9/035; H01G9/10; H01G9/145; H01G9/15
Domestic Patent References:
| WO2021095815A1 | 2021-05-20 |
Foreign References:
| JP2021121022A | 2021-08-19 | |||
| JPH09106932A | 1997-04-22 |
Attorney, Agent or Firm:
KIUCHI Mitsuharu et al. (JP)
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