Title:
SEALING BODY AND ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2023/176268
Kind Code:
A1
Abstract:
The present invention provides: a sealing body which is suppressed in thermal oxidation degradation; and an electrolytic capacitor which is provided with this sealing body. A sealing body according to the present invention seals an opening of a case in which a capacitor element, which is impregnated with an electrolyte solution and wherein a positive electrode foil that is provided with a dielectric oxide coating film and a negative electrode foil face each other, is contained. This sealing body is provided with an elastomer member that contains an elastomer such as a butyl rubber. The elastomer has an initial crosslinking density of 1.8 × 10-3 mol/g or more; and the content of the elastomer relative to the entire elastomer member is 30 wt% or less.
Inventors:
MAEDA TETSUO (JP)
TAKAHASHI HIDEAKI (JP)
TAKAHASHI HIDEAKI (JP)
Application Number:
PCT/JP2023/005296
Publication Date:
September 21, 2023
Filing Date:
February 15, 2023
Export Citation:
Assignee:
NIPPON CHEMICON (JP)
International Classes:
H01G9/10; H01G2/10
Domestic Patent References:
| WO2020149384A1 | 2020-07-23 | |||
| WO2019035431A1 | 2019-02-21 |
Foreign References:
| JPS5980925A | 1984-05-10 | |||
| JP2020088329A | 2020-06-04 | |||
| JP2010232449A | 2010-10-14 |
Attorney, Agent or Firm:
KIUCHI Mitsuharu et al. (JP)
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