Title:
SOLID ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2022/114047
Kind Code:
A1
Abstract:
This solid electrolytic capacitor comprises: at least one capacitor element 100 that comprises a positive electrode part 111 and a negative electrode part 113; and an outer package 30 that covers the capacitor element 100 and a lead terminal 20 which comprises a positive electrode lead terminal 21 and a negative electrode lead terminal 22. The positive electrode lead terminal 21 and the negative electrode lead terminal 22 respectively comprise a buried part 21a and a buried part 22a, which are buried in the outer package 30. The buried part 21a has a contact surface p that is in contact with the outer package 30; and the buried part 22a has a contact surface n that is in contact with the outer package 30. At least one contact surface that is selected from among the contact surface p and the contact surface n has a rough surface that has an expanded area ratio of the interface of 0.4 or more. Consequently, the present invention provides a solid electrolytic capacitor which is able to be suppressed particularly in deterioration due to ingress of oxygen or the like.
Inventors:
OGASAWARA KATSUHIRO
TANAKA ATSUSHI
TANAKA ATSUSHI
Application Number:
PCT/JP2021/043139
Publication Date:
June 02, 2022
Filing Date:
November 25, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01G9/012; H01G9/10; H01G9/15
Foreign References:
| JP2000049056A | 2000-02-18 | |||
| JP2000340463A | 2000-12-08 | |||
| JPH02239608A | 1990-09-21 | |||
| JP2020053588A | 2020-04-02 | |||
| JPH11283870A | 1999-10-15 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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