Title:
CATHODE FOIL FOR ELECTROLYTIC CAPACITORS, ELECTROLYTIC CAPACITOR, AND METHODS RESPECTIVELY FOR PRODUCING THOSE
Document Type and Number:
WIPO Patent Application WO/2021/107063
Kind Code:
A1
Abstract:
A cathode foil for electrolytic capacitors comprises a metal porous part, a metal core part which is contiguous with the metal porous part, a first main surface on which pores of the metal porous part open, and a coating film which covers the metal porous part. The coating film is formed to a depth of 10% or more of the thickness of the metal porous part as observed in the direction of the thickness of the metal porous part. The coating film may contain a first layer which contains a first element and is electrically conductive and/or a second layer which is an oxide layer containing a second element. According to this configuration, a cathode foil for electrolytic capacitors can be provided, which can exhibit excellent properties.
Inventors:
YOSHIMURA MITSUHISA
OGAWA MIWA
SASADA NATSUYO
AOYAMA TATSUJI
OGAWA MIWA
SASADA NATSUYO
AOYAMA TATSUJI
Application Number:
PCT/JP2020/044131
Publication Date:
June 03, 2021
Filing Date:
November 27, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01G9/00; H01G9/042; H01G9/055
Domestic Patent References:
| WO2017154461A1 | 2017-09-14 |
Foreign References:
| JP2019179884A | 2019-10-17 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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