Title:
ELECTRODE MATERIAL, CATHODE FOIL FOR ELECTROLYTIC CAPACITOR, AND ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2024/019112
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an electrode material and the like which can be used in a cathode foil for an electrolytic capacitor and the like having all of the advantages in which: the adhesiveness to a solid electrolyte is satisfactory and the contact resistance on a boundary surface is low; a layer (geometric structure and surface modification) for holding a solid electrolyte and an electrolytic solution is provided; the deterioration resistance with respect to a solid electrolyte, an electrolytic solution, and moisture is excellent; the cathode foil does not have a capacitive component or has a low content of a capacitive component, and acts as a low-resistance conductor (a synthetic capacitance is not exhibited or is low); thinning can be achieved; the cost is low; and it is difficult for winding deviation to occur. Provided is an electrode material comprising: an oxide layer provided on a smooth base material; and an inorganic conductive layer provided on the oxide layer, wherein the inorganic conductive layer has a first conductive layer containing a metal and/or a metal compound and a second conductive layer containing carbon, the first conductive layer has an uneven portion on the surface layer side thereof, and the second conductive layer is positioned at the outermost layer of the inorganic conductive layer.
Inventors:
SHIMOYAMA NAMI (JP)
YOSHIOKA KOJI (JP)
SHIRATORI TSUBASA (JP)
OTSUKA MASAYA (JP)
YOSHIOKA KOJI (JP)
SHIRATORI TSUBASA (JP)
OTSUKA MASAYA (JP)
Application Number:
PCT/JP2023/026574
Publication Date:
January 25, 2024
Filing Date:
July 20, 2023
Export Citation:
Assignee:
JAPAN CAPACITOR IND CO LTD (JP)
International Classes:
H01G9/042; H01G9/048; H01G9/055; H01G9/145; H01G9/15
Domestic Patent References:
| WO2012115050A1 | 2012-08-30 |
Foreign References:
| JP2012174865A | 2012-09-10 | |||
| JP2014022707A | 2014-02-03 | |||
| JP2019179884A | 2019-10-17 |
Attorney, Agent or Firm:
TANAKA Shinichiro et al. (JP)
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