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Title:
ELECTRODE FOIL FOR ELECTROLYTIC CAPACITOR, ELECTROLYTIC CAPACITOR, AND METHOD FOR MANUFACTURING ELECTRODE FOIL FOR ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2023/008558
Kind Code:
A1
Abstract:
This electrode foil for electrolytic capacitors contains a valve action metal and is provided with a core part and a porous part continuous with the core part. The porous part has a thickness of Τ μm and has an inner layer region on the core part side and a surface layer region on the side opposite from the core part. The surface layer region is a region in which the distance from the outer surface of the porous part is T/4 or less, and the inner layer region is a region in which the distance from the boundary of the porous part with the core part is T/4 or less. The average diameter D1 nm of pores in the surface layer region is smaller than the average diameter D2 nm of pores in the inner layer region.

Inventors:
KADOKAWA TOSHIFUMI
YOSHIMURA MITSUHISA
TSUBAKI MASAMI
MATSUSHITA SHUMPEI
Application Number:
PCT/JP2022/029292
Publication Date:
February 02, 2023
Filing Date:
July 29, 2022
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01G9/00; H01G9/048; H01G9/055; H01G9/07; H01G9/145; H01G9/15
Domestic Patent References:
WO2020174751A12020-09-03
Foreign References:
JP2003109865A2003-04-11
JPH06204094A1994-07-22
JPH10189398A1998-07-21
JPH1126320A1999-01-29
Attorney, Agent or Firm:
KAWASAKI & PARTNERS (JP)
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