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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10614961 B1

PDFFull Text
Date of Patent:
Apr. 07, 2020

Filed:

Sep. 20, 2016

Method for producing electrode for aluminum electrolytic capacitor

Applicant:

Nippon Light Metal Company, Ltd., Tokyo, JP;

Inventors:

Yuta Shimizu, Shizuoka, JP;

Yuya Yoshida, Shizuoka, JP;

Masahiko Katano, Shizuoka, JP;

Shinya Sone, Osaka, JP;

Masashi Mehata, Osaka, JP;

Toshifumi Taira, Osaka, JP;

Assignee:

NIPPON LIGHT METAL COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:

Seahvosh Nikmanesh

Int. Cl.
CPC ...
H01G 9/00 (2006.01); H01G 9/045 (2006.01); H01G 9/052 (2006.01); H01G 9/055 (2006.01); C23F 1/20 (2006.01); H01G 9/04 (2006.01);
U.S. Cl.
CPC ...
H01G 9/045 (2013.01); H01G 9/0029 (2013.01); H01G 9/055 (2013.01); C23F 1/20 (2013.01); H01G 9/0032 (2013.01); H01G 9/0525 (2013.01); H01G 2009/0408 (2013.01); H01G 2009/0416 (2013.01);
Abstract

An aluminum electrode in which a porous layer made of a sintered layer of aluminum powder having an average particle diameter of 1 μm to 10 μm is laminated in a thickness of 150 μm to 3000 μm on a surface of an aluminum core material is produced by chemical formation to produce an anode for an electrolytic capacitor. In this process, an organic acid immersion step of immersing the aluminum electrode in an organic acid aqueous solution containing dodecanoic acid, benzoic acid, propanedioic acid, butanedioic acid, (E)-2-butenedioic acid, 2-hydroxypropane-1,2,3-tricarboxylic acid, (E)-1-propene-1,2,3-tricarboxylic acid, or the like is carried out after a pure water boiling step and before a chemical formation step. In the chemical formation step, a phosphoric acid immersion step of immersing the aluminum electrode in an aqueous solution containing phosphate ions is carried out one or more times in the course of raising a film withstand voltage to a chemical formation voltage.

Find Patent Forward Citations

Shimizu, Yuta. (2020). Method for producing electrode for aluminum electrolytic capacitor (U.S. Patent No. 10614961). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10614961

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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