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.:
Date of Patent:
Jul. 02, 2024
Filed:
Jan. 16, 2019
Nippon Light Metal Company, Ltd., Tokyo, JP;
Toyo Aluminium K.k., Osaka, JP;
Yuta Shimizu, Shizuoka, JP;
Masahiko Katano, Shizuoka, JP;
Toshifumi Taira, Osaka, JP;
Kazuya Fujimoto, Osaka, JP;
Shinya Sone, Osaka, JP;
NIPPON LIGHT METAL COMPANY, LTD., Tokyo, JP;
TOYO ALUMINIUM K.K., Tokyo, JP;
Abstract
In production of an electrode for an aluminum electrolytic capacitor, a hydrated film is formed onto an aluminum electrode including a porous layer by immersing the aluminum electrode into a first hydration treatment liquid having a temperature of 80° C. or more in a first hydration treatment step (ST) and thereafter the aluminum electrode is heated in an atmosphere having a temperature of 150° C. or more and 350° C. or less in a dehydration step (ST). Subsequently, a hydrated film is formed onto the aluminum electrode by immersing the aluminum electrode into a second hydration treatment liquid having a temperature of 80° C. or more in a second hydration treatment step (ST) and thereafter chemical formation of the aluminum electrode is performed at 400 V or more and further 600 V or more in a chemical formation step.