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:
Feb. 25, 2020
Filed:
Sep. 10, 2015
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Inventors:
Wu Mei, Yokohama, JP;
Shigeru Matake, Yokohama, JP;
Taishi Fukazawa, Meguro, JP;
Yoshihiro Akasaka, Kawasaki, JP;
Assignee:
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/86 (2006.01); H01M 8/10 (2016.01); H01M 4/88 (2006.01); H01M 8/1004 (2016.01);
U.S. Cl.
CPC ...
H01M 4/8621 (2013.01); H01M 4/8657 (2013.01); H01M 4/8825 (2013.01); H01M 8/1004 (2013.01);
Abstract
Embodiments of the present disclosure aim to provide a catalyst layer ensuring a high cell voltage and having both excellent robustness and sufficient endurance, and also to provide a process for producing the layer, a membrane electrode assembly and an electrochemical cell. The catalyst layer comprises two or more noble metal-containing layers, and a porous ceramic layer placed between the noble metal-containing layers. Further, in the catalyst layer, voids exist between the porous ceramic layer and the noble metal-containing layers.