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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 10177395 B1

PDFFull Text
Date of Patent:
Jan. 08, 2019

Filed:

Mar. 30, 2016

Electrode catalyst, composition for forming gas diffusion electrode, gas diffusion electrode, membrane-electrode assembly, fuel cell stack, method for producing electrode catalyst, and composite particle

Applicant:

N.e. Chemcat Corporation, Tokyo, JP;

Inventors:

Kiyotaka Nagamori, Bando, JP;

Tomoteru Mizusaki, Bando, JP;

Yoko Nakamura, Bando, JP;

Hiroshi Igarashi, Bando, JP;

Yasuhiro Seki, Bando, JP;

Assignee:

N.E. CHEMCAT CORPORATION, Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Wojciech Haske

Int. Cl.
CPC ...
H01M 4/92 (2006.01); H01M 8/1004 (2016.01); B01J 23/44 (2006.01); B01J 35/08 (2006.01); B01J 37/02 (2006.01); H01M 4/86 (2006.01); H01M 4/88 (2006.01); H01M 8/1018 (2016.01);
U.S. Cl.
CPC ...
H01M 8/1004 (2013.01); B01J 23/44 (2013.01); B01J 35/08 (2013.01); B01J 37/02 (2013.01); H01M 4/86 (2013.01); H01M 4/8657 (2013.01); H01M 4/92 (2013.01); H01M 4/921 (2013.01); H01M 4/926 (2013.01); H01M 4/8807 (2013.01); H01M 2008/1095 (2013.01);
Abstract

To provide electrode catalyst (core-shell catalyst) having an excellent catalyst activity which contributes to lower the cost of the PEFC. The electrode catalyst has catalyst particles supported an a support. The catalyst particle has a core part containing simple Pd and a shell part containing simple Pt. A percentage R(atom %) of the carbon of the support and a percentage R(atom %) of the simple Pd in an analytical region near a surface measured by X-ray photoelectron spectroscopy (XPS) satisfy the conditions of the following equation (1): 2.15≤[100×R/(R+R)].

Find Patent Forward Citations

Nagamori, Kiyotaka. (2019). Electrode catalyst, composition for forming gas diffusion electrode, gas diffusion electrode, membrane-electrode assembly, fuel cell stack, method for producing electrode catalyst, and composite particle (U.S. Patent No. 10177395). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10177395

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

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