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 8383287 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 26, 2013

Filed:

Jul. 09, 2008
Applicants:

Yukiyoshi Ueno, Gotenba, JP;

Hirofumi Iisaka, Toyota, JP;

Inventors:

Yukiyoshi Ueno, Gotenba, JP;

Hirofumi Iisaka, Toyota, JP;

Assignee:

Toyota Jidosha Kabushiki Kaisha, Toyota-Shi, Aichi-Ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/02 (2006.01); H01M 4/36 (2006.01); H01M 4/90 (2006.01); H01M 4/92 (2006.01); B01J 21/18 (2006.01); B01J 23/40 (2006.01); B01J 23/74 (2006.01);
U.S. Cl.
CPC ...
Abstract

This invention provides a fuel cell electrode catalyst in which at least one transition metal element and at least one chalcogen element are supported on a conductive support, wherein the fuel cell electrode catalyst comprises a core portion comprising a transition metal crystal and a shell portion comprising surface atoms of the transition metal crystal particle and chalcogen elements coordinating to the surface atoms, and the outer circumference of the core portion is being partially covered with the shell portion. The fuel cell electrode catalyst has a high level of oxygen reduction performance, high activity as a fuel cell catalyst and comprises a transition metal element and a chalcogen element.


Find Patent Forward Citations

Ueno, Yukiyoshi. (2013). Fuel cell electrode catalyst and polymer electrolyte fuel cell using the same (U.S. Patent No. 8383287). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8383287

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