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:
Dec. 04, 2001
Filed:
Apr. 23, 1999
Applicant:
Inventors:
Takashi Itoh, Ichikawa, JP;
Junji Sato, Urayasu, JP;
Assignee:
N. E. Chemcat Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/86 ; H01M 4/90 ; H01M 4/96 ; H01M 8/10 ;
U.S. Cl.
CPC ...
H01M 4/86 ; H01M 4/90 ; H01M 4/96 ; H01M 8/10 ;
Abstract
There are provided an electrocatalyst having an excellent poisoning resistance to carbon monoxide for use in solid polymer electrolyte fuel cells, an electrode, a membrane-electrode assembly, and a solid polymer electrolyte fuel cell, using said electrocatalyst. The electrocatalyst is comprised of a cubic platinum-ruthenium solid solution alloy and a hexagonal ruthenium supported together on a conductive carbon carrier.