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. 12, 2023
Filed:
Feb. 03, 2022
Applicant:
Toppan Inc., Tokyo, JP;
Inventor:
Hiroyuki Morioka, Tokyo, JP;
Assignee:
TOPPAN INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/1004 (2016.01); H01M 4/88 (2006.01); H01M 4/90 (2006.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H01M 8/1004 (2013.01); H01M 4/881 (2013.01); H01M 4/9016 (2013.01); H01M 2008/1095 (2013.01);
Abstract
A fuel cell membrane electrode assembly includes a polymer electrolyte membrane and a pair of electrocatalyst layers arranged to have the polymer electrolyte membrane therebetween, at least one of the pair of electrocatalyst layers includes particles supporting a catalyst which is composed of a noble metal component, a polymer electrolyte, and a fibrous oxide-based catalytic material, and the fibrous oxide-based catalytic material includes at least one transition metal element selected from a group consisting of Ta, Nb, Ti, and Zr.