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:
Aug. 04, 2020
Filed:
Feb. 28, 2017
Applicant:
Nissan North America, Inc., Franklin, TN (US);
Inventor:
Rameshwar Yadav, Farmington, MI (US);
Assignee:
Nissan North America, Inc., Franklin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/88 (2006.01); H01M 4/92 (2006.01); H01M 8/103 (2016.01); H01M 8/1023 (2016.01); H01M 8/1039 (2016.01); H01M 8/1004 (2016.01); B32B 27/14 (2006.01); B32B 27/28 (2006.01); B32B 27/32 (2006.01); B32B 37/00 (2006.01); B32B 5/26 (2006.01); B32B 9/00 (2006.01); B32B 9/04 (2006.01); B32B 5/16 (2006.01); H01M 8/1018 (2016.01); B32B 38/00 (2006.01);
U.S. Cl.
CPC ...
H01M 4/8878 (2013.01); B32B 5/16 (2013.01); B32B 9/007 (2013.01); B32B 9/048 (2013.01); B32B 27/14 (2013.01); B32B 27/281 (2013.01); B32B 27/322 (2013.01); B32B 37/025 (2013.01); H01M 4/881 (2013.01); H01M 4/8807 (2013.01); H01M 4/8814 (2013.01); H01M 4/8828 (2013.01); H01M 4/926 (2013.01); H01M 8/1004 (2013.01); H01M 8/1023 (2013.01); H01M 8/1039 (2013.01); B32B 2038/0028 (2013.01); B32B 2264/105 (2013.01); B32B 2264/108 (2013.01); B32B 2264/12 (2013.01); B32B 2305/026 (2013.01); B32B 2311/06 (2013.01); B32B 2313/04 (2013.01); B32B 2333/00 (2013.01); B32B 2379/08 (2013.01); B32B 2457/18 (2013.01); H01M 2008/1095 (2013.01); H01M 2300/0082 (2013.01);
Abstract
A membrane electrode assembly is provided that includes a polymer electrolyte membrane and a catalyst layer provided on a surface of the polymer electrolyte membrane. The catalyst layer comprises catalyst particles and an ionomer film surrounding each of the catalyst particles. The ionomer film has an oxygen permeability of approximately 6.0×10mol/cm/s to 15.0×10mol/cm/s at 80° C. and a relative humidity of approximately 30% to 100%.