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:
Sep. 19, 2023
Filed:
Sep. 27, 2021
Applicant:
Johnson Matthey Hydrogen Technologies Limited, London, GB;
Inventors:
Assignee:
Johnson Matthey Hydrogen Technologies Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/92 (2006.01); H01M 4/96 (2006.01); H01M 4/88 (2006.01); C25B 9/23 (2021.01); C25B 11/091 (2021.01); C25B 11/095 (2021.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H01M 4/928 (2013.01); C25B 9/23 (2021.01); C25B 11/091 (2021.01); C25B 11/095 (2021.01); H01M 4/8814 (2013.01); H01M 4/8828 (2013.01); H01M 4/96 (2013.01); H01M 2008/1095 (2013.01);
Abstract
A catalyst layer comprising: (i) a platinum-containing electrocatalyst; (ii) oxygen evolution reaction electrocatalyst; (iii) one or more carbonaceous materials selected from the group consisting of graphite, nanofibres, nanotubes, nanographene platelets and low surface area, heat-treated carbon blacks wherein the one or more carbonaceous materials do not support the platinum-containing electrocatalyst; and (iv) proton-conducting polymer and its use in an electrochemical device is disclosed.