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:
Nov. 29, 2022
Filed:
May. 06, 2020
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
John F. Christensen, Palo Alto, CA (US);
Christina M. Johnston, Mountain View, CA (US);
Yelena Gorlin, Menlo Park, CA (US);
Sondra L. Hellstrom, Palo Alto, CA (US);
Michael Metzger, Sunnyvale, CA (US);
Assignee:
ROBERT BOSCH GMBH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/1051 (2016.01); H01M 8/1067 (2016.01); H01M 8/1039 (2016.01); H01M 8/103 (2016.01); H01M 8/1023 (2016.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H01M 8/1051 (2013.01); H01M 8/103 (2013.01); H01M 8/1023 (2013.01); H01M 8/1039 (2013.01); H01M 8/1067 (2013.01); H01M 2008/1095 (2013.01);
Abstract
Described herein is a polymer-electrolyte-membrane fuel cell (PEMFC) that incorporates a shunt into the membrane separator that becomes electronically conductive around a well-defined anodic onset potential, thereby preventing excessive anodic potentials at the positive electrode that would otherwise drive deleterious parasitic reactions such as catalyst dissolution or catalyst and carbon oxidation.