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:
Jun. 04, 2019
Filed:
Apr. 23, 2013
Applicant:
Hyundai Motor Company, Seoul, KR;
Inventors:
Hyun Suk Choo, Seoul, KR;
Dae Keun Chun, Seoul, KR;
Hwan Soo Shin, Gyeonggi-do, KR;
Sung Keun Lee, Gyeonggi-do, KR;
Jae Hyuk Lee, Seoul, KR;
Assignee:
Hyundai Motor Company, Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2016.01); H01M 8/02 (2016.01); H01M 8/04223 (2016.01); H01M 8/04303 (2016.01); H01M 4/92 (2006.01); H01M 8/1018 (2016.01);
U.S. Cl.
CPC ...
H01M 8/04238 (2013.01); H01M 8/04223 (2013.01); H01M 8/04303 (2016.02); H01M 4/92 (2013.01); H01M 2008/1095 (2013.01); H01M 2250/20 (2013.01); Y02T 90/32 (2013.01);
Abstract
A method for recovering performance of a degraded polymer electrolyte fuel cell stack through electrode reversal. In detail, oxide films formed on the surface of platinum of a cathode is removed through an electrode reversal process that creates a potential difference between an anode and the cathode by supplying air to the anode instead of hydrogen and supplying a fuel to the cathode instead of air, thus rapidly recovering the performance of a degraded polymer electrolyte fuel cell stack.