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. 24, 2019
Filed:
Jun. 09, 2015
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Gayatri Vyas Dadheech, Bloomfield Hills, MI (US);
Gerald W. Fly, Geneseo, NY (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/86 (2006.01); H01M 8/0258 (2016.01); H01M 8/0265 (2016.01); H01M 8/021 (2016.01); H01M 8/0213 (2016.01); H01M 8/0228 (2016.01); H01M 8/0267 (2016.01); H01M 8/0297 (2016.01); H01M 8/0208 (2016.01); H01M 4/90 (2006.01); H01M 4/96 (2006.01); H01M 8/0271 (2016.01); H01M 8/04082 (2016.01); H01M 8/1004 (2016.01); H01M 8/1018 (2016.01); C25D 1/04 (2006.01); C25D 3/56 (2006.01);
U.S. Cl.
CPC ...
H01M 4/86 (2013.01); C25D 1/04 (2013.01); H01M 4/9041 (2013.01); H01M 4/96 (2013.01); H01M 8/021 (2013.01); H01M 8/0208 (2013.01); H01M 8/0213 (2013.01); H01M 8/0228 (2013.01); H01M 8/0258 (2013.01); H01M 8/0265 (2013.01); H01M 8/0267 (2013.01); H01M 8/0271 (2013.01); H01M 8/0297 (2013.01); H01M 8/04201 (2013.01); H01M 8/1004 (2013.01); C25D 3/562 (2013.01); H01M 2004/8694 (2013.01); H01M 2008/1095 (2013.01); H01M 2250/20 (2013.01);
Abstract
A bipolar plate assembly for a fuel cell includes a cathode plate disposed adjacent an anode plate. The cathode and anode plates are formed having a first thickness of a low contact resistance, high corrosion resistance material by a deposition process. The first and second unipolar plates are formed on a removable substrate, and a first perimeter of the first unipolar plate is welded to a second perimeter of the second unipolar plate to form a hermetically sealed coolant flow path.