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. 03, 2019
Filed:
Sep. 25, 2017
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Liang Xi, Northville, MI (US);
Xi Yang, Bloomfield Hills, MI (US);
Siguang Xu, Rochester Hills, MI (US);
Glenn W Skala, Churchville, NY (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/0276 (2016.01); H01M 8/1018 (2016.01); H01M 8/2418 (2016.01); H01M 8/0284 (2016.01); H01M 8/0297 (2016.01); H01M 8/0273 (2016.01);
U.S. Cl.
CPC ...
H01M 8/0276 (2013.01); H01M 8/0273 (2013.01); H01M 8/0284 (2013.01); H01M 8/0297 (2013.01); H01M 8/1018 (2013.01); H01M 8/2418 (2016.02); H01M 2008/1095 (2013.01);
Abstract
The present disclosure provides a fuel cell stack having a plurality of bipolar plates aligned between a pair of end plates. Each of the bipolar plates further includes a first bead and a second bead. The first bead defines a first bead height, and the second bead defines a second bead height wherein the second bead height is less than the first bead height.