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. 10, 2019
Filed:
Oct. 21, 2016
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Xi Yang, Bloomfield Hills, MI (US);
Siguang Xu, Rochester Hills, MI (US);
Liang Xi, Northville, MN (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/0265 (2016.01); H01M 8/026 (2016.01); H01M 8/04082 (2016.01); H01M 8/0247 (2016.01); H01M 8/0258 (2016.01);
U.S. Cl.
CPC ...
H01M 8/0265 (2013.01); H01M 8/026 (2013.01); H01M 8/0247 (2013.01); H01M 8/0258 (2013.01); H01M 8/04201 (2013.01);
Abstract
A number of variations may include at least one bipolar plate which may include at least one bead, the bead may include a plurality of crest portions and a plurality of trough portions having at least one tangent portion disposed between adjacent crest portions and trough portions; the bipolar plate further may include at least one tunnel defining at least one through hole within the at least one tangent portion.