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:
Oct. 20, 2020
Filed:
Jun. 26, 2018
GM Global Technology Operations Llc, Detroit, MI (US);
Liang Xi, Northville, MI (US);
Jeffrey A. Rock, Rochester Hills, MI (US);
Xi Yang, Bloomfield Hills, MI (US);
Siguang Xu, Rochester Hill, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
Methods for designing one or a pair of half plates of a fuel cell include providing a first half plate defining a first half plate metal bead, wherein the first half plate metal bead protrudes from the first half plate forming a convex side, providing a second half plate defining a second plate metal bead, wherein the second half plate metal bead protrudes from the second half plate forming a convex side, determining a pressure profile between the convex sides of the first half plate metal bead and the second half plate metal bead in a compressed state, and adjusting a height of the first half plate metal bead and/or the second half plate metal bead in one or more locations to increase the uniformity of the pressure profile. Increasing the uniformity of the pressure profile can include reducing a range of the plurality of pressure measurements.