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. 11, 2018
Filed:
Sep. 22, 2015
GM Global Technology Operations Llc, Detroit, MI (US);
Siguang Xu, Rochester Hills, MI (US);
Ivan D. Chapman, Rochester, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A bipolar plate assembly and fuel cell stack with reduced leakage and a method of assembling a bipolar plate and fuel cell stack. The bipolar plates include—in addition to reactant channels and coolant channels that are fluidly coupled to inlet and outlet flowpaths, integrally-formed seals to help reduce leakage by maintaining fluid isolation of the reactants and coolant as they flow through their respective channels and flowpaths. The size and shape of the seals promotes secure plate-to-plate contact, even during plate side-to-side misalignment that can occur when arranging the various plates into the stack.