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. 17, 2024
Filed:
Nov. 25, 2019
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Shicheng Xu, Stanford, CA (US);
Friedrich B. Prinz, Stanford, CA (US);
Thomas Schladt, Wolfsburg, DE;
Tanja Graf, Wolfsburg, DE;
Jonathan Edward Mueller, Wolfsburg, DE;
Sebastian Kirsch, Wolfsburg, DE;
Gerold Huebner, Wolfsburg, DE;
Vedran Glavas, Wolfsburg, DE;
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Abstract
A manufacturing process includes: depositing a catalyst support on a gas diffusion layer to form a catalyst support-coated gas diffusion layer; depositing a catalyst on the catalyst support-coated gas diffusion layer to form a catalyst-coated gas diffusion layer; and depositing an ionomer on the catalyst-coated gas diffusion layer to form an ionomer-coated gas diffusion layer. A membrane electrode assembly for a fuel cell includes: a gas diffusion layer; a polymer electrolyte membrane; and a catalyst layer disposed between the gas diffusion layer and the polymer electrolyte membrane, wherein the catalyst layer includes an ionomer, and a concentration of the ionomer varies within the catalyst layer according to a concentration profile.