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:
Mar. 17, 2020
Filed:
Nov. 24, 2015
Daimler Ag, Stuttgart, DE;
Ford Motor Company, Dearborn, MI (US);
Carmen Chuy, Burnaby, CA;
Scott McDermid, Vancouver, CA;
Kyoung Bai, Vancouver, CA;
Tran Ngo, Vancouver, CA;
Daimler AG, Stuttgart, DE;
Ford Motor Company, Dearborn, MI (US);
Abstract
A membrane electrode assembly for a fuel cell, with a membrane, a catalyst layer () and a gas diffusion layer. The catalyst layer () has a first side facing the membrane and a second side facing the gas diffusion layer. In the catalyst layer () an ionomer content increases towards the membrane. The catalyst layer () has a first sublayer () in which catalyst particles () are coated with a first ionomer (). The catalyst layer () further has a second sublayer () with a second ionomer () which is closer to the membrane than the first sublayer (). Pores () are present at least between the coated catalyst particles (). Further, a method for preparing such a membrane electrode assembly, a fuel cell system and a vehicle with a fuel cell system.