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:
Feb. 25, 2020
Filed:
Feb. 01, 2017
Audi Ag, Ingolstadt, DE;
Volkswagen Ag, Wolfsburg, DE;
Gerold Hübner, Braunschweig, DE;
AUDI AG, Ingolstadt, DE;
VOLKSWAGEN AG, Wolfsburg, DE;
Abstract
In order to provide a membrane () for a membrane-electrode assembly (MEA) of a fuel cell, comprising two partial membranes (), which allows for a simpler water circuit compared to the prior art, it is proposed that the partial membranes () have different ion exchange capacities (IECs) and/or one partial membrane () consists of a perfluorosulfonic acid polymer (PFSA) and the other partial membrane () consists of a sulfonated hydrocarbon polymer (HC). Optionally, the membrane can contain a porous carrier film (). Moreover disclosed are a method for producing the membrane () as well as a membrane-electrode assembly and a fuel cell.