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:
Jun. 12, 2018
Filed:
Apr. 01, 2015
Audi Ag, Ingolstadt, DE;
Sergei F. Burlatsky, West Hartford, CT (US);
Ned E. Cipollini, Enfield, CT (US);
David A. Condit, Avon, CT (US);
Thomas H. Madden, Glastonbury, CT (US);
Sathya Motupally, Milford, CT (US);
Lesia V. Protsailo, East Hartford, CT (US);
Timothy W. Patterson, East Hartford, CT (US);
Lei Chen, South Windsor, CT (US);
Mallika Gummalla, Longmeadow, MA (US);
Audi AG, Ingolstadt, DE;
Abstract
A membrane electrode assembly is provided which includes an anode; a cathode; a membrane between the anode and the cathode; and a protective layer between the membrane and at least one electrode of the anode and the cathode, the protective layer having a layer of ionomer material containing a catalyst, the layer having a porosity of between 0 and 10%, an ionomer content of between 50 and 80% vol., a catalyst content of between 10 and 50% vol., and an electrical connectivity between catalyst particles of between 35 and 75%. A configuration using a precipitation layer to prevent migration of catalyst ions is also provided.