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:
Nov. 10, 2009
Filed:
Nov. 29, 2006
Stefan Haufe, Goettingen, DE;
Annette Reiche, Goettingen, DE;
Suzana Kiel, Goettingen, DE;
Ulrich Maehr, Berlin, DE;
Dieter Melzner, Goettingen, DE;
Stefan Haufe, Goettingen, DE;
Annette Reiche, Goettingen, DE;
Suzana Kiel, Goettingen, DE;
Ulrich Maehr, Berlin, DE;
Dieter Melzner, Goettingen, DE;
Elcomax Membranes GmbH, Munich, DE;
Abstract
A membrane electrode assembly (MEA) for a fuel cell, which has a planar polymer membrane. This membrane, in a tangentially inner area, is coated on both sides with electrode structure, and, in a tangentially outer area projecting at least on one side beyond the electrode structure coating, is connected to a sealing member. A marginal zone of the polymer membrane is embedded in the elastomer sealing member. The sealing member extends tangentially inward to a transition area that lies tangentially between the outer area and the inner area, where it overlaps the electrode structures on outer faces of the electrode structures, on both of the sides of the polymer membrane.