Patent · US Active

Membrane electrode assembly for a fuel cell

US7615306B2 · kind B2 · utility

1Cited by

4References

15Claims

0Family size

Assignee

Elcomax Membranes GmbH · DE

Inventors

Stefan Haufe · Neubiberg, DE
Annette Reiche · Oettingen, DE
Suzana Kiel · Göttingen, DE
Ulrich Maehr · Berlin, DE
Dieter Melzner · Göttingen, DE

Key dates

Filing date	Nov 29, 2006
Grant date	Nov 10, 2009
Priority date	—
Expiry date	Jan 4, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.