Patent · US Active

Membrane-electrode unit and fuel elements with increased service life

US8012647B2 · kind B2 · utility

0Cited by

7References

15Claims

0Family size

Assignee

BASF FUEL CELL GMBH · DE

Inventors

Jürgen Pawlik · Frankfurt, DE
Oemer Uensal · Mainz, DE
Thomas Schmidt · Leonding, AT
Christoph Padberg · Hersbruck, DE
Glen Hoppes · Frankfurt, DE

Key dates

Filing date	Aug 5, 2005
Grant date	Sep 6, 2011
Priority date	—
Expiry date	Nov 23, 2026

Classification

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

Abstract

The invention relates to a membrane-electrode unit comprising a) two electrochemically active electrodes divided by a polymer electrolytic membrane, wherein the surfaces of said polymer electrolytic membrane are in contact with the electrodes in such a way that the first electrode partially or entirely covers the front side of the polymer electrolytic membrane and the second electrode partially or entirely covers the rear side thereof, b) a sealing material is applied to the front and rear sides of the polymer electrolytic membrane, wherein the polymer electrolytic membrane is provided with one or several recesses and the sealing material applied to the front side of the polymer electrolytic membrane is in contact with the sealing material applied to the rear side thereof. A method for producing said membrane-electrode unit and fuel cells provided therewith are also disclosed.

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