Patent · US Expired

Membrane electrode unit for polymer electrolyte fuel cells and a process for the production thereof

US7419740B2 · kind B2 · utility

10Cited by

9References

18Claims

0Family size

Assignee

UNICORE AG & CO. KG · DE

Inventors

Matthias Binder · Alzenau, DE
Ralf Zuber · Großostheim, DE
Markus Vogt · Frankfurt am Main, DE
Gerhard Heinz · Bad Dürkheim, DE

Key dates

Filing date	Jul 19, 2001
Grant date	Sep 2, 2008
Priority date	—
Expiry date	Jul 19, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A membrane electrode assembly for polymer electrolyte fuel cells consisting of a polymer electrolyte membrane, both faces of which are in contact with porous reaction layers and gas distributor layers. The reaction layers contain noble metal catalysts supported on carbon and a proton-conducting polymer, a so-called ionomer. At least one of the two reaction layers also contains a noble metal black.

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