Patent · US Expired

Ink for producing membrane electrode assemblies for fuel cells

US7754369B2 · kind B2 · utility

7Cited by

15References

14Claims

0Family size

Assignee

UMICORE AG & CO. KG · DE

Inventors

Karl-Anton Starz · Rodenbach, DE
Ralf Zuber · Großostheim, DE
Anita Krämer · Neuberg, DE
Knut Fehl · Schlüchtern, DE
Joachim Köhler · Ortenburg, DE
Sandra Wittpahl · Obertshausen, DE

Key dates

Filing date	Jul 27, 2001
Grant date	Jul 13, 2010
Priority date	—
Expiry date	Mar 26, 2022

Classification

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

Abstract

An ink is disclosed for producing membrane electrode assemblies for fuel cells which contains a catalyst material, an ionomer, water and an organic solvent. The ink is characterized in that the organic solvent is at least one compound from the group of linear dialcohols with a flash point higher than 100° C. and is present in the ink in a concentration between 1 and 50 wt. %, with respect to the weight of water.

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