Patent · US Active

Method for producing a catalyst-coated membrane

US12015158B2 · kind B2 · utility

0Cited by

6References

11Claims

0Family size

Assignee

HERAEUS DEUTSCHLAND GMBH & CO. KG · DE

Inventors

Frédéric Hasché · Hanau, DE
Markus NESSELBERGER · Hanau, DE
Nadia KUWERTZ · Hanau, DE
Florian Eweiner · Hanau, DE
Leonard STOICA · Hanau, DE

Key dates

Filing date	Apr 29, 2020
Grant date	Jun 18, 2024
Priority date	—
Expiry date	May 29, 2040

Classification

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

Abstract

The present invention relates to a method for producing a membrane for a fuel cell or electrolytic cell, in which (i) a liquid coating composition, which contains a supported catalyst containing precious metal and also contains an ionomer, is applied to a polymer electrolyte membrane which contains an ionomer, the ionomer of the liquid coating composition and the ionomer of the polymer electrolyte membrane each being a copolymer which contains as monomer a fluoroethylene and a fluorovinyl ether containing a sulfonic acid group, (ii) the coated polymer electrolyte membrane is heated to a temperature in the range from 178° C. to 250° C.

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