Patent · US Active

Polymer electrolyte membrane based on polyazole

US9048478B2 · kind B2 · utility

0Cited by

10References

29Claims

0Family size

Assignee

BASF SE

Inventors

Ömer Ünsal · Mainz, DE
Sigmar Bräuninger · Garbsen, DE
Jörg Belack · Mainz, DE
Oliver Gronwald · Frankfurt, DE

Key dates

Filing date	Apr 21, 2011
Grant date	Jun 2, 2015
Priority date	—
Expiry date	Apr 21, 2031

Classification

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

Abstract

Proton-conducting polymer electrolyte membrane based on a polyazole salt of an inorganic or organic acid which is doped with an acid as electrolyte, wherein the polyazole salt of the organic or inorganic acid has a lower solubility in the acid used as electrolyte than the polyazole salt of the acid used as electrolyte, a process for producing the inventive proton-conducting polymer electrolyte membrane, a membrane-electrode assembly comprising at least two electrochemically active electrodes which are separated by a polymer electrolyte membrane, wherein the polymer electrolyte membrane is a proton-conducting polymer electrolyte membrane according to the invention, and a fuel cell comprising at least one membrane-electrode assembly according to the invention.

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