Patent · US Expired

Fuel cell with polymer electrolyte membrane

US6706435B1 · kind B1 · utility

2Cited by

4References

11Claims

0Family size

Assignee

BALLARD POWER SYSTEMS INC. · US

Inventors

Hubertus Biegert · Unterkirnach, DE
Peter Britz · Frankenberg, Hesse, DE
Arnold Lamm · Langenau, DE
Gabor Toth · San Jose, US
Peter Urban · Northbrook, US

Key dates

Filing date	Apr 8, 2002
Grant date	Mar 16, 2004
Priority date	—
Expiry date	Apr 8, 2022

Classification

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

Abstract

A fuel cell includes at least one cell that contains a proton-conducting polymer electrolyte membrane, which separates an anode compartment and a cathode compartment. The membrane is comprised of a thermoplastic polymer that has a permanent service temperature of at least 100° C.

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