Low-humidification and durable fuel cell membrane
US6824909B2 · kind B2 · utility
15Cited by
4References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Dec 31, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low humidification and durable fuel cell membrane is provided with water adsorbing material embedded therein in order to adsorb water under wet conditions and provide a reservoir of water to keep the membrane irrigated under dry conditions. A hydrogen oxidation catalyst is provided on the water adsorbing material which will catalyze the reaction of hydrogen and oxygen that are crossing through the membrane and will serve to irrigate the membrane and keep the water adsorbing material full of water. Accordingly, the humidification requirements to a fuel cell stack in an operating system are reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.