Proton exchange membrane fuel cell
US7811690B2 · kind B2 · utility
4Cited by
19References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 25, 2005 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Jul 19, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power generator comprising a hydrogen generator and a fuel cell stack having an anode exposed to hydrogen from the hydrogen generator and a cathode exposed to an ambient environment. Hydrophobic and hydrophilic layers are used to promote flow of water away from the cathode. A diffusion path thus separates the fuel cell cathode from the hydrogen generator. In one embodiment, water vapor generated from the fuel cell substantially matches water used by the hydrogen generator to generate hydrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.