Fuel efficient membrane electrode assembly
US7348081B2 · kind B2 · utility
0Cited by
9References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2003 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Dec 13, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a fuel efficient membrane electrode assembly that substantially resists methanol from “crossing over” by sealing the anode diffusion layer and catalyst layer, and by preventing fluids from passing across at least a portion of the membrane electrolyte. The efficiency of the fuel cell is maintained because essentially all of the fuel is reacted on the catalyst layers creating electricity, which is transferred to the fuel cell load. The temperature of the fuel cell is also maintained as the uncatalyzed reaction that produces heat is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.