SORFC system with non-noble metal electrode compositions
US7150927B2 · kind B2 · utility
40Cited by
23References
35Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 10, 2003 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | Nov 30, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid oxide regenerative fuel cell includes a ceramic electrolyte, a first electrode which is adapted to be positively biased when the fuel cell operates in a fuel cell mode and in an electrolysis mode, and a second electrode which is adapted to be negatively biased when the fuel cell operates in the fuel cell mode and in the electrolysis mode. The second electrode comprises less than 1 mg/cm2 of noble metal. By maintaining a reducing atmosphere on the second electrode at all times noble metals can be eliminated from the electrode composition which substantially reduces the cost of the fuel cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.