Cathode composition for solid oxide fuel cell
US6548203B2 · kind B2 · utility
6Cited by
2References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 19, 2002 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Apr 19, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high performance electrocatalyst is based on transition metal perovskites of praseodymium, samarium, terbium or neodymium which react with YSZ to form a product which is itself active as the cathode in a fuel cell. While PrCoO3 reacts with YSZ, the reaction product(s) do not result in severe degradation of cell performance. A fuel cell made with a cathode composed of only the reaction product of YSZ and PrCoO3 has good performance, indicating that this phase is itself not only a good conductor, but also a good catalyst for oxygen activation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.