Silicon carbide matrix for fuel cells
US4695518A · kind A · utility
5Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1985 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Apr 10, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A matrix for holding the electrolyte within a phosphoric acid fuel cell is made from silicon carbide and a binder of polyestersulfone. Preferably the matrix consists of 10-20 weight percent polyethersulfone with a balance of silicon carbide. The matrix has improved strength, wettability and bubble pressure compared to the best known prior art matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.