Method of forming densified edge seals for fuel cell components
US4269642A · kind A · utility
25Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1979 |
| Grant date | May 26, 1981 |
| Priority date | — |
| Expiry date | Oct 29, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A porous fuel cell component, such as an electrode substrate, has a densified edge which forms an improved gas seal during operation when soaked with electrolyte. The edges are made from the same composition as the rest of the component and are made by compressing an increased thickness of this material along the edges during the fabrication process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.