Flexible, water-repellent baked carbon plate, its production, fuel cell electrode, fuel cell electrode plate and its production and fuel cell
US4894355A · kind A · utility
46Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Jan 20, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell electrode having a catalyst layer comprising electroconductive particles carrying a catalytically active component and a binder on a water-repellent baked plate comprising a carbon paper comprising carbon fiber and an organic binder and polytetrafluoroethylene infiltrated into voids of said carbon paper, characterized in that the carbon fiber of said baked plate has at least 20 cutting edges per square millimeter, and said polytetrafluoroethylene is infiltrated into at least one of said cutting edges to render the plate flexible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.