Fuel cell and process for the production thereof
US7390588B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2004 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Jan 29, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A first gas flow path is formed in a first substrate. The first substrate is processed in an ejection device to form a first collector layer, a first gas diffusion layer, a first reactive layer, and an electrolyte membrane. Similarly, the first substrate is processed to form a second reactive layer, a gas diffusion layer, and a second collector layer. A second substrate which has been processed to form a second gas flow path is then disposed on the first substrate to complete production of a fuel cell having a gas flow path formed therein the opening width of which is smaller than the particle diameter of the material constituting the gas diffusion layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.