Polymer electrolyte fuel cell
US6566002B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2001 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Nov 15, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polymer electrolyte fuel cell shall be provided such that degradation of the fuel cell due to condensed water can be prevented. A polymer electrolyte fuel cell of the present invention is provided wherein a plate A, a plate B, and a plate C are used; a passage is formed on each of the front and rear sides of each of the above-mentioned plates; a cell D or a permeable film E is interposed between two of the above-mentioned plates; a cell unit is thus formed; a plurality of such cell units are integrally laminated to form a polymer electrolyte fuel cell. Fuel gas and cooling water are caused to flow into a humidifying chamber F to humidify fuel gas. The resulting humidified fuel gas is supplied to a fuel chamber G, and moreover, oxidant gas is supplied to an oxidant chamber, thereby generating electricity. It is so arranged that the flow of fuel gas moving inside the above-mentioned humidifying chamber F is a counter flow with respect to the flow of cooling water moving inside the above-mentioned humidifying chamber F; and the flow of fuel gas moving inside the above-mentioned fuel chamber G is a co-flow with respect to the flow of cooling water moving inside the above-mentioned fu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.