Method and system for starting up fuel cell stack at subzero temperatures, and method of designing fuel cell stack
US7572529B2 · kind B2 · utility
3Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2004 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Nov 21, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of starting up at a subzero temperature a solid polymer electrolyte fuel cell stack that is formed by stacking a plurality of layers of separators and membrane electrode assemblies having a solid polymer electrolyte membrane and electrodes. The method includes a step of using a solid polymer electrolyte fuel cell stack in which the separators are made from metal and have a cross-sectional waveform structure, and a space that is formed between at least a portion of the separators and separators that are placed adjacent to this portion of the separators is used as a coolant flow passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.