Supplemental coolant heating for fuel cells with metal plates
US8603654B2 · kind B2 · utility
8Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2006 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Jul 19, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell stack that includes catalyzed surfaces in the non-active inlet region of the cathode flow channels. At cold system start-up, hydrogen is introduced into the cathode inlet header to be mixed with air so that a chemical reaction is provided by the catalyst that generates heat to warm the cooling fluid in the non-active inlet area. Therefore, the cooling fluid that enters the active area of the stack will not be cold enough to quench the chemical reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.