Fuel cell system and method for operating same
US6743538B2 · kind B2 · utility
1Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2001 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Jan 20, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell system has an anode space and a cathode space with a separating proton-conducting membrane. A cathode feed line is used to feed oxygen-containing gas to the cathode space, and an anode line is used to feed and discharge an operating medium into the anode space. A representative temperature is determined for the system, and metered amounts of operating medium are passed to the cathode space as a function of this temperature. Increasing in the operating medium concentration in the cathode space in this manner causes a reduction in the freezing point and, when the system is started, an exothermic catalytic reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.