Systems and methods for electrochemical surface area retention using hydrogen crossover
US8568936B1 · kind B1 · utility
0Cited by
7References
20Claims
0Family size
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Key dates
| Filing date | Oct 23, 2012 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Oct 23, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for electrochemical surface area retention of fuel cell catalyst using hydrogen crossover are disclosed. One fuel cell system embodiment comprises a fuel cell including an anode having a fuel gas supply and a cathode having an air supply and a controller. The controller is configured to detect a high voltage condition in the fuel cell and increase hydrogen partial pressure in the cathode when the high voltage condition is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.