Algorithm for in-situ quantification of PEMFC membrane health over its life
US8900767B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Apr 26, 2011 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Oct 2, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for determining the health of the membranes in a fuel cell stack. The total parasitic current of the fuel cells in the stack is determined. From the total parasitic current, the shorting resistance and the cross-over parasitic current are determined. The health of the membranes is then determined from the cross-over parasitic current and the shorting resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.