Procedure for detecting the state of permeability of the ion exchange polymer membrane of a fuel cell
US9755254B2 · kind B2 · utility
1Cited by
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6Claims
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Key dates
| Filing date | Nov 29, 2013 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Nov 29, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An automated method or procedure for detecting a permeability state of a membrane of a fuel cell stack is provided. The procedure is sensitive enough to detect a defective membrane, and is accurate enough to enable correct maintenance of the fuel cell stack. The fuel cell stack is formed of a stack of electrochemical cells each having an anode and a cathode sandwiching a polymeric ion-exchange membrane therebetween. The fuel cell stack includes a fuel gas supply system on the anode side of the electrochemical cells, and includes an oxidant gas supply system on the cathode side of the electrochemical cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.