Hydrolytically-stable hydrophilic coatings for PEMFC bipolar plate
US9123921B2 · kind B2 · utility
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5References
20Claims
0Family size
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Key dates
| Filing date | May 13, 2008 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | May 12, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Bipolar plates useful for fuel cell applications include a plate body having a channel-defining surface that is at least partially coated with a hydrophilic layer. This hydrophilic layer comprises residues of a silane-coupling agent in a sufficient amount such portions of the first hydrophilic layer have a contact angle less than a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.