Method for the fabrication of homogenous blends of polystyrenesulfonic acid and polyvinylidene fluoride suitable for the application in direct oxidation methanol fuel cells (DMFCs)
US10586995B2 · kind B2 · utility
1Cited by
1References
19Claims
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Key dates
| Filing date | Aug 18, 2015 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Jun 15, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A membrane electrode assembly includes an anode catalyst layer, a cathode catalyst layer, and a polymeric blend proton exchange membrane interposed between the anode catalyst layer and the cathode catalyst layer. The polymeric blend proton exchange membrane includes a scaffold polymer and a polyacid polymer. The polyacid polymer being formed from a polyacid polymer precursor. Characteristically, the scaffold polymer and the polyacid polymer precursor have matching solubility parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.