Phosphonic-acid grafted hybrid inorganic-organic proton electrolyte membranes (PEMs)
US7183370B2 · kind B2 · utility
3Cited by
26References
44Claims
0Family size
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Key dates
| Filing date | Sep 10, 2004 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Sep 20, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A proton conducting polymer is formed by the copolymerization of a plurality of compounds, including a silicon compound comprising an organic chain, and a compound including at least one acid group. The polymer comprises a hybrid organic-inorganic matrix having acid groups linked through a linking group. The linking group may include one or more electron withdrawing groups. The electron withdrawing group may be a halogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.