Bipolar ionomer membrane
US11417904B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Feb 3, 2017 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | May 21, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Provided are membranes useful for electrochemical or fuel cells. A membrane may be formed of or include a sulfonated polymer whereby the sulfonated polymer is covalently or ionically associated with a multi-nitrogen containing heterocyclic molecule. The resulting membranes possess excellent ion conductivity and selectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.