Use of porous membrane and composite membrane thereof in redox flow energy storage battery
US9123923B2 · kind B2 · utility
5Cited by
3References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 8, 2011 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Oct 10, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is use of a porous membrane and a composite membrane thereof in a redox flow batteries, and in particular the use thereof in a vanadium redox flow battery. The membrane can effectively realize the separation of ions with different valence states, and an ion transfer without any ion exchange group. The pore size and structure of the porous membrane can be controlled by filling an inorganic substance or grafting an ion exchange group in the pore, in order to improve the barrier properties of the porous membrane for vanadium ions and to increase proton conductivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.