Utilizing black powder for electrolytes for flow batteries
US11495814B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Jul 21, 2020 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Sep 9, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and systems are provided for utilizing black powder to form an electrolyte for a flow battery. In an exemplary method the black powder is heated under an inert atmosphere to form Fe3O4. The Fe3O4 is dissolved in an acid solution to form an electrolyte solution. A ratio of iron (II) to iron (III) is adjusted by a redox process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.