Preparation of flow cell battery electrolytes from raw materials
US8394529B2 · kind B2 · utility
24Cited by
63References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2010 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Feb 9, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for preparing a redox flow battery electrolyte is provided. In some embodiments, the method includes the processing of raw materials that include sources of chromium ions and/or iron ions. The method further comprises the removal of impurities such as metal ions from those raw materials. In some embodiments, an ammonium salt may be used to remove metal impurities from an aqueous mixture of chromium ions and/or iron ions. Further provided is a redox flow battery comprising at least one electrolyte prepared from the above-identified methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.