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| Preparation of V2O3 for Vanadium Redox Battery by Hydrogen Roasting and Reduction |
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Received:February 05, 2024
Revised:February 06, 2024
Accepted:February 20, 2024
Published Online:June 05, 2024
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| DOI：doi：10.3969/j.issn.1007-7545.2024.07.016 |
| KeyWord:ammonium metavanadate (AMV) ; hydrogen reduction; V2O3; microstructure; vanadium redox battery |
| Author | Institution |
| GAO Chong |
矿冶科技集团有限公司 |
| BAI Lianqiang |
金川集团股份有限公司,甘肃 |
| SUN Kena |
矿冶科技集团有限公司 |
| WANG Weizhen |
矿冶科技集团有限公司 |
| WANG Zhifei |
矿冶科技集团有限公司 |
| HUANG Haihui |
矿冶科技集团有限公司 |
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| Abstract: |
| The effects experimental conditions, crystal phase and microstructure of V2O3 for vanadium redox battery prepared by hydrogen roasting and reduction of ammonium metavanadate (AMV) were studied. The results show the optimal test conditions include hydrogen reduction temperature of 575 ℃, hydrogen reduction time of one hour and hydrogen gas flow rate of 100 mL/min, and cooling with furnace after reduction. The samples obtained by the above test scheme are basically all V2O3, the main crystal phase is V2O3, and the grains are full in microstructure and tightly packed together in the form of flake or block. Finally, the battery grade V2O3 can be produced, and qualified vanadium redox battery electrolyte can be prepared. |
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