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Facile and sustainable recovery of spent LiFePO4 battery cathode materials in a Ca(ClO)2 system.
- Source :
- Green Chemistry; 3/21/2024, Vol. 26 Issue 6, p3317-3328, 12p
- Publication Year :
- 2024
-
Abstract
- Spent LiFePO<subscript>4</subscript> batteries are gradually increasing in popularity and interest, and their stable and insoluble olive-shaped structure poses a great challenge for the sustainable recycling of Li. In this study, a simple and sustainable Ca(ClO)<subscript>2</subscript> system was proposed for the recovery of spent LiFePO<subscript>4</subscript> battery cathode materials. The effects of both mechanochemical activation and hydrometallurgical enhanced leaching on the deconstruction of LiFePO<subscript>4</subscript> and the leaching rates of Li and Fe in the Ca(ClO)<subscript>2</subscript> system were studied. Compared with mechanochemical activation, Ca(ClO)<subscript>2</subscript>-assisted hydrometallurgical enhanced leaching can simultaneously achieve the separation and enrichment of the target components Li<superscript>+</superscript> and Fe<superscript>3+</superscript> and the Ca<superscript>2+</superscript> impurities. The transformation path and reaction mechanism of LiFePO<subscript>4</subscript> in the Ca(ClO)<subscript>2</subscript> system were proposed based on the phase composition and micromorphology of the reaction products. In addition, the economic evaluation results show that Ca(ClO)<subscript>2</subscript>-assisted hydrometallurgical enhanced leaching has a high recovery economy. The developed Ca(ClO)<subscript>2</subscript> system realizes the strong dissolution of spent LiFePO<subscript>4</subscript> battery cathode materials and the sustainable comprehensive recovery of valuable components. [ABSTRACT FROM AUTHOR]
- Subjects :
- CATHODES
LEACHING
STORAGE batteries
Subjects
Details
- Language :
- English
- ISSN :
- 14639262
- Volume :
- 26
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Green Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 176105519
- Full Text :
- https://doi.org/10.1039/d3gc04418a