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| Green Short-process Regeneration Technology of Scrap Ternary Li-ion Batteries |
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Received:January 27, 2022
Revised:February 14, 2022
Accepted:February 16, 2022
Published Online:August 11, 2022
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| DOI：doi：10.3969/j.issn.1007-7545.2022.09.005 |
| KeyWord:scrap ternary li-ion batteries; vacuum metallurgy; oxidative roasting；green short-process；precursor |
| Author | Institution |
| CAI Le-tao |
上海第二工业大学 资源与环境工程学院;华东师范大学第四附属中学. |
| GU Wei-hua |
上海第二工业大学 资源与环境工程学院 |
| MA En |
上海第二工业大学 资源与环境工程学院 |
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| Abstract: |
| The implementation of the national "dual carbon" strategy requires support of green innovation technologies. CHNS elemental analyzer, ICP-OES and other methods were used to analyze composition of black powder in scrap ternary Li-ion batteries. Through Gibbs free energy and saturated vapor pressure analysis, it is demonstrated that the feasibility of Li recovery and removal of Al by vacuum carbon reduction method. The results of vacuum carbon reduction experiments show that 98.17% of Li can be recovered at 550 ℃, 98.21% of Al can be removed at 850 ℃. By oxidative roasting, 100% of C can be removed at 750 ℃, then the ternary precursor can be finally obtained. |
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