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有色金属(冶炼部分):2022,(9):43-48
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报废三元锂电池的绿色短流程再生技术
蔡乐涛1,2, 顾卫华1, 马恩1
(1.上海第二工业大学 资源与环境工程学院;2.华东师范大学第四附属中学.)
Green Short-process Regeneration Technology of Scrap Ternary Li-ion Batteries
CAI Le-tao1,2,GU Wei-hua1,MA En1
(1.School of Resources and Environmental Engineering,Shanghai Polytechnic University,Shanghai 201209,China;2.No.4 Middle School Affiliated to ECNU,Shanghai 200062,China.)
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投稿时间:2022-01-27     修订日期:2022-02-14     录用日期:2022-02-16     网络发布日期:2022-08-11
中文摘要: 国家“双碳”战略的实施需要绿色创新技术的支持。综合运用元素分析、ICP-OES等方法分析退役三元锂电池中黑粉的成分;通过吉布斯自由能和饱和蒸气压分析,论证了真空碳还原法回收Li和去除Al的可行性。真空碳还原试验结果表明,在550 ℃可以回收98.17%的Li,在850 ℃可去除98.21%的Al;通过氧化焙烧方式,在750 ℃可去除100%的C,最终得到三元前驱体。
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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基金项目:国家重点研发计划项目(2019YFC1904400)
引用文本:
蔡乐涛,顾卫华,马恩.报废三元锂电池的绿色短流程再生技术[J].有色金属(冶炼部分),2022(9):43-48.
CAI Le-tao,GU Wei-hua,MA En.Green Short-process Regeneration Technology of Scrap Ternary Li-ion Batteries[J].Nonferrous Metals (Extractive Metallurgy),2022(9):43-48.

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