An Efficient and Eco-Friendly Recycling Route of Valuable Metals from Spent Ternary Li-Ion Batteries: Kinetics Evaluation of Chlorination Processes and Regeneration of LiNi0.8Co0.1Mn0.1O2 Cathode Materials

被引:3
作者
Mu, Wenning [1 ,2 ,3 ,4 ]
Bi, Xiaolong [1 ,2 ]
Meng, Junjin [1 ,2 ]
Sun, Weisong [1 ,2 ]
Lei, Xuefei [1 ,2 ,3 ]
Luo, Shaohua [1 ,2 ,3 ]
机构
[1] Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China
[2] Northeastern Univ Qinhuangdao, Sch Resources & Mat, Qinhuangdao 066004, Hebei, Peoples R China
[3] Key Lab Dielect & Electrolyte Funct Mat Hebei Prov, Qinhuangdao 066004, Hebei, Peoples R China
[4] Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China
基金
中国国家自然科学基金;
关键词
spent ternary Li-ion batteries; valuablemetal recovery; chlorination kinetics; regeneration; SC-NCM811; PROCESS OPTIMIZATION; ORGANIC-ACIDS; HEAVY-METALS; NI-RICH; LITHIUM; RECOVERY; COBALT; NICKEL; PERFORMANCE; TECHNOLOGY;
D O I
10.1021/acsami.4c09834
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The recycling of spent Li-ion batteries is urgent, and the effective recovery of valuable metals from spent cathode material is an economic and eco-friendly approach. In this study, Ni, Cu, Co, and Mn were extracted synchronously from spent LiNixCoyMn1-x-yO2 by chlorination and the complexation reaction of ammonium chloride at low temperatures. The kinetics of the chlorination process was investigated by nonisothermal thermal analysis to determine the rate equation of metal conversion, and the apparent activation energies were calculated to be 99.96 kJ<middle dot>mol(-1) for lithium and 146.70 kJ<middle dot>mol(-1) for nickel, cobalt, and manganese, respectively. The separation of valuable metals from polymetallic leaching solution and the regeneration of cathode materials were further investigated to promote the industrialization of the process. The recoveries of Ni, Co, Mn, and Li can reach 97.75, 99.99, 99.99, and 92.23%, respectively. The prepared LiNi0.8Co0.1Mn0.1O2 precursor is a multilayer spherical particle formed by stacking primary hexagonal nanosheets along the (010) crystal axis, the formation mechanism of which was discussed. The effect of temperature, time, and mixed lithium ratio on the performance of single crystal LiNi0.8Co0.1Mn0.1O2 cathode in the synthesis process was investigated to determine the optimum conditions. Compared with commercial materials, the prepared single crystal LiNi0.8Co0.1Mn0.1O2 cathode has a more regular crystal structure and higher initial discharge capacity (215.9 mAh<middle dot>g(-1) at 0.1 C).
引用
收藏
页码:47646 / 47661
页数:16
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