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The selective recovery of lithium from retired ternary lithium batteries by carbothermal reduction-two-step leaching(water leaching-acid leaching)process was studied.The effects of carbothermal reduction and leaching test conditions on lithium leaching were investigated.The results show that the cathode powder and activated carbon are compounded according to the ratio of carbon mass fraction of 27%.After roasting at 600 ℃ for 90 min,the roasting product is mixed with ultrapure water according to the solid-liquid mass volume ratio of 1/18,and then 83% of the theoretical amount of sulfuric acid is added dropwise.After leaching at 65 ℃ for 20min,the lithium leaching rate is more than 98%,while the leaching rates of nickel,cobalt and manganese are less than5%,and the lithium recovery effect is better.
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Basic Information:
DOI：10.13355/j.cnki.sfyj.2026.03.005
China Classification Code:X705;TF826.3
Citation Information:
[1]ZHANG Min,WU Xiaoqian,CHEN Ming ,et al.Recovery of Lithium from Retired Ternary Lithium Batteries by Carbothermal Reduction-Two-step Leaching Method[J].Hydrometallurgy of China,2026,45(03):308-316.DOI:10.13355/j.cnki.sfyj.2026.03.005.
Fund Information:
广西壮族自治区科技计划项目(桂科AB24010018)
2026-03-02
2026-03-02
2026-03-02