A novel strategy of lithium recycling from spent lithium-ion batteries using imidazolium ionic liquid

Zheng, Hongshuai; Huang, Jia‐Qi; Dong, Tao; Sha, Yifan; Zhang, Haitao; Gao, Jie; Zhang, Suojiang

doi:10.1016/j.cjche.2021.09.020

Cited by 31 publications

(15 citation statements)

References 33 publications

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“…The present approach is more energy efficient, safe, and economical for Li and Co extraction than the pyrometallurgical, biometallurgical, and acid–base leaching methods (Table S6). Furthermore, the extraction efficiency (>90%) is comparable with those of other hydrometallurgical methods under milder conditions , (Table S6).…”

Section: Resultsmentioning

confidence: 99%

“…15 Hydrometallurgy affords high extraction efficiencies, 16 though it necessitates the use of extreme chemical conditions, e.g., alkali metal hydroxides and concentrated acids. 17 Green solvents, such as ionic liquids 18,19 and organic acids, 20 generally require additional reagents to accelerate the extraction process, and their stability, production cost, and waste disposal are problematic. 21 In the present work, we demonstrate the use of recently described amide-based nonionic deep eutectic solvents (ni-DESs) 22 for the highly efficient extraction and recovery of cobalt from spent LiBs without the need for additional reagents.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Highly Efficient Recovery and Recycling of Cobalt from Spent Lithium-Ion Batteries Using an N-Methylurea–Acetamide Nonionic Deep Eutectic Solvent

et al. 2023

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The growing demand for lithium-ion batteries (LiBs) for the electronic and automobile industries combined with the limited availability of key metal components, in particular cobalt, drives the need for efficient methods for the recovery and recycling of these materials from battery waste. Herein, we introduce a novel and efficient approach for the extraction of cobalt, and other metal components, from spent LiBs using a nonionic deep eutectic solvent (ni-DES) comprised of N-methylurea and acetamide under relatively mild conditions. Cobalt could be recovered from lithium cobalt oxide-based LiBs with an extraction efficiency of >97% and used to fabricate new batteries. The N-methylurea was found to act as both a solvent component and a reagent, the mechanism of which was elucidated.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Highly Efficient Recovery and Recycling of Cobalt from Spent Lithium-Ion Batteries Using an N-Methylurea–Acetamide Nonionic Deep Eutectic Solvent

et al. 2023

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“…Because of its high energy density and electrochemical potential, lithium is used in many kinds of applications, especially in lithium-ion batteries . Lithium is also used in ceramics and glass, air conditioning systems, and the treatment of bipolar disorder. − Because of the increasing use of lithium-ion batteries in various fields, the consumption of lithium has increased, so the recovery and extraction of Li + from aqueous samples have gained traction. , It has also been shown that extracting lithium from various saline waters, such as geothermal water and seawater, which are known to be significant sources of lithium, is less costly than extracting lithium from rocks through mining. − , …”

Section: Introductionmentioning

confidence: 99%

“…6,7 It has also been shown that extracting lithium from various saline waters, such as geothermal water and seawater, which are known to be significant sources of lithium, is less costly than extracting lithium from rocks through mining. [2][3][4]8 To date, various methods have been used to remove/recover Li + from various water samples. Such methods can be divided into sorption, 9,10 biosorption, 2,4,11 ion exchange, 12,13 solvent extraction, 14,15 precipitation, 16 and membrane processes.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Electrodeionization for Lithium Removal

2023

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In this work, usage of a hybrid polymeric ion exchange resin and a polymeric ion exchange membrane in the same unit to remove Li + from aqueous solutions was reported. The effects of the applied potential difference to the electrodes, the flow rate of the Li-containing solution, the presence of coexisting ions (Na + , K + , Ca 2+ , Ba 2+ , and Mg 2+ ), and the influence of the electrolyte concentration in the anode and cathode chambers on Li + removal were investigated. At 20 V, 99% of Li + was removed from the Li-containing solution. In addition, a decrease in the flow rate of the Licontaining solution from 2 to 1 L/h resulted in a decrease in the removal rate from 99 to 94%. Similar results were obtained when the concentration of Na 2 SO 4 was decreased from 0.01 to 0.005 M. The selectivity test showed that the simultaneous presence of monovalent ions such as Na + and K + did not change the removal rate of Li + . However, the presence of divalent ions, Ca 2+ , Mg 2+ , and Ba 2+ , reduced the removal rate of Li + . Under optimal conditions, the mass transport coefficient of Li + was found as 5.39 × 10 −4 m/s, and the specific energy consumption was found as 106.2 W h/g LiCl. Electrodeionization provided stable performance in terms of the removal rate and transport of Li + from the central compartment to the cathode compartment.

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Lithium and Cobalt Recovery from Lithium‐Ion Battery Waste via Functional Ionic Liquid Extraction for Effective Battery Recycling

et al. 2022

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Sustainable management of spent lithium-ion batteries, LIBs, is an urgent and critical challenge due to the number of such devices reaching the end-of-life. Recycling can offer a path for the recovery of valuable raw materials such as lithium and cobalt, whose supply is critical. Thus, it is mandatory to develop efficient ways for the selective recovery of Li and Co from the cathode degradation processes. In this study the most updated organic acids-based processes for the degradation of LiCoO 2 , the most common LIBs cathode, is explored to obtain a leached solution containing Li and Co. The possibility to exploit the 3-methyl-1-octylimidazolium thenoyltrifluoroacetone, Omim-TTA, ionic liquid was demonstrated to efficiently separate Li and Co. In particular it was possible to recover > 70 % of Li and separate it from Co using this ionic liquid, independently from the organic acid used for the leaching procedure and adding EDTA to the aqueous phase. The quantification was carried out through ICP analysis; the recovering of the unaltered ionic liquid was also demonstrated, to further increase the global sustainability of the process.

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A novel strategy of lithium recycling from spent lithium-ion batteries using imidazolium ionic liquid

Cited by 31 publications

References 33 publications

Highly Efficient Recovery and Recycling of Cobalt from Spent Lithium-Ion Batteries Using an N-Methylurea–Acetamide Nonionic Deep Eutectic Solvent

Highly Efficient Recovery and Recycling of Cobalt from Spent Lithium-Ion Batteries Using an N-Methylurea–Acetamide Nonionic Deep Eutectic Solvent

Utilization of Electrodeionization for Lithium Removal

Lithium and Cobalt Recovery from Lithium‐Ion Battery Waste via Functional Ionic Liquid Extraction for Effective Battery Recycling

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