Recycling of LiCoO2 cathode material from spent lithium ion batteries by ultrasonic enhanced leaching and one-step regeneration

Zhou, Siyuan; Zhang, Yingjie; Meng, Qi; Dong, Peng; Fei, Zitong; Li, Qingxiang

doi:10.1016/j.jenvman.2020.111426

Cited by 124 publications

(39 citation statements)

References 46 publications

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“…Ultrasonic treatment, a new energy input method, that can provide strong power and high intensity, has gradually matured in recent years and emerged in various fields, such as chemical pharmaceutical and metallurgical industry [16] , [17] . Studies have shown that the ultrasound technology could greatly accelerate processing rate.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic pretreatment of spodumene with different size fractions and its influence on flotation

Chu

Chen

et al. 2022

Ultrasonics Sonochemistry

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The potential of ultrasonic pretreatment enhancing selective surface dissolution to improve the floatability of spodumene with different size fractions was verified and investigated. For coarse particles of −0.15 + 0.0385 mm, compared with traditional pretreatment methods, ultrasonic pretreatment could optimize the physicochemical properties of the surface, markedly increased the amount of NaOL adsorbed on the mineral surface, and improved the floatability of the spodumene. For fine particles of −0.0385 mm, both pretreatment methods (Ultrasonic and Traditional) could greatly increase the flotation recovery, but ultrasonic pretreatment had no obvious advantage compared with traditional method. ICP combined with XPS analysis were conducted to investigate the dissolution mechanism of spodumene surface in different pretreatment system. Si species on the surface of coarse particles were easily dissolved into the solution under the effect of ultrasound, which increases the relative content of Al and Li species on the surface. This was conducive to the adsorption of the collectors on the surface. However, the selective dissolution of the fine particle surface was weakened by excessive energy intake in the ultrasonic system, which neutralized the advantage brought by the large amount of dissolution, making the results obtained by the two preprocessing methods the same.

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Section: Introductionmentioning

confidence: 99%

Ultrasonic pretreatment of spodumene with different size fractions and its influence on flotation

Chu

Chen

et al. 2022

Ultrasonics Sonochemistry

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“…In the present scenario, pyrometallurgy and hydrometallurgy are the mainstream LIB recovery technologies in industrial practice. , As illustrated in Figure a, a typical pyrometallurgical approach requires high-temperature smelting and subsequent tedious separation processes, while the hydrometallurgical approach − involves acid leaching, solvent extraction, as well as complicated precipitation steps. Only valuable metals (Co/Ni/Li) can be recovered in both metallurgies, − whereas considerable residues are left in the slags or leaching solutions, resulting in very low atomic efficiency. , Particularly, these methods suffer from cumbersome operation, huge energy expenditure, and harmful gas emission or wastewater disposal, which are in disagreement with the circular economy principles …”

Section: Introductionmentioning

confidence: 99%

Direct Regeneration of Spent Li-Ion Battery Cathodes via Chemical Relithiation Reaction

Lang

et al. 2021

ACS Sustainable Chem. Eng.

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Sustainable recycling of spent Li-ion batteries (LIBs) has provoked widespread public concern, considering the limited resources and environmental sustainability. Currently, industrial-scale reclamation of spent LIBs based on pyrometallurgy and hydrometallurgy only recovers valuable metal elements, accompanied by intense energy consumption. Herein, a closed-loop LIB cathode regeneration chain with high atomic utilization and minimal energy consumption is demonstrated. We designed a thermodynamically spontaneous Li+–electron concerted radical redox process, in which polycyclic aryl–lithium compounds served as both the reducing agent and Li+ donor to heal the Li loss in degraded cathodes. This chemical relithiation process takes only 10 min, but can easily extend the lifetime of the valuable cathodes. Most notably, the Li-donating aromatics and residual solvent can be recirculated for multiple utilizations, thus enabling a closed-loop recycling process with minimal emission of chemical waste. Our efficient and green chemical lithiation strategy provides a new perspective for LIB regeneration and can be extended to more advanced battery systems in the future.

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“…2,3 It is urgent for us to develop an economical, environmentally friendly, and efficient process for recycling spent LIBs to meet the challenges. 4,5 Cathode materials in spent LIBs are often composed of highvalue heavy metals such as Ni, Co, Mn, and so forth, which are the key parts for recycling. 6 The traditional recycling processes for spent LIBs include pyrometallurgy and hydrometallurgy.…”

Section: ■ Introductionmentioning

confidence: 99%

“…However, with the production and promotion of green pure electric vehicles, the number of spent LIBs will increase year by year. The environmental pollution problems such as heavy metal pollution, dust pollution, and so forth caused by a huge number of spent LIBs pose a serious challenge to the green development of human society. , It is urgent for us to develop an economical, environmentally friendly, and efficient process for recycling spent LIBs to meet the challenges. , …”

Section: Introductionmentioning

confidence: 99%

Restoring Surface Defect Crystal of Li-Lacking LiNi_0.6Co_0.2Mn_0.2O₂ Material Particles toward More Efficient Recycling of Lithium-Ion Batteries

Yang

Zhang

Xiao

et al. 2021

ACS Sustainable Chem. Eng.

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Lithium-ion batteries are the core components of new energy vehicles. Recycling of spent lithium-ion batteries resources is beneficial for the sustainable development of new energy vehicles. However, the current traditional recycling strategy has the disadvantages of high energy consumption and complex treatment process, which do not meet the requirements of green and energy saving. Here, we report a simpler and greener approach to regenerate spent cathode materials by preoxidation followed by a short annealing approach. The generated cathode material has a good crystal structure and lower Li/Ni mixing. Owing to the stable structure, the generated cathode material exhibits a capacity of 153.82 mA h g–1 at 1C over 2.8–4.3 V with retention reaching 94.74% after 100 cycles. β-NiOOH obtained by preoxidation is beneficial for transformation of the original layered structure in the subsequent short annealing process. The novel approach provides efficient and green ideas for efficient direct regeneration of spent cathode materials.

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Recycling of LiCoO2 cathode material from spent lithium ion batteries by ultrasonic enhanced leaching and one-step regeneration

Cited by 124 publications

References 46 publications

Ultrasonic pretreatment of spodumene with different size fractions and its influence on flotation

Ultrasonic pretreatment of spodumene with different size fractions and its influence on flotation

Direct Regeneration of Spent Li-Ion Battery Cathodes via Chemical Relithiation Reaction

Restoring Surface Defect Crystal of Li-Lacking LiNi_0.6Co_0.2Mn_0.2O₂ Material Particles toward More Efficient Recycling of Lithium-Ion Batteries

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Recycling of LiCoO2 cathode material from spent lithium ion batteries by ultrasonic enhanced leaching and one-step regeneration

Cited by 124 publications

References 46 publications

Ultrasonic pretreatment of spodumene with different size fractions and its influence on flotation

Ultrasonic pretreatment of spodumene with different size fractions and its influence on flotation

Direct Regeneration of Spent Li-Ion Battery Cathodes via Chemical Relithiation Reaction

Restoring Surface Defect Crystal of Li-Lacking LiNi0.6Co0.2Mn0.2O2 Material Particles toward More Efficient Recycling of Lithium-Ion Batteries

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Product

Resources

About

Restoring Surface Defect Crystal of Li-Lacking LiNi_0.6Co_0.2Mn_0.2O₂ Material Particles toward More Efficient Recycling of Lithium-Ion Batteries