A novel technology of recovering magnetic micro particles from spent lithium-ion batteries by ultrasonic dispersion and waterflow-magnetic separation

Huang, Zhe; Lin, Mi; Qiu, Ruijun; Zhu, Jie; Ruan, Jujun; Qiu, Rongliang

doi:10.1016/j.resconrec.2020.105172

Cited by 26 publications

(12 citation statements)

References 29 publications

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“…Based on the theory of Derjaguin-Landau-Verwey-Overbeek, during ultrasonic dispersion, the dispersing or aggregation of particles were determined by the energy relations [40] , [41] , as follow

…”

Section: Resultsmentioning

confidence: 99%

Effect of cavitation bubble on the dispersion of magnetorheological polishing fluid under ultrasonic preparation

Guo

Liu

et al. 2021

Ultrasonics Sonochemistry

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“…Based on the theory of Derjaguin-Landau-Verwey-Overbeek, during ultrasonic dispersion, the dispersing or aggregation of particles were determined by the energy relations [40] , [41] , as follow

…”

Section: Resultsmentioning

confidence: 99%

Effect of cavitation bubble on the dispersion of magnetorheological polishing fluid under ultrasonic preparation

Guo

Liu

et al. 2021

Ultrasonics Sonochemistry

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“…27 Cobalt oxide and nickel oxide were reduced in different temperatures and then collected and separated by the new technology of micro-size magnetic separation. 28 High energy costs and the recovered low-purity products might be the two lacking areas of pyrometallurgy for recovering electrode materials of spent LIBs. It is worth noting that high-value reutilization of pyrometallurgy products is being developed.…”

Section: Introductionmentioning

confidence: 99%

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO₂ and LiAl₅O₈

Huang

Qiu

Lin

et al. 2021

Environ. Sci. Technol.

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Recovering valuable materials from spent lithium-ion batteries is an important task because of the asymmetry in resource distribution, supply, and demand around the world. A lithium-ion battery is a combination system of various elements and their oxides. Current recovering technologies focus on the separation of valuable metal elements. They can inescapably bring secondary contamination and cost to the environment due to the addition of leachants and precipitants. To recover valuable materials, in situ recombination of elements in spent lithium-ion batteries can be a more economical and environment-friendly solution. Herein, we developed a technology based on in situ aluminothermic reduction and interstitial solid solution transformation to recover high-value γ-LiAlO 2 and LiAl 5 O 8 under vacuum and high-temperature (1723 K) conditions. It was found that the process of Li 2 O filling into the lattice of O−Al−O structure is an energy-reducing process, while LiAl 5 O 8 was an existing high-energy transition-state matter. Since there was no wastewater generated, the process brought a new environment-friendly method for recovering valuable metals from spent lithium-ion batteries. This study also provides new comprehension regarding the design for high-value products' recovery from multi-element mixed wastes on an atomic scale.

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“…The problem of secondary pollution has greatly limited its practical application. To improve this, Xu et al have proposed an in situ CR approach to deal with waste LIBs for metal recycling since 2016, where anode materials (graphite) act as the reductant of the CR reaction at 1273 K. Without any other additives, the lithium (Li) element is recovered as lithium carbonate, while the transition metal elements as metals or metal oxides remained as the residue on further recycling. , Then, great efforts have been made to increase metal recycling efficiencies from waste LIBs based on CR technology. − Wang et al used carbonation leaching to promote the Li extraction after the CR reaction. The remaining transition metal element could be leached out without adding reductants. , Based on this, different high-purity metal products could be recovered to achieve the close-loop process .…”

Section: Introductionmentioning

confidence: 99%

Unveiling the Control Mechanism of the Carbothermal Reduction Reaction for Waste Li-Ion Battery Recovery: Providing Instructions for Its Practical Applications

Xiao

Gao

Zhan

et al. 2021

ACS Sustainable Chem. Eng.

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Resource recycling from waste Li-ion batteries (LIBs) can greatly relieve the pressure of resource shortage in manufacturing LIBs, helping to achieve the purpose of sustainable development. The carbothermal reduction (CR) as a proved treatment technology for waste LIB recovery has attracted much attention due to its practicality. Great efforts have been made to promote practical application of CR technology, but the related studies are insufficient and some scientific questions remain unclear. In this study, a multistage control mechanism of the CR reaction is revealed to provide instructions for promoting the resource recycling from waste LIBs. First, from roasting experiments and thermogravimetric analysis, the CR reaction interval is determined to be between 873 and 1073 K. Furthermore, detailed kinetic calculations are conducted to obtain kinetic triplets, where the reaction model is determined. The result indicates that CR reaction includes three subreactions. Then, the concept of contribution of different subreactions is applied to confirm the key subreaction at different reaction stages, which helps to unveil the control mechanism. Finally, experiments are performed to verify the control mechanism. The results indicate the targeted operations can be performed to control the CR reaction based on the control mechanism.

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A novel technology of recovering magnetic micro particles from spent lithium-ion batteries by ultrasonic dispersion and waterflow-magnetic separation

Cited by 26 publications

References 29 publications

Effect of cavitation bubble on the dispersion of magnetorheological polishing fluid under ultrasonic preparation

Effect of cavitation bubble on the dispersion of magnetorheological polishing fluid under ultrasonic preparation

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO₂ and LiAl₅O₈

Unveiling the Control Mechanism of the Carbothermal Reduction Reaction for Waste Li-Ion Battery Recovery: Providing Instructions for Its Practical Applications

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A novel technology of recovering magnetic micro particles from spent lithium-ion batteries by ultrasonic dispersion and waterflow-magnetic separation

Cited by 26 publications

References 29 publications

Effect of cavitation bubble on the dispersion of magnetorheological polishing fluid under ultrasonic preparation

Effect of cavitation bubble on the dispersion of magnetorheological polishing fluid under ultrasonic preparation

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO2 and LiAl5O8

Unveiling the Control Mechanism of the Carbothermal Reduction Reaction for Waste Li-Ion Battery Recovery: Providing Instructions for Its Practical Applications

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Product

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About

In Situ Recombination of Elements in Spent Lithium-Ion Batteries to Recover High-Value γ-LiAlO₂ and LiAl₅O₈