Microwave-ultra-fast recovery of valuable metals from spent lithium-ion batteries by deep eutectic solvents

Zhu, Ahui; Bian, Xinyu; Han, Weijiang; Wen, Yong; Yao, Ke; Wang, Guiling; Yan, Jun; Cao, Dianxue; Zhu, Kai; Wang, Shubin

doi:10.1016/j.wasman.2022.11.035

Cited by 19 publications

(10 citation statements)

References 63 publications

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“…Both Li and Mn leaching efficiency reached 96% at a significantly shortened time of 15 min at a 1200 W microwave power and 2450 MHz frequency, which significantly contrasted with traditional leaching methods that took several days. Zhu et al 104 reported microwave assisted DES (ChCl–EG–urea/lactic acid) leaching of Li and Co from LCO, and concluded that this reduced leaching temperature from 105 °C, and >90% of Li and Co were leached in just 4 min and 160 W. The electric field generated by microwaves induces a dipole moment in the active components, leading to an ultra-fast leaching performance.…”

Section: Application Of Dess In Libs Recyclingmentioning

confidence: 99%

Green recycling of spent Li-ion battery cathodes via deep-eutectic solvents

Wang,

Lyu,

Zeng

et al. 2024

Energy Environ. Sci.

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Section: Application Of Dess In Libs Recyclingmentioning

confidence: 99%

Green recycling of spent Li-ion battery cathodes via deep-eutectic solvents

Wang,

Lyu,

Zeng

et al. 2024

Energy Environ. Sci.

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“…Zhu et al reported that over 90% of Li and Co can be fast leached within 4 min in the ChCl–EG–urea/lactic acid DES system by using microwave‐assisted heating method. [ 18 ] By using DES, recovery and regeneration of anode graphite from spent LIBs have been also proposed as novel alternative. [ 19 ] However, DES reveals disadvantages that prevent its broad usage for the battery recycling industry.…”

Section: Introductionmentioning

confidence: 99%

The Pitfalls of Deep Eutectic Solvents in the Recycling of Lithium‐Ion Batteries

Meles Neguse,

Yoon,

Lim

et al. 2024

Energy Tech

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The exponentially increasing demand for lithium‐ion batteries and their limited lifetime lead to a significant increase in spent batteries. With the goal to address the sustainability and recyclability to minimize negative effects for the environment, an efficient process is vital to recover valuable materials from spent batteries by recycling. In this regard, deep eutectic solvents (DESs) have attracted huge interest, due to their unique ability to efficiently extract valuable metals from spent batteries, while also being rendered greener and more cost‐effective compared to current pyrometallurgy and/or hydrometallurgy. However, the DES approach also has its own set of challenges and drawbacks, which hinder the widespread use in the industry, including its restricted recyclability, high viscosity, low thermal and chemical stability, complex chemistry, as well as limited scalability. In this perspective, it is claimed that ongoing future research on the recycling of lithium‐ion batteries requires the exploration of alternative processes including modification of current hydrometallurgy processes, if the consistent improvements cannot be achieved in DES system for recycling valuable elements.

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“…Despite all the controversy associated with these DESs, recent publications informed about the use of choline chloride-based DESs in recovering valuable metals (mainly lithium and cobalt) from spent batteries [ 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Utilizing Deep Eutectic Solvents in the Recycle, Recovery, Purification and Miscellaneous Uses of Rare Earth Elements

Alguacil

2024

Molecules

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The boosted interest in using rare earth elements (REEs) in modern technologies has also increased the necessity of their recovery from various sources, including raw materials and wastes. Though hydrometallurgy plays a key role in these recovery processes, some drawbacks (apparent or not) of these processes (including the use of aggressive mineral acids, harmful extractants, and diluents, etc.) have led to the development of an environmental friendship subclass named solvometallurgy, in which non-aqueous solvents substituted to the aqueous media of the hydrometallurgical processing. Together with ionic liquids (ILs), the non-aqueous solvents chosen for these usages are the chemicals known as deep eutectic solvents (DEEs). The utilization of DEEs included the leaching of REEs from the different sources containing them and also in the separation-purification steps necessary for yielding these elements, normally oxides or salts, in the most purified form. This work reviewed the most recent literature (2023 year) about using deep eutectic solvents to recover REEs from various sources and coupling these two (DESs and REEs) to derive compounds to be used in other fields.

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Microwave-ultra-fast recovery of valuable metals from spent lithium-ion batteries by deep eutectic solvents

Cited by 19 publications

References 63 publications

Green recycling of spent Li-ion battery cathodes via deep-eutectic solvents

Green recycling of spent Li-ion battery cathodes via deep-eutectic solvents

The Pitfalls of Deep Eutectic Solvents in the Recycling of Lithium‐Ion Batteries

Utilizing Deep Eutectic Solvents in the Recycle, Recovery, Purification and Miscellaneous Uses of Rare Earth Elements

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