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Microwave-ultra-fast Recovery of Valuable Metals from Spent Lithium-ion Batteries by Deep Eutectic Solvents by Ahui Zhu; Xinyu Bian; Weijiang Han; Yong Wen; Ke Ye; Guiling Wang; Jun Yan; Dianxue Cao; Kai Zhu; Shubin Wang is a Environmental Science article available to read on EtoBox.
What is Microwave-ultra-fast Recovery of Valuable Metals from Spent Lithium-ion Batteries by Deep Eutectic Solvents about?
The large-scale use of electric vehicles produced massive discarded lithium-ion batteries, containing many recyclable valuable metals and toxic and harmful substances. Biodegradable and recyclable deep eutectic solvent (DES) is considered a green recycling technology for spent LIBs. Herein, we proposed a microwave-enhanced approach to shorten the leaching time in the urea/lactic acid: choline chloride: ethylene glycol DES system. The dipole moments induced by urea or lactic acid on LiCoO2 surface increased over two orders of magnitude under the high electric field. Because of this, over 90 % of Li and Co can be fast leached at 4 min and 160 W in the urea/lactic acid: choline chloride: ethylene glycol DES system. Meanwhile, we established two models to explain the leaching mechanism of metal ions from their leaching kinetics and micro-level behavior, and named them dot-etching and layer-peeling processes, respectively. By further analyzing, we found that the dot-etching can be attributed to the synergistic effect of reduction and coordination, which caused the surface of leaching residues porous. The layer-peeling process depends on neutralization, and the leaching residues had a sm
Who reads Microwave-ultra-fast Recovery of Valuable Metals from Spent Lithium-ion Batteries by Deep Eutectic Solvents?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Ahui Zhu; Xinyu Bian; Weijiang Han; Yong Wen; Ke Ye; Guiling Wang; Jun Yan; Dianxue Cao; Kai Zhu; Shubin Wang
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Environmental Science (Physical Sciences)