Ionization potential-based design of deep eutectic solvent for recycling of spent lithium ion batteries

Hua，Yunhui1,2; Sun，Yongqi2; Yan，Feng1; Wang，Shubin1; Xu，Zhenghe3; Zhao，Baojun4; Zhang，Zuotai1

2022-05-15

10.1016/j.cej.2021.133200

CHEMICAL ENGINEERING JOURNAL   影响因子和分区

1385-8947

1873-3212

Deep eutectic solvent (DES) is becoming an important alternative for green and high efficient recycling of spent lithium ion batteries (LIBs). In this study, we proposed a simple and universal approach by applying ionization potential (IP) calculation assisted with cyclic voltammetry test to assist selection of organic acid as efficient reductant in the DES for battery recycling. The reducibility of organic acid was found to have a close relationship with the IP, with organic acids of lower IP being a more preferred reductant. Based on this approach, the hydrous choline chloride-L-ascorbic acid DES was identified and verified to be efficient for metals leaching from LiNiCoMnO cathode in multiple cycles, exhibiting leaching efficiencies over 96% for Li, Mn, Co and Ni under a mild leaching condition (50℃, 1 h). The IP calculation is effective for screening reductive acids, and is also feasible for predicting reaction mechanism. Metals were effectively recovered through sequential precipitation. The deep eutectic solvent designed from IP calculation is versatile for treating various kinds of spent battery cathodes and recyclable for multiple uses, decreasing the production of secondary chemical waste and pollution.

Deep eutectic solvent Ionization potential Recycling spent lithium ion batteries

SCI ; EI

英语

第一

National Natural Science Foundation of China["22008104","51772141"] ; Shenzhen Science and Technology Innovation Committee["JCYJ20200109141642225","JCYJ20200109141437586","KQJSCX20180322151507786"] ; Basic and Applied Basic Research Foundation of Guangdong Province[2021A1515010148]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:000836160000011

ELSEVIER SCIENCE SA

20220811702944

Ascorbic acid ; Cathodes ; Chlorine compounds ; Cyclic voltammetry ; Electronic Waste ; Eutectics ; Ionization potential ; Ions ; Leaching ; Lithium-ion batteries ; Metal recovery ; Solvent extraction ; Solvents

Municipal and Industrial Wastes; Waste Treatment and Disposal:452 ; Industrial Wastes:452.3 ; Metallography:531.2 ; Physical Chemistry:801.4 ; Electrochemistry:801.4.1 ; Chemical Operations:802.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Organic Compounds:804.1 ; Atomic and Molecular Physics:931.3

ENGINEERING

2-s2.0-85125128916

Scopus

1.School of Environmental Science and Engineering,Southern University of Science and Technology (SUSTech),Shenzhen,518055,China
2.School of Chemical Engineering,The University of Queensland,Brisbane,St Lucia 4072,Australia
3.Department of Materials Science and Engineering,Southern University of Science and Technology (SUSTech),Shenzhen,518055,China
4.College of Materials,Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou,341000,China

Hua，Yunhui,Sun，Yongqi,Yan，Feng,et al. Ionization potential-based design of deep eutectic solvent for recycling of spent lithium ion batteries[J]. CHEMICAL ENGINEERING JOURNAL,2022,436.

Hua，Yunhui.,Sun，Yongqi.,Yan，Feng.,Wang，Shubin.,Xu，Zhenghe.,...&Zhang，Zuotai.(2022).Ionization potential-based design of deep eutectic solvent for recycling of spent lithium ion batteries.CHEMICAL ENGINEERING JOURNAL,436.

Hua，Yunhui,et al."Ionization potential-based design of deep eutectic solvent for recycling of spent lithium ion batteries".CHEMICAL ENGINEERING JOURNAL 436(2022).