Title | Efficient separation of electrode active materials and current collector metal foils from spent lithium-ion batteries by a green deep eutectic solvent |
Author | |
Corresponding Author | Zhang, Zuotai |
Publication Years | 2022-09-01
|
DOI | |
Source Title | |
ISSN | 1463-9262
|
EISSN | 1463-9270
|
Abstract | Electrode material separation is an essential element for recycling spent lithium-ion batteries (LIBs), and the key is to decompose/remove the organic polymer binder that is usually polyvinylidene fluoride (PVDF). The density functional theory calculation is used to predict a suitable deep eutectic solvent (DES) for degrading the PVDF binder as required for the effective separation of the electrode active materials from current collector foils. The potassium carbonate-ethylene glycol DES was thus identified as an efficient DES for electrode material separation. Investigation of the molecular reaction mechanism revealed that it was the carbonate ions that reacted with the PVDF polymer chains and caused the degradation of the polymer, leading to effective separation. The electrode materials could be completely separated under mild reaction conditions (100 degrees C, 20 min), and the DES could be recovered and reused for multiple cycles. The separated electrode materials all had high purities and their crystal structures remained unchanged. The green DES developed in this study provides a highly efficient and environmentally friendly pathway for the pretreatment of spent LIBs. |
URL | [Source Record] |
Indexed By | |
Language | English
|
SUSTech Authorship | First
; Corresponding
|
Funding Project | National Science Fund for Distinguished Young Scholars[52225407]
; Shenzhen Science and Technology Innovation Committee["JCYJ20200109141437586","JCYJ20200109141227141","KCXFZ20211020165004006"]
|
WOS Research Area | Chemistry
; Science & Technology - Other Topics
|
WOS Subject | Chemistry, Multidisciplinary
; Green & Sustainable Science & Technology
|
WOS Accession No | WOS:000863732600001
|
Publisher | |
EI Accession Number | 20224413039463
|
EI Keywords | Density functional theory
; Electrodes
; Ethylene
; Ethylene glycol
; Eutectics
; Fluorine compounds
; Ions
; Lithium-ion batteries
; Organic polymers
; Potash
|
ESI Classification Code | Metallography:531.2
; Chemical Operations:802.3
; Organic Compounds:804.1
; Inorganic Compounds:804.2
; Organic Polymers:815.1.1
; Probability Theory:922.1
; Atomic and Molecular Physics:931.3
; Quantum Theory; Quantum Mechanics:931.4
|
ESI Research Field | CHEMISTRY
|
Data Source | Web of Science
|
Citation statistics |
Cited Times [WOS]:4
|
Document Type | Journal Article |
Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/405981 |
Department | School of Environmental Science and Engineering 工学院_材料科学与工程系 |
Affiliation | 1.Southern Univ Sci & Technol SUSTech, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China 2.Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia 3.Southern Univ Sci & Technol SUSTech, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China 4.Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Ganzhou 341000, Peoples R China |
First Author Affilication | School of Environmental Science and Engineering |
Corresponding Author Affilication | School of Environmental Science and Engineering |
First Author's First Affilication | School of Environmental Science and Engineering |
Recommended Citation GB/T 7714 |
Hua, Yunhui,Xu, Zhenghe,Zhao, Baojun,et al. Efficient separation of electrode active materials and current collector metal foils from spent lithium-ion batteries by a green deep eutectic solvent[J]. GREEN CHEMISTRY,2022.
|
APA |
Hua, Yunhui,Xu, Zhenghe,Zhao, Baojun,&Zhang, Zuotai.(2022).Efficient separation of electrode active materials and current collector metal foils from spent lithium-ion batteries by a green deep eutectic solvent.GREEN CHEMISTRY.
|
MLA |
Hua, Yunhui,et al."Efficient separation of electrode active materials and current collector metal foils from spent lithium-ion batteries by a green deep eutectic solvent".GREEN CHEMISTRY (2022).
|
Files in This Item: | There are no files associated with this item. |
|
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment