中文版 | English
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 AuthorZhang, 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
SCI ; EI
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 TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/405981
DepartmentSchool 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 AffilicationSchool of Environmental Science and Engineering
Corresponding Author AffilicationSchool of Environmental Science and Engineering
First Author's First AffilicationSchool 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.
Related Services
Fulltext link
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Export to Excel
Export to Csv
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[Hua, Yunhui]'s Articles
[Xu, Zhenghe]'s Articles
[Zhao, Baojun]'s Articles
Baidu Scholar
Similar articles in Baidu Scholar
[Hua, Yunhui]'s Articles
[Xu, Zhenghe]'s Articles
[Zhao, Baojun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hua, Yunhui]'s Articles
[Xu, Zhenghe]'s Articles
[Zhao, Baojun]'s Articles
Terms of Use
No data!
Social Bookmark/Share
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.