TY - JOUR
T1 - Organic Electrolytes Recycling From Spent Lithium-Ion Batteries
AU - Zhang, Ruihan
AU - Shi, Xingyi
AU - Esan, Oladapo Christopher
AU - An, Liang
N1 - Funding Information:
This work was fully supported by a grant from the National Natural Science Foundation of China (No. 52022003).
Publisher Copyright:
© 2022 The Authors. Global Challenges published by Wiley-VCH GmbH.
PY - 2022/12
Y1 - 2022/12
N2 - Lithium-ion batteries (LIBs) are regarded to be the most promising electrochemical energy storage device for portable electronics as well as electrical vehicles. However, due to their limited-service life, tons of spent LIBs are expected to be produced in the recent years. Suitable recycling technology is therefore becoming more and more important as improper treatment of spent LIBs, especially the aged organic electrolyte, can cause severe environmental pollution and threats to human health. The organic solvents and high concentration of lithium salts in aged electrolytes are always sensitive toward water and air, which would easily hydrolyze and decompose into toxic fluorine-containing compounds, leading to severe fluorine pollution of the surrounding environment. Hence, recycling aged electrolytes from spent LIBs is an efficient way to avoid this potential risk to the environment. However, several issues inhibit the realization of electrolyte recycling, including the volatile, inflammable, and toxic nature of the electrolytes, the difficulty to extract electrolytes from the electrodes and separators, and various electrolyte compositions inside LIBs from different applications and companies. Herein, the current progress in recycling methods for aged electrolytes from spent LIBs is summarized and perspectives on future development of electrolyte recycling are presented.
AB - Lithium-ion batteries (LIBs) are regarded to be the most promising electrochemical energy storage device for portable electronics as well as electrical vehicles. However, due to their limited-service life, tons of spent LIBs are expected to be produced in the recent years. Suitable recycling technology is therefore becoming more and more important as improper treatment of spent LIBs, especially the aged organic electrolyte, can cause severe environmental pollution and threats to human health. The organic solvents and high concentration of lithium salts in aged electrolytes are always sensitive toward water and air, which would easily hydrolyze and decompose into toxic fluorine-containing compounds, leading to severe fluorine pollution of the surrounding environment. Hence, recycling aged electrolytes from spent LIBs is an efficient way to avoid this potential risk to the environment. However, several issues inhibit the realization of electrolyte recycling, including the volatile, inflammable, and toxic nature of the electrolytes, the difficulty to extract electrolytes from the electrodes and separators, and various electrolyte compositions inside LIBs from different applications and companies. Herein, the current progress in recycling methods for aged electrolytes from spent LIBs is summarized and perspectives on future development of electrolyte recycling are presented.
KW - battery recycling
KW - carbon dioxide extraction
KW - electrolyte recycling
KW - global challenges
KW - organic extraction
UR - http://www.scopus.com/inward/record.url?scp=85144147356&partnerID=8YFLogxK
U2 - 10.1002/gch2.202200050
DO - 10.1002/gch2.202200050
M3 - Review article
AN - SCOPUS:85144147356
SN - 2056-6646
VL - 6
JO - Global Challenges
JF - Global Challenges
IS - 12
M1 - 2200050
ER -