A novel strategy of lithium recycling from spent lithium-ion batteries using imidazolium ionic liquid

Hongshuai Zheng; Jiaqi Huang; Tao Dong; Yifan Sha; Haitao Zhang; Jie Gao; Suojiang Zhang

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A novel strategy of lithium recycling from spent lithium-ion batteries using imidazolium ionic liquid

Separation Science and Engineering | Updated：2026-01-06

- A novel strategy of lithium recycling from spent lithium-ion batteries using imidazolium ionic liquid
- Chinese Journal of Chemical Engineering Vol. 41, Issue 1, Pages: 246-251(2022)
- Affiliations：
  
  1. CAS Key Laboratory of Green Process and Engineering, Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex Systems, Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences,Beijing,China,100190
  2. Henan Institute of Advanced Technology, Zhengzhou University,Zhengzhou,China,450002
  3. Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences,Ningbo,China,315201
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2022
- Accepted：
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Hongshuai Zheng, Jiaqi Huang, Tao Dong, Yifan Sha, Haitao Zhang, Jie Gao, Suojiang Zhang. A novel strategy of lithium recycling from spent lithium-ion batteries using imidazolium ionic liquid[J]. Chinese Journal of Chemical Engineering, 2022, 41(1): 246-251.
DOI：

Hongshuai Zheng, Jiaqi Huang, Tao Dong, Yifan Sha, Haitao Zhang, Jie Gao, Suojiang Zhang. A novel strategy of lithium recycling from spent lithium-ion batteries using imidazolium ionic liquid[J]. Chinese Journal of Chemical Engineering, 2022, 41(1): 246-251. DOI：

摘要

Abstract

In light of the increasing demand for environmental protection and energy conservation

the recovery of highly valuable metals

such as Li

and Ni

from spent lithium-ion batteries (LIBs) has attracted wide-spread attention. Most conventional recycling strategies

however

suffer from a lack of lithium recycling

although they display high efficiency in the recovery of Co and Ni. In this work

we report an efficient extraction process of lithium from the spent LIBs by using a functional imidazolium ionic liquid. The extraction efficiency can be reached to 92.5% after a three-stage extraction

while the extraction efficiency of Ni-Co-Mn is less than 4.0%. The new process shows a high selectivity of lithium ion. FTIR spectroscopy and ultraviolet are utilized to characterize the variations in the functional groups during extraction to reveal that the possible extraction mechanism is cation exchange. The results of this work provide an effective and sustainable strategy of lithium recycling from spent LIBs.

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