期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 406, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2020.124332
关键词
Spent lithium-ion battery; Pretreating; Recycling; Physical technology
资金
- Fundamental Research Funds for the Central Universities [2020QN53]
- Shanghai Tongji Gao Tingyao Environmental Science and Technology Development Foundation
The recycling of spent lithium-ion batteries has been increasingly important due to environmental concerns and economic value. Technologies used in the pretreating process play a crucial role in achieving efficient recycling and laying the foundation for subsequent metallurgical processes. Collaboration of multiple technologies is key to successful pretreatment and overall recycling efforts.
In recent years, the amount of spent lithium-ion batteries (LIBs) increase sharply due to the promotion of new energy vehicles and the limited service life. Recycling of spent LIBs has attracted much attention because of the serious environmental pollution and high economic value. Although some established techniques have been presented in spent LIBs recycling process, but most of them focus on cathode material recycling due to its high economic value. Therefore, preparation of high purity cathode material by a proper pretreating technology is an important procedure. In this paper, the technologies used in the pretreating process of spent LIBs are summarized systematically from three main points of discharging procedure, liberation, and separation. The collaborative application of multi-technologies is the key to realize efficient pretreating process, which can lay the foundation for the subsequent metallurgical process. In addition, an alternative pretreating flowchart of spent LIBs is proposed based on the multi-process collaboration. Pretreating procedures in this process are mainly based on the physical property difference, and they include Discharging-Shredding-Crushing-Sieving-Separation.
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