Technology for recycling and regenerating graphite from spent lithium-ion batteries

doi:10.1016/j.cjche.2021.09.014

Abstract

Abstract: With the annual increase in the amount of lithium-ion batteries (LIBs), the development of spent LIBs recycling technology has gradually attracted attention. Graphite is one of the most critical materials for LIBs, which is listed as a key energy source by many developed countries. However, it was neglected in spent LIBs recycling, leading to pollution of the environment and waste of resources. In this paper, the latest research progress for recycling of graphite from spent LIBs was summarized. Especially, the processes of pretreatment, graphite enrichment and purification, and materials regeneration for graphite recovery are introduced in details. Finally, the problems and opportunities of graphite recycling are raised.

Key words: Spent lithium-ion batteries, Graphite, Anode materials, Recycle

摘要： With the annual increase in the amount of lithium-ion batteries (LIBs), the development of spent LIBs recycling technology has gradually attracted attention. Graphite is one of the most critical materials for LIBs, which is listed as a key energy source by many developed countries. However, it was neglected in spent LIBs recycling, leading to pollution of the environment and waste of resources. In this paper, the latest research progress for recycling of graphite from spent LIBs was summarized. Especially, the processes of pretreatment, graphite enrichment and purification, and materials regeneration for graphite recovery are introduced in details. Finally, the problems and opportunities of graphite recycling are raised.

关键词: Spent lithium-ion batteries, Graphite, Anode materials, Recycle

Chenxing Yi, Lijie Zhou, Xiqing Wu, Wei Sun, Longsheng Yi, Yue Yang. Technology for recycling and regenerating graphite from spent lithium-ion batteries[J]. Chinese Journal of Chemical Engineering, 2021, 39(11): 37-50.

Chenxing Yi, Lijie Zhou, Xiqing Wu, Wei Sun, Longsheng Yi, Yue Yang. Technology for recycling and regenerating graphite from spent lithium-ion batteries[J]. 中国化学工程学报, 2021, 39(11): 37-50.

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