有色设备

Developing new energy vehicles (NEV) is an important measure to achieve the goal of “Double Carbon”. As the major power source of NEV, ternary lithium ion batteries have been increased by years in both production and sales, which leads to an explosive generation of used ternary lithium ion batteries. The recycle of used ternary lithium ion batteries has multiple benefits in terms of resource, environmental protection, economy and so on. In this paper, the research progress in recent years on the recycle of used ternary lithium ion batteries is introduced, including the pre-treatment and recycling technologies of these batteries. The recycling technologies include pyrometallurgical process, hydrometallurgical process, direct regeneration, etc. The merits and defects of these technologies are analyzed and the developmental direction of recycling spent ternary material is expected.