Progress of resource recovery of retired ternary lithium-ion battery cathode materials

doi:10.19799/j.cnki.2095-4239.2023.0517

Abstract

Abstract:

Achieving effective recovery and reuse of valuable metal components in the cathode materials of used ternary lithium-ion batteries can promote the stable development of electrochemical energy storage and new energy vehicle business, and realise energy recycling and reuse. At present, the recycling of cathode materials for ternary lithium-ion batteries faces the key problems of lack of mature recycling process and imperfect reuse system. This paper reviews the research progress of resourceful recycling and reuse of cathode materials of used ternary lithium-ion batteries by exploring the recent related literature, and discusses the necessity of recycling of cathode materials of used ternary lithium-ion batteries from the perspectives of resources and environment. For the pretreatment methods of retired lithium-ion batteries, the discharge, disassembly and separation processes are highlighted; for the obtained used ternary cathode materials, the working principles, research status and advantages and disadvantages of the recovery processes such as pyrometallurgical smelting and wet leaching of valuable metals are focused on; for the regeneration strategies of ternary cathode materials, the effective methods of direct regeneration of cathode materials based on leach solution are highlighted, and the possible problems and challenges facing the recycling processes of used For the regeneration strategy of ternary cathode materials, it focuses on the effective method of direct regeneration of cathode materials based on leaching solution, and looks forward to the possible problems and challenges in the future recycling process of waste used ternary lithium-ion battery. The comprehensive analyses show that suitable pretreatment, recovery and regeneration strategies provide important reference value for the green, efficient and low-cost reuse of valuable metals in used ternary lithium-ion batteries.

Key words: recycling of retired batteries, pre-treatment process, element extraction, cathode material regeneration

Danyang ZHAO, Xiang ZHANG, Fan XU, Yanwei SUI. Progress of resource recovery of retired ternary lithium-ion battery cathode materials[J]. Energy Storage Science and Technology, 2023, 12(10): 3087-3098.

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