Inorganic Chemicals Industry ›› 2024, Vol. 56 ›› Issue (12): 79-87.doi: 10.19964/j.issn.1006-4990.2024-0060

• Reviews and Special Topics • Previous Articles     Next Articles

Advances in regeneration processes of cathode materials for spent power batteries

GE Jianhua1,2,3(), XIE Minyan1, OUYANG Quansheng1,2,3(), SHAO Jiaojing3,4()   

  1. 1.Advanced Batteries and Materials Engineering Research Center,Guizhou Light Industry Technical College,Guiyang 561113,China
    2.Provincial Collaborative Innovation Center of Used Power Batteries Recycling,Guiyang 561113,China
    3.Graphene Materials Engineering Research Center of Guizhou Colleges and Universities,Guiyang 561113,China
    4.School of Materials and Metallurgy,Guizhou University,Guiyang 550025,China
  • Received:2024-01-29 Online:2024-12-10 Published:2024-04-02
  • Contact: OUYANG Quansheng, SHAO Jiaojing E-mail:gejianhua15@mails.ucas.ac.cn;qsouyang@163.com;shaojiao_jing@163.com

Abstract:

In the past decade,electric vehicles have seen significant development.Based on the life assessment of power batteries,there will be numerous end-of-life batteries.On the one hand,the regeneration of spent batteries can avoid environmental pollution,and on the other hand,it can reduce the cost of raw materials.Common recycling processes include hydrometallurgy,pyrometallurgy,direct regeneration,and so on.Hydrometallurgy has a high recovery rate and low operating temperature,which is widely used in China.Pyrometallurgy can eliminate the pretreatment process,but there is a certain waste of resources and high energy consumption.In recent years,direct regeneration has seen great progress,which can be applied without destroying the original structure of the cathode material,so it is a promising recycling method.However,to further increase resource recovery rates,reduce costs and pollution,the above methods need to be further improved.The advances in regeneration of cathode materials of spent power batteries in recent years were summarized,the challenges were analyzed,and the development trends were proposed.

Key words: spent power battery, cathode materials, hydrometallurgical recycling, pyrometallurgical recycling, direct regeneration

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