Inorganic Chemicals Industry ›› 2023, Vol. 55 ›› Issue (7): 32-37.doi: 10.19964/j.issn.1006-4990.2022-0487

• Reviews and Special Topics • Previous Articles     Next Articles

Overview of recycling and utilization process of waste ternary lithium-ion power batteries

YU Hui1(), WANG Yubin1, LIAO Zhejun1,2, YANG Yunguang1,2   

  1. 1. Ningde Brunp Recycling Technology Co. ,Ltd. ,Ningde 355200,China
    2. Guangdong Brunp Recycling Technology Co. ,Ltd. ,Foshan 528137,China
  • Received:2022-08-17 Online:2023-07-10 Published:2023-07-13

Abstract:

In the context of energy crisis and greenhouse effect,lithium-ion batteries are widely used in power batteries and energy storage.The service life of lithium-ion battery is only 3~5 years.After that,the battery will not meet the service requirements and needs to be decommissioned.However,the precious metals in ternary lithium-ion power batteries are much higher than the corresponding ore raw materials,so recycling the precious metals can not only alleviate the resource problems,but also protect the environment.The utilization process of waste ternary lithium ion power batteries was reviewed,including the cascade utilization,wet recovery of precious metals and regeneration process.The wet recovery was pretreating in the form of discharge and crushing,and then leaching with inorganic acid and reducing agent,and then removing impurities through chemical precipitation and similar phase solution principle,and then resynthesizing precursor through regeneration technology,and finally generating cathode materials through sintering.The advantages and disadvantages of existing application technologies were analyzed.The future development of recycling technology should be green,low-cost and environmentally friendly.

Key words: Lithium ion battery, ternary battery, step utilization, recycling and regeneration

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