废旧锂离子电池正极材料再生技术现状

锂离子电池因具有高能量密度、高功率、低成本、优异的循环性能和较长的循环寿命等优点，已成为大部分可移动设备的储能装置。近年来，废旧锂离子电池的数量不断增加。废旧锂离子电池正极材料的再利用成为当前研究热点。介绍了废旧锂离子电池正极材料再生的研究现状，主要介绍了溶胶-凝胶法、共沉淀法、水热法、高温固相法和碳热还原法等再生锂离子电池正极材料的方法，分析了不同方法存在的优缺点，阐述了微波加热技术在废旧锂离子正极材料再生技术中的重要性。对未来废旧锂离子电池正极材料再生技术进行展望，提出了离子交换法再生三元锂离子电池正极材料的方法，以及微波加热技术对制备锂离子电池正极材料的重要性。

Status of cathode material regeneration technology for waste lithium-ion batteries

Lithium-ion battery has become the energy storage device of most mobile devices because of its advantages of high energy density, high power, low cost, excellent cycle performance and long cycle life. In recent years, the number of spent lithium-ion batteries is increasing. Reusing waste lithium ion battery cathode material has been becoming the current hot spots, this paper introduces the waste lithium ion battery cathode material regeneration research present situation, mainly introduced the application of sol-gel method, coprecipitation method, hydrothermal method, high temperature solid phase method and carbon thermal reduction process such as regeneration method of lithium ion battery cathode material, analyzes the advantages and disadvantages of different methods, Finally, the future cathode material regeneration technology of waste lithium ion battery is prospected.