Recycling of LiNi1/3Co1/3Mn1/3O2 cathode materials from spent lithium-ion batteries using mechanochemical activation and solid-state sintering
Recycling of LiNi1/3Co1/3Mn1/3O2 cathode materials from spent lithium-ion batteries using mechanochemical activation and solid-state sintering
复制标题
利用机械化学活化和固态烧结从废旧锂离子电池中回收LiNi1/3Co1/3Mn1/3O2正极材料
DOI：
10.1016/j.wasman.2018.11.034
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发表时间：
2019
期刊：
影响因子：
8.1
通讯作者：
Zhi Sun
中科院分区：
文献类型：
--
作者：
Xiangqi Meng;Jie Hao;Hongbin Cao;Xiao Lin;Pengge Ning;Xiaohong Zheng;Junjun Chang;Xihua Zhang;Bao Wang;Zhi Sun
2016年锂离子电池产量约为91亿套，预计将继续增长。这一事实引发了含有有价值和危险的金属的废阴极材料的产生。与锂离子电池的生命周期可持续性相对应的它们的回收已经引起了极大的关注。然而，大多数回收废旧锂离子电池的技术都依赖于冶金工艺，其中二次污染不可避免。本研究展示了一种通过机械化学活化和固态烧结方法直接再生LiNi1−x− yCoxMnyO2正极材料的方法，该方法可以恢复层状结构并改善锂离子扩散，而不会引入额外的杂质。通过了解烧结温度的影响，可以得到直接再生的正极材料的电化学性能明显改善的最佳条件。因此，本研究证明了以最小的化学消耗直接再生含镍废阴极材料的可能性。
The production of lithium-ion battery is around 9100 million sets in 2016 and is believed to further increase consecutively. This fact triggers the generation of spent cathode materials which contain metals of both valuable and hazardous. Their recycling corresponding to life cycle sustainability of lithium-ion battery has attracted significant attention. However, most technologies for recycling waste lithium-ion batteries are dependent on metallurgical based processes where secondary pollution is inevitable. This research demonstrates a process to directly regenerate LiNi1−x−yCoxMnyO2cathode material by incorporating methods of mechanochemical activation and solid-state sintering, which can restore the layered structure and improve the lithium ion diffusion without introducing extra impurities. By understanding the effects of sintering temperature, the optimal conditions for direct regeneration of cathode materials with obvious improvement on electrochemical performance can be obtained. As a result, this research proves the possibility of direct regeneration of nickel-containing waste cathode materials with minimized chemical consumption.