基于臭氧化法的磷酸铁锂正极材料与集流体 高效分离技术研究  

High-Efficiency Separation of Spent Lithium Iron Phosphate Cathode Material and Current Collector Based on Ozonation

作　　者：李帅波 陈英豪 刘星雨 盛博宇 蒋龙进 胡磊 LI Shuaibo;CHEN Yinghao;LIU Xingyu;SHENG Boyu;JIANG Longjin;HU Lei(Hefei University,Hefei 230601,China;Anhui Chaoyue Environmental Protection Technology Co.,Ltd.,Chuzhou 239001,Anhui,China)

机构地区：[1]合肥大学,合肥230601 [2]安徽超越环保科技股份有限公司,安徽滁州239001

出　　处：《有色金属（冶炼部分）》2025年第1期119-125,171,共8页Nonferrous Metals（Extractive Metallurgy)

基　　金：2022年安徽省科技重大专项(2022e03020004);2022年安徽省教育厅自然重点项目(2022AH051788)。

摘　　要：探讨了酸性溶液单独以及与臭氧协同作用对磷酸铁锂正极材料分离效果的影响。引入特定浓度的臭氧能有效诱发过氧化氢(H_(2)O_(2))的产生,赋予其极强的氧化能力,进而能够与聚偏氟乙烯(PVDF)结构中的氟基团发生键合反应,形成含氢氟酸(HF)的化合物,使PVDF失去原有的黏结性,更有利于活性材料的高效分离。与传统的回收手段相比,这种新型的臭氧化方法不仅操作简便、安全性高,还具有显著的环保优势和成本效益。The effect of acid solution alone and synergistic with ozone on the separation of lithium iron phosphate cathode material was discussed.The introduction of a specific concentration of ozone can effectively induce the generation of hydrogen peroxide(H_(2)O_(2)),giving it a strong oxidation ability,and then it can bond with the fluorine groups in the structure of polyvinylidene fluoride(PVDF)to form a compound containing hydrofluoric acid(HF),so that PVDF loses its original bonding property,and is more conducive to the efficient separation of active materials.Compared with traditional recycling methods,this new ozonization method is not only simple and safe,but also has significant environmental advantages and cost effectiveness.

关 键 词：废旧磷酸铁锂 活性材料分离 酸溶液 臭氧氧化 环保 

分 类 号：TF803[冶金工程—有色金属冶金]