废旧磷酸铁锂电池再生技术研究
|
摘要
研究使用N-甲基吡咯烷酮分离废旧磷酸铁锂电池中的正极活性物质与集流体,探讨分离效率随固液比、温度和时间的变化关系,再对分离得到的磷酸铁锂活性物质使用高温固相进行再生。结果表明,60℃固液比为1 g/10 mL,反应12 min时,正极活性物质与集流体的分离效率可达90.26%;高温固相中,原料粒径在0.054 mm The separation of active materials and current collector of LiFePO4 batteries were studied, the relationships among separation efficiency, solid-liquid ratio, temperature and roasting time were investigated, and the separated active materials were regenerated by high temperature solidification. The results show that when the solid-liquid ratio is 1 g/10 mL at 60 ℃ and the reaction time is 12 min, the separation efficiency can reach 90.26%. The best process conditions of high temperature solidification is that particle size is in 0.054 mm
引文
[1]王洪彩,郑茹娟,贾铮,等.废旧锂离子电池资源化回收及再利用发展动态[J].电池工业,2013,18(z2):173-176.
[2]梁立君.废旧锂离子电池正极材料Li Fe PO4的回收及合成的研究[D].大连:大连交通大学,2012.
[3]李金辉,郑顺,熊道陵,等.废旧锂离子电池正极材料有价资源回收的方法[J].有色金属科学与工程,2013(4):29-35.
[4]宝冬梅,曹可名,肖寒,等.环境友好型锂离子电池正极材料Li FePO4的制备方法[J].材料导报,2012,26(15):67-70.
[5]李鹏涛.锂离子电池正极材料磷酸铁锂的合成与性能研究[D].武汉:武汉工程大学,2014.
[6]CHEN X,ZHOU T.Hydrometallurgical process for the recovery of metal values from spent lithium-ion batteries in citric acid media[J].Waste Manag Res,2014,32(11):1083-1093.
[7]任强,杨旸.固相法制备锂离子电池正极材料Li Fe PO4的研究进展[J].陶瓷学报,2011,32(2):307-311.
[2]梁立君.废旧锂离子电池正极材料Li Fe PO4的回收及合成的研究[D].大连:大连交通大学,2012.
[3]李金辉,郑顺,熊道陵,等.废旧锂离子电池正极材料有价资源回收的方法[J].有色金属科学与工程,2013(4):29-35.
[4]宝冬梅,曹可名,肖寒,等.环境友好型锂离子电池正极材料Li FePO4的制备方法[J].材料导报,2012,26(15):67-70.
[5]李鹏涛.锂离子电池正极材料磷酸铁锂的合成与性能研究[D].武汉:武汉工程大学,2014.
[6]CHEN X,ZHOU T.Hydrometallurgical process for the recovery of metal values from spent lithium-ion batteries in citric acid media[J].Waste Manag Res,2014,32(11):1083-1093.
[7]任强,杨旸.固相法制备锂离子电池正极材料Li Fe PO4的研究进展[J].陶瓷学报,2011,32(2):307-311.