废锂离子电池石墨负极材料利用处理技术研究进展
Research advances on the utilization and disposal of graphite anode materials from spent lithium-ion batteries
废锂离子电池石墨负极材料利用处理技术研究进展 |
| 龙立芬, 张西华, 姚沛帆, 李明杰, 王景伟 |
|
Research advances on the utilization and disposal of graphite anode materials from spent lithium-ion batteries |
| Lifen LONG, Xihua ZHANG, Peifan YAO, Mingjie LI, Jingwei WANG |
| 图5 (a) 湿法冶金利用水浸出回收石墨模型；(b)～(c)分别是水浸出后得到的再生石墨的XRD图和电化学性能表征图；(d)～(e)分别是废锂离子电池负极石墨的SEM图和盐酸浸出得到的再生石墨SEM图；(f)～(g)是(e)的电化学性能表征图；(h)用亚临界二氧化碳和乙腈辅助处理电解质后热处理得到的再生石墨SEM图；(i)以(h)方法回收的再生石墨恒流放电容量和库仑效率曲线图[ |
| Fig. 5 (a) Hydrometallurgy using water leaching to recover graphite model, RG is the reclaimed graphite; (b)-(c) are the XRD and electrochemical performance characterizations of the reclaimed graphite after water leaching, respectively; (d)-(e) are respectively SEM images of waste cathode graphite of lithium ion battery and SEM images of reclaimed graphite obtained by hydrochloric acid leaching; (f)-(g) are electrochemical characterization diagrams of (e); (h) SEM images of reclaimed graphite obtained after heat treatment of electrolyte with subcritical carbon dioxide and acetonitrile; (i) Curve of the constant discharge capacity and coulomb efficiency of the reclaimed graphite recovered by (h) method[ |
|
|