| 三元正极废粉还原焙烧—水浸提锂过程氟磷杂质的影响 |
| |
| 引用本文： | 廖财斌,任国兴,肖松文.三元正极废粉还原焙烧—水浸提锂过程氟磷杂质的影响[J].有色金属(冶炼部分),2020(12):42-47. |
| |
| 作者姓名： | 廖财斌 任国兴 肖松文 |
| |
| 作者单位： | 长沙矿冶研究院有限责任公司,中南大学,长沙矿冶研究院有限责任公司 |
| |
| 基金项目： | 长沙市科技支撑计划项目（kq1602212）；中央企业电动车产业联盟共性技术项目（JS-211） |
| |
| 摘 要： | 针对含氟/磷杂质组分的三元正极废粉和纯三元正极粉开展还原焙烧—水浸试验，发现相同试验条件下，含杂三元正极废粉锂的浸出率明显低于纯三元正极粉，氟/磷杂质组分是影响还原焙烧—水浸提锂效果的关键因素，还原焙烧过程中，由于氟/磷的影响，正极材料中的锂部分转化为不溶于水的LiF和Li3PO4，进而损失于水浸渣中。
|
| 关 键 词： | 废旧锂离子电池 三元正极粉 还原焙烧 锂 磷 氟 |
| 收稿时间： | 2020/9/15 0:00:00 |
| 修稿时间： | 2020/9/22 0:00:00 |
Effect of Fluorine and Phosphorus Impurity on Recovery of Lithium from Spent NCM Cathode Powder by Reduction Roasting-Water Leaching Process |
| |
| Liao Caibin,Ren Guo-xing and Xiao Song-wen.Effect of Fluorine and Phosphorus Impurity on Recovery of Lithium from Spent NCM Cathode Powder by Reduction Roasting-Water Leaching Process[J].Nonferrous Metals(Extractive Metallurgy),2020(12):42-47. |
| |
| Authors: | Liao Caibin Ren Guo-xing and Xiao Song-wen |
| |
| Affiliation: | Changsha Research Institute of Mining and Metallurgy Co Ltd,,Changsha Research Institute of Mining and Metallurgy Co Ltd |
| |
| Abstract: | Spent NCM cathode powder with/without fluorine and phosphorus impurities were treated by reduction roasting-water leaching. The results show that lithium leaching efficiency in spent NCM cathode powder containing fluorine and phosphorus impurities was significantly lower than that of pure NCM cathode powder under same experimental conditions. Fluorine and phosphorus impurities are the key factors affecting lithium recovery during reduction roasting-water leaching, which can be explained by that parts of lithium in NCM cathode powder is converted into insoluble LiF and Li3PO4 during reduction roasting process. |
| |
| Keywords: | spent lithium-ion battery NCM cathode powder reduction roasting lithium phosphorus fluorine |
|
| 点击此处可从《有色金属(冶炼部分)》浏览原始摘要信息 |
|
点击此处可从《有色金属(冶炼部分)》下载全文 |
