| 锰掺杂对纯化磷酸铁制备磷酸铁锂电池正极材料的影响 |
| 点此下载全文 |
| 引用本文：李光明,刘小瑜,张家玮,吴敏昌,乔永民,王利军.锰掺杂对纯化磷酸铁制备磷酸铁锂电池正极材料的影响[J].上海第二工业大学(中文版),2018,(4):263-267 |
| 摘要点击次数: 888 |
| 全文下载次数: 624 |
|
| 基金项目:上海第二工业大学研究生项目基金(EGD16YJ0024), 浦东新区科技发展基金创新资金(PKJ2014-Z03), 上海第二工
业大学材料科学与工程重点学科(XXKZD1601), 上海市教委曙光人才计划(09SG54) 资助 |
|
| 中文摘要:以废弃磷化渣为原料, 利用酸液水热过滤法对磷化渣提纯。将所得纯度较高的磷酸铁为铁源, 通过加入锰
盐来制备含有掺杂锰元素的前驱体, 经过高温还原后可得到掺杂锰元素的磷酸亚铁锂/碳电池正极材料。利用X 射
线衍射仪、X 射线荧光光谱仪、扫描电子显微镜和LAND 测试仪对不同组成的磷酸铁锂/碳电池正极材料的颗粒形
貌、物相及扣式电池的电化学性能进行表征。结果表明: 掺杂锰元素的磷酸亚铁锂/碳材料在大倍率下仍能保持较高
的容量保持率, 这对于制作大倍率电池具有重要的意义。 |
| 中文关键词:磷化渣 磷酸铁锂 正极材料 离子掺杂 |
| |
| Effect of Manganese Doping on Preparation of Cathode Materials forPurification of Lithium Iron Phosphate Battery |
|
|
| Abstract:The wasted phosphating slag as raw material was purified by acid hydrothermal filtration method. Used the obtained highpurity
iron phosphate as an iron source, a manganese-containing precursor was prepared by adding a manganese salt. After reduction
at high temperature, a lithium iron phosphate/carbon battery cathode material doped with manganese can be obtained. The particle
morphology, phase and electrochemical properties of the lithium iron phosphate/carbon battery cathode materials with different compositions
were characterized by x-ray diffractometer, energy dispersive x-ray diffraction, scanning electron microscope and LAND tester.
The results show that the lithium iron phosphate/carbon material doped with manganese can maintain good capacity retention rate under
large magnification, which is of great significance for making large rate batteries. |
| keywords:phosphate slag lithium iron phosphate cathode material ion doping |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|