| 球磨对LiVPO4F的合成及性能的影响 |
| |
| 引用本文： | 钟胜奎,尹周澜,王志兴,郭华军,李新海.球磨对LiVPO4F的合成及性能的影响[J].电池,2006,36(6):449-450. |
| |
| 作者姓名： | 钟胜奎 尹周澜 王志兴 郭华军 李新海 |
| |
| 作者单位： | 1. 中南大学化学化工学院,湖南,长沙,410083
2. 中南大学冶金科学与工程学院,湖南,长沙,410083 |
| |
| 摘 要： | 通过碳热还原法合成了正极材料LiVPO4F,利用XRD、SEM和充放电测试研究了球磨对LiVPO4F的合成和电化学性能的影响,结果表明:没有球磨的样品不能合成单相的LiVPO4F;球磨1 h和2 h合成的LiVPO4F样品的首次放电比容量分别为117 mAh/g和130 mAh/g,库仑效率分别为84.8%和87.2%,50次循环后,容量衰减率分别为16.2%和14.6%。
|
| 关 键 词： | 锂离子电池 正极材料 LiVPO4F 碳热还原法 |
| 文章编号： | 1001-1579(2006)06-0449-02 |
| 修稿时间： | 2006年8月15日 |
Effects of ball milling on the synthesis and performance of LiVPO4F |
| |
| ZHONG Sheng-kui,YIN Zhou-lan,WANG Zhi-xing,GUO Hua-jun,LI Xin-hai.Effects of ball milling on the synthesis and performance of LiVPO4F[J].Battery Bimonthly,2006,36(6):449-450. |
| |
| Authors: | ZHONG Sheng-kui YIN Zhou-lan WANG Zhi-xing GUO Hua-jun LI Xin-hai |
| |
| Abstract: | The cathode material LiVPO_4F was prepared by carbon-thermal reduction method.The effects of ball milling on the synthesis and electrochemical performance of LiVPO_4F were studied by XRD,SEM and charge-discharge tests.The results showed that the single phase LiVPO_4F could not be prepared without ball milling.The initial discharge specific capacity of LiVPO_4F samples with the ball milling of 1 h and 2 h was 117 mAh/g and 130 mAh/g,the coulomb efficiency was 84.8% and 87.2%,the capacity fading rate was 16.2% and 14.6% after 50 cycles, respectively. |
| |
| Keywords: | Li-ion cell cathode material LiVPO_4F carbon-thermal reduction method |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
