| 新型锂离子电池负极材料Li1.1VO2的合成和电化学性能 |
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| 引用本文： | 陈晗,刘建华,向楷雄,龚文强,张淑英.新型锂离子电池负极材料Li1.1VO2的合成和电化学性能[J].株洲工学院学报,2011(3):21-24. |
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| 作者姓名： | 陈晗 刘建华 向楷雄 龚文强 张淑英 |
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| 作者单位： | 湖南工业大学冶金工程学院,湖南株洲412007 |
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| 基金项目： | 湖南省自然科学基金资助项目（09JJ5010） |
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| 摘 要： | 采用高温固相反应法合成了新型锂离子电池负极材料Li1.1VO2。用X射线衍射仪、扫描电子显微镜和恒电流充放电法研究了不同温度下合成的Li1.1VO2试样的结构、形貌和电化学性能。实验结果表明：1 100℃下合成的Li1.1VO2试样结构完整、颗粒大小均匀,具有最佳的电化学性能。在0.1C、1C倍率下,放电容量分别为313.2,210.5 mA.h/g;在1C倍率下,经过50次循环后,放电容量保持率高达95.45%。
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| 关 键 词： | 锂离子电池 负极材料 Li1.1VO2 电化学性能 |
Synthesis and Electrochemical Performance of Lithium-Ion Battery Anode Materials of Li1.1VO2 |
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| Chen Han,Liu Jianhua,Xiang Kaixiong,Gong Wenqiang,Zhang Shuying.Synthesis and Electrochemical Performance of Lithium-Ion Battery Anode Materials of Li1.1VO2[J].Journal of Zhuzhou Institute of Technology,2011(3):21-24. |
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| Authors: | Chen Han Liu Jianhua Xiang Kaixiong Gong Wenqiang Zhang Shuying |
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| Affiliation: | (School of Metallurgy Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China) |
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| Abstract: | New Li1.1VO2 anode materials were synthesized successfully by high temperature solid-state reaction.The microstructure,morphology and electrochemical performance of Li1.1VO2 synthesized under various temperature were investigated by X-ray diffraction,scanning electron microscopic and galvanostatic charge and discharge tests.The experimental results show that Li1.1VO2 synthesized at 1 100 ℃ possesses perfect microstructure,uniform grains and the best electrochemical performance.The discharge capacities are 313.2 and 210.5 mA·h/g at 0.1 C and 1 C,respectively.The retention of discharge capacity is 94.45% at 1C rate after 50 cycles. |
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| Keywords: | lithium ion battery anode materials Li1 1VO2 electrochemical performance |
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