| 自复合材料xLiFePO4·yLi3V2（PO4）3的合成及电化学性能 |
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| 引用本文： | 马平平,刘志坚,夏建华,陈宇,胡朴,卢志超,夏定国.自复合材料xLiFePO4·yLi3V2（PO4）3的合成及电化学性能[J].电化学,2012(1):31-36. |
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| 作者姓名： | 马平平 刘志坚 夏建华 陈宇 胡朴 卢志超 夏定国 |
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| 作者单位： | 中国钢研科技集团公司;北京中新联数码科技有限公司;北京大学工学院 |
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| 基金项目： | financially supported by National High Technology Research and Development Program of China(No.2008AA03Z208) |
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| 摘 要： | 用固相法合成了不同比例的xLiFePO4.yLi3V2（PO4）3复合物.XRD、SEM和电化学测试仪等分析方法表征了所有样品的特性.结果表明,样品0.95LiFePO4.0.05Li3V2（PO4）3以0.2C的充放电倍率放电时具有162.7 mAh.g-1的电化学容量.同时该样品表现出了较其它样品更优异的循环稳定性...
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| 关 键 词： | 锂离子电池 复合物 掺杂 xLiFePO4·yLi3V2(PO4)3 |
Synthesis and Electrochemical Performance of xLiFePO4·yLi3V2（PO4）3 Composites |
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| MA Ping-ping,LIU Zhi-jian,XIA Jian-hua,CHEN Yu,HU Pu,LU Zhi-chao,XIA Ding-guo.Synthesis and Electrochemical Performance of xLiFePO4·yLi3V2（PO4）3 Composites[J].Electrochemistry,2012(1):31-36. |
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| Authors: | MA Ping-ping LIU Zhi-jian XIA Jian-hua CHEN Yu HU Pu LU Zhi-chao XIA Ding-guo |
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| Institution: | 1.China Iron and Steel Research Institute Group,Beijing 100081,China;2.Beijing Central Press Union Technology Co LTD.,Beijing 100041,China;3.College of Engineering,Peking University,Beijing 100871,China) |
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| Abstract: | A series of xLiFePO4·yLi3V2(PO4)3 composites were systematically synthesized through solid state reactions by variations in the proportions of LiFePO 4 and Li3 V2(PO4)3.The properties of the prepared compounds were investigated using X-ray diffraction(XRD),scanning electron microscopy(SEM) and electrochemical measurements.The capacity of 162.7 mAh.g-1 at 0.2C rate was obtained with the relatively good cycle stability and good conductivity for 0.95LiFePO 4.0.05Li3 V2(PO4)3 due to more uniformed distributed and smaller particle sizes. |
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| Keywords: | lithium ion batteries composite doping xLiFePO4·yLi3V2(PO4)3 |
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