| Ce4+掺杂对LiFePO4/C正极极材料微观结构和性能的影响 |
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| 引用本文： | 侯娟,殷保祥,刘国明,张清龙,王帆.Ce4+掺杂对LiFePO4/C正极极材料微观结构和性能的影响[J].电子元件与材料,2011,30(7):32-34,38. |
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| 作者姓名： | 侯娟 殷保祥 刘国明 张清龙 王帆 |
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| 作者单位： | 石河子大学师范学院物理系生态物理重点实验室,新疆石河子,832003 |
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| 基金项目： | 国家大学生创新性实验计划资助项目(No.101075902) |
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| 摘 要： | 采用碳热还原法合成了LiFe1-2xCexPO4/C(0≤x≤0.03)锂离子电池正极材料。利用X射线衍射、扫描电镜、恒流充放电、循环伏安法等手段对Ce4+掺杂前后磷酸铁锂正极材料的结构和电化学性能进行了表征。结果表明，随着Ce4+掺入量的增加，LiiFe1-2xCerPO4/C材料的电化学性能，特别是较高倍率(5～1...
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| 关 键 词： | LiFePO4 Ce4+掺杂 正极材料 |
Effects of Ce~(4+) doping on the microstructure and properties of LiFePO_4 /C composites |
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| HOU Juan,YIN Baoxiang,LIU Guoming,ZHANG Qinglong,WANG Fan.Effects of Ce~(4+) doping on the microstructure and properties of LiFePO_4 /C composites[J].Electronic Components & Materials,2011,30(7):32-34,38. |
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| Authors: | HOU Juan YIN Baoxiang LIU Guoming ZHANG Qinglong WANG Fan |
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| Affiliation: | HOU Juan,YIN Baoxiang,LIU Guoming,ZHANG Qinglong,WANG Fan(Key Laboratory of Ecophysics of Department of Physics,Teachers College,Shihezi University,Shihezi 832003,Xinjiang Uygur Autonomous region,China) |
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| Abstract: | LiFe1-2xCexPO4/C(0≤x≤0.03) composites used as anode material of lithium battery were synthesized by the carbon thermal reduction method.The structure,morphology and electrochemical properties of the LiFe1-2xCexPO4/C composites were studied using XRD,SEM and the galvanostatic charge-discharge as well as the cyclic voltammetry method.The results demonstrate that the electrochemical properties,especially the properties at high C rate(5~10 C),of the LiFe1-2xCexPO4/C composites are improved with increasing x value.The charge-discharge performance of the LiFe0.96Ce0.02PO4/C composites is best while its discharge capacity at 10 C is 120 mAh·g-1. |
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| Keywords: | LiFePO4 Ce4 doping anode materials |
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