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锂离子电池正极材料LiMn_(0.95)Zn_(0.05)PO_4/C的固相合成及电化学性能 被引量：3

Synthesis and electrochemical properties of LiMn_(0.95)Zn_(0.05)PO_4/C cathode materials for Li-ion battery by a facile solid-state method
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摘要 以PEG为新型碳源,采用简单固相法合成了锌离子掺杂的锂离子电池正极材料LiMn0.95Zn0.05PO4/C。采用XRD和电化学测试分别研究了预分解温度对LiMn0.95Zn0.05PO4/C结构及性能的影响。实验结果表明预分解温度为500℃合成的LiMn0.95Zn0.05PO4/C具有最好的放电性能,0.02 C首次放电比容量可以达到131.7 mA.h.g-1,达到文献较好水平。考察了最佳条件合成样品的倍率性能和循环伏安特性。 LiMn0.95Zn0.05PO4/C was synthesized using PEG as a new carbon source by a simple solid-state method.Structure and performance of LiMn0.95Zn0.05PO4/C were characterized by x-ray diffraction（XRD） and electrochemical measurements respectively.The results indicated that the sample at 500℃ for decomposition temperatures had the best discharge performance.The initial discharge capacity at 0.02 C was 131.7mA·h·g-1,which is compared to the reported results in the literatures.Furthermore,rate performance and cyclic voltammetry of the sample prepared at optimum conditions had been investigated in this paper.
作者 陈亚芳 王又容
机构地区 武汉工业学院化学与环境工程学院
出处 《武汉工业学院学报》 CAS 2010年第3期29-33,共5页 Journal of Wuhan Polytechnic University
关键词 锂离子电池 锌离子掺杂 LIMNPO4 电化学性能 lithium ion battery Zn-ion doped LiMnPO4 electrochemical performance
分类号 TM912 [电气工程—电力电子与电力传动]
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参考文献14

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同被引文献99

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武汉工业学院学报
2010年 第3期

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