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首页> 外文期刊>Journal of power sources >Novel efficient synthesis of nanosized carbon coated LiMnPO_4 composite for lithium ion batteries and its electrochemical performance
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Novel efficient synthesis of nanosized carbon coated LiMnPO_4 composite for lithium ion batteries and its electrochemical performance

机译：锂离子电池纳米碳包覆LiMnPO_4复合材料的新型高效合成及其电化学性能

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摘要

An eco-efficient approach bases on a mechano-chemical liquid-phase activation technique is developed for synthesizing LiMnPO_4/C composites. The fine sized [Mn_3(PO_4)_2·xH_2O + Li_3PO_4] precursors with uniform particle size distribution are prepared, and characterized by XRD and scanning electron microscope (SEM). The in-situ carbon coated LiMnPO_4 composites are synthesized by one-step solid state reaction. The prepared LiMnPO_4/C nano-composites show a comparable rate capability with discharge specific capacity of 136.4 mAh g~(-1) at 0.05 C-rate and 118 mAh g~(-1) at 1 C-rate at room temperature. The results indicate that LiMnPO_4/C composites synthesize from this environmental friendly route shows a promising electrochemical activity as cathode material for lithium ion batteries.
机译：开发了一种基于机械化学液相活化技术的生态高效方法，用于合成LiMnPO_4 / C复合材料。制备了粒径分布均匀的细小[Mn_3（PO_4）_2·xH_2O + Li_3PO_4]前驱体，并用XRD和扫描电子显微镜（SEM）进行了表征。通过一步固相反应合成原位碳包覆的LiMnPO_4复合材料。制备的LiMnPO_4 / C纳米复合材料具有相当的速率能力，室温下在0.05 C速率下的放电比容量为136.4 mAh g〜（-1），在1 C速率下的放电比容量为118 mAh g〜（-1）。结果表明，由该环境友好途径合成的LiMnPO_4 / C复合材料作为锂离子电池的正极材料显示出良好的电化学活性。

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  • 来源
    《Journal of power sources》 |2014年第5期|146-152|共7页
  • 作者

    Jianguo Duan; Yanbing Cao; Jianbing Jiang; Ke Du; Zhongdong Peng; Guorong Hu;

  • 作者单位

    School of Metallurgy and Environment, Central South University, Changsha 410083, PR China;

    School of Metallurgy and Environment, Central South University, Changsha 410083, PR China;

    School of Metallurgy and Environment, Central South University, Changsha 410083, PR China;

    School of Metallurgy and Environment, Central South University, Changsha 410083, PR China;

    School of Metallurgy and Environment, Central South University, Changsha 410083, PR China;

    School of Metallurgy and Environment, Central South University, Changsha 410083, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Composite materials; Mechano-chemical liquid-phase activation; Electron microscopy; Electrochemical properties;

    机译：复合材料;机械化学液相活化;电子显微镜;电化学性质;

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