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首页> 外文期刊>Materials Chemistry and Physics >A new approach to LiFePO_4/C synthesis: The use of complex carbon source without ball milling
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A new approach to LiFePO_4/C synthesis: The use of complex carbon source without ball milling

机译：LiFePO_4 / C合成的新方法：在不进行球磨的情况下使用复杂的碳源

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摘要

A new approach to synthesize LiFePO_4/C composite without the need of ball milling was developed by using complex carbon source. The esterifkation reaction between citric acid and sucrose during the drying process fosters the well-mixing of precursor materials, which contributes to the small particle size, porous network, large surface area and good electrochemical performances of LiFePO_4/C composite. The ratio of sucrose to citric acid affects the morphology and electrochemical performance of LiFePO_4/C. This study offers a new method to optimize the morphology of LiFePO_4/C composite by controlling the interaction between different precursors during precursor treatment, such as the esterification reaction between carboxylic acid and sugar. The method developed is simple, requires inexpensive starting materials and the final product gives good electrochemical performance; therefore, it may be of great interest in the mass production of LiFePO_4/C cathode material.
机译：通过使用复杂的碳源，开发了一种无需球磨合成LiFePO_4 / C复合材料的新方法。柠檬酸和蔗糖在干燥过程中的酯化反应促进了前体材料的充分混合，这有助于LiFePO_4 / C复合材料的小粒径，多孔网络，大表面积和良好的电化学性能。蔗糖与柠檬酸的比例影响LiFePO_4 / C的形貌和电化学性能。这项研究提供了一种通过控制前体处理过程中不同前体之间的相互作用（例如羧酸和糖之间的酯化反应）来优化LiFePO_4 / C复合材料形态的新方法。所开发的方法简单，需要廉价的起始原料，最终产物具有良好的电化学性能。因此，在大规模生产LiFePO_4 / C阴极材料方面可能会引起极大的兴趣。

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  • 来源
    《Materials Chemistry and Physics》 |2012年第1期|573-577|共5页
  • 作者

    Jianhe Hong; Yanfen Wang; Gang He; Mingzhong He;

  • 作者单位

    Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, PR China;

    Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, PR China;

    Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, PR China;

    Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, 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

    inorganic compounds; sintering; electron microscopy; electrochemical properties;

    机译：无机化合物烧结;电子显微镜;电化学性能;

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