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首页> 外文期刊>Journal of power sources >Carbon coated Li_3VO_4 microsphere: Ultrafast solvothermal synthesis and excellent performance as lithium-ion battery anode
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Carbon coated Li_3VO_4 microsphere: Ultrafast solvothermal synthesis and excellent performance as lithium-ion battery anode

机译：碳涂层Li_3VO_4微球：超快溶液合成和优异的性能作为锂离子电池阳极

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摘要

Li3VO4 is a promising anode material for next-generation lithium ion batteries. However, inferior electronic conductivity and cumbersomely preparing route limit its further development. Herein, we prepared Li3VO4 microspheres with average diameter of 1.8 mu m by solvothermal route in only 10 min. When used as anode material for the lithium ion battery, the uniform microspheres of Li3VO4 delivered a discharge capacity of 233 mA h g(-1) after 1000 cycles at 4 A g(-1). Even at a high rate of 10 A g(-1), a discharge capacity of 152 mA h g(-1) was achieved. Detail microstructure and electrochemical characterization demonstrates that the excellent performance of as-prepared anode originates from the uniform microsphere morphology and the presence of similar to 2 nm carbon substance on the surface of microsphere. More importantly, when Li3VO4 microsphere anode packages into full cell with commercial LiFePO4, three cells in series steadily light three red LEDs, implying an outstanding potential of Li3VO4 microsphere anode for practical application in lithium ion battery.
机译：Li3VO4是用于下一代锂离子电池的有前途的阳极材料。然而，劣质电子电导率和繁琐的准备途径限制其进一步的发展。在此，我们在仅10分钟内通过溶剂热途径的平均直径为1.8μm的Li3VO4微球。当用作锂离子电池的阳极材料时，Li3VO4的均匀微球在4Ag（-1）下在1000次循环后递送233mA Hg（-1）的放电容量。甚至在10Ag（-1）的高速率下，达到了152mA H（-1）的放电容量。细节微观结构和电化学表征表明，制备的阳极的优异性能来自均匀的微球形态和在微球表面上的存在与2nm碳物质相似。更重要的是，当Li3VO4微球阳极封装在具有商业Lifepo4的全牢房中，三个细胞系列稳定的三个红色LED，暗示Li3VO4微球阳极在锂离子电池中的实际应用的突出潜力。

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  • 来源
    《Journal of power sources》 |2021年第1期|229680.1-229680.10|共10页
  • 作者

    Liu Xiaoqing; Li Guangshe; Qian Peixing; Zhang Dan; Wu Jinjiang; Li Ke; Li Liping;

  • 作者单位

    Jilin Univ Coll Chem State Key Lab Inorgan Synth & Preparat Chem Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem State Key Lab Inorgan Synth & Preparat Chem Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem State Key Lab Inorgan Synth & Preparat Chem Changchun 130012 Peoples R China;

    Nanyang Normal Univ Coll Chem & Pharmaceut Engn Nanyang 473061 Peoples R China;

    Chinese Acad Sci Changchun Inst Appl Chem State Key Lab Rare Earth Resource Utilizat Changchun 130022 Peoples R China;

    Jilin Univ Coll Chem State Key Lab Inorgan Synth & Preparat Chem Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem State Key Lab Inorgan Synth & Preparat Chem Changchun 130012 Peoples R 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

    Li3VO4 microsphere; Ultrafast synthesis; Surface-tension; Electrochemical performance;

    机译：Li3VO4微球;超快合成;表面张力;电化学性能;

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