首页> 中文期刊> 《中国科学》 >Facile synthesis of hollow Ti2Nb10O29 microspheres for high-rate anode of Li-ion batteries

Facile synthesis of hollow Ti2Nb10O29 microspheres for high-rate anode of Li-ion batteries

         

摘要

Titanium niobium oxides emerge as promising anode materials with potential for applications in lithium ion batteries with high safety and high energy density.However,the innate low electronic conductivity of such a composite oxide seriously limits its practical capacity,which becomes a serious concern especially when a high rate charge/discharge capability is expected.Here,using a modified template-assisted synthesis protocol,which features an in-situ entrapment of both titanium and niobium species during the formation of polymeric microsphere followed by a pyrolysis process,we succeed in preparing hollow microspheres of titanium niobium oxide with high efficiency in structural control.When used as an anode material,the structurally-controlled hollow sample delivers high reversible capacity(103.7 m A h g-1at 50 C)and extraordinary cycling capability especially at high charge/discharge currents(164.7 m A h g-1after 500 cycles at 10 C).

著录项

  • 来源
    《中国科学》 |2018年第6期|P.670-676|共7页
  • 作者单位

    Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences,Institute of Chemistry, Chinese Academy of Sciences;

    University of Chinese Academy of Sciences;

    State Key Laboratory of Fine Chemicals, Dalian University of Technology;

    College of Food Science & Technology, Huazhong Agricultural University;

    Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences,Institute of Chemistry, Chinese Academy of Sciences;

    University of Chinese Academy of Sciences;

    State Key Laboratory of Fine Chemicals, Dalian University of Technology;

    College of Food Science & Technology, Huazhong Agricultural University;

    Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences,Institute of Chemistry, Chinese Academy of Sciences;

    University of Chinese Academy of Sciences;

    State Key Laboratory of Fine Chemicals, Dalian University of Technology;

    College of Food Science & Technology, Huazhong Agricultural University;

    Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences,Institute of Chemistry, Chinese Academy of Sciences;

    University of Chinese Academy of Sciences;

    State Key Laboratory of Fine Chemicals, Dalian University of Technology;

    College of Food Science & Technology, Huazhong Agricultural University;

    Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences,Institute of Chemistry, Chinese Academy of Sciences;

    University of Chinese Academy of Sciences;

    State Key Laboratory of Fine Chemicals, Dalian University of Technology;

    College of Food Science & Technology, Huazhong Agricultural University;

    Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences,Institute of Chemistry, Chinese Academy of Sciences;

    University of Chinese Academy of Sciences;

    State Key Laboratory of Fine Chemicals, Dalian University of Technology;

    College of Food Science & Technology, Huazhong Agricultural University;

    Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences,Institute of Chemistry, Chinese Academy of Sciences;

    University of Chinese Academy of Sciences;

    State Key Laboratory of Fine Chemicals, Dalian University of Technology;

    College of Food Science & Technology, Huazhong Agricultural University;

    Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences,Institute of Chemistry, Chinese Academy of Sciences;

    University of Chinese Academy of Sciences;

    State Key Laboratory of Fine Chemicals, Dalian University of Technology;

    College of Food Science & Technology, Huazhong Agricultural University;

  • 原文格式 PDF
  • 正文语种 CHI
  • 中图分类 蓄电池;
  • 关键词

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