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Toward rational design of N-doped Li4Ti5O12@carbon anode materials for high-performance lithium-ion batteries

  • Xueyang Ji
  • Hao Liu
  • Xiaona Wu
  • Qifang LuEmail author
  • Zhengping Li
  • Yingping Pang
Original Paper


The construction of efficient nitrogen doping and carbon coating Li4Ti5O12 anode materials is of critical importance for high-performance lithium-ion batteries. Herein, nitrogen-doped Li4Ti5O12@carbon nanoparticles have been synthesized via a one-step straight-forward strategy under solid-state conditions using chitosan as novel nitrogen/carbon source. The process with introducing chitosan incorporates that nitrogen-doped into both Li4Ti5O12 lattice and carbon could enlarge both the lattice volume of Li4Ti5O12 and the content of disordered carbon, which give rise to shortened path of Li+ ions intercalation and enhanced bulk Li4Ti5O12 electronic conductivity. Meanwhile, the introduction of chitosan could inhibit the agglomeration of nanoparticles and amplify the specific surface area so as to transfer Li+ ions faster, especially at high current density. As a result, the reversible discharge capacity of nitrogen-doped Li4Ti5O12@carbon electrode is up to 121.8 mAh g−1 and still remains at 117.1 mAh g−1 after 500 cycles at a current density of 10 C. Therefore, nitrogen-doped Li4Ti5O12@carbon nanoparticles electrode could be a potential candidate as an anode material for lithium-ion batteries.


Li4Ti5O12 Chitosan Nitrogen doping Carbon coating Lithium-ion batteries 


Funding information

This work was supported by Shandong Provincial Natural Science Foundation (Grant No. ZR2016BM22) and the Science and Technology Development Plan Project of Shandong Province (Grant No. 2014GGX102039).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Xueyang Ji
    • 1
  • Hao Liu
    • 1
  • Xiaona Wu
    • 1
  • Qifang Lu
    • 1
    Email author
  • Zhengping Li
    • 2
  • Yingping Pang
    • 2
  1. 1.Shandong Provincial Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics, School of Material Science and EngineeringQilu University of Technology (Shandong Academy of Sciences)JinanPeople’s Republic of China
  2. 2.State Key Laboratory of Biobased Material and Green PapermakingQilu University of Technology (Shandong Academy of Sciences)JinanPeople’s Republic of China

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