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Journal of Central South University

, Volume 18, Issue 2, pp 406–410 | Cite as

Synthesis and electrochemical performance of TiO2-B as anode material

  • Xin-yu Wang (王新宇)
  • Ke-yu Xie (谢科予)
  • Jie Li (李劼)
  • Yan-qing Lai (赖延清)
  • Zhi-an Zhang (张治安)Email author
  • Ye-xiang Liu (刘业翔)
Article

Abstract

TiO2-B was synthesized by solid-state reaction. The structures, surface morphologies and electrochemical performances of TiO2-B were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM) and electrochemical measurement, respectively. The effects of calcining temperature, molar ratio of K2O to TiO2 and calcining time on the characteristics of TiO2-B were investigated. The results show that the calcining time exerts a significant influence on the electrochemical performances of TiO2-B. The TiO2-B is obtained with good crystal structure and suitable size by using K2Ti4O9, which is prepared at 950°C for 24 h under the condition of x(K2O)/x(TiO2)=1:3.5. The TiO2-B delivers all initial discharge capacity of 231.6 mA·h/g. And the rate capacity is 73.2 mA·h/g at 1 675 mA/g, which suggests that TiO2-B is a promising anode material for the lithium ion batteries.

Key words

lithium ion battery TiO2-B solid state method anode material 

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Copyright information

© Central South University Press and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Xin-yu Wang (王新宇)
    • 1
  • Ke-yu Xie (谢科予)
    • 1
  • Jie Li (李劼)
    • 1
  • Yan-qing Lai (赖延清)
    • 1
  • Zhi-an Zhang (张治安)
    • 1
    Email author
  • Ye-xiang Liu (刘业翔)
    • 1
  1. 1.School of Metallurgical Science and EngineeringCentral South UniversityChangshaChina

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