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Ionics

, Volume 23, Issue 11, pp 3031–3036 | Cite as

Preparation of carbon encapsulated Li4Ti5O12 anode material for lithium ion battery through pre-coating method

  • Qi Cheng
  • Shun Tang
  • Chang Liu
  • Qian Lan
  • Jinxing Zhao
  • Jiyuan Liang
  • Feng Wei
  • Zu-Qi Liu
  • Yuan-Cheng Cao
Original Paper

Abstract

Carbon encapsulated Li4Ti5O12 (C/Li4Ti5O12) anode material for lithium ion battery was prepared by using the pre-coat method of two steps, and the TiO2 was pre coated before the reaction with Li2CO3. The structure and morphology of the resultant C/Li4Ti5O12 materials were characterized by X-ray diffraction (XRD) and scanning microscopy (SEM). Electrochemical tests showed that at 0.1 C, the initial discharge capacity was 169.9 mAh g−1, and the discharge capacity was 80 mAh g−1 at 5 C. After 100 cycles at 2 C, the discharge specific capacity was 108.5 mAh g−1. Compare with one step coating method, results showed the C/Li4Ti5O12 prepared by pre-coat method can reduce the particle’s size and effectively improve the electrochemical performance.

Keywords

Lithium ions battery Electrode material Conductivity Carbon coating 

Notes

Acknowledgements

This project was supported by the 4th Yellow Crane Talent Programme of Wuhan City (08010004), Scientific Research Initial funding for the advanced talent of Janghan University (08010001, 06750001), Basic Research Project of Wuhan City (2015011701011593), Hubei Province Innovative Young Research Team in Universities (T201318), Hubei Province, the Featured Superior Disciplinary Group of Optoelectronic Chemical Materials and Devices (10-43001013), and Open fund from Institute of Wuhan Studies (IWHS2016348).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Qi Cheng
    • 1
  • Shun Tang
    • 1
  • Chang Liu
    • 1
  • Qian Lan
    • 1
  • Jinxing Zhao
    • 1
  • Jiyuan Liang
    • 1
  • Feng Wei
    • 1
  • Zu-Qi Liu
    • 2
  • Yuan-Cheng Cao
    • 1
  1. 1.Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental EngineeringJianghan UniversityWuhanChina
  2. 2.Department of Chemistry and BiochemistryOhio State UniversityColumbusUSA

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