Electrochemical synthesis and research of nanotubes of titanium dioxide as an anode material for lithium-ion battery

  • Maxim Lepikhin al-Farabi Kazakh National University
  • Meruert Moldakova al-Farabi Kazakh National University
  • Alina Galeyeva al-Farabi Kazakh National University
Keywords: titanium dioxide nanotubes, anode materials, lithium intercalation, lithium-ion batteries

Abstract

Electrochemical synthesis of TiO2-nanotube performed in electrolytes of different composition when applied to a cell potential of 60 V for 5 hours. Titania nanotube obtained were examined by scanning electron microscopy (SEM). Electrochemical characteristics of nanotubes determined by chronopotentiometry and voltammetry methods in a three-electrode cell with a platinum counter electrode and Li/Li+ reference electrode in an electrolyte of 1M LiClO4 in propylene carbonate (PC). On the polarization curves of these materials have been several waves of lithium intercalation in the potential range from 2.0 V to 0 V, indicating that the stepwise mechanism of the process of lithium intercalation. Also in the anode area is allocated a distinct peak deintercalation of lithium ranging from 2.0V to 3.0V. Enough good repeatability of cycles shows a good reversibility of the process and the stability of the material during cycling. It has been found that the best electrochemical characteristics have material synthesized in the electrolyte №2 an electrochemical method and has capacity 78.6%.

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Published
2014-10-31
How to Cite
Lepikhin, M., Moldakova, M., & Galeyeva, A. (2014). Electrochemical synthesis and research of nanotubes of titanium dioxide as an anode material for lithium-ion battery. Chemical Bulletin of Kazakh National University, 75(3), 18-24. https://doi.org/https://doi.org/10.15328/chemb_2014_318-24
Section
Physical Chemistry and Electrochemistry