Synthesis and optimization of tin dioxide/functionalized multi-walled carbon nanotube composites as anode in lithium-ion battery

Xiao-Bing Xu, Hong-Zhang Geng*, Yan Meng, Er-Xiong Ding, Yan Wang, Ze-Chen Zhang, Wen-Yi Wang

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

In this paper, nanocomposite electrodes for rechargeable Lithium-ion battery composed of tin dioxide (SnO2) and multi-walled carbon nanotubes (MWCNTs) were prepared using the chemical deposition method with a subsequent sintering process. The as-prepared hybrids were characterized by thermal gravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffraction and transmission electron microscopy. The results showed that the size of pure SnO2 particles was similar to 5 nm and hybrids presented a uniform dispersion of SnO2 nanoparticles on the surfaces of the MWCNTs. The electrochemical properties of the composites were researched through a cyclic voltammetry and a galvanostatic charge-discharge test. It was found that the electrochemical performance of the composite was strongly dependent on the content of MWCNTs in the composites. The SnO2/MWCNT composite with 18.40 wt% MWCNTs gave the best performance, exhibiting a relatively higher reversible capacity of 475 mAh g(-1) and an extended capacity retention of 65% even after 30 cycles at a current density of 78.2 mA g(-1). (C) 2014 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)155-160
Number of pages6
JournalMaterials Chemistry and Physics
Volume153
DOIs
Publication statusPublished - 1 Mar 2015
MoE publication typeA1 Journal article-refereed

Keywords

  • Nanostructures
  • Precipitation
  • Chemical techniques
  • Electrochemical properties
  • SNO2 NEGATIVE ELECTRODE
  • FACILE SYNTHESIS
  • CHEMICAL-CHANGES
  • PERFORMANCE
  • STORAGE
  • FUNCTIONALIZATION
  • NANOCOMPOSITES
  • NANOPARTICLES
  • BEHAVIOR
  • OXIDE

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