Energy Storage Science and Technology ›› 2014, Vol. 3 ›› Issue (2): 117-122.doi: 10.3969/j.issn.2095-4239.2014.02.004

• Research & development • Previous Articles     Next Articles

Synthesis of SnO2/C anode for lithium ion battery by a reflux-assisted hydrothermal method

XIA Dongdong1,2, YANG Xuelin1, ZHENG Anhua1, TAO Huachao1, ZHOU Yongtao1, WEN Zhaoyin3   

  1. 1College of Materials and Chemical Engineering,Three Gorges University,Yichang 443002,Hubei,China;
    2Research Institute of New Energy,Three Gorges University,Yichang 443002,Hubei,China;
    3Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China
  • Received:2013-11-25 Online:2014-03-01 Published:2014-03-01

Abstract: SnO2/C composites were synthesized by a reflux-assisted hydrothermal method using SnCl2·2H2O and polyvinylpyrrolidone (PVP) as raw materials. Crystalline structures and morphology of the composite particles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The electrochemical performacne of the composites were evaluated using Galvanostatic charge-discharge, electrochemical impedance spectrum (EIS) and cyclic voltammetry (CV) devices. The results showed that the SnO2/PVP composites could deliver a reversible discharge capacity of 591.7 mA·h·g-1 after 100 cycles, indicating an excellent cycling performance. High extent of dispersion of SnO2 nanoparticles (5~10 nm) in amorphous carbon and good buffering effect to absorb the volume change of tin particles during the charging/discharging process were proposed to be the main reasons for the observed high material performance.

Key words: SnO2/C, reflux-assisted method, lithium ion battery, anode

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