Chinese Journal of Applied Chemistry ›› 2018, Vol. 35 ›› Issue (7): 825-833.DOI: 10.11944/j.issn.1000-0518.2018.07.180158

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Preparation of Tin Oxide-Graphene Flexible Electrode and Its Application in Lithium Ion Battery

Ruoxin YUAN,Xingang LIU,Chuhong ZHANG()   

  1. Polymer Research Institute,State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610065,China
  • Received:2018-05-07 Accepted:2018-05-21 Published:2018-07-06 Online:2018-07-06
  • Contact: Chuhong ZHANG
  • Supported by:
    Supported by the National Basic Research Program of China(973 program)(No.2013CB934700), the National Natural Science Foundation of China(No.51673123), the Program of State Key Laboratory of Polymer Materials Engineering of China(No.SKLPME2014-1-04)

Abstract:

Flexible free-standing tin oxide(SnO2) nanoparticles with different particle size/graphene sandwich paper electrodes were fabricated via a simple filtration method. The influence of SnO2 particle size on electrochemical performances was investigated by X-ray diffraction(XRD), scanning electron microscopy(SEM), transmission electronic microscopy(TEM), Brunauer, atomic force microscope(AFM), Emmett and Teller analysis(BET) and electrochemical measurements. The results show that the best electrochemical performance can be obtained when the particle size of nanoparticle is at 6 nm. When applied as an anode for lithium ion battery, an excellent cycling stability with a reversible capacity of 555 mA·h/g after 100 cycles at 100 mA/g is delivered, which is far superior to those of pristine SnO2 and the corresponding composites composed of larger or smaller particles than optimum.

Key words: tin oxide(SnO2), graphene, flexible electrode, lithium ion battery