Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Preparation and Electrochemical Characteristics of Mg-Sn Nanoparticles as an Anode Material for Li-ion Batteries

  • Tulugan, Kelimu (Department of Ocean System Engineering, GyeongSang National University) ;
  • Lei, Jun-Peng (School of Materials Science and Engineering, Dalian University of Technology) ;
  • Dong, Xin-Long (School of Materials Science and Engineering, Dalian University of Technology) ;
  • Park, Won-Jo (Department of Ocean System Engineering, GyeongSang National University)
  • Received : 2014.10.02
  • Accepted : 2014.12.09
  • Published : 2014.12.31
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Abstract

Mg-Sn nanoparticles were prepared by an arc-discharge method in a mixture atmosphere of argon and hydrogen gases. Phases, morphologies, and microstructures of the nanoparticles were investigated by means of X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). It was found that the intermetallic compound of $Mg_2Sn$ was generated and coexisted with metallic phases of Mg and Sn within nanoparticles. Basedon the model cell, the electrochemical properties were also explored by discharge-charge cycling, cyclic voltammetry, and electrochemical impedance spectroscopy. The initial capacity of the first cycle reached 430 mAh/g. Two visible plateaus at 0.2-0.3 and 0.5-0.75V were observed in the potential profiles, which can attributed to alloying/de-alloying reactions between Li and Mg2Sn, respectively.

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References

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