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  Global Journal of Physical Chemistry 2012, 3: 10
  Research Article
Electrochemical behavior of Mn3Sn2 as anode for lithium ion batteries
  Li Lia, Rong Zenga, Chris Cookc, Zaiping Guoa,b, Jianli Wanga, Huakun Liua  
a Institute for superconducting & electronic materials, University of Wollongong, NSW 2522, Australia
a School of mechanical, materials & mechatronics engineering, University of Wollongong, NSW 2522, Australia
c Faculty of Engineering, University of Wollongong, NSW 2522, Australia

  Mn3Sn2 alloy was prepared by arc melting under argon atmosphere and then annealed at 800 oC for one week. High energy ball milling was applied to decrease the particle size of the as-prepared sample. Two carbon-containing composites were also prepared by ball milling the as-prepared Mn3Sn2 with carbon black and graphite, respectively. The structure and morphology of the samples were investigated by X-ray diffraction and field emission scanning electron microscopy. The sample that was ball milled with graphite showed the best electrochemical performance. It demonstrated a reversible capacity of over 300 mAh g-1 and stable cycling performance over 40 cycles. The lithium alloying/de-alloying behavior was investigated by cyclic voltammetry and electrochemical impedance spectroscopy.
  Alloy; Arc-melting; Ball mill; Impedance; Lithium ion batteries  

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