Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Mechanochemical Synthesis of ZnMn2O4 and its Electrochemical Properties as an Anode Material for Lithium-ion Batteries

  • Park, Yoon-Soo (Department of Advanced Materials Science and Engineering, Kangwon National University) ;
  • Oh, Hoon (Department of Advanced Materials Science and Engineering, Kangwon National University) ;
  • Lee, Sung-Man (Department of Advanced Materials Science and Engineering, Kangwon National University)
  • Received : 2011.06.30
  • Accepted : 2011.07.21
  • Published : 2011.09.20
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Abstract

$ZnMn_2O_4$ has been prepared by a mechanochemical process using a mixture of $Mn_2O_3$ and ZnO as starting materials, and investigated as a possible anode material for lithium-ion batteries. The phase evolution and morphologies of the ball-milled and annealed powders are characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) with energy dispersive microanalysis (EDX), respectively. The solid-state reaction for the formation of $ZnMn_2O_4$, under the given experimental conditions, is achieved in a short time (30 min), and the prepared samples exhibit excellent electrochemical performances including an enhanced initial coulombic efficiency, high reversible capacity, and stable capacity retention with cycling.

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