Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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A study on the Active Material FeS2 in Battery Fabricated by Mechanical Alloying

  • Jung Woo-Hyun (Division of Advanced Materials Science and Engineering & ITRC, Gyeongsang National University) ;
  • Ahn In-Shup (Division of Advanced Materials Science and Engineering & ITRC, Gyeongsang National University) ;
  • Ahn Hyo-Jun (Division of Advanced Materials Science and Engineering & ITRC, Gyeongsang National University) ;
  • Bae Sung-Yeal (Division of Advanced Materials Science and Engineering & ITRC, Gyeongsang National University) ;
  • Sung Tek-Kyoung (Division of Advanced Materials Science and Engineering & ITRC, Gyeongsang National University) ;
  • Kim Tae-Bum (Division of Advanced Materials Science and Engineering & ITRC, Gyeongsang National University) ;
  • Kim You-Young (Jinju National University)
  • Published : 2005.06.01
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Abstract

As the electrodes of secondary battery are made with sulfur compounds, excellent electrode system of environmental non-toxicity, high specific energy density and low material cost can be obtained. In this study, the $FeS_2$ fine compound powders for active material in the battery were synthesized by mechanical alloying. Fine Fe-53.5 wt.%S powders of 450 nm of mean size were fabricated by mechanical alloying for 60 hours at the horizontal attritor. As the mechanical alloying time increases, particle size of Fe-53.5 wt.%S was decreased and steady state of Fe-53.5 wt.%S compound powders was obtained at 30 hours. Fe-53.5 wt.%S cathode shows the excellent discharge capacity (1011 mAh/g).

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