Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Effects of Particle Size and Binder Phase Addition on Formability of Li-Si Alloy Powder for Thermal Battery Anode

열전지 음극재용 Li-Si 원료의 성형성에 미치는 입자크기와 바인더첨가 효과

  • 류성수 (한국세라믹기술원 이천분원 엔지니어링세라믹팀) ;
  • 김희식 (한국세라믹기술원 이천분원 엔지니어링세라믹팀) ;
  • 김성원 (한국세라믹기술원 이천분원 엔지니어링세라믹팀) ;
  • 김형태 (한국세라믹기술원 이천분원 엔지니어링세라믹팀) ;
  • 정해원 (국방과학연구소 국방신기술본부) ;
  • 이성민 (한국세라믹기술원 이천분원 엔지니어링세라믹팀)
  • Received : 2014.03.28
  • Accepted : 2014.10.20
  • Published : 2014.10.28
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Abstract

The effects of particle size of Li-Si alloy and LiCl-KCl addition as a binder phase for raw material of anode were investigated on the formability of the thermal battery anode. The formability was evaluated with respect to filling density, tap density, compaction density, spring-back and compressive strength. With increasing particle size of Li-Si alloy powder, densities increased while spring-back and compressive strength decreased. Since the small spring-back is beneficial to avoiding breakage of pressed compacts, larger particles might be more suitable for anode forming. The increasing amount of LiCl-KCl binder phase contributed to reducing spring-back, improving the formability of anode powder too. The control of particle size also seems to be helpful to get double pressed pellets, which consisted of two layer of anode and electrolyte.

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