한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

리튬 폴리머 전지용 $LiMnO_2$의 열처리 온도에 따른 충방전 특성

Charge-discharge Properties of $LiMnO_2$ as a Function of Heat Treatment Temperature for Lithium Polymer Batteries

  • 조영재 (전남대학교 전기공학과) ;
  • 위성동 (전남대학교 전기공학과) ;
  • 김상기 (전남대학교 전기공학과) ;
  • 구할본 (전남대학교 전기공학과) ;
  • 김종욱 (전북대학교 전자정보사업단) ;
  • 박계춘 (목포대학교 전기제어공학부)
  • 발행 : 2001.05.11
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초록

The properties of $LiMnO_2$ was studied as a cathode active material for lithium polymer batteries. $LiMnO_2$ cathode active materials were synthesized by the reaction of $LiOH{\cdot}H_2O$ and $Mn_2O_3$ at various temperature under argon atmosphere. The powders were characterized by the X -ray diffraction. For lithium polymer battery applications, the $LiMnO_2$ cell was characterized electrochemically by charge-discharge experiments and a.c. impedance spectroscopy. And the relationship between the characteristics of powders and electrochemical properties was studied in this research. A maximum discharge capacity of 160~170 mAh/g for o-$LiMnO_2$ cell was achieved. The capacity of o-$LiMnO_2$ electrode demonstrated better than of the spinel $LiMnO_2$ by solid-state reaction.

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