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

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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리튬 폴리머 전지용 $LiMnO_2$의 합성조건에 따른 충방전 특성

Charge/discharge Properties As a Function of Synthetic Conditions of $LiMnO_2$ for Lithium Polymer Batteries

  • 조영재 (전남대학교 전기공학과) ;
  • 김종욱 (전북대학교 전자정보사업단) ;
  • 박계춘 (목포대학교 전기제어공학부) ;
  • 위성동 (전남대학교 전기공학과) ;
  • 구할본 (전남대학교 전기공학과)
  • 발행 : 2001.11.08
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초록

Orthorhombic $LiMnO_2$ was synthesized by solid-state reaction using $LiOH{\cdot}H_{2}O$ and $Mn_{2}O_{3}$ as starting material. Its electrochemical properties as cathode in lithium batteries were examined. X-ray diiffraction revealed that the $LiMnO_2$ compound showed a well-defined orthorhombic phase of a space group with Pmnm. The capacity of $LiMnO_2$ agreed well with its specific surface area and grinding treatment was effective in improving cycling performance. For lithium polymer battery applications. the $LiMnO_2$ cell was characterized electrochemically by charge-discharge experiments. And the relationship between the characteristics of powder and electrochemical properties was studied in this research. A maximum discharge capacity of $160-170mAhg^{-1}$ for $LiMnO_2/Li$ cell was achieved.

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