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

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Electrochemical properties of $LiCr_xMn_{1-x}O_2$ cathode materials for lithium ion battery

리튬 이온 이차전지용 $LiCr_xMn_{1-x}O_2$ 정극활물질의 전기 화학적 특성

  • 김은미 (전남대학교 전기공학과) ;
  • 전연수 (전남대학교 전기공학과) ;
  • 백형렬 (전남대학교 전기공학과) ;
  • 구할본 (전남대학교 전기공학과) ;
  • 손명모 (대구공업대학 보석귀금속디자인과)
  • Published : 2005.07.07
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Abstract

$\o-LiMnO_2$ is known to have poor cycle performance causing the irreversible phase transformation on cycling. In this paper, the effect of chemical substitution on improving cycle performance of $o-LiMnO_2$ was studied at the compositions of $LiCr_xMn_{1-x}O_2$(x=0, 0.1, 0.2, 0.4). XRD is showed that structure of $LiCr_xMn_{1-x}O_2$ transformed from orthorhombic to spinel according to the increase of substitute degree. For lithium ion battery applications, $LiCr_xMn_{1-x}O_2$/Li cell were characterized electrochemically by charge/discharge cycling.

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