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Characterization of LiNi1/3Co1/3Mn1/3O2 Cathode Materials Prepared from Different Precursors in Lithium Rechargeable Batteries

리튬2차전지에서 다른 전구체로부터 합성된 LiNi1/3Co1/3Mn1/3O2 양극 활물질의 특성

  • 김성근 (군산대학교 나노화학공학과) ;
  • 홍성완 (우석대학교 화장품학과) ;
  • 한경식 (우석대학교 화장품학과) ;
  • 이홍기 (우석대학교 연료전지 지역혁신센터) ;
  • 심중표 (군산대학교 나노화학공학과)
  • Published : 2008.11.01

Abstract

$LiNi_{1/3}Co_{1/3}Mn_{1/3}O_2$ cathode materials prepared from different precursors in lithium rechargeable batteries were characterized by various analytical methods. $LiNi_{1/3}Co_{1/3}Mn_{1/3}O_2$ powders were synthesized by using solid-state reaction method and their physical and chemical properties were analyzed by XRD, SEM, particle size analyzer and TCP-AES. These materials showed different crystallinity, particle size, surface morphology and chemical composition. Also, the charge/discharge cycling of $LiNi_{1/3}Co_{1/3}Mn_{1/3}O_2$ electrodes was carried out under various cut-off voltages and it showed different behaviors. It was found that the electrochemical cyclability of $LiNi_{1/3}Co_{1/3}Mn_{1/3}O_2$ was strongly related to its crystallinity.

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