Synthesis and Characteristics of LiCoO<sub>2</sub> Powders Prepared by SHS Process

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doi:2004.41.5.388

J. Korean Ceram. Soc. > Volume 41(5); 2004 > Article

Journal of the Korean Ceramic Society 2004;41(5): 388.
doi: https://doi.org/10.4191/kcers.2004.41.5.388

자전연소합성법을 이용한 리튬이차전지용 양극활물질 LiCoO₂의 제조 및 특성

류명한, 이종현¹, 원창환², Hayk H. Nersisyan³

충남대학교 금속공학과
¹한국원자력연구
²충남대학교 금속공학
³충남대학교 급속응고신소재연구소

Synthesis and Characteristics of LiCoO₂ Powders Prepared by SHS Process

ABSTRACT

LiCoO$_2$ as the cathode activity material for lithium secondary battery was prepared from a homogeneously mixed powder of LiNO$_3$/Co by SHS process under argon gas. The characteristics of powder including electrochemical properties were investigated according to various reaction conditions. The reaction temperature/velocity and the size of LiCoO$_2$ were controlled by Li/Co molar ratio and a cooling rate of the specimen, respectively. The maximum discharge capacity was 145 mAh/g on 1.05 Li/Co molar ratio and the relatively stable cycling characteristic with 6.4% of capacity fading was obtained after 10th charging-discharging test.

Key words: $LiCoO_2$, SHS process, Discharge capacity