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http://dx.doi.org/10.4313/JKEM.2006.19.7.650

Electrochemical Properties of LiNi0.4Mn0.3Co0.3O2 Cathode Material for Lithium Ion Battery  

Kong, Ming-Zhe (한국전기연구원 전지연구그룹)
Kim, Hyun-Soo (한국전기연구원 전지연구그룹)
Kim, Ke-Tack (한국전기연구원 전지연구그룹)
Gu, Hal-Bon (전남대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.19, no.7, 2006 , pp. 650-654 More about this Journal
Abstract
[ $LiNi_{0.4}Mn_{0.3}Co_{0.3}O_2$ ] cathode material was synthesized by a mixed hydroxide method. Structural characterization was carried out using X-ray diffraction studies. Electrochemical studies were performed by assembling 2032 coin cells with lithium metal as an anode. DSC (Differential scanning calorimetry) data showed that exothermic reactions of $LiNi_{0.4}Mn_{0.3}Co_{0.3}O_2$ charged to 4.3 V versus Li started at high temperatures$(280\sim390^{\circ}C)$. The cell of $LiNi_{0.4}Mn_{0.3}Co_{0.3}O_2$ mixed cathode delivered a discharge capacity of 150 mAh/g at a 0.2 C rate. The capacity of the cell decreased with the current rate and a useful capacity of 134 mAh/g was obtained at a 2 C rate. The reversible capacity after 100th cycles was 126 mAh/g when a cell was cycled at a current rate of 0.5 C in $2.8\sim4.3V$.
Keywords
$LiNi_{0.4}Mn_{0.3}Co_{0.3}O_2$; Cathode material; Differential scanning calorimetry; Reversible capacity;
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Times Cited By KSCI : 1  (Citation Analysis)
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