| 단순화한 연소법에 의해 합성한 LiMn1.92Co0.08O4와 LiNi0.7Co0.3O2 혼합물의 전기화학적 특성 |
| 송명엽, 권익현, 김훈욱 |
| 전북대학교 신소재공학부 공학연구원 신소재개발연구센터 |
| Electrochemical Properties of LiMn1.92Co0.08O4 and LiNi0.7Co0.3O2 Mixtures Prepared by a Simplified Combustion Method |
| Myoungyoup Song, IkHyun Kwon, Hunuk Kim |
| Division of Advanced Materials Engineering, Research Center of Advanced Materials Development. Engineering Research Institute, Chonbuk National University |
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| ABSTRACT |
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$LiMn_{1.92}Co_{0.08}O_4$ and $LiNi_{0.7}Co_{0.3}O_2$ synthesized by a simplified combustion method had good electrochemical properties. Mixtures $LiMn_{1.92}Co_{0.08}O_4$-x wt$%$ $LiNi_{0.7}Co_{0.3}O_2$ (x=9, 23, 33, 41, and 47) were prepared by milling for 30 min and their electrochemical properties were investigated. The electrode with x=9 had a relatively large first discharge capacity (109.9 mAh/g at 0.1 C) and good cycling performance. The decrease in the discharge capacity of the mixture electrodes with cycling is considered to result mainly from the degradation of $LiNi_{0.7}Co_{0.3}O_2$, caused by coating of $LiNi_{0.7}Co_{0.3}O_2$ with Mn dissolved from $LiMn_{1.92}Co_{0.08}O_4$. |
| Key words:
A Simplified combustion method, Mixture electrodes, First discharge Capacity, Cycling performance |
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