| 연소법으로 합성한 LiNi1-yMyO2(M=Zn2+, Al3+, and Ti4+ 전기화학적 특성 |
| 권익현, 송명엽 |
| 전북대학교 신소재공학부 공학연구원공업기술연구센터 |
| Electrochemical Properties of LiNi1-yMyO2(M=Zn2+, Al3+, and Ti4+ Synthesized by Combustion Method |
| Ikhyun Kwon, Myoungyoup Song |
| Division of Advanced Materials Engineering, Research Center of Industrial Technology, Engineering Research Institute, Chonbuk National University |
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| ABSTRACT |
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$LiNi_{1-y}M_{y}O_{2}(M=Zn^{2+},;Al^{3+},;and;Ti^{4+},;0.000{le}y{le}0.100)$ were synthesized by the combustion method by calcining in $O_{2}$ stream at $750^{circ}C$ for 36 h. XRD analyses, observation by FE-SEM and measurement of the variation of discharge capacity with the number of cycles were carried out. The composition $LiNi_{0.99}M_{0.01}O_{2}(M=Zn^{2+},;Al^{3+},;and;Ti^{4+})$ of all the compositions showed relatively good electrochemical properties. $LiNi_{0.99}M_{0.01}O_{2}$ exhibited poor crystallinity and $LiNi_{0.99}M_{0.01}O_{2}$ showed the cation mixing of large fraction. $LiNi_{0.99}M_{0.01}O_{2}$ with improved cycling performance showed good crystallinity and the cation mixing of small fraction. |
| Key words:
Combustion method, Discharge capacity, Cycling performance, Crystallinity, Cation mixing |
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