| 금속산화물 첨가방법에 의한 리튬이차전지 부극재료의 충방전 특성 개선 |
| 김정식 |
| 서울시립대학교 신소재공학과 |
| Enhancement on the Charge-discharge Property of Carbon Anode by the Addition of Metal Oxides in Li-ion Secondary Batteries |
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| ABSTRACT |
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In the present study effects of SnO$_2$-impregnation on the cell performance of Mesocarbon Microbeads (MCMB) electrode in the Li-ion battery have been investigated. Sn element was impreganted into MCMB powders by the chemical titration, and then post annealed at 250$^{circ}C$ for 1 h in ambient atmosphere to be transformed as tin-oxide. From the measurement for the cell performance with the half cell in which the SnO$_2$-impregnated MCMB was used as an anode, the SnO$_2$-impregnated MCMB showed higher charge/discharge capacities, higher reversible specific charge capacity and better cycleability than a raw MCMB. As the amount of impregnated SnO$_2$ increased, both reversible and irreversible capacities increased. |
| Key words:
Li-ion battery, Carbon electrode, Metal oxide addition, Anode |
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