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J. Korean Ceram. Soc. > Volume 50(6); 2013 > Article
Journal of the Korean Ceramic Society 2013;50(6): 539.
doi: https://doi.org/10.4191/kcers.2013.50.6.539
MnS / 카본나노튜브 복합체의 합성과 리튬 전기화학적 거동
이광희, 민경미, 김동완
아주대학교 에너지시스템학과
Synthesis and Li Electroactivity of MnS/Carbon Nanotube Composites
Gwang-Hee Lee, Kyung-Mi Min, Dong-Wan Kim
Department of Energy Systems Research, Ajou University
ABSTRACT
A simple synthetic process is demonstrated for the preparation of MnS/carbon nanotube (CNT) composites for Li ion battery electrodes. CNTs were initially treated using a strong acid solution to generate carboxylate ions ($-COO^-$) on their surfaces. The MnS/CNT composites were synthesized by a polyvinyl-pyrrolidone-assisted hydrothermal method in the presence of as-functionalized CNTs. The phase and morphology of the MnS/CNT composites and pure MnS microspheres were characterized using X-ray diffraction and high-resolution transmission electron microscopy. Furthermore, the Li electroactivity levels of the MnS/CNT composites and MnS microspheres were investigated using cyclic voltammetry and galvanostatic cycling. The MnS/CNT composite electrodes showed higher specific capacities exceeding 365 $mA;h;g^{-1}$ at a C/10 current rate and enhanced cyclic performance compared to pure MnS microspheres.
Key words: MnS microspheres, Functionalized CNT, Hydrothermal process, Li ion battery
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