Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Synthesis and Li Electroactivity of MnS/Carbon Nanotube Composites

MnS / 카본나노튜브 복합체의 합성과 리튬 전기화학적 거동

  • Lee, Gwang-Hee (Department of Energy Systems Research, Ajou University) ;
  • Min, Kyung-Mi (Department of Energy Systems Research, Ajou University) ;
  • Kim, Dong-Wan (Department of Energy Systems Research, Ajou University)
  • 이광희 (아주대학교 에너지시스템학과) ;
  • 민경미 (아주대학교 에너지시스템학과) ;
  • 김동완 (아주대학교 에너지시스템학과)
  • Received : 2013.09.05
  • Accepted : 2013.11.11
  • Published : 2013.11.30
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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.

Keywords

References

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