Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Layered $LiCo_{x}Mn_{1-x}O_{2}$ as Cathode Materials for Li-Ion Batteries

  • Kumagai, Naoaki (Department of Chemical Engineering, Faculty of Engineering, Iwate University) ;
  • Myung, Seung-Taek (Department of Chemical Engineering, Faculty of Engineering, Iwate University) ;
  • Komaba, Shinichi (Department of Chemical Engineering, Faculty of Engineering, Iwate University)
  • Published : 2001.11.08
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Abstract

Orthorhombic type $LiCo_{x}Mn_{1-x}O_{2}$(0 ${\times}$ 0.14) oxides have been synthesized by hydrothermal treatment of $(Co_{x}Mn_{1-x})_{3}O_{4}$ precursors and LiOH aqueous solution at $170^{\circ}C$. As-synthesized powders showed well-ordered ${\beta}-NaMnO_{2}$ structures, and the products were single crystalline particle oxides from TEM observations. The particle size decreased with increasing the amount of Co substituent. Much more improved capacity upon 100 cyclings was clearly seen in orthorhombic $LiCo_{0.1}Mn_{0.9}O_{2}$, comparing to orthorhombic $LiMnO_2$.

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