E2M - 전기 전자와 첨단 소재 (Electrical & Electronic Materials)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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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)
  • 발행 : 2001.12.01
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초록

Orthorhombic type LiCo$_{x}$Mn$_{1-x}$ O$_2$(0$\leq$x$\leq$0.14) oxides have been synthesized by hydrothermal treatment of (Co$_{x}$Mn$_{1-x}$ )$_3$O$_4$precursors and LiOH aqueous solution at 17$0^{\circ}C$. As-synthesized powders showed well-ordered $\beta$-MaMnO$_2$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$_2$./TEX>.EX>.

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