고체전해질용 $Li_2O-V_2O_5-P_2O_5$ 유리의 전기적 특성

Electrical Properties of $Li_2O-V_2O_5-P_2O_5$ Glasses for Solid State Electrolyte

  • 이창희 (부산대학교 재료공학부) ;
  • 손명모 (대구공업대학교 보석귀금속디자인학과) ;
  • 이헌수 (대구공업대학교 보석귀금속디자인학과) ;
  • 구할본 (전남대학교 전기공학과) ;
  • 박희찬 (부산대학교 재료공학부)
  • 발행 : 2005.07.07

초록

Ternary tellurite glassy systems ($Li_2O-V_2O_5-P_2O_5$) have been synthesised using Vanadium oxide as a network former and Lithium oxide as network modifier. The addition of a metal? oxide makes them electric or mixed electric-ionic conductors, which are of potential interest as cathode' materials for solid-state batteries. This glass-ceramics crystallized from the $Li_2O-V_2O_5-P_2O_5$ system are particularly interesting, because they exhibit high conductivity (up to $5.95\times10^{-4}$ S/cm) at room temperature. the glass samples were prepared by quenching the melt on the copper plate and the glass-ceramics were heat-treated at crystallizing temperature determined from differential thermal analysis (DTA). The electric D.C conductivity result have been analyzed in terms of a small polaron-hopping model.

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