Electrochamical Properties of $LiFePO_4$ Electrodes for Lithium Polymer Battery

리튬 폴리머 전지 $LiFePO_4$의 전기화학적 특성

  • Kong, Ming-Zhe (Dept. of Electrical Eng., Chonnam National Univ.) ;
  • Gu, Hal-Bon (Dept. of Electrical Eng., Chonnam National Univ.)
  • 공명철 (전남대학교 전기공학과) ;
  • 구할본 (전남대학교 전기공학과)
  • Published : 2005.05.27

Abstract

$LiFePO_4$ is a potential candidate for the cathode material of the lithium polymer batteries. $LiFePO_4$ cathode active materials were synthesized by coating on the $LiFePO_4$ was tried using $TiO_2$ and corbon in oreder to increase cyclic performance and electronic conductivity. Highly dispersed on the particles enhances the electronic conductivity and increases the capacity. For lithium polymer battery applications, $LiFePO_4$/SPE/Li and $LiFePO_4$-$TiO_2$/SPE/Li 'cells were characterized electrochemically by cyclic volatammetry and charge/discharge cycling. The $LiFePO_4$-carbon-$TiO_2$ cathode in PVDF-PC-EC-$LiCIO_4$ electrolyte showed high capacity at high current density.

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