High power lithium ion polymer batteries (IV): Nano-sized cathode materials manufactured in a single synthetic step using united eutectic self-mixing method

  • 안욱 (충남대학교 공업화학과) ;
  • 라동일 (충남대학교 공업화학과) ;
  • 이범재 (충남대학교 공과대학) ;
  • 한규승 (충남대학교 정밀공업화학과)
  • Published : 2005.12.30

Abstract

Nano-sized cathode materials for high power lithium ion polymer battery are easily and economically prepared using united eutectic self-mixing method without any artificial mixing procedures of reactants and ultra-miniaturization of products. While the micro-sized $LiNi_{0.7}Co_{0.3}O_2$ exhibits the discharge capacities of 167.8 mAh/g at 0.1C and 142.5 mAh/g at 3.0C, those of the nano-sized $LiNi_{0.7}Co_{0.3}O_2$ are 170.8 mAh/g at 0.1C and 159.3 mAh/g at 3.0C. In the case of $LiCoO_2$, the micro-sized $LiCoO_2$ exhibits the discharge capacities of 134.8 mAh/g at 0.1C and 118.6 mAh/g at 5.0C. Differently, the nano-sized $LiCoO_2$ exhibits the discharge capacities of 137.2 mAh/g at 0.1C and 131.7 mAh/g at 5.0C.

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