Articles
  • The effect of preparation conditions on the properties of Li3V2(PO4)3 cathode powders prepared by ultrasonic spray pyrolysis
  • You Na Ko, Jung Hyun Kim, Young Jun Hong and Yun Chan Kang*
  • Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
Abstract
Li3V2(PO4)3 powders were prepared by spray pyrolysis under various conditions of gas atmosphere, preparation temperature, and carrier gas flow rate. The precursor powders had a submicrometre size and spherical shape irrespective of their preparation conditions. The morphologies and crystal structures of subsequently post-treated powders varied with the preparation conditions: 1300 οC with a flow rate of 20 L minute-1 under 10% H2/N2 reducing gas produced spherical, pure Li3V2(PO4)3 particles. Li3V2(PO4)3 powder prepared under the optimum conditions showed a maximum initial discharge capacity of 144 mAhg-1.

Keywords: Cathode material, Spray pyrolysis, Lithium vanadium phosphate.

This Article

  • 2012; 13(3): 252-257

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