The effect of preparation conditions on the properties of Li 3V 2(PO 4) 3 cathode powders prepared by ultrasonic spray pyrolysis

You Na Ko, Jung Hyun Kim, Young Jun Hong, Yun Chan Kang

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Abstract

Li 3V 2(PO 4) 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 °C with a flow rate of 20 L minute under 10% H 2/N 2 reducing gas produced spherical, pure Li 3V 2(PO 4) 3particles. Li 3V 2(PO 4) 3powder prepared under the optimum conditions showed a maximum initial discharge capacity of 144 mAhg 1.

Original languageEnglish
Pages (from-to)252-257
Number of pages6
JournalJournal of Ceramic Processing Research
Volume13
Issue number3
Publication statusPublished - 2012

Keywords

  • Cathode material
  • Lithium vanadium phosphate
  • Spray pyrolysis

ASJC Scopus subject areas

  • Ceramics and Composites

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