Properties of lithium cobaltate powders prepared by FEAG and ultrasonic spray pyrolysis process

Hee Chan Jang, Seo Hee Ju, Yun Chan Kang

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1 Citation (Scopus)

Abstract

LiCoO2 cathode powders were prepared by the two different spray pyrolysis processes. The mean size of the post-treated LiCoO2 powders prepared by the FEAG process was 1.6 μm when the excess amount of lithium component was 10 mol% of the stoichiometric value. The post-treated LiCoO 2 powders obtained by ultrasonic spray pyrolysis were finer than those prepared by the FEAG process. The initial discharge capacities of the LiCoO2 powders prepared by the FEAG process changed from 119 to 156 mAh/g when the excess amounts of lithium component were changed from 3 to 20 mol% of the stoichiometric value. The maximum initial discharge capacity of the LiCoO2 powders prepared by the ultrasonic spray pyroysis was 151 mAh/g obtained from the excess amount of lithium component of 3 mol% of the stoichiometric value.

Original languageEnglish
Pages (from-to)709-712
Number of pages4
JournalJournal of the Ceramic Society of Japan
Volume117
Issue number1365
DOIs
Publication statusPublished - 2009 Jan 1
Externally publishedYes

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Keywords

  • Cathode material
  • Lithium cobaltate
  • Spray pyrolysis

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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