Fine-sized LiNi0.8Co0.15Mn0.05O2 cathode particles prepared by spray pyrolysis from the polymeric precursor solutions

Seo Hee Ju, Yun Chan Kang

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Fine-sized LiNi0.8Co0.15Mn0.05O2 cathode particles with high discharge capacities and good cycle properties were prepared by spray pyrolysis from the polymeric precursor solutions. The cathode particles obtained from the spray solution without polymeric precursors had irregular morphology and hardly aggregated morphology. On the other hand, the cathode particles obtained from the spray solution with citric acid and ethylene glycol had fine size and regular morphologies. The cathode particles obtained from the spray solution containing adequate amounts of citric acid and ethylene glycol had several hundreds nanometer and narrow size distribution. The maximum discharge capacity of the cathode particles was 218 mAh/g when the excess of lithium component added to the spray solution was 6 mol% of the stoichiometric amount to obtain the LiNi0.8Co0.15Mn0.05O2 particles. The discharge capacities of the fine-sized LiNi0.8Co0.15Mn0.05O2 particles dropped from 218 to 213 mAh/g by the 50th cycle at a current density of 0.1 C.

Original languageEnglish
Pages (from-to)1633-1639
Number of pages7
JournalCeramics International
Volume35
Issue number4
DOIs
Publication statusPublished - 2009 May

Keywords

  • A. Powders: gas phase reaction
  • E. Batteries

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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