Electrochemical properties of LiNi0.8Co0.2-xAl xO2 (0≤x≤0.1) cathode particles prepared by spray pyrolysis from the spray solutions with and without organic additives

S. H. Ju, J. H. Kim, Y. C. Kang

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Fine-sized LiNi0.8Co0.2-xAlxO2 (0≤x≤0.1) cathode particles were prepared by spray pyrolysis from the spray solutions with and without organic additives. Citric acid, ethylene glycol, and Drying Control Chemical Additive (DCCA) were used as organic additives and improved the morphologies and electrochemical properties of the cathode particles. The LiNi0.8Co0.2-xAlxO 2 (0≤x≤0.1) cathode particles obtained from the spray solutions with organic additives were of micro size and had slightly aggregated morphologies. The initial discharge capacities of the LiNi0.8Co 0.2-xAlxO2 (0≤x≤0.1) cathode particles obtained from the spray solutions without organic additive changed from 169 mAhg -1 to 190 mAhg -1 when the x changed from 0 to 0.1. However, the initial discharge capacities of the cathode particles obtained from the spray solutions with organic additives changed from 196 mAhg-1 to 218 mAhg-1 . The initial discharge capacity of the LiNi 0.8Co0.15Al0.05O2 cathode particles obtained from the spray solution with organic additives was maintained after the 20th cycle at a current density of 0.1 C.

Original languageEnglish
Pages (from-to)299-303
Number of pages5
JournalMetals and Materials International
Volume16
Issue number2
DOIs
Publication statusPublished - 2010 Apr
Externally publishedYes

Keywords

  • Chemical synthesis
  • Electrochemistry
  • Energy storage materials
  • Spray pyrolysis

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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