Characteristics of precursor powders of a nickel-rich cathode material prepared by a spray drying process using water-soluble metal salts

Gi Dae Park, Yun Chan Kang

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The electrochemical properties of LiNi0.8Co0.15Al0.05O2 as a cathode material prepared by a simple spray drying process are investigated. Citric acid, which is used as the chelating agent, enables the production of the lithium-containing precursor powders with uniform compositions from the water-soluble metal salts by a spray drying process. The post-treatment of the precursor powders under an atmosphere of oxygen results in a cathode material in the form of a powder with good electrochemical properties. The composition of the powders is determined by inductively coupled plasma analysis to be Li1.05Ni0.81Co0.15Al0.04O2. The discharge capacities of the powders post-treated at 750 °C after the 1st and 100th cycles are 188 and 178 mA h g-1, respectively. The simple spray drying process is successfully applied to the preparation of precursors of the cathode material with complex compositions. The electrochemical properties of the micron sized LiNi0.8Co0.15Al0.05O2 aggregates with a filled morphology prepared from the precursor powders obtained by the spray drying process are also investigated. The aggregated powders obtained by the second spray drying process show a discharge capacity of 161 mA h g-1 after 100 cycles. This journal is

Original languageEnglish
Pages (from-to)44203-44207
Number of pages5
JournalRSC Advances
Volume4
Issue number83
DOIs
Publication statusPublished - 2014 Jan 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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