The characteristics of Ni-Co-Mn-O precursor and Li(Ni1/3Co1/3Mn1/3)O2 cathode powders prepared by spray pyrolysis

Seo Hee Ju, Yun Chan Kang

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Ni-Co-Mn-O precursor powders with spherical shape and dense structure were prepared by spray pyrolysis from a spray solution containing a drying control chemical additive (DCCA) and polymeric precursors. In contrast, the Ni-Co-Mn-O precursor powders obtained from a spray solution without additives had a hollow and porous morphology. Ni-Co-Mn-O precursor powders with a spherical shape and dense structure yielded Li(Ni1/3Co1/3Mn1/3)O2 cathode powders with a spherical shape and fine size by means of a solid-state reaction with lithium hydroxide. The mean size of the spherical cathode powder was 1.1 μm. The discharge capacity of the Li(Ni1/3Co1/3Mn1/3)O2 powders with spherical shape and filled morphology was 195 mA h g-1 at a current density of 0.1 C. The discharge capacities of the cathode powders with spherical shape and filled morphology at 55 °C decreased from 183 to 154 mA h g-1 by the 30th cycle at a current density of 0.5 C.

Original languageEnglish
Pages (from-to)1205-1210
Number of pages6
JournalCeramics International
Volume35
Issue number3
DOIs
Publication statusPublished - 2009 Apr 1
Externally publishedYes

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Spray pyrolysis
Powders
Cathodes
Current density
Solid state reactions
Drying
Lithium

Keywords

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

ASJC Scopus subject areas

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

Cite this

The characteristics of Ni-Co-Mn-O precursor and Li(Ni1/3Co1/3Mn1/3)O2 cathode powders prepared by spray pyrolysis. / Ju, Seo Hee; Kang, Yun Chan.

In: Ceramics International, Vol. 35, No. 3, 01.04.2009, p. 1205-1210.

Research output: Contribution to journalArticle

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N2 - Ni-Co-Mn-O precursor powders with spherical shape and dense structure were prepared by spray pyrolysis from a spray solution containing a drying control chemical additive (DCCA) and polymeric precursors. In contrast, the Ni-Co-Mn-O precursor powders obtained from a spray solution without additives had a hollow and porous morphology. Ni-Co-Mn-O precursor powders with a spherical shape and dense structure yielded Li(Ni1/3Co1/3Mn1/3)O2 cathode powders with a spherical shape and fine size by means of a solid-state reaction with lithium hydroxide. The mean size of the spherical cathode powder was 1.1 μm. The discharge capacity of the Li(Ni1/3Co1/3Mn1/3)O2 powders with spherical shape and filled morphology was 195 mA h g-1 at a current density of 0.1 C. The discharge capacities of the cathode powders with spherical shape and filled morphology at 55 °C decreased from 183 to 154 mA h g-1 by the 30th cycle at a current density of 0.5 C.

AB - Ni-Co-Mn-O precursor powders with spherical shape and dense structure were prepared by spray pyrolysis from a spray solution containing a drying control chemical additive (DCCA) and polymeric precursors. In contrast, the Ni-Co-Mn-O precursor powders obtained from a spray solution without additives had a hollow and porous morphology. Ni-Co-Mn-O precursor powders with a spherical shape and dense structure yielded Li(Ni1/3Co1/3Mn1/3)O2 cathode powders with a spherical shape and fine size by means of a solid-state reaction with lithium hydroxide. The mean size of the spherical cathode powder was 1.1 μm. The discharge capacity of the Li(Ni1/3Co1/3Mn1/3)O2 powders with spherical shape and filled morphology was 195 mA h g-1 at a current density of 0.1 C. The discharge capacities of the cathode powders with spherical shape and filled morphology at 55 °C decreased from 183 to 154 mA h g-1 by the 30th cycle at a current density of 0.5 C.

KW - A. Powders: gas-phase reaction

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