LiMn2O4 powders prepared from nano-sized manganese oxide powders

Seo Hee Ju, Do Youp Kim, Eun Byul Jo, Yun Chan Kang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Fine-sized LiMn2O4 powders were prepared by solid-state reaction method using the nano-sized manganese oxide powders. Nano-sized manganese oxide powders obtained by spray pyrolysis from spray solution with citric acid and ethylene glycol formed the fine-sized LiMn 2O4 powders with regular morphology by solid-state reaction method with LiOH. The mean sizes of the LiMn2O4 powders prepared from the nano-sized manganese oxide increased with increasing the post-treatment temperatures. Nano-sized LiMn2O4 powders with regular morphology were obtained at low post-treatment temperatures below 800°C. The LiMn2O4 powders post-treated at 800°C had the mean size of several hundreds nanometer and the narrow size distribution. The initial discharge capacity of the fine-sized LiMn 2O4 powders prepared by solid-state reaction method using nano-sized Mn2O3 powders was 127 mAh/g. The discharge capacities of the LiMn2O4 powders dropped from 127 to 112 mAh/g by the 50th cycle at a current density of 0.1 C.

Original languageEnglish
Pages (from-to)241-244
Number of pages4
JournalJournal of the Ceramic Society of Japan
Volume115
Issue number1340
DOIs
Publication statusPublished - 2007 Apr
Externally publishedYes

Keywords

  • Lithium manganate
  • Manganese oxide
  • Nano powder
  • Spray pyrolysis

ASJC Scopus subject areas

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

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