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Electrochemical properties of layered Li[Ni1/2Mn 1/2]O2 cathode material synthesised by ultrasonic spray pyrolysis

  • S. H. Park
  • , Y. S. Lee
  • , Y. Sato
  • , Y. K. Sun*
  • *Corresponding author for this work
  • Hanyang University
  • Kanagawa University

Research output: Contribution to journalJournal articlepeer-review

Abstract

Layered Li[Ni1/2Mn1/2]O2 was synthesized by an ultrasonic spray pyrolysis method. The Li[Ni1/2Mn 1/2]O2 powder was characterized by means of X-ray diffraction, charge/discharge test, and cyclic voltammetry. The discharge capacity increases linearly with increase of the upper cut-off voltage limit and attains a high discharge capacity of 187 mA h g-1 between 2.8 and 4.6 V with excellent cyclability. A cyclic voltammetric study of the Li[Ni1/2Mn1/2]O2 electrode showed only one redox peak implying no structural phase change during cycling.

Original languageEnglish
Pages (from-to)1169-1173
Number of pages5
JournalJournal of Applied Electrochemistry
Volume33
Issue number12
DOIs
StatePublished - 2003.12

Keywords

  • Cathode
  • Layered
  • LiNiMnO
  • Lithium
  • Manganese

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