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Synthesis of cathode material for sodium ion batteries using dry vibration milling

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2017, 27(2), pp.70~74
  • DOI : 10.6111/JKCGCT.2017.27.2.070
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : April 18, 2017
  • Accepted : April 19, 2017
  • Published : April 30, 2017

Yeon-Woo Lee 1 Han-Jun Kim 1 Yeonhui Kang 1 Chang-Sam Kim 1

1한국과학기술연구원

Accredited

ABSTRACT

Two milling methods, dry vibration milling and wet ball milling, were used to prepare Na2/3(Ni1/3Mn2/3)O2 powders as a cathode material for sodium ion batteries. The morphology and electrochemical property of the two powders with different milling processes were compared to each other. The particle size is less than 1 μm in the dry vibration milled powder, while lots of larger particles than 1 μm were found in the wet ball milled one. The single phase of Na2/3(Ni1/3Mn2/3)O2 was obtained in the temperature range of 875~900 o C. The discharge capacity and discharge voltage of the powder prepared by the dry process were higher than those of one prepared by the wet process.

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