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http://dx.doi.org/10.5229/JKES.2013.16.3.151

Effect of Calcination Temperatures on the Structure and Electrochemical Characterization of Li(Ni0.5Mn0.3Co0.2)O2 as Cathode Material by Supercritical Hydrothermal Synthesis Method  

Choo, Soyeon (Graduate School of Green Energy Technology, Chungnam National University)
Beom, YunGyeong (Department of Fine Chemical Engineering & Applied Chemistry, Chungnam National University)
Kim, Sungsu (Graduate School of Green Energy Technology, Chungnam National University)
Han, Kyooseung (Graduate School of Green Energy Technology, Chungnam National University)
Publication Information
Journal of the Korean Electrochemical Society / v.16, no.3, 2013 , pp. 151-156 More about this Journal
Abstract
As the cathode material for li-ion battery, $LiNi_{0.5}Mn_{0.3}Co_{0.2}O_2$ were synthesized by supercritical hydrothermal method and calcined $850^{\circ}C$ and $900^{\circ}C$ for 10hrs in air. The effect of temperature in the heat treatment on the powder and its performance were studied of xray diffraction pattern, SEM-image, physical properties and electrochemical behaviors. As a result, calcined at $900^{\circ}C$ material particle size more increase than calcined at $850^{\circ}C$ material, especially shows excellent electrochemical performance with initial reversible specific capacity of 163.84 mAh/g (0.1C/2.0-4.3V), 186.87 mAh/g (0.1C/2.0-4.5V) and good capacity retention of 91.49% (0.2C/2.0-4.3V) and 90.36% (0.2C/2.0-4.5V) after 50th charge/discharge cycle.
Keywords
$LiNi_{0.5}Mn_{0.3}Co_{0.2}O_2$; Cathode; Supercritical Hydrothemal Synthesis; Li-ion battery;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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