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Electrochemical Properties of LiCoO2 Prepared by Mechanochemical Process  

Cho, Byung-Won (Battery Research Center, KIST)
Lee, Joong Kee (Battery Research Center, KIST)
Lee, Jae-Ryong (Department of Chemical and Biological Engineering, Korea University)
Kim, Su-Jin (Department of Chemical and Biological Engineering, Korea University)
Lee, Kwan-Young (Department of Chemical and Biological Engineering, Korea University)
Na, Byung-Ki (School of Chemical Engineering, Chungbuk National University)
Publication Information
Korean Chemical Engineering Research / v.46, no.1, 2008 , pp. 69-75 More about this Journal
Abstract
Discharge capacity of $LiCoO_2$ in preparation by mechanochemical process decreased remarkably over 4.3V. However, Zr coating of $LiCoO_2$ showed very stable electrochemical properties up to 4.5V. Zr coating of $LiCoO_2$ in this experiment showed the discharge capacity of 197 mAh/g at 3.0-4.5V, and it maintained 96% of the initial discharge capacity after 50 cycle of charge/discharge.
Keywords
Lithium Ion Battery; $LiCoO_2$; Mechanochemical Process; Zr Coating;
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