Structure and Electrochemical Performance of Li[Li0.2Co0.4Mn0.4]O2 Cathode Material for Lithium Ion Battery by Co-precipitation Method

Wei, X.; Zhang, S.C.; Lu, X.X.; Liu, G.R.

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Title	Structure and Electrochemical Performance of Li[Li0.2Co0.4Mn0.4]O2 Cathode Material for Lithium Ion Battery by Co-precipitation Method
Authors	Wei, X. Zhang, S.C. Lu, X.X. Liu, G.R.
ORCID
Keywords	Li-ion battery Li[Li0.2Co0.4Mn0.4]O2 Co-precipitation Method Li-rich layered material Cathode
Type	Conference Papers
Date of Issue	2013
URI	http://essuir.sumdu.edu.ua/handle/123456789/35203
Publisher	Sumy State University
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Citation	Structure and Electrochemical Performance of Li[Li0.2Co0.4Mn0.4]O2 Cathode Material for Lithium Ion Battery by Co-precipitation Method [Текст] / X. Wei, X.X. Lu, S.C. Zhang, G.R. Liu // Nanomaterials: Applications & Properties (NAP-2013) : 3-rd International conference, Alushta, the Crimea, Ukraine, September 16-21, 2013 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2013. - V.2, No2. - 02PCN27
Abstract	The nano-structured Li[Li0.2Co0.4Mn0.4]O2 cathode material is synthesized by a co-precipitation method. X-ray diffraction shows that the synthesized material has a hexagonal α-NaFeO2 type structure with a space group R-3m. Scanning electron microscopy and transmission electron microscopy images show the homogeneous distribution with 100-200 nm. X-ray photoelectron spectroscopy results indicate that the oxi-dation states of Co and Mn in Li[Li0.2Co0.4Mn0.4]O2 are present in trivalence and tetravalence, respectively. The charge-discharge curves and cycling performance are analyzed in detail. The initial charge and dis-charge capacities are respectively 236.5 mAh g-1 and 140.3 mAh g-1 at the current density of 100 mA g-1 in the voltage range of 2.0-4.6 V. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35203
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