Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0013-4686(02)00593-5
Title: Performance of layered Li(Ni1/3Co1/3Mn1/3)O2 as cathode for Li-ion batteries
Authors: Shaju, K.M. 
Subba Rao, G.V. 
Chowdari, B.V.R. 
Keywords: Cathode material
Layered structures
Li-ion batteries
XPS
Issue Date: 21-Nov-2002
Citation: Shaju, K.M., Subba Rao, G.V., Chowdari, B.V.R. (2002-11-21). Performance of layered Li(Ni1/3Co1/3Mn1/3)O2 as cathode for Li-ion batteries. Electrochimica Acta 48 (2) : 145-151. ScholarBank@NUS Repository. https://doi.org/10.1016/S0013-4686(02)00593-5
Abstract: Layered Li(Ni1/3Co1/3Mn1/3)O2 was prepared by mixed hydroxide method and characterised by means of X-ray diffraction, X-ray photoelectron spectroscopy (XPS), cyclic voltammetry and charge-discharge cycling. The hexagonal lattice parameters obtained for the compound are: a = 2.864 and c = 14.233 Å. XPS studies show that the predominant oxidation states of Ni, Co and Mn in the compound are 2+, 3+ and 4+, respectively with small content of Ni3+ and Mn3+ ions. Initial discharge capacity of 160 mAh/g was obtained in the range 2.5-4.4 V and at a specific current of 30 mA/g of which 143 mAh/g was retained at the end of 40 charge-discharge cycles. At lower current (10 mA/g) and in the voltage window 2.5-4.7 V, discharge capacity of 215 mAh/g is obtainable. From the voltage profile and cyclic voltammetry, the redox processes occurring at ∼ 3.8 and ∼ 4.6 V are assigned to the Ni2+/4+ and Co3+/4+ couples, respectively. © 2002 Published by Elsevier Science Ltd.
Source Title: Electrochimica Acta
URI: http://scholarbank.nus.edu.sg/handle/10635/97511
ISSN: 00134686
DOI: 10.1016/S0013-4686(02)00593-5
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