Synthesis and characterization of LiCoxMnyNi1−x−yO2 as a cathode material for secondary lithium batteries

The synthesis and electrochemical characteristics of LiCoxMnyNi1-x-yO2 as cathode materials for rechargeable lithium-ion batteries were investigated. The precursor CoxMnyNi1-x-y(OH)2 was obtained by the chemical co-precipitation method. LiCoxMnyNi1-x-yO2 (0 # < x # < 0.3, and y = 0.2) was prep...

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Bibliographic Details
Published in:Journal of power sources 2003-06, Vol.119-121, p.184-188
Main Authors: Chen, Yao, Wang, G.X., Konstantinov, K., Liu, H.K., Dou, S.X.
Format: Article
Language:English
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Summary:The synthesis and electrochemical characteristics of LiCoxMnyNi1-x-yO2 as cathode materials for rechargeable lithium-ion batteries were investigated. The precursor CoxMnyNi1-x-y(OH)2 was obtained by the chemical co-precipitation method. LiCoxMnyNi1-x-yO2 (0 # < x # < 0.3, and y = 0.2) was prepared by heating a mixture of CoxMnyNi1-x-y(OH)2 and Li2CO3 at 850-900DGC for 24 h in air. The X-ray diffraction (XRD) patterns indicated that pure phase LiCoxMnyNi1-x-yO2 was obtained. The scanning electron micrographs (SEMs) show that the synthesized LiCoxMnyNi1-x-yO2 compounds have good micro-morphology and uniform particle size. The electrochemical properties of these materials such as the galvanostatic charge-discharge performance and cyclic voltammetry were systematically measured.
ISSN:0378-7753
DOI:10.1016/S0378-7753(03)00176-9