Layered LiCo1−xMgxO2 (x = 0.0, 0.1, 0.2, 0.3 and 0.5) cathode materials for lithium-ion rechargeable batteries View Full Text


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Article Info

DATE

2007-02-17

AUTHORS

R. Sathiyamoorthi, P. Shakkthivel, R. Gangadharan, T. Vasudevan

ABSTRACT

Layered LiCo1−xMgxO2 (x = 0.0, 0.1, 0.2, 0.3 and 0.5) oxide materials were synthesized using LiNO3, Co(NO3)2, Mg(NO3)2 as the precursors, and the effect of the dopants on the electrochemical properties was investigated. thermogravimetric/differential thermal analysis was carried out to observe the phase transformations of LiCo0.9Mg0.1O2. The phase purity and cation environment of the synthesized oxides were characterized using X-ray diffraction and Fourier transform infrared spectroscopy. The particle size, nature, morphological properties and composition of the synthesized oxides were examined by TEM and SEM with energy dispersive X-ray spectroscopic analysis. Finally, the electrochemical behavior of the prepared layered materials was studied using cyclic voltammetry and charge–discharge cycling. LiCo0.8Mg0.2O2 has good cycling results when compare to other doped and undoped materials. These results have been also supported by cyclic voltammograms. More... »

PAGES

25-33

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11581-007-0066-2

DOI

http://dx.doi.org/10.1007/s11581-007-0066-2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1041604281


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