Chitra, S. and Kalyani, P. and Mohan, T. and Gangadharan, R. (1999) Physical Properties and Electrochemical Features of Lithium Nickel-Cobalt Oxide Cathode Materials Prepared at Moderate Temperature. Journal of Electroceramics, 3:4. pp. 425-432.

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In this paper, we report the synthesis, the physical properties and the electrochemical features of the lithium nickel-cobalt oxide cathode materials prepared by a combustion method at moderate temperature. Structural properties were investigated by X-ray diffraction, Raman scattering and FTIR. Spectroscopic measurements show unambiguously that the ®nal product is identi®ed as a modi®ed-spinel structure (Fd3m space group) with the stoichiometric formula Li2 Ni0:5Co0:5 2O4. Electrochemical cells Li//Li2 Ni0:5Co0:5 2O4 were fabricated using an organic electrolyte and their performances were tested. For a modi®ed-spinel Li2 Ni0:5Co0:5 2O4 structure the chemical diffusion coef®cient of Li ions is around 10 ÿ10 cm2s, which is lower than for a layered LiNi0:5Co0:5O2 host matrix.

Item Type: Article
Uncontrolled Keywords: Li-Ni-Co oxides; Raman; FTIR; electrochemical properties; lithium batteries
Subjects: Electrochemical Power Sources
Depositing User: ttbdar CECRI
Date Deposited: 08 May 2012 06:42
Last Modified: 08 May 2012 06:42

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