Preparation and characterization of LiCo1−yCryO2 oxides |
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| Authors: | R. Vasanthi S. Selladurai C. Julien |
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| Affiliation: | (1) Solid State Ionics Lab., MIT, Anna University, 600044 Chennai, India;(2) LMDH, UMR 7603, Université Pierre et Marie Curie, 4 place Jussieu, case 86, 75252 Paris cedex 05, France |
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| Abstract: | We report the synthesis, characterization and electrochemical properties of LiCo0.85Cr0.15O2 samples. Powders prepared by wet-chemistry using the poly(vinyl alcohol) gel technique exhibit a well-defined layered structure. We describe the evolution of the local environment of cations when the precursor is heat treated at 750 °C in air. Electrochemical features of Li//LiCo0.85Cr0.15O2 cells show a reversible capacity of 125 mAh/g for the first charge-discharge cycle. Paper presented at the 7th Euroconference on Ionics, Calcatoggio, Corsica, France, Oct. 1–7, 2000. |
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