Abstract
A series of LiNiyMnyCozO2 layered materials was synthesized by chimie douce and investigated as positive electrodes in rechargeable lithium batteries. Electrochemical performance of LiNiyMnyCozO2 oxides is tested cell using non-aqueous 1M LiPF6 dissolved in EC-DEC. Charge-discharge profiles are investigated as a function of the rate capability and the voltage window. A relation is found between the gravimetric capacity and the cation disorder of the positive electrode as indicated by structural analysis. A quite fast lithium extraction attributed to the larger interslab space has been observed in the cobalt-rich oxides.
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