Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 4, Issue 3, Pages 205-209Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/S1388-2481(02)00251-5
Keywords
lithium batteries; stabilized layer electrode
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The electrochemical properties of 0.95LiMn(0.5)M(0.5)O(2) . 0.05Li(2)TiO(3) have been investigated as part of a study of xLiMO(2) . (1 - x)Li2M'O-3 electrode systems for lithium batteries in which M = Co, Ni, Mn and M' = Ti, Zr, Mn. The data indicate that the electrochemically inactive Li2TiO3 Component contributes to the stabilization of LiMn0.5M0.5O2 electrodes, which improves the coulombic efficiency of Li/xLiMn(0.5)Ni(0.5)O(2) . (1 - x)Li2TiO3 cells for x < 1. The 0.95LiMn(0.5)Ni(0.5)O(2) &BULL; 0.05Li(2)TiO(3) electrodes provide a rechargeable capacity of approximately 175 mAh/g at 50 &DEG;C when cycled between 4.6 and 2.5 V; there is no indication of spinel formation during electrochemical cycling. (C) 2002 Elsevier Science B.V. All rights reserved.
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