期刊
SOLID STATE IONICS
卷 148, 期 3-4, 页码 343-350出版社
ELSEVIER
DOI: 10.1016/S0167-2738(02)00072-3
关键词
spinel phases; cathodes; lithium-ion batteries
Pure and substituted spinels, LiM1/6Mn11/6O4 (M = Co, (Co,Al), (Co,Cr), (Cr,Al)), were prepared, characterised by X-ray diffraction (XRD) and X-ray photoelectron spectra (XPS) and their cathodic performance evaluated. The Mn 2P(3/2) XPS analysis shows a decrease in Mn3+ concentration by substitution. The cyclic voltammograms and the charge-discharge profiles of the M-substituted compounds show an indication of structural stabilisation, a decrease in the values of charge and discharge capacities, but a considerable improvement of capacity retention at room temperature as well as at 50 degreesC. (C) 2002 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据