期刊
MATERIALS LETTERS
卷 104, 期 -, 页码 57-60出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2013.04.001
关键词
Composite materials; Energy storage and conversion; Sol-gel preparation; Raman; Diffusion
资金
- NASA-CANM-URC [NNX10AQ17A]
High energy density composite cathode, 0.3Li(2)MnO(3)-0.7LiNi(0.5)Mn(0.5)O(2) was prepared using two different wet chemical routes viz, co-precipitation and sol-gel methods. The powder X-ray diffraction patterns and Raman spectra of the samples showed clear evidence of the composite nature. Microscopy analysis revealed the particle sizes of the materials prepared by co-precipitation and sol-gel methods are 1.5-2.0 mu m and 350-550 nm, respectively. Charge-discharge tests indicate the better electrochemical performance of the sol-gel prepared composite in terms of high discharge capacity (similar to 240 mAh/g) and good cycling performance: The improved electrochemical performance was attributed to a decrease in the charge-transfer resistance and high surface area. (C) 2013 Elsevier 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