A new strategy to diminish the 4 V voltage plateau of LiNi0.5Mn1.5O4

被引：10
|
作者：
Liu, Guoqiang [1 ]
Zhang, Lingxi [1 ]
Sun, Lu [1 ]
Wang, Lun [1 ]
机构：
[1] Northeastern Univ, Sch Met & Mat, Shenyang 110819, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 11期
关键词：
Inorganic compounds; Chemical synthesis; X-ray diffraction; Electrochemical properties; RATE CAPABILITY; PERFORMANCE;
D O I：
10.1016/j.materresbull.2013.07.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
As for spinel LiNi0.5Mn1.5O4, there is 4 V voltage plateau in the charge-discharge profiles. This voltage plateau can be reduced by an annealing process, however it is hard to avoid it completely. In this study, a new strategy of partial substitution for Mn by Mg is applied. There is no 4 V voltage plateau in the charge-discharge profiles of Mg-doped compound LiNi0.5Mn1.45Mg0.05O4. This compound exhibits good electrochemical properties which can be used as cathode material of lithium ion batteries. At 1 C rate, it can deliver a capacity of around 129 mAh g(-1) and remain good cycle performance. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4960 / 4962
页数：3
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