Journal
MATERIALS RESEARCH BULLETIN
Volume 48, Issue 11, Pages 4960-4962Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2013.07.002
Keywords
Inorganic compounds; Chemical synthesis; X-ray diffraction; Electrochemical properties
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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.
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