Characterization and Electrochemical Properties of LiNi0.5Mn1.5O4 Prepared by a Carbonate Co-Precipitation Method

LiNi0.5Mn1.5O4 is synthesized using Ni0.5Mn1.5(CO3)2, which is prepared by a carbonate coprecipitation method at pH values of 7.5, 7.8, 8.0 and 8.3. The Rietveld refinements reveal Li and Ni site substitution in LiNi0.5Mn1.5O4. The preparation pH is found to affect Li and Ni site substitution in LiN...

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Bibliographic Details
Published in:International journal of electrochemical science 2014-12, Vol.9 (12), p.7712-7724
Main Authors: Gu, Yi-Jie, Zang, Qing-Feng, Liu, Hong-Quan, Ding, Jian-Xu, Wang, Yan-Ming, Wang, Hai-Feng, Zhang, Jun, Wei, Wen-Ge
Format: Article
Language:English
Subjects:
cathode material
electrochemical properties
Lithium and Nickel site substitution
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Summary:LiNi0.5Mn1.5O4 is synthesized using Ni0.5Mn1.5(CO3)2, which is prepared by a carbonate coprecipitation method at pH values of 7.5, 7.8, 8.0 and 8.3. The Rietveld refinements reveal Li and Ni site substitution in LiNi0.5Mn1.5O4. The preparation pH is found to affect Li and Ni site substitution in LiNi0.5Mn1.5O4. For the compound prepared at a pH of 8.3, high capacity and a high Li ion diffusion coefficient are achieved.
ISSN:1452-3981
1452-3981
DOI:10.1016/S1452-3981(23)10999-0