Spinel LiNi0.5Mn1.5O4 and its derivatives as cathodes for high-voltage Li-ion batteries |
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Authors: | G Q Liu L Wen Y M Liu |
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Institution: | (1) School of Material and Metallurgy, Northeastern University, Shenyang, 110004, China;(2) Chinese Academy of Sciences, Institute of Metal Research, Shenyang National Laboratory for Materials Science, Shenyang, 110016, China |
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Abstract: | The spinel material LiNi0.5Mn1.5O4 displays a remarkable property of high charge/discharge voltage plateau at around 4.7 V. It is a promising cathode material
for new-generation lithium-ion batteries with high voltage. Recently, a lot of researches related to this material have been
carried out. In this review we present a summary of these researches, including the structure, the mechanism of high voltage,
and the latest developments in improving its electrochemical properties like rate ability and cycle performance at elevated
temperature, etc. Doping element and synthesizing nanoscale material are effective ways to improve its rate ability. The novel
battery systems, like LiNi0.5Mn1.5O4/Li5Ti4O12 with good electrochemical properties, are also in progress. |
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