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http://dx.doi.org/10.4191/kcers.2018.55.1.08

Surface-Modified Spinel LiNi0.5Mn1.5O4 for Li-Ion Batteries  

Kim, Jongsoon (Department of Nanotechnology and Advanced Materials Engineering, Sejong University)
Kim, Hyungsub (Neutron Science Center, Korea Atomic Energy Research Institute (KAERI))
Kang, Kisuk (Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University)
Publication Information
Journal of the Korean Ceramic Society / v.55, no.1, 2018 , pp. 21-35 More about this Journal
Abstract
Spinel $LiNi_{0.5}Mn_{1.5}O_4$ has received great attention as one of the most outstanding cathode materials for Li-ion batteries (LIBs) because of its high energy density resulting from the operating voltage of ~ 4.7 V (vs. $Li^+/Li$) based on the $Ni^{2+}/Ni^{4+}$ redox reaction. However, $LiNi_{0.5}Mn_{1.5}O_4$ is known to suffer from undesirable side reactions with the electrolyte at high voltage as well as Mn dissolution from the structure. These issues prevent the realization of the optimal electrochemical performance of $LiNi_{0.5}Mn_{1.5}O_4$. Extensive research has been conducted to overcome these issues. This review presents an overview of the various surface-modification methods available to improve the electrochemical properties of $LiNi_{0.5}Mn_{1.5}O_4$ and provides perspectives on further research aimed at the application of $LiNi_{0.5}Mn_{1.5}O_4$ as a cathode material in commercialized LIBs.
Keywords
Spinels; Batteries; Electrodes;
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