Kinetic favorability of Ru-doped LiNi0.5Mn1.5O4 for high-power lithium-ion batteries

Ji Su Chae; Mi Ru Jo; Yong Il Kim; Dong Wook Han; Sun Min Park; Yong Mook Kang; Kwang Chul Roh

doi:10.1016/j.jiec.2014.04.003

Kinetic favorability of Ru-doped LiNi_0.5Mn_1.5O₄ for high-power lithium-ion batteries

Ji Su Chae, Mi Ru Jo, Yong Il Kim, Dong Wook Han, Sun Min Park, Yong Mook Kang, Kwang Chul Roh

Dept. of Future Energy Convergence

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

Pristine and Ru-doped LiNi_0.5Mn_1.5O₄ samples were synthesized using a simple carbon combustion method. Crystallographic analyses combining X-ray diffraction and Rietveld refinement confirmed that formation of the Li_xNi_1-xO-like impurity phase is prevented and that the lattice parameter increases as a result of Ru doping. Furthermore, its structure is partially changed to the more disordered spinel phase (Fd3m). Both this structural change and the disappearance of the impurity phase greatly enhance the rate capability and cyclic retention of LiNi_0.5Mn_1.5O₄.

Original language	English
Pages (from-to)	731-735
Number of pages	5
Journal	Journal of Industrial and Engineering Chemistry
Volume	21
DOIs	https://doi.org/10.1016/j.jiec.2014.04.003
State	Published - 25 Jan 2015

Keywords

Carbon combustion method
Cation ordering
Doping
High-voltage spinel materials
Lithium rechargeable battery

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jiec.2014.04.003

Cite this

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title = "Kinetic favorability of Ru-doped LiNi0.5Mn1.5O4 for high-power lithium-ion batteries",

abstract = "Pristine and Ru-doped LiNi0.5Mn1.5O4 samples were synthesized using a simple carbon combustion method. Crystallographic analyses combining X-ray diffraction and Rietveld refinement confirmed that formation of the LixNi1-xO-like impurity phase is prevented and that the lattice parameter increases as a result of Ru doping. Furthermore, its structure is partially changed to the more disordered spinel phase (Fd3m). Both this structural change and the disappearance of the impurity phase greatly enhance the rate capability and cyclic retention of LiNi0.5Mn1.5O4.",

keywords = "Carbon combustion method, Cation ordering, Doping, High-voltage spinel materials, Lithium rechargeable battery",

author = "Chae, \{Ji Su\} and Jo, \{Mi Ru\} and Kim, \{Yong Il\} and Han, \{Dong Wook\} and Park, \{Sun Min\} and Kang, \{Yong Mook\} and Roh, \{Kwang Chul\}",

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doi = "10.1016/j.jiec.2014.04.003",

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T1 - Kinetic favorability of Ru-doped LiNi0.5Mn1.5O4 for high-power lithium-ion batteries

AU - Chae, Ji Su

AU - Jo, Mi Ru

AU - Kim, Yong Il

AU - Han, Dong Wook

AU - Park, Sun Min

AU - Kang, Yong Mook

AU - Roh, Kwang Chul

PY - 2015/1/25

Y1 - 2015/1/25

N2 - Pristine and Ru-doped LiNi0.5Mn1.5O4 samples were synthesized using a simple carbon combustion method. Crystallographic analyses combining X-ray diffraction and Rietveld refinement confirmed that formation of the LixNi1-xO-like impurity phase is prevented and that the lattice parameter increases as a result of Ru doping. Furthermore, its structure is partially changed to the more disordered spinel phase (Fd3m). Both this structural change and the disappearance of the impurity phase greatly enhance the rate capability and cyclic retention of LiNi0.5Mn1.5O4.

AB - Pristine and Ru-doped LiNi0.5Mn1.5O4 samples were synthesized using a simple carbon combustion method. Crystallographic analyses combining X-ray diffraction and Rietveld refinement confirmed that formation of the LixNi1-xO-like impurity phase is prevented and that the lattice parameter increases as a result of Ru doping. Furthermore, its structure is partially changed to the more disordered spinel phase (Fd3m). Both this structural change and the disappearance of the impurity phase greatly enhance the rate capability and cyclic retention of LiNi0.5Mn1.5O4.

KW - Carbon combustion method

KW - Cation ordering

KW - Doping

KW - High-voltage spinel materials

KW - Lithium rechargeable battery

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