The migration mechanism of transition metal ions in LiNi0.5Mn1.5O4

Gui Liang Xu; Yan Qin; Yang Ren; Lu Cai; Ke An; Khalil Amine; Zonghai Chen

doi:10.1039/c5ta02522b

The migration mechanism of transition metal ions in LiNi_0.5Mn_1.5O₄

Gui Liang Xu, Yan Qin, Yang Ren, Lu Cai, Ke An, Khalil Amine, Zonghai Chen

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

19 Scopus citations

Abstract

The migration of transition metal ions in the oxygen framework was recently proposed to be responsible for the continuous loss of average working potential of high energy density layered-layered composite cathodes for lithium-ion batteries. The potential migration pathway in a model material, LiNi_0.5Mn_1.5O₄ spinel, was investigated using in situ high-energy X-ray diffraction and in situ neutron diffraction during the solid state synthesis process. It was found that the migration of transition metal ions among octahedral sites is possible by using tetrahedral vacancies as intermediate sites. It was also suggested that the number of electrons in 3d orbitals has a significant impact on their mobility in the hosting oxygen framework.

Original language	English
Pages (from-to)	13031-13038
Number of pages	8
Journal	Journal of Materials Chemistry A
Volume	3
Issue number	24
DOIs	https://doi.org/10.1039/c5ta02522b
State	Published - Jun 28 2015

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title = "The migration mechanism of transition metal ions in LiNi0.5Mn1.5O4",

abstract = "The migration of transition metal ions in the oxygen framework was recently proposed to be responsible for the continuous loss of average working potential of high energy density layered-layered composite cathodes for lithium-ion batteries. The potential migration pathway in a model material, LiNi0.5Mn1.5O4 spinel, was investigated using in situ high-energy X-ray diffraction and in situ neutron diffraction during the solid state synthesis process. It was found that the migration of transition metal ions among octahedral sites is possible by using tetrahedral vacancies as intermediate sites. It was also suggested that the number of electrons in 3d orbitals has a significant impact on their mobility in the hosting oxygen framework.",

author = "Xu, \{Gui Liang\} and Yan Qin and Yang Ren and Lu Cai and Ke An and Khalil Amine and Zonghai Chen",

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year = "2015",

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doi = "10.1039/c5ta02522b",

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TY - JOUR

T1 - The migration mechanism of transition metal ions in LiNi0.5Mn1.5O4

AU - Xu, Gui Liang

AU - Qin, Yan

AU - Ren, Yang

AU - Cai, Lu

AU - An, Ke

AU - Amine, Khalil

AU - Chen, Zonghai

PY - 2015/6/28

Y1 - 2015/6/28

N2 - The migration of transition metal ions in the oxygen framework was recently proposed to be responsible for the continuous loss of average working potential of high energy density layered-layered composite cathodes for lithium-ion batteries. The potential migration pathway in a model material, LiNi0.5Mn1.5O4 spinel, was investigated using in situ high-energy X-ray diffraction and in situ neutron diffraction during the solid state synthesis process. It was found that the migration of transition metal ions among octahedral sites is possible by using tetrahedral vacancies as intermediate sites. It was also suggested that the number of electrons in 3d orbitals has a significant impact on their mobility in the hosting oxygen framework.

AB - The migration of transition metal ions in the oxygen framework was recently proposed to be responsible for the continuous loss of average working potential of high energy density layered-layered composite cathodes for lithium-ion batteries. The potential migration pathway in a model material, LiNi0.5Mn1.5O4 spinel, was investigated using in situ high-energy X-ray diffraction and in situ neutron diffraction during the solid state synthesis process. It was found that the migration of transition metal ions among octahedral sites is possible by using tetrahedral vacancies as intermediate sites. It was also suggested that the number of electrons in 3d orbitals has a significant impact on their mobility in the hosting oxygen framework.

UR - https://www.scopus.com/pages/publications/84935911354

U2 - 10.1039/c5ta02522b

DO - 10.1039/c5ta02522b

M3 - Article

AN - SCOPUS:84935911354

SN - 2050-7488

VL - 3

SP - 13031

EP - 13038

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 24

ER -

The migration mechanism of transition metal ions in LiNi_0.5Mn_1.5O₄

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