Effects of atomic layer deposition of Al2O3 on the LiLi0.20Mn0.54Ni0.13Co0.13O 2 cathode for lithium-ion batteries

Yoon Seok Jung; Andrew S. Cavanagh; Yanfa Yan; Steven M. George; Arumugam Manthiram

doi:10.1149/2.030112jes

Effects of atomic layer deposition of Al₂O₃ on the LiLi_0.20Mn_0.54Ni_0.13Co_0.13O ₂ cathode for lithium-ion batteries

Yoon Seok Jung, Andrew S. Cavanagh, Yanfa Yan, Steven M. George, Arumugam Manthiram

Department of Chemical and Biomolecular Engineering

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

109 Citations (Scopus)

Abstract

The lithium-excess layered oxide LiLi_0.2Mn_0.54Ni _0.13Co_0.13O₂ has been surface modified with Al₂O₃ films grown with atomic layer deposition (ALD) and examined as cathodes for lithium-ion batteries. Al₂O₃ was grown on powders prior to electrode fabrication, directly on the electrode, and directly on the electrode followed by a heat-treatment at 300C in air. Compared to the bare electrode, an Al₂O₃ film on an as-formed electrode improved the cycle performance significantly. Furthermore, the heat treatment of the ALD-coated electrodes result in significant increase in capacity, due to the transformation of the as-deposited Al₂O ₃ to a better Li™-conductive material. X-ray photoelectron spectroscopy (XPS) results indicate that the heat-treatment leads to an inter-diffusion of atoms between the Al₂O₃ coating and the LiLi_0.20Mn_0.54Ni_0.13Co_0.13O ₂ core.

Original language	English
Pages (from-to)	A1298-A1302
Journal	Journal of the Electrochemical Society
Volume	158
Issue number	12
DOIs	https://doi.org/10.1149/2.030112jes
Publication status	Published - 2011

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

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@article{cd10c84393b741319c530829da9fef9d,

title = "Effects of atomic layer deposition of Al2O3 on the LiLi0.20Mn0.54Ni0.13Co0.13O 2 cathode for lithium-ion batteries",

abstract = "The lithium-excess layered oxide LiLi0.2Mn0.54Ni 0.13Co0.13O2 has been surface modified with Al2O3 films grown with atomic layer deposition (ALD) and examined as cathodes for lithium-ion batteries. Al2O3 was grown on powders prior to electrode fabrication, directly on the electrode, and directly on the electrode followed by a heat-treatment at 300C in air. Compared to the bare electrode, an Al2O3 film on an as-formed electrode improved the cycle performance significantly. Furthermore, the heat treatment of the ALD-coated electrodes result in significant increase in capacity, due to the transformation of the as-deposited Al2O 3 to a better Li{\texttrademark}-conductive material. X-ray photoelectron spectroscopy (XPS) results indicate that the heat-treatment leads to an inter-diffusion of atoms between the Al2O3 coating and the LiLi0.20Mn0.54Ni0.13Co0.13O 2 core.",

author = "{Seok Jung}, Yoon and Cavanagh, {Andrew S.} and Yanfa Yan and George, {Steven M.} and Arumugam Manthiram",

year = "2011",

doi = "10.1149/2.030112jes",

language = "English",

volume = "158",

pages = "A1298--A1302",

journal = "Journal of the Electrochemical Society",

issn = "0013-4651",

publisher = "Electrochemical Society, Inc.",

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T1 - Effects of atomic layer deposition of Al2O3 on the LiLi0.20Mn0.54Ni0.13Co0.13O 2 cathode for lithium-ion batteries

AU - Seok Jung, Yoon

AU - Cavanagh, Andrew S.

AU - Yan, Yanfa

AU - George, Steven M.

AU - Manthiram, Arumugam

PY - 2011

Y1 - 2011

N2 - The lithium-excess layered oxide LiLi0.2Mn0.54Ni 0.13Co0.13O2 has been surface modified with Al2O3 films grown with atomic layer deposition (ALD) and examined as cathodes for lithium-ion batteries. Al2O3 was grown on powders prior to electrode fabrication, directly on the electrode, and directly on the electrode followed by a heat-treatment at 300C in air. Compared to the bare electrode, an Al2O3 film on an as-formed electrode improved the cycle performance significantly. Furthermore, the heat treatment of the ALD-coated electrodes result in significant increase in capacity, due to the transformation of the as-deposited Al2O 3 to a better Li™-conductive material. X-ray photoelectron spectroscopy (XPS) results indicate that the heat-treatment leads to an inter-diffusion of atoms between the Al2O3 coating and the LiLi0.20Mn0.54Ni0.13Co0.13O 2 core.

AB - The lithium-excess layered oxide LiLi0.2Mn0.54Ni 0.13Co0.13O2 has been surface modified with Al2O3 films grown with atomic layer deposition (ALD) and examined as cathodes for lithium-ion batteries. Al2O3 was grown on powders prior to electrode fabrication, directly on the electrode, and directly on the electrode followed by a heat-treatment at 300C in air. Compared to the bare electrode, an Al2O3 film on an as-formed electrode improved the cycle performance significantly. Furthermore, the heat treatment of the ALD-coated electrodes result in significant increase in capacity, due to the transformation of the as-deposited Al2O 3 to a better Li™-conductive material. X-ray photoelectron spectroscopy (XPS) results indicate that the heat-treatment leads to an inter-diffusion of atoms between the Al2O3 coating and the LiLi0.20Mn0.54Ni0.13Co0.13O 2 core.

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