Atomic Layer Deposition of a Particularized Protective MgF2 Film on a Li-Ion Battery LiMn1.5Ni0.5O4 Cathode Powder Material

Alexander Kraytsberg; Haika Drezner; Mahmud Auinat; Alon Shapira; Nickolay Solomatin; Peter Axmann; Margret Wohlfahrt-Mehrens; Yair Ein-Eli

doi:https://doi.org/10.1002/cnma.201500149

Atomic Layer Deposition of a Particularized Protective MgF₂ Film on a Li-Ion Battery LiMn_1.5Ni_0.5O₄ Cathode Powder Material

Alexander Kraytsberg, Haika Drezner, Mahmud Auinat, Alon Shapira, Nickolay Solomatin, Peter Axmann, Margret Wohlfahrt-Mehrens, Yair Ein-Eli

Materials Science & Engineering

Technion - Israel Institute of Technology

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

Abstract

A several atomic layers thick magnesium fluoride (MgF₂) film is successfully deposited onto each individual grain of an ultrahigh-potential LiMn_1.5Ni_0.5O₄-powder material for Li-ion batteries. The resulting film has a marked protection action, as it does not compromise the cathode performance substantially, while it extends the cycle life of the cathodes prepared from the coated powder. The protective effect is pronounced at 45 °C and the catastrophic capacity fading is halted. The essence of the protecting action is suggested to be in blocking the access of aggressive electrolyte-decomposition byproducts to the cathode material surface.

Original language	English
Pages (from-to)	577-585
Number of pages	9
Journal	ChemNanoMat
Volume	1
Issue number	8
DOIs	https://doi.org/10.1002/cnma.201500149
State	Published - Dec 2015

Keywords

lithium-ion batteries
magnesium fluoride
manganese dissolution
powder atomic layer deposition

All Science Journal Classification (ASJC) codes

Biomaterials
Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Materials Chemistry

UN SDGs

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

Access to Document

https://doi.org/10.1002/cnma.201500149

Cite this

@article{103233135f3c4893933c26b2afd94368,

title = "Atomic Layer Deposition of a Particularized Protective MgF2 Film on a Li-Ion Battery LiMn1.5Ni0.5O4 Cathode Powder Material",

abstract = "A several atomic layers thick magnesium fluoride (MgF2) film is successfully deposited onto each individual grain of an ultrahigh-potential LiMn1.5Ni0.5O4-powder material for Li-ion batteries. The resulting film has a marked protection action, as it does not compromise the cathode performance substantially, while it extends the cycle life of the cathodes prepared from the coated powder. The protective effect is pronounced at 45 °C and the catastrophic capacity fading is halted. The essence of the protecting action is suggested to be in blocking the access of aggressive electrolyte-decomposition byproducts to the cathode material surface.",

keywords = "lithium-ion batteries, magnesium fluoride, manganese dissolution, powder atomic layer deposition",

author = "Alexander Kraytsberg and Haika Drezner and Mahmud Auinat and Alon Shapira and Nickolay Solomatin and Peter Axmann and Margret Wohlfahrt-Mehrens and Yair Ein-Eli",

note = "Publisher Copyright: {\textcopyright} 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2015",

month = dec,

doi = "https://doi.org/10.1002/cnma.201500149",

language = "الإنجليزيّة",

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T1 - Atomic Layer Deposition of a Particularized Protective MgF2 Film on a Li-Ion Battery LiMn1.5Ni0.5O4 Cathode Powder Material

AU - Kraytsberg, Alexander

AU - Drezner, Haika

AU - Auinat, Mahmud

AU - Shapira, Alon

AU - Solomatin, Nickolay

AU - Axmann, Peter

AU - Wohlfahrt-Mehrens, Margret

AU - Ein-Eli, Yair

PY - 2015/12

Y1 - 2015/12

N2 - A several atomic layers thick magnesium fluoride (MgF2) film is successfully deposited onto each individual grain of an ultrahigh-potential LiMn1.5Ni0.5O4-powder material for Li-ion batteries. The resulting film has a marked protection action, as it does not compromise the cathode performance substantially, while it extends the cycle life of the cathodes prepared from the coated powder. The protective effect is pronounced at 45 °C and the catastrophic capacity fading is halted. The essence of the protecting action is suggested to be in blocking the access of aggressive electrolyte-decomposition byproducts to the cathode material surface.

AB - A several atomic layers thick magnesium fluoride (MgF2) film is successfully deposited onto each individual grain of an ultrahigh-potential LiMn1.5Ni0.5O4-powder material for Li-ion batteries. The resulting film has a marked protection action, as it does not compromise the cathode performance substantially, while it extends the cycle life of the cathodes prepared from the coated powder. The protective effect is pronounced at 45 °C and the catastrophic capacity fading is halted. The essence of the protecting action is suggested to be in blocking the access of aggressive electrolyte-decomposition byproducts to the cathode material surface.

KW - lithium-ion batteries

KW - magnesium fluoride

KW - manganese dissolution

KW - powder atomic layer deposition

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U2 - https://doi.org/10.1002/cnma.201500149

DO - https://doi.org/10.1002/cnma.201500149

M3 - مقالة

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EP - 585

JO - ChemNanoMat

JF - ChemNanoMat

IS - 8

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