Electrochemical and structural properties of xLi2M′O 3·(1-x)LiMn0.5Ni0.5O2 electrodes for lithium batteries (M′ = Ti, Mn, Zr; O ≤ x ≤ 0.3)

Jeom Soo Kim; Christopher S. Johnson; John T. Vaughey; Michael M. Thackeray; Stephen A. Hackney; Wonsub Yoon; Clare P. Grey

doi:10.1021/cm0306461

Electrochemical and structural properties of xLi₂M′O ₃·(1-x)LiMn_0.5Ni_0.5O₂ electrodes for lithium batteries (M′ = Ti, Mn, Zr; O ≤ x ≤ 0.3)

Jeom Soo Kim
, Christopher S. Johnson
, John T. Vaughey
, Michael M. Thackeray
, Stephen A. Hackney
, Wonsub Yoon
, Clare P. Grey

Argonne National Laboratory
Michigan Technological University
Brookhaven National Laboratory
Stony Brook University

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

534 Scopus citations

Abstract

Electrochemical and structural properties of xLi₂M′O ₃·(1-x)LiMn_0.5Ni_0.5O₂ electrodes (M′ = Ti, Mn, Zr; 0 ≤ x ≤ 0.3) for lithium batteries are reported. Powder X-ray diffraction, lattice imaging by transmission electron microscopy, and nuclear magnetic resonance spectroscopy provide evidence that, for M′ = Ti and Mn, the Li₂M′O₃ component is structurally integrated into the LiMn_0.5Ni_0.5O ₂ component to yield "composite" structures with domains having short-range order, rather than true solid solutions in which the cations are uniformly distributed within discrete layers. Li₂TiO₃ and Li₂ZrO₃ components are electrochemically inactive, whereas electrochemical activity can be induced into the Li₂MnO ₃ component above 4.3 V vs Li⁰. When cycled in lithium cells, xLi₂MnO₃·(1-x)LiMn_0.5Ni _0.5O₂ electrodes with x = 0.3 provide capacities in excess of 300 mA·h/g over the range 4.6-1.45 V.

Original language	English
Pages (from-to)	1996-2006
Number of pages	11
Journal	Chemistry of Materials
Volume	16
Issue number	10
DOIs	https://doi.org/10.1021/cm0306461
State	Published - 18 May 2004
Externally published	Yes

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@article{9066df425ab34378a4f8ca81a5a28c6f,

title = "Electrochemical and structural properties of xLi2M′O 3·(1-x)LiMn0.5Ni0.5O2 electrodes for lithium batteries (M′ = Ti, Mn, Zr; O ≤ x ≤ 0.3)",

abstract = "Electrochemical and structural properties of xLi2M′O 3·(1-x)LiMn0.5Ni0.5O2 electrodes (M′ = Ti, Mn, Zr; 0 ≤ x ≤ 0.3) for lithium batteries are reported. Powder X-ray diffraction, lattice imaging by transmission electron microscopy, and nuclear magnetic resonance spectroscopy provide evidence that, for M′ = Ti and Mn, the Li2M′O3 component is structurally integrated into the LiMn0.5Ni0.5O 2 component to yield {"}composite{"} structures with domains having short-range order, rather than true solid solutions in which the cations are uniformly distributed within discrete layers. Li2TiO3 and Li2ZrO3 components are electrochemically inactive, whereas electrochemical activity can be induced into the Li2MnO 3 component above 4.3 V vs Li0. When cycled in lithium cells, xLi2MnO3·(1-x)LiMn0.5Ni 0.5O2 electrodes with x = 0.3 provide capacities in excess of 300 mA·h/g over the range 4.6-1.45 V.",

author = "Kim, \{Jeom Soo\} and Johnson, \{Christopher S.\} and Vaughey, \{John T.\} and Thackeray, \{Michael M.\} and Hackney, \{Stephen A.\} and Wonsub Yoon and Grey, \{Clare P.\}",

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doi = "10.1021/cm0306461",

language = "English",

volume = "16",

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T1 - Electrochemical and structural properties of xLi2M′O 3·(1-x)LiMn0.5Ni0.5O2 electrodes for lithium batteries (M′ = Ti, Mn, Zr; O ≤ x ≤ 0.3)

AU - Kim, Jeom Soo

AU - Johnson, Christopher S.

AU - Vaughey, John T.

AU - Thackeray, Michael M.

AU - Hackney, Stephen A.

AU - Yoon, Wonsub

AU - Grey, Clare P.

PY - 2004/5/18

Y1 - 2004/5/18

N2 - Electrochemical and structural properties of xLi2M′O 3·(1-x)LiMn0.5Ni0.5O2 electrodes (M′ = Ti, Mn, Zr; 0 ≤ x ≤ 0.3) for lithium batteries are reported. Powder X-ray diffraction, lattice imaging by transmission electron microscopy, and nuclear magnetic resonance spectroscopy provide evidence that, for M′ = Ti and Mn, the Li2M′O3 component is structurally integrated into the LiMn0.5Ni0.5O 2 component to yield "composite" structures with domains having short-range order, rather than true solid solutions in which the cations are uniformly distributed within discrete layers. Li2TiO3 and Li2ZrO3 components are electrochemically inactive, whereas electrochemical activity can be induced into the Li2MnO 3 component above 4.3 V vs Li0. When cycled in lithium cells, xLi2MnO3·(1-x)LiMn0.5Ni 0.5O2 electrodes with x = 0.3 provide capacities in excess of 300 mA·h/g over the range 4.6-1.45 V.

AB - Electrochemical and structural properties of xLi2M′O 3·(1-x)LiMn0.5Ni0.5O2 electrodes (M′ = Ti, Mn, Zr; 0 ≤ x ≤ 0.3) for lithium batteries are reported. Powder X-ray diffraction, lattice imaging by transmission electron microscopy, and nuclear magnetic resonance spectroscopy provide evidence that, for M′ = Ti and Mn, the Li2M′O3 component is structurally integrated into the LiMn0.5Ni0.5O 2 component to yield "composite" structures with domains having short-range order, rather than true solid solutions in which the cations are uniformly distributed within discrete layers. Li2TiO3 and Li2ZrO3 components are electrochemically inactive, whereas electrochemical activity can be induced into the Li2MnO 3 component above 4.3 V vs Li0. When cycled in lithium cells, xLi2MnO3·(1-x)LiMn0.5Ni 0.5O2 electrodes with x = 0.3 provide capacities in excess of 300 mA·h/g over the range 4.6-1.45 V.

UR - https://www.scopus.com/pages/publications/2542501844

U2 - 10.1021/cm0306461

DO - 10.1021/cm0306461

M3 - Article

AN - SCOPUS:2542501844

SN - 0897-4756

VL - 16

SP - 1996

EP - 2006

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 10

ER -

Electrochemical and structural properties of xLi₂M′O ₃·(1-x)LiMn_0.5Ni_0.5O₂ electrodes for lithium batteries (M′ = Ti, Mn, Zr; O ≤ x ≤ 0.3)

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