Atomic structure of a lithium-rich layered oxide material for lithium-ion batteries: Evidence of a solid solution

Karalee A. Jarvis; Zengqiang Deng; Lawrence F. Allard; Arumugam Manthiram; Paulo J. Ferreira

doi:10.1021/cm200831c

Atomic structure of a lithium-rich layered oxide material for lithium-ion batteries: Evidence of a solid solution

Karalee A. Jarvis, Zengqiang Deng, Lawrence F. Allard, Arumugam Manthiram, Paulo J. Ferreira

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

472 Scopus citations

Abstract

Li[Li_0.2Ni_0.2Mn_0.6]O₂, which is a cathode material for Li-ion batteries with enhanced capacity, has been examined, for the first time, with a combination of aberration-corrected scanning transmission electron microscopy (STEM), STEM computer simulations, and diffraction scanning transmission electron microscopy (D-STEM). These techniques, in combination with X-ray diffraction (XRD) and conventional electron diffraction (ED), indicate that this material is composed of a solid solution with C2/m monoclinic symmetry and multiple planar defects. In addition, we show that XRD and ED alone can give misleading information and cannot resolve the structure of these materials without the additional use of the aforementioned techniques.

Original language	English
Pages (from-to)	3614-3621
Number of pages	8
Journal	Chemistry of Materials
Volume	23
Issue number	16
DOIs	https://doi.org/10.1021/cm200831c
State	Published - Aug 23 2011
Externally published	Yes

Keywords

Li-ion batteries
characterization tools
nanostructures

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

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10.1021/cm200831c

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title = "Atomic structure of a lithium-rich layered oxide material for lithium-ion batteries: Evidence of a solid solution",

abstract = "Li[Li0.2Ni0.2Mn0.6]O2, which is a cathode material for Li-ion batteries with enhanced capacity, has been examined, for the first time, with a combination of aberration-corrected scanning transmission electron microscopy (STEM), STEM computer simulations, and diffraction scanning transmission electron microscopy (D-STEM). These techniques, in combination with X-ray diffraction (XRD) and conventional electron diffraction (ED), indicate that this material is composed of a solid solution with C2/m monoclinic symmetry and multiple planar defects. In addition, we show that XRD and ED alone can give misleading information and cannot resolve the structure of these materials without the additional use of the aforementioned techniques.",

keywords = "Li-ion batteries, characterization tools, nanostructures",

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year = "2011",

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doi = "10.1021/cm200831c",

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TY - JOUR

T1 - Atomic structure of a lithium-rich layered oxide material for lithium-ion batteries

T2 - Evidence of a solid solution

AU - Jarvis, Karalee A.

AU - Deng, Zengqiang

AU - Allard, Lawrence F.

AU - Manthiram, Arumugam

AU - Ferreira, Paulo J.

PY - 2011/8/23

Y1 - 2011/8/23

N2 - Li[Li0.2Ni0.2Mn0.6]O2, which is a cathode material for Li-ion batteries with enhanced capacity, has been examined, for the first time, with a combination of aberration-corrected scanning transmission electron microscopy (STEM), STEM computer simulations, and diffraction scanning transmission electron microscopy (D-STEM). These techniques, in combination with X-ray diffraction (XRD) and conventional electron diffraction (ED), indicate that this material is composed of a solid solution with C2/m monoclinic symmetry and multiple planar defects. In addition, we show that XRD and ED alone can give misleading information and cannot resolve the structure of these materials without the additional use of the aforementioned techniques.

AB - Li[Li0.2Ni0.2Mn0.6]O2, which is a cathode material for Li-ion batteries with enhanced capacity, has been examined, for the first time, with a combination of aberration-corrected scanning transmission electron microscopy (STEM), STEM computer simulations, and diffraction scanning transmission electron microscopy (D-STEM). These techniques, in combination with X-ray diffraction (XRD) and conventional electron diffraction (ED), indicate that this material is composed of a solid solution with C2/m monoclinic symmetry and multiple planar defects. In addition, we show that XRD and ED alone can give misleading information and cannot resolve the structure of these materials without the additional use of the aforementioned techniques.

KW - Li-ion batteries

KW - characterization tools

KW - nanostructures

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U2 - 10.1021/cm200831c

DO - 10.1021/cm200831c

M3 - Article

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SN - 0897-4756

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JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 16

ER -

Atomic structure of a lithium-rich layered oxide material for lithium-ion batteries: Evidence of a solid solution

Abstract

Keywords

UN SDGs

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