Chemical delithiation and exfoliation of LixCoO2

Angelika Basch; Liliana de Campo; Jörg Albering; John W. White

doi:10.1016/j.jssc.2014.08.011

Chemical delithiation and exfoliation of LixCoO2

Angelika Basch^*, Liliana de Campo, Jörg Albering, John W. White

^*Corresponding author for this work

Research Assistance of the Vice Rector for Research (93001)

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

Abstract

Progressive chemical .delithiation of commercially available lithium cobalt oxide (LiCoO 2 ) showed consecutive changes in the crystal properties. Rietveld refinement of high resolution X-ray and neutron diffraction revealed an increased lattice parameter c and a reduced lattice parameter a for chemically
delithiated samples. Using electron microscopy we have also followed the changes in the texture of the samples towards what we have found is a critical layer stoichiometry of about LixCoO2 with x ¼1/3 that causes the grains to exfoliate. The pattern of etches by delithiation suggests that unrelieved strain fields
may produce chemical activity.

Original language	English
Pages (from-to)	102-110
Journal	Journal of Solid State Chemistry
Volume	220
DOIs	https://doi.org/10.1016/j.jssc.2014.08.011
Publication status	Published - 2014

Fields of Expertise

Advanced Materials Science

Treatment code (Nähere Zuordnung)

Basic - Fundamental (Grundlagenforschung)
Application
Experimental

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10.1016/j.jssc.2014.08.011Licence: CC BY 4.0

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title = "Chemical delithiation and exfoliation of LixCoO2",

abstract = "Progressive chemical .delithiation of commercially available lithium cobalt oxide (LiCoO 2 ) showed consecutive changes in the crystal properties. Rietveld refinement of high resolution X-ray and neutron diffraction revealed an increased lattice parameter c and a reduced lattice parameter a for chemicallydelithiated samples. Using electron microscopy we have also followed the changes in the texture of the samples towards what we have found is a critical layer stoichiometry of about LixCoO2 with x ¼1/3 that causes the grains to exfoliate. The pattern of etches by delithiation suggests that unrelieved strain fieldsmay produce chemical activity.",

author = "Angelika Basch and {de Campo}, Liliana and J{\"o}rg Albering and White, {John W.}",

year = "2014",

doi = "10.1016/j.jssc.2014.08.011",

language = "English",

volume = "220",

pages = "102--110",

journal = "Journal of Solid State Chemistry",

issn = "1095-726X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Chemical delithiation and exfoliation of LixCoO2

AU - Basch, Angelika

AU - de Campo, Liliana

AU - Albering, Jörg

AU - White, John W.

PY - 2014

Y1 - 2014

N2 - Progressive chemical .delithiation of commercially available lithium cobalt oxide (LiCoO 2 ) showed consecutive changes in the crystal properties. Rietveld refinement of high resolution X-ray and neutron diffraction revealed an increased lattice parameter c and a reduced lattice parameter a for chemicallydelithiated samples. Using electron microscopy we have also followed the changes in the texture of the samples towards what we have found is a critical layer stoichiometry of about LixCoO2 with x ¼1/3 that causes the grains to exfoliate. The pattern of etches by delithiation suggests that unrelieved strain fieldsmay produce chemical activity.

AB - Progressive chemical .delithiation of commercially available lithium cobalt oxide (LiCoO 2 ) showed consecutive changes in the crystal properties. Rietveld refinement of high resolution X-ray and neutron diffraction revealed an increased lattice parameter c and a reduced lattice parameter a for chemicallydelithiated samples. Using electron microscopy we have also followed the changes in the texture of the samples towards what we have found is a critical layer stoichiometry of about LixCoO2 with x ¼1/3 that causes the grains to exfoliate. The pattern of etches by delithiation suggests that unrelieved strain fieldsmay produce chemical activity.

UR - http://www.sciencedirect.com/science/article/pii/S0022459614003594

U2 - 10.1016/j.jssc.2014.08.011

DO - 10.1016/j.jssc.2014.08.011

M3 - Article

SN - 1095-726X

VL - 220

SP - 102

EP - 110

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

ER -

Chemical delithiation and exfoliation of LixCoO2

Abstract

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Treatment code (Nähere Zuordnung)

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