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Title: Layered LiCoO{sub 2} with a different oxygen stacking (O2 structure) as a cathode material for rechargeable lithium batteries

Abstract

O2-LiCoO{sub 2} was prepared from Na{sub 2/3}CoO{sub 2} by ion exchange in LiBr dissolved in hexanol. The structure of O2-LiCoO{sub 2} was investigated by X-ray diffraction and in situ X-ray diffraction during electrochemical charging. The possibility of application as cathode materials in rechargeable lithium batteries was investigated. The authors find that the electrochemical properties of O2-LiCoO{sub 2} remains stable and does not convert to the thermodynamically stable 03-LiCoO{sub 2}. Both O2 and O3-Li{sub x}CoO{sub 2} show a strong feature in their differential capacity vs. voltage at x near one-half, which is probably caused by the ordering of Li atoms within each layer, suggesting that this is not strongly perturbed by the details of the stacking of the CoO{sub 2} sheets. Finally, the reactivity of O2-Li{sub x}CoO{sub 2} with electrolyte was studied by differential scanning coulometry of charged cathodes and compared to that of conventional O3-Li{sub x}CoO{sub 2}-O2-LiCoO{sub 2} shows similar reactivity.

Authors:
; ;
Publication Date:
Research Org.:
Dalhousie Univ., Halifax, Nova Scotia (CA)
OSTI Identifier:
20023339
Resource Type:
Journal Article
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 147; Journal Issue: 2; Other Information: PBD: Feb 2000; Journal ID: ISSN 0013-4651
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; LITHIUM OXIDES; COBALT OXIDES; CATHODES; METAL-METAL OXIDE BATTERIES; CRYSTAL STRUCTURE; ELECTRICAL PROPERTIES

Citation Formats

Paulsen, J M, Mueller-Neuhaus, J R, and Dahn, J R. Layered LiCoO{sub 2} with a different oxygen stacking (O2 structure) as a cathode material for rechargeable lithium batteries. United States: N. p., 2000. Web. doi:10.1149/1.1393225.
Paulsen, J M, Mueller-Neuhaus, J R, & Dahn, J R. Layered LiCoO{sub 2} with a different oxygen stacking (O2 structure) as a cathode material for rechargeable lithium batteries. United States. doi:10.1149/1.1393225.
Paulsen, J M, Mueller-Neuhaus, J R, and Dahn, J R. Tue . "Layered LiCoO{sub 2} with a different oxygen stacking (O2 structure) as a cathode material for rechargeable lithium batteries". United States. doi:10.1149/1.1393225.
@article{osti_20023339,
title = {Layered LiCoO{sub 2} with a different oxygen stacking (O2 structure) as a cathode material for rechargeable lithium batteries},
author = {Paulsen, J M and Mueller-Neuhaus, J R and Dahn, J R},
abstractNote = {O2-LiCoO{sub 2} was prepared from Na{sub 2/3}CoO{sub 2} by ion exchange in LiBr dissolved in hexanol. The structure of O2-LiCoO{sub 2} was investigated by X-ray diffraction and in situ X-ray diffraction during electrochemical charging. The possibility of application as cathode materials in rechargeable lithium batteries was investigated. The authors find that the electrochemical properties of O2-LiCoO{sub 2} remains stable and does not convert to the thermodynamically stable 03-LiCoO{sub 2}. Both O2 and O3-Li{sub x}CoO{sub 2} show a strong feature in their differential capacity vs. voltage at x near one-half, which is probably caused by the ordering of Li atoms within each layer, suggesting that this is not strongly perturbed by the details of the stacking of the CoO{sub 2} sheets. Finally, the reactivity of O2-Li{sub x}CoO{sub 2} with electrolyte was studied by differential scanning coulometry of charged cathodes and compared to that of conventional O3-Li{sub x}CoO{sub 2}-O2-LiCoO{sub 2} shows similar reactivity.},
doi = {10.1149/1.1393225},
journal = {Journal of the Electrochemical Society},
issn = {0013-4651},
number = 2,
volume = 147,
place = {United States},
year = {2000},
month = {2}
}