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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/2126

Title: Reinvestigation of the structures of lithium-cobalt-oxides with neutron-diffraction data
Authors: Gummow, RJ
Liles, DC
Thackeray, MM
David, WIF
Keywords: Lithium
Cobalt
Oxides
Spinels
Materials sciences
Issue Date: Nov-1993
Publisher: Pergamon-Elsevier Science Ltd
Citation: Gummow, RJ, et al. 1993. Reinvestigation of the structures of lithium-cobalt-oxides with neutron-diffraction data. Materials Research Bulletin, vol. 28(11), pp 1177-1184
Abstract: The structures of LT-LiCoO2 (synthesised by reaction of Li2CO3 and CoCO3 at 400-degrees-C) and its delithiated product LT-Li0.4CoO2 have been reinvestigated by neutron powder diffraction. Despite an unusually close similarity between diffraction profiles that makes it difficult to determine whether the structures are layered or spinel-like, the data confirm that the preferred structure of the LT-LiCoO2 sample made for this study is one that has a cobalt distribution which is intermediate between an ideal layered and an ideal lithiated spinel structure. On the other hand, refinement of the data of LT-Li0.4CoO2 prepared by reacting LT-LiCoO2 with acid shows, unequivocally, that a spinel-type structure is formed. These structures are discussed in relation to previously reported electrochemical data obtained from Li/LT-LiCoO2 cells.
URI: http://hdl.handle.net/10204/2126
http://hdl.handle.net/10204/2126
ISSN: 0025-5408
Appears in Collections:General science, engineering & technology

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