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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/2109

Title: Lithium extraction from orthorhombic lithium manganese oxide and the phase-transformation to spinel
Authors: Gummow, RJ
Liles, DC
Thackeray, MM
Keywords: Lithium
Manganese
Oxides
Spinels
Materials sciences
Issue Date: Dec-1993
Publisher: Pergamon-Elsevier Science Ltd
Citation: Gummow, RJ, Liles, DC and Thackeray, MM. 1993. Lithium extraction from orthorhombic lithium manganese oxide and the phase-transformation to spinel. Materials Research Bulletin, vol. 28(12), pp 1249-1256
Abstract: Orthorhombic LiMnO2 products, synthesised by the reaction of gamma-MnO2 and LiOH in argon at 600-620 degrees C using carbon as a reducing agent, have been evaluated as electrode materials in lithium cells. Products that contained a minor proportion of a lithiated spinel phase showed greater electrochemical activity than pure LiMnO2. On delithiation, LiMnO2 transforms irreversibly to a spinel-type structure. A mechanism for the orthorhombic LixMnO2-spinel phase transformation is proposed.
URI: http://hdl.handle.net/10204/2109
http://hdl.handle.net/10204/2109
ISSN: 0025-5408
Appears in Collections:Metal and metal processes
Analytical science
General science, engineering & technology
Discovery chemistry

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