Cathode materials that have been synthesized by reduction of lithium-manganese- Cathode materials that have been synthesized by reduction of lithium-manganese-oxide and manganese-oxide precursors with hydrogen at 300 to 350-degrees-C, and with carbon at 600-degrees-C have been evaluated in rechargeable lithium cells. The cathodes which initially have a composition close to LiMnO2 contain structures related to the lithiated-spinel phase Li2 [Mn2] O4 and/or orthorhombic LiMnO2. The orthorhombic LiMnO2 component transforms gradually to a spinel structure on cycling. These cathodes are significantly more tolerant to repeated lithium insertion and extraction, when cycled over both the 4 and 3 V regions, than a standard Lix [Mn2] O4 spinel electrode (0 < x < 2).
Reference:
Gummow, RJ and Thackeray MM. 1994. Investigation of spinel-related and orthorhombic LiMNO2 cathodes for rechargeable lithium batteries. Journal of the Electrochemical Society, vol. 141(5), pp 1178-1182
Gummow, R., & Thackeray, M. (1994). Investigation of spinel-related and orthorhombic LiMNO2 cathodes for rechargeable lithium batteries. http://hdl.handle.net/10204/2128
Gummow, RJ, and MM Thackeray "Investigation of spinel-related and orthorhombic LiMNO2 cathodes for rechargeable lithium batteries." (1994) http://hdl.handle.net/10204/2128
Gummow R, Thackeray M. Investigation of spinel-related and orthorhombic LiMNO2 cathodes for rechargeable lithium batteries. 1994; http://hdl.handle.net/10204/2128.
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