An investigation of spinel-related and orthorhombic LiMn0₂ cathodes for rechargeable lithium batteries

Gummow, R.J., and Thackeray, M.M. (1994) An investigation of spinel-related and orthorhombic LiMn0₂ cathodes for rechargeable lithium batteries. Journal of the Electrochemical Society, 141 (5). pp. 1178-1182.

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Abstract

Cathode materials that have been synthesized by reduction of lithium-manganese-oxide and manganese-oxide precursors with hydrogen at 300 to 350°C and with carbon at 600°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]0₄ 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]0₄ spinel electrode (0 < x < 2).

Item ID: 27414
Item Type: Article (Research - C1)
ISSN: 1945-7111
Keywords: lithium ion battery; cathode; spinel; LiMnO2
Date Deposited: 09 Jul 2013 00:20
FoR Codes: 03 CHEMICAL SCIENCES > 0302 Inorganic Chemistry > 030206 Solid State Chemistry @ 30%
03 CHEMICAL SCIENCES > 0303 Macromolecular and Materials Chemistry > 030306 Synthesis of Materials @ 30%
03 CHEMICAL SCIENCES > 0306 Physical Chemistry (incl Structural) > 030606 Structural Chemistry and Spectroscopy @ 40%
SEO Codes: 85 ENERGY > 8506 Energy Storage, Distribution and Supply > 850602 Energy Storage (excl. Hydrogen) @ 100%
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