Spinel anodes for lithium-ion batteries

Anodes of Li[sub 4]Mn[sub 5]O[sub 12], and Li[sub 4]Ti[sub 5]O[sub 12] with a spinel-type structure have been evaluated in room-temperature lithium cells. The cathodes that were selected for this study were the stabilized spinels, Li[sub 1.03]Mn[sub 1.97]O[sub 4] and LiZn[sub 0.025]Mn[sub 1.95]O[sub...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 1994-11, Vol.141 (11), p.L147-L150
Main Authors: FERG, E, GUMMOW, R. J, DE KOCK, A, THACKERAY, M. M
Format: Article
Language:English
Subjects:
250902 > Energy Storage-- Batteries-- Performance & Testing
ALKALI METAL COMPOUNDS
ANODES
CATHODES
CHEMISTRY
DATA
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRODES
Electrodes: preparations and properties
ENERGY STORAGE
Exact sciences and technology
EXPERIMENTAL DATA
General and physical chemistry
INFORMATION
LITHIUM COMPOUNDS
MANGANATES
MANGANESE COMPOUNDS
NUMERICAL DATA
Other electrodes
OXYGEN COMPOUNDS
PERFORMANCE TESTING
TESTING
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS 250903 > Energy Storage-- Batteries-- Materials, Components, & Auxiliaries
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Summary:Anodes of Li[sub 4]Mn[sub 5]O[sub 12], and Li[sub 4]Ti[sub 5]O[sub 12] with a spinel-type structure have been evaluated in room-temperature lithium cells. The cathodes that were selected for this study were the stabilized spinels, Li[sub 1.03]Mn[sub 1.97]O[sub 4] and LiZn[sub 0.025]Mn[sub 1.95]O[sub 4], and layered LiCoO[sub 2]. The electrochemical data demonstrated that Li[sup +] ions will shuttle between two transition-metal host structures (anode and cathode) at a reasonably high voltage with a concomitant change in the oxidation state of the transition metal cations so that the Li[sup +] ions do not reduce to the metallic state at the anode during charge. These cells reduce the safety hazards associated with cells containing metallic-lithium, lithium-alloy, and lithium-carbon anodes.
ISSN:0013-4651
1945-7111
DOI:10.1149/1.2059324