IMPROVED CAPACITY RETENTION IN RECHARGEABLE 4V LITHIUM LITHIUM MANGANESE OXIDE (SPINEL) CELLS

Authors
GUMMOW RJ DEKOCK A THACKERAY MM
Citation
Rj. Gummow et al., IMPROVED CAPACITY RETENTION IN RECHARGEABLE 4V LITHIUM LITHIUM MANGANESE OXIDE (SPINEL) CELLS, Solid state ionics, 69(1), 1994, pp. 59-67
Citations number
14
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
69
Issue
1
Year of publication
1994
Pages
59 - 67
Database
ISI
SICI code
0167-2738(1994)69:1<59:ICRIR4>2.0.ZU;2-6
Abstract
The rechargeable capacity of 4 V LixMn2O4 spinel cathodes (0 < x less- than-or-equal-to 1) has been improved by modifying the composition of the spinel electrode. Stable rechargeable capacities in excess of 100 mAh/g in flooded-electrolyte lithium cells can be achieved if LiMn2O4 is doped with mono- or multivalent cations (e.g. Li+, Mg2+, Zn2+) or, alternatively, with additional oxygen to increase the average manganes e-ion oxidation state marginally above 3.5.