Enhanced cycle ability of spinel LiMn2O4 by controlling the phase purity and structural strain

Yao, J., Shen, C., Zhang, P., Gregory, D. H. and Wang, L. (2012) Enhanced cycle ability of spinel LiMn2O4 by controlling the phase purity and structural strain. Journal of Physics and Chemistry of Solids, 73(11), pp. 1390-1395. (doi: 10.1016/j.jpcs.2012.07.006)

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Publisher's URL: http://dx.doi.org/10.1016/j.jpcs.2012.07.006

Abstract

By applying the annealing step during the solid-state synthesis, well-crystallized spinel LiMn<sub>2</sub>O<sub>4</sub> with high phase purity was fabricated. The sensitive effect of heating procedure on the structural and electrochemical properties of LiMn<sub>2</sub>O<sub>4</sub> product was investigated. It was found that preheat-treatment-calcinations-annealing process can effectively eliminate the impurity phase. The post-annealing process also leads to a better crystalline and suitable strain for the LiMn<sub>2</sub>O<sub>4</sub> product, which contributes to the enhanced cycling performance.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Yao, Mr Jinhan and Gregory, Professor Duncan
Authors: Yao, J., Shen, C., Zhang, P., Gregory, D. H., and Wang, L.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Journal of Physics and Chemistry of Solids
Publisher:Elsevier
ISSN:0022-3697
ISSN (Online):1879-2553

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