Investigation of Al-doping effects on the NaFe0.5Mn0.5O2 cathode for na-ion batteries

Kee, Y., Dimov, N., Champet, S., Gregory, D. H. and Okada, S. (2016) Investigation of Al-doping effects on the NaFe0.5Mn0.5O2 cathode for na-ion batteries. Ionics, 22(11), pp. 2245-2248. (doi: 10.1007/s11581-016-1839-2)

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Abstract

P2-Na2/3MO2 materials have recently been investigated as promising high-capacity cathode hosts for Na-ion batteries. On the other hand, the Na-deficiency in these materials precludes a high energy density when coupled with Na-free anodes. As an alternative, O3-NaFeO2 and its various derivatives such as NaFe0.5Mn0.5O2 have been suggested and investigated. In this study, we dope Al in NaFe0.5Mn0.5O2 and investigate Al-doping effects on the electrochemical properties of the Na+ host. The Al-doped compound shows almost the same conductivity and diffusivity as the pristine structure. However, Al-doping enhances O3-P3 phase transition.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Champet, Mr Simon and Gregory, Professor Duncan
Authors: Kee, Y., Dimov, N., Champet, S., Gregory, D. H., and Okada, S.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Ionics
Publisher:Springer Verlag
ISSN:0947-7047
ISSN (Online):1862-0760
Published Online:27 September 2016
Copyright Holders:Copyright © 2016 The AuthorsSpringer-Verlag Berlin Heidelberg
First Published:First published in Ionics 22(11):2245-2248
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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