Thermal lithiation of manganese dioxide : effect of low lithium concentration (x ≤ 0.3 in Li <inf>x</inf>MnO <inf>2</inf>) on structure and electrochemical performance

Lehr, J ORCID: https://orcid.org/0000-0001-5698-7244, Dose, WM, Yakovleva, M and Donne, SW 2012, 'Thermal lithiation of manganese dioxide : effect of low lithium concentration (x ≤ 0.3 in Li <inf>x</inf>MnO <inf>2</inf>) on structure and electrochemical performance' , Journal of the Electrochemical Society, 159 (6) , A904-A908.

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Abstract

The Electrochemical Society, find out more Thermal Lithiation of Manganese Dioxide: Effect of Low Lithium Concentration (x ≤ 0.3 in LixMnO2) on Structure and Electrochemical Performance Joshua Lehr1, Wesley M. Dose1, Marina Yakovleva2 and Scott W. Donne3,4,1 Published 30 April 2012 • ©2012 ECS - The Electrochemical Society Journal of The Electrochemical Society, Volume 159, Number 6 Citation Joshua Lehr et al 2012 J. Electrochem. Soc. 159 A904 15 Total downloads 66 total citations on Dimensions. Turn on MathJax Get permission to re-use this article Share this article Share this content via email Share on Facebook (opens new window) Share on Twitter (opens new window) Share on Mendeley (opens new window) Article information Abstract The effect of lithium concentration on LixMnO2 (x ≤ 0.3) materials prepared by co-precipitation/heating is investigated. Lithium concentration determines the phase formed, with three different phases identified in the concentration range. Low levels of lithiation (x = 0.08) leads to the formation of a γ/β type MnO2 material. As the lithium concentration is increased to x = 0.15, a lithiated γ−MnO2 like phase is formed. Finally, at x = 0.28 tunnel structured monoclinic MnO2 is obtained. Increasing the concentration of lithium inhibits the formation of the undesired inactive Mn2O3 phase, which is formed upon heat-treatment of MnO2. At a 5 mA/g charge/discharge rate the monoclinic Li0.28MnO2 material gave the best performance, while at 30 mA/g the Li0.08MnO2 material proved superior.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: Journal of the Electrochemical Society
Publisher: Institute of Physics (IOP)/The Electrochemical Society
ISSN: 0013-4651
Related URLs:
Depositing User: J Lehr
Date Deposited: 11 Aug 2021 13:33
Last Modified: 27 Aug 2021 21:20
URI: http://usir.salford.ac.uk/id/eprint/50521

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