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Examining the effect of nanosized Mg₀.₆Ni₀.₄O and Al₂O₃ additives on S/polyaniline cathodes for lithium–sulphur batteries

Yermukhambetova, A; Bakenov, Z; Zhang, Y; Darr, JA; Brett, DJL; Shearing, PR; (2016) Examining the effect of nanosized Mg₀.₆Ni₀.₄O and Al₂O₃ additives on S/polyaniline cathodes for lithium–sulphur batteries. Journal of Electroanalytical Chemistry , 780 pp. 407-415. 10.1016/j.jelechem.2015.10.032. Green open access

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Abstract

Nanostructured magnesium nickel oxide Mg₀.₆Ni₀.₄O and alumina Al₂O₃ were studied as additives to sulphur/polyaniline (S/PANI) composites via wet ball-milling of sulphur and polyaniline followed by heat treatment. Metal oxide nanoparticles, which have small particle size, porous structure and high specific surface area to volume ratio, are expected to be catalytic for chemical reactions, including electron transfer and are able to adsorb lithium polysulphides. The composites were characterized by SEM and electrochemical methods. Cyclic voltammetry studies suggest that the alumina additive acts differently to the Mg₀.₆Ni₀.₄O. The results suggest that although the alumina additive improves the S/PANI composite performance as a lithium–sulphur battery cathode, the use of Mg₀.₆Ni₀.₄O is more effective.

Type: Article
Title: Examining the effect of nanosized Mg₀.₆Ni₀.₄O and Al₂O₃ additives on S/polyaniline cathodes for lithium–sulphur batteries
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.jelechem.2015.10.032
Publisher version: http://dx.doi.org/10.1016/j.jelechem.2015.10.032
Language: English
Additional information: © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords: Al₂O₃ coating, Mg₀.₆Ni₀.₄O coating, Cathode materials, S/PANI composites, Lithium/sulphur batteries
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/1500472
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