Luebke, M;
Howard, D;
Armer, CF;
Gardecka, AJ;
Lowe, A;
Reddy, MV;
Liu, Z;
(2017)
High energy lithium ion battery electrode materials; enhanced charge storage via both alloying and insertion processes.
Electrochimica Acta
, 231
pp. 247-254.
10.1016/j.electacta.2017.02.063.
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Abstract
A series of nano-sized tin-doped metal oxides of titanium(IV), niobium(V) and vanadium(IV), were directly synthesized using a continuous hydrothermal process and used for further testing without any post-treatments. Each of the as-prepared powders was characterized via a range of analytical techniques including powder X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy and Brunauer-Emmett-Teller surface area measurements, as well as being investigated as an electrode material in a lithium-ion coin cell (vs lithium metal). All the tin-doped nanomaterials showed higher specific capacities compared to their undoped metal oxide counterparts. The increased charge storage was discussed to originate from the electrochemical activation of the tin dopant as an alloying material. Overall, this work presents a reliable method of combining stable insertion materials with high capacity tin alloying materials under scaled-up conditions.
| Type: | Article |
|---|---|
| Title: | High energy lithium ion battery electrode materials; enhanced charge storage via both alloying and insertion processes |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.electacta.2017.02.063 |
| Publisher version: | http://dx.doi.org/10.1016/j.electacta.2017.02.063 |
| Language: | English |
| Additional information: | © 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Science & Technology, Physical Sciences, Electrochemistry, continuous hydrothermal flow synthesis, lithium ion battery, anode, transition metal, alloy, IMPROVED ELECTROCHEMICAL PERFORMANCE, HIGH-CAPACITY, ANODE MATERIAL, HYDROTHERMAL SYNTHESIS, CONVERSION REACTION, ANATASE TIO2, SNO2 ANODE, NANOPARTICLES, HYBRID, LI |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS 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/1561985 |
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