Choi, D;
Choy, K-L;
(2016)
Novel Nanostructured SiO2/ZrO2 Based Electrodes with Enhanced Electrochemical Performance for Lithium-ion Batteries.
Electrochimica Acta
, 218
pp. 47-53.
10.1016/j.electacta.2016.08.116.
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Abstract
In this article, a novel anode material with high electrochemical performance, made of elements abundant on the Earth, is reported for use in lithium ion batteries. A chemically synthesised material (SiO2/ZrO2) containing Si-O-Zr bonds, exhibits as much as 2.1 times better electrochemical performance at the 10th cycle than a physically mixed material (SiO2 + ZrO2) of the same elements. When compared to synthesized SiO2 or conventional graphite-based electrodes, the SiO2/ZrO2 anode shows superior capability and cycling performance. This superior performance is ascribed to the effect of ternary compounds, which contributes not only to increasing the packing density, but also to creating the Si-O-Zr bond that makes additional reactions between SiO2/ZrO2 and lithium ions possible. The Si-O-Zr bond also contributes to improved conductivity for SSZ and provides facile paths for charge transfer at the electrode/electrolyte interface. Therefore, the overall internal resistance in a battery would be decreased and better performance could thus be obtained, with this type of anode. In every result, the positive influence of the Si-O-Zr bonds in the anode of a lithium ion battery was confirmed.
| Type: | Article |
|---|---|
| Title: | Novel Nanostructured SiO2/ZrO2 Based Electrodes with Enhanced Electrochemical Performance for Lithium-ion Batteries |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.electacta.2016.08.116 |
| Publisher version: | http://dx.doi.org/10.1016/j.electacta.2016.08.116 |
| Language: | English |
| Additional information: | © 2016. This manuscript version is published under a Creative Commons Attribution Non-commercial Non-derivative 4.0 International licence (CC BY-NC-ND 4.0). This licence allows you to share, copy, distribute and transmit the work for personal and non-commercial use providing author and publisher attribution is clearly stated. Further details about CC BY licences are available at http://creativecommons.org/licenses/by/4.0. Access may be initially restricted by the publisher. |
| Keywords: | Science & Technology, Physical Sciences, Electrochemistry, Sio2, Zro2, Ternary Compound, Si-O-Zr Bond, Lithium Ion Batteries, Anode Material, Zro2-Sio2 System, Zirconia-Silica, Energy-Storage, Nanoparticles, Composite, Carbon, Sio2, Nano-Sio2, Alkoxides |
| 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 > MAPS Faculty Office UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1532084 |
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