Benítez, A;
Di Lecce, D;
Elia, GA;
Caballero, A;
Morales, J;
Hassoun, J;
(2018)
A Lithium‐Ion Battery using a 3 D‐Array Nanostructured Graphene–Sulfur Cathode and a Silicon Oxide‐Based Anode.
ChemSusChem
, 11
(9)
pp. 1512-1520.
10.1002/cssc.201800242.
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Abstract
An efficient lithium‐ion battery was assembled by using an enhanced sulfur‐based cathode and a silicon oxide‐based anode and proposed as an innovative energy‐storage system. The sulfur–carbon composite, which exploits graphene carbon with a 3 D array (3DG‐S), was synthesized by a reduction step through a microwave‐assisted solvothermal technique and was fully characterized in terms of structure and morphology, thereby revealing suitable features for lithium‐cell application. Electrochemical tests of the 3DG‐S electrode in a lithium half‐cell indicated a capacity ranging from 1200 to 1000 mAh g⁻¹ at currents of C/10 and 1 C, respectively. Remarkably, the Li‐alloyed anode, namely, LiγSiOₓ-C prepared by the sol–gel method and lithiated by surface treatment, showed suitable performance in a lithium half‐cell by using an electrolyte designed for lithium–sulfur batteries. The LiγSiOₓ-C/3DG-S battery was found to exhibit very promising properties with a capacity of approximately 460 mAh gs⁻¹ delivered at an average voltage of approximately 1.5 V over 200 cycles, suggesting that the characterized materials would be suitable candidates for low‐cost and high‐energy‐storage applications.
| Type: | Article |
|---|---|
| Title: | A Lithium‐Ion Battery using a 3 D‐Array Nanostructured Graphene–Sulfur Cathode and a Silicon Oxide‐Based Anode |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/cssc.201800242 |
| Publisher version: | https://doi.org/10.1002/cssc.201800242 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | graphene, lithium-ion batteries, microwave chemistry, silicon, sulfur |
| 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 |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10062413 |
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