Abouelamaiem, DI;
Rasha, L;
He, G;
Neville, TP;
Millichamp, J;
Mason, TJ;
Jorge, AB;
... Brett, DJL; + view all
(2018)
Integration of supercapacitors into printed circuit boards.
Journal of Energy Storage
, 19
pp. 28-34.
10.1016/j.est.2018.06.016.
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Abstract
Physically integrated energy storage devices are gaining increasing interest due to the rapid development of flexible, wearable and portable electronics technology. For the first time, supercapacitor components have been integrated into a printed circuit board (PCB) construct. This proof-of-concept study paves the way for integrating supercapacitors into power electronics devices and hybridising with PCB fuel cells. Commercial Norit activated carbon (NAC) was used as the electrode material and was tested in two types of electrolytes, sodium sulfate (Na₂SO₄) aqueous electrolyte, and Na₂SO₄-polyvinyl alcohol (Na₂SO₄-PVA) gel electrolyte. Electrochemical measurements compare the SC-PCBs to standard two-electrode button-cell supercapacitors. A volumetric energy density of 0.56 mW h cm⁻³at a power density of 26 mW cm⁻³ was obtained in the solid-state SC-PCB system, which is over twice the values acquired in the standard cell configuration. This is due to the removal of bulky components in the standard cell, and/or decreased thickness of the overall device, and thus a decrease in the total volume of the SC-PCB configuration. The results show great potential for embedding supercapacitors into PCBs for a broad range of applications. In addition, further advantages can be realised through close physical integration with other PCB-based electrochemical power systems such as fuel cells.
| Type: | Article |
|---|---|
| Title: | Integration of supercapacitors into printed circuit boards |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.est.2018.06.016 |
| Publisher version: | https://doi.org/10.1016/j.est.2018.06.016 |
| Language: | English |
| Additional information: | © 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode). |
| Keywords: | Activated carbon, Hybrid systems, Printed circuit board, Supercapacitor, Integrated energy storage, Wearable power systems |
| 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/10052884 |
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