Andersen, Holly;
Lu, Yinan;
Borowiec, Joanna;
Parkin, Ivan P;
De Volder, Michael;
Deka Boruah, Buddha;
(2023)
Photo-enhanced lithium-ion batteries using metal-organic framework.
Nanoscale
10.1039/d3nr00257h.
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Abstract
The development of photo-enhanced lithium-ion batteries, where exposing the electrodes to light results in higher capacities, higher rate performance or self-charging, has recently gained substantial traction. The challenge in these devices lies in the realisation of photo-electrodes with good optical and electrochemical properties. Herein, we propose copperhexahydroxybenzene as the active photo-electrode material which both harvests light and stores energy. This material was mixed with reduced graphene oxide as a conductive additive and charge transfer medium to create photo-active electrodes. Under illumination, these electrodes show improved charge storage kinetics resulting in the photo-accelerated charging and discharging performance (i.e. specific capacities improvement from 107 mAh g-1 to 126 mAh g-1 at 200 mA g-1 and 79 mAh g-1 to 97 mAh g-1 at 2000 mA g-1 under 1 sun illumination as compared to dark).
| Type: | Article |
|---|---|
| Title: | Photo-enhanced lithium-ion batteries using metal-organic framework |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/d3nr00257h |
| Publisher version: | https://doi.org/10.1039/D3NR00257H |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. |
| Keywords: | Lithium-ion batteries, metal-organic framework, photo-cathodes. |
| 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.ucl.ac.uk/id/eprint/10163904 |
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