Tan, Lifu;
Kim, Byung-Man;
Pujari, Arvind;
He, Ze;
Boruah, Buddha Deka;
De Volder, Michael;
(2024)
Photothermal Enhancement of Prussian Blue Cathodes for Li-Ion Batteries.
Nano Letters
, 24
(30)
pp. 9147-9154.
10.1021/acs.nanolett.4c00752.
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Abstract
Photoenhanced batteries, where light improves the electrochemical performance of batteries, have gained much interest. Recent reports suggest that light-to-heat conversion can also play an important role. In this work, we study Prussian blue analogues (PBAs), which are known to have a high photothermal heating efficiency and can be used as cathodes for Li-ion batteries. PBAs were synthesized directly on a carbon collector electrode and tested under different thermally controlled conditions to show the effect of photothermal heating on battery performance. Our PBA electrodes reach temperatures that are 14% higher than reference electrodes using a blue LED, and a capacity enhancement of 38% was achieved at a current density of 1600 mA g-1. Additionally, these batteries show excellent cycling stability with a capacity retention of 96.6% in dark conditions and 94.8% in light over 100 cycles. Overall, this work shows new insights into the effects leading to improved battery performance in photobatteries.
| Type: | Article |
|---|---|
| Title: | Photothermal Enhancement of Prussian Blue Cathodes for Li-Ion Batteries |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.nanolett.4c00752 |
| Publisher version: | http://dx.doi.org/10.1021/acs.nanolett.4c00752 |
| Language: | English |
| Additional information: | 2024 The Authors. Published by American Chemical Society. This publication is licensed under CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/). |
| Keywords: | lithium-ion battery, photothermal enhancement, electrochemical impedance spectroscopy, light-enhanced electrochemical reactions, renewable energy technologies, hybrid energy storage, Prussian blue analogues |
| 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/10196763 |
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