Issue 8, 2023

Photo-enhanced lithium-ion batteries using metal–organic frameworks

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 copper-hexahydroxybenzene 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 mA h g−1 to 126 mA h g−1 at 200 mA g−1 and 79 mA h g−1 to 97 mA h g−1 at 2000 mA g−1 under 1 sun illumination as compared to dark).

Graphical abstract: Photo-enhanced lithium-ion batteries using metal–organic frameworks

Supplementary files

Article information

Article type
Paper
Submitted
16 jan 2023
Accepted
20 jan 2023
First published
26 jan 2023
This article is Open Access
Creative Commons BY-NC license

Nanoscale, 2023,15, 4000-4005

Photo-enhanced lithium-ion batteries using metal–organic frameworks

H. Andersen, Y. Lu, J. Borowiec, I. P. Parkin, M. De Volder and B. Deka Boruah, Nanoscale, 2023, 15, 4000 DOI: 10.1039/D3NR00257H

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