Issue 20, 2023

An all-solid-state photo-rechargeable battery based on Cs3Bi2I9

Abstract

Here, we present a new two-electrode photo-rechargeable FTO/TiO2/Cs3Bi2I9/Pt/FTO system. The key material is the photoactive lead-free perovskite Cs3Bi2I9, which performs photoelectric conversion and provides energy storage. This study is the first example of a battery system in which charging and discharging are based on bismuth redox chemistry. In the photo-charged state, the fabricated battery has an open-circuit voltage of ∼0.28 V in the dark. With a series-connected pack of these batteries, an LED was lit for tens of seconds in the dark.

Graphical abstract: An all-solid-state photo-rechargeable battery based on Cs3Bi2I9

Supplementary files

Article information

Article type
Communication
Submitted
07 Dec 2022
Accepted
06 Feb 2023
First published
15 Feb 2023

Chem. Commun., 2023,59, 2911-2914

An all-solid-state photo-rechargeable battery based on Cs3Bi2I9

R. Zhang, Z. Chen, J. Ma, P. Zhang, M. Liu, X. Li, R. Zhao, J. Tang, Z. Ren and S. Li, Chem. Commun., 2023, 59, 2911 DOI: 10.1039/D2CC06662A

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