Issue 6, 2022

Synergistic effect of multi-electron conversion and anion redox media chemistry for high-performance rechargeable aqueous Zn ion batteries

Abstract

A conversion-type BiOI cathode coupled with ZnI2 additive as a redox medium is proposed to electrochemically store charge. By integrating the redox-targeting reactions interrelated with I and Bi3+ redox reactions, a volumetric capacity of 3589 mA h cm−3 and cycling life of 16 000 cycles with a capacity decay of 0.006 mA h g−1 per cycle were reached. In-depth electrochemical mechanism research demonstrates that the high electrochemical performance results from the mutual reinforcing effects between Bi0/Bi3+ and I/I3 conversion reactions.

Graphical abstract: Synergistic effect of multi-electron conversion and anion redox media chemistry for high-performance rechargeable aqueous Zn ion batteries

Supplementary files

Article information

Article type
Communication
Submitted
01 Oct 2021
Accepted
04 Jan 2022
First published
19 Jan 2022

J. Mater. Chem. A, 2022,10, 2807-2812

Synergistic effect of multi-electron conversion and anion redox media chemistry for high-performance rechargeable aqueous Zn ion batteries

N. Liu, X. Wu, L. Fan, C. Zhao, Z. Guo, A. Chen, Y. Zhang and N. Zhang, J. Mater. Chem. A, 2022, 10, 2807 DOI: 10.1039/D1TA08515H

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