Aqueous Zinc‐Bromine Battery with Highly Reversible Bromine Conversion Chemistry

• Published in: Angewandte Chemie International Edition Vol. 64; no. 20; pp. e202502386 - n/a
• Main Authors: Zhao, Xun, Hao, Junnan, Chen, Qianru, Zhang, Shao‐Jian, Wu, Han, Mao, Lei, Qiao, Shi‐Zhang
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 12.05.2025
• Edition: International ed. in English
• Subjects: Aqueous electrolytes; Bromine; Cathodes; Charge density; Discharge; electrolyte screen; Electrolytes; Electrolytic cells; KBr cathode; polybromide sequestration; static Zn−Br battery; suppressed shuttle; Zinc; Zinc salts; Zinc sulfate; polybromide sequestration; KBr cathode; suppressed shuttle; static Zn−Br battery; electrolyte screen

Br2/Br− conversion reaction with a high operating potential (1.85 V vs. Zn2+/Zn) is promising for designing high‐energy cathodes in aqueous Zn batteries. However, the ultrahigh solubility of polybromides causes significant shuttle effects, capacity deterioration, and self‐discharge, rendering the st...