Catalytic electrolytes enable fast reaction kinetics and temperature adaptability for aqueous zinc-bromine flow batteries.

ABSTRACT: Catalysts are widely used to improve electrode reactions in static batteries. However, due to aqueous flow batteries utilizing large volumes of electrolytes, previously reported non-flowable solid-phase catalysts are inadequate for addressing challenges such as low conversion ratios and electrolyte failure, especially under low-temperature conditions. Herein, we develop functionalized carbon quantum dot-based colloidal catalytic electrolytes for Zn-Br flow batteries. This approach deviates from conventional catalyst particles anchored on electrodes, which functions both in-electrolyte and at-interface, enhancing interactions between Br-redox pairs and active sites to accelerate Br-based reaction kinetics and optimize low-temperature adaptability. Unlike common Zn-Br systems, those using hi

SUBMITTER: Wei Z 

PROVIDER: S-EPMC12627457 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature