Synergistic Solvation Strategy for Low-Temperature Alkaline Zinc-Ferricyanide Flow Battery.

ABSTRACT: Alkaline zinc-ferricyanide flow batteries (AZFFBs) emerge as promising candidates for long-duration energy storage. However, at cryogenic temperatures, these systems suffer from electrolyte solidification, anodic zinc dendrite formation, zinc-related side reactions, and cathodic Fe(CN)₆ ^4- precipitation-induced capacity decay. Herein, we propose a synergistic solvation strategy in which Li⁺ and Cl^- jointly inhibit the formation of tetrahedral hydrogen bond networks, thereby lowering the liquid-solid transition peak temperature of both the anolyte and catholyte. Meanwhile, Cl^- is utilized to construct a water-poor solvation structure around Zn(OH)₄ ^2- to optimize zinc deposition and inhibit the side reactions, whil

SUBMITTER: Xin Y 

PROVIDER: S-EPMC12862133 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature