Dual-function additive enables a self-regulatory mechanism to balance cathode-anode interface demands in Zn‖MnO₂ batteries.

ABSTRACT: The poor reversibility of the zinc (Zn) anodes and the irreversible deposition/dissolution of Mn²⁺/MnO₂ significantly impede the commercialization of Zn-Mn aqueous batteries (ZMABs). In reducing the difference between the desired interfacial reaction environments of the cathode and anode, we found that they face the same problem of interference-the generation of irreversible corrosion products. Herein, we have introduced a novel self-regulatory mechanism. This mechanism involves the addition of sodium dihydrogen phosphate, which shifts from passive protection to active regulation. It effectively captures OH^- ions, prevents corrosion product formation, and facilitates the in situ generation of a solid electrolyte interface (SEI) film. This modificatio

SUBMITTER: Han Y 

PROVIDER: S-EPMC11304731 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature