ZnO Additive Boosts Charging Speed and Cycling Stability of Electrolytic Zn-Mn Batteries.

ABSTRACT: Electrolytic aqueous zinc-manganese (Zn-Mn) batteries have the advantage of high discharge voltage and high capacity due to two-electron reactions. However, the pitfall of electrolytic Zn-Mn batteries is the sluggish deposition reaction kinetics of manganese oxide during the charge process and short cycle life. We show that, incorporating ZnO electrolyte additive can form a neutral and highly viscous gel-like electrolyte and render a new form of electrolytic Zn-Mn batteries with significantly improved charging capabilities. Specifically, the ZnO gel-like electrolyte activates the zinc sulfate hydroxide hydrate assisted Mn²⁺ deposition reaction and induces phase and structure change of the deposited manganese oxide (Zn₂Mn₃O₈·H₂O nanorod

SUBMITTER: Wu J 

PROVIDER: S-EPMC10767122 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature