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

Abstract

Highlights Low pH value of electrolyte suppresses the charge capabilities of electrolytic Zn–Mn batteries. Unique solid phase alkaline properties of zinc sulfate hydroxide hydrate endow the electrolytic Zn–Mn batteries with greatly enhanced charge capabilities. The highly active Zn2Mn3O8·H2O nanorods array deposited during the charge process improve the discharge efficiency and stability of electrolytic Zn–Mn batteries.

Keywords

• Electrolytic aqueous zinc-manganese batteries
• Electrolyte pH value
• ZnO electrolyte additive
• Fast constant-voltage charging ability