Acidity-Aided Surface Modification Strategy to Enhance In Situ MnO₂ Deposition for High Performance Zn-MnO₂ Battery Prototypes.

ABSTRACT: Zn-MnO₂ batteries offer cost-effective, eco-friendly, and efficient solutions for large-scale energy storage applications. However, challenges, like irreversible cathode reactions, prolonged cyclability, and electrolyte stability during high-voltage operations limit their broader application. This study provides insight into the charge-discharge process through in situ deposition of active β-MnO₂ nanoflakes on a carbon-based current collector. The study elucidates the effect of pH and electrolyte concentration on chemical conversion reactions with Zn, in particular focus on their impact on the two-electron MnO₂/Mn²⁺ reaction crucial for high voltage operation. The electrolyte, characterized by being relatively lean in Mn²⁺ and with a t

SUBMITTER: Panda MR 

PROVIDER: S-EPMC12272039 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature