The 2e- vs. 4e- Pathways for ORR in Rechargeable Zinc-Air Batteries | Synapse
February 26, 2026
The 2e- vs. 4e- Pathways for ORR in Rechargeable Zinc-Air Batteries
Key Points
The study aims to compare the efficiency of 2-electron and 4-electron pathways for oxygen reduction in zinc-air batteries.
Comparison of electrochemical pathways in zinc-air batteries
Analysis of energy density performance
Evaluation of sustainability factors
The 4-electron pathway shows a significantly higher energy conversion efficiency than the 2-electron pathway.
Zinc-air batteries utilizing the 4-electron mechanism can achieve higher theoretical energy densities.
Findings suggest that optimizing these pathways could enhance the viability of zinc-air batteries for sustainable energy.
Abstract
Zinc-air batteries (ZABs) represent one of the most promising technologies for sustainable energy storage, boasting a high theoretical energy density of 1086 Wh kg-1 that far exceeds that of conventional...