Suppressing Aluminum Self-Corrosion and Hydrogen Evolution in Alkaline Aluminum–Air Batteries via Stable Interfacial Reorganization and Hydrophobic Shielding Induced by Tetrabutylphosphonium Methanesulfonate
This study demonstrates that tetrabutylphosphonium methanesulfonate (TBPMS) acts as an effective multifunctional additive in alkaline aluminum–air batteries by forming a stable, hydrophobic interfacial layer that significantly suppresses aluminum self-corrosion and parasitic hydrogen evolution through interfacial reorganization and surface smoothing.