Self-assembled monolayer boosts the air-stability and electrochemical reversibility of O3-type layered oxides for sodium-ion batteries

This study develops a self-assembled, hydrophobic, and compact C 32 H 67 O 4 P layer on O3-NaNi 0.33 Fe 0.33 Mn 0.33 O 2 cathode, effectively shielding the electrode from air degradation and metal dissolution, thereby enhancing sodium-ion battery performance.