Stabilizing the Structure and Enhancing the Kinetics of O3‐Type Layered Cathodes for High‐Performance Sodium‐Ion Batteries via Targeted Multi‐Element Synergistic Doping

) and outstanding cycling stability (76.2% capacity retention) over 300 cycles. This work underscores the efficacy of multi-site synergistic doping strategy in designing high-performance layered oxide cathodes for practical SIBs.