Unlocking High-Energy Metal Fluoride Cathodes through Modulated Interfacial Kinetics

core-shell structure achieves a notable capacity of ∼300 mAh/g at an average voltage of 2.8 V after 20 cycles. These mechanistic insights demonstrate that interfacial kinetics dictate the pathway of conversion reactions, highlighting the importance of modulating interfacial energy and lattice mismatch to unlock the broader potential of conversion cathodes.