Synergistic interfacial stabilization and kinetics acceleration in olivine cathodes enabled by rare-earth perovskite engineering

Abstract

Perovskite La_xSr_1−xMnO₃ (LSM) coatings are applied to LiMn_xFe_1−xPO₄ (LMFP) to suppress dissolution, mitigate Jahn-Teller-induced lattice degradation, and improve interfacial charge transfer. The multifunctional LSM layer aims to reconcile interfacial stability with fast kinetics, enhancing cycling durability and rate capability of high-voltage olivine cathodes.