Rare earth-mediated synergistic lattice stabilization and interface protection for suppressed phase transition and superior electrochemical performance in Ni-rich cathodes

Spray-drying/high-temperature solid-state strategy simultaneously forms ≈3 nm LiSmO2 coating & Sm-dopes Ni-rich cathodes, stabilizing lattice/interface, suppressing side reactions, delivering 94.5% retention (150 cycles, 1.0C) & 153.49 mA h g−1 at 10C.