Holistic bulk-to-surface tailoring of Ni-rich cathodes for unlocking superior electrochemical stability

protective layer serves as a robust physical barrier against electrolyte corrosion while effectively scavenging acidic species, reducing TM dissolution, and mitigating interfacial side reactions. The comprehensively regulated NCM83 cathode exhibits exceptional electrochemical performance, maintaining 94.4% capacity retention after 1000 cycles at 1C in a pouch-type full cell. This study presents an innovative approach that combines an internal multi-site lattice with an external surface structure for developing advanced Ni-rich cathodes.