Regulating Surface Oxygen Activity by Perovskite‐Coating‐Stabilized Ultrahigh‐Nickel Layered Oxide Cathodes

Ultrahigh-Ni layered oxides have been proposed as promising cathodes to fulfill the range demand of electric vehicles, yet they are still haunted by compromised cyclability and thermal robustness. The state-of-the-art surficial coating is designed to solve the instability via blocking the physical contact between the electrolyte and the highly active Ni