Interfacial Engineering With a Multifunctional LaPO4/LaF3 Coating Enables Durable 4.65 V LiCoO2 Cathodes With High-Rate Capability.
High-power fast-charging lithium-ion batteries (LIBs) are indispensable energy sources for electric vehicles and consumer electronics. LiCoO2 (LCO) offers remarkable energy density and high voltage but suffers from structural degradation and irreversible O3/H1-3 phase transition at high voltage (e.g., 4.65 V), thus lim...