Gongrui Wang

Feb 13, 2024 | pubs.rsc.org | Zhihong Bi |Zonglin Yi |Gongrui Wang |Anping Zhang

Ultrathin dense LiF coverage coupled with a near-surface gradient fluorination lattice enables fast-charging long-life 4.6 V LiCoO2 LiCoO2 (LCO) is a leading cathode material of lithium-ion batteries in consumer electronics. However, practical applications of high-voltage fast charging are hampered by unstable interfacial structures and unfavorable phase transitions arising from the superimposed high-flux Li+ diffusion of LCO during deep de-lithiation.