“…In some studies, surface modification (i.e., surface coating and doping) has been utilized to stabilize the interface and address the aforementioned challenges. 2,8,14 Surface doping, by substituting the original ions with cations or anions such as B, 11 Ti, 7 Ta, 15 Ce, 16 V, 17 Mg, 18 and F, 19,20 aims to ensure steady the structure of Ni-rich cathode and enhance the lithium-ion diffusion kinetics. Surface coating is also an effective approach to achieve superior electrochemical performances due to protecting the Ni-rich cathode from HF, cleaning the detrimental surface functional groups (i.e., Li 2 O, LiOH, or Li 2 CO 3 ) and stabilizing the cathode/electrolyte interface as the conducting media for Li ion and electron.…”