Promotion of Li+ desolvation and efficient cathode interphase formation by 4-aminobenzoic multifunctional electrolyte additive

•4-ABA is used as a multifunctional electrolyte additive in cells.•4-ABA facilitates the desolvation of Li+ and increases the Li+ transference number.•Preferential oxidation of 4-ABA helps to build a protective CEI film.•CEI film suppresses electrolyte decomposition and prevents NCA destruction.