Face to Face at the Cathode Electrolyte Interphase: From Interface Features to Interphase Formation and Dynamics

Development of high-performing lithium-based batteries inevitably calls for a profound understanding and elucidation the reactivity at electrode–liquid electrolyte interface its impact on overall performance safety. The formation, composition, properties, mechanisms cathode interphase (CEI) formation function are still to large extent unknown most battery materials, whereas same is well considered solid negative electrodes in literature. In particular, high voltage regions >4.3 V, oxidative stability limit liquid electrolytes reached new mechanisms, involving surface active material beside decomposition, contribute interfacial nature CEI. Focusing cell chemistries, this review aims highlight less understood decomposition chemistry, dictated by components, as in-depth research physicochemical electrochemical properties CEI evolution positive electrode sub-surfaces.