Solid‐Electrolyte Interphase for Ultra‐Stable Aqueous Dual‐Ion Storage (Adv. Energy Mater. 7/2023)

Aqueous Lithium‐Ion Batteries In article number 2203532, Jiena Weng, Wei Huang, and co‐workers introduce a robust aqueous solid–electrolyte interphase (SEI) for aqueous lithium‐ion batteries (ALIBs), using a ladderized heterocyclic polymer electrode. Long–term calendar life is realized over 80 days in a “water‐in‐salt” electrolyte. The proton co‐intercalation is considered to be another water elimination path to trigger the formation of SEI.