Atomic-Scale Unveiling of Hydrated Zn-Ion Insertion for Aqueous Rechargeable Batteries
Using atomic-column-resolved scanning transmission electron microscopy, the simultaneous intercalation of both H2O and Zn is directly visualized during discharge of Zn ions into a V2O5 cathode with an aqueous electrolyte. In particular, when further Zn insertion proceeds, multiple intermediate phases are clearly imaged at...