Single‐Ion‐Conducting Hydrogel Electrolytes Based on Slide‐Ring Pseudo‐Polyrotaxane for Ultralong‐Cycling Flexible Zinc‐Ion Batteries

. Moreover, the flexible ZIBs display stable electrochemical performance under harsh conditions, such as bending, cutting, puncturing, and soaking. This work provides a simple design strategy for single-ion-conducting hydrogel electrolytes, which could pave the way for long-life aqueous batteries.