Low‐Concentration Hydrated Eutectic Electrolyte Design for High‐Performance Aqueous K‐Ion Batteries
Aqueous K‐ion batteries (AKIBs) hold promising potential for large‐scale energy storage due to high safety, environmental friendliness, and low cost. However, traditional aqueous electrolytes are limited by a narrow electrochemical stability window (ESW), while water‐in‐salt electrolytes face challenges such as hig...