Tailoring the Solvation of Aqueous Zinc Electrolytes by Balancing Kosmotropic and Chaotropic Ions

O coordination, but this renders high viscosity electrolytes with reduced ion transport. Here, by balancing a combination of kosmotropic and chaotropic ions, specifically acetate (Ac) and guanidinium (Gua), it is possible to tailor their strong and weak coordination with water, respectively. This strategy results in a weakly solvated electrolyte with improved ion transport properties alongside stabilization of the Zn metal anode. Furthermore, our electrolyte also enhances the cathode stability, rendering an overall increase in the battery lifetime and performance. Hence, this electrolyte design strategy can be applied to the development of a new generation of AZBs.