Anion‐Reinforced Solvation Structure Enables Stable Operation of Ether‐Based Electrolyte in High‐Voltage Potassium Metal Batteries
Mengjia Gu,
Xunzhu Zhou,
Qian Yang
et al.
Abstract:Electrolytes with anion‐dominated solvation are promising candidates to achieve dendrite‐free and high‐voltage potassium metal batteries. However, it's challenging to form anion‐reinforced solvates at low salt concentrations. Herein, we construct an anion‐reinforced solvation structure at a moderate concentration of 1.5 M with weakly coordinated cosolvent ethylene glycol dibutyl ether. The unique solvation structure accelerates the desolvation of K+, strengthens the oxidative stability to 4.94 V and facilitate… Show more
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