Cover Feature: Highly Concentrated KTFSI : Glyme Electrolytes for K/Bilayered‐V₂O₅ Batteries (Batteries & Supercaps 3/2020)

The Cover Feature shows a battery cell consisting of the bilayered-V2O5 cathode, potassium metal anode, and highly concentrated KTFSI0.45:glyme electrolyte. Because of the low fraction of free glyme molecules in the highly concentrated electrolyte, the anodic decomposition of electrolyte itself and the dissolution (corrosion) of the Al current collectors are significantly reduced and even suppressed, leading to the improved cycling ability of the K//V2O5 battery.More information can be found in the Article by X. Liu et al.