Controlling Ionic Conductivity, Electrochemical Stability, and Interfacial Contact With Ionogel Electrolytes in Solid‐State Sodium‐Metal Batteries
Sodium‐ion batteries are promising as a cost‐effective and sustainable alternative to lithium‐ion batteries because they rely less on critical raw materials. However, most sodium‐ion batteries use flammable liquid electrolytes. Replacing these with nonflammable solid‐like electrolytes can improve safety, reduce leaka...