Rotation-Coupled Guest Anions Stabilize Polymer Solid-State Sodium-Metal Batteries.
Polymer solid-state sodium-metal batteries are constrained by sluggish Na+ migration and unstable sodium-metal interfaces, both of which are closely associated with poorly regulated solvation chemistry. Here we report a rotation-coupled guest-anion strategy in a poly(vinylidene fluoride-co-hexafluoropropylene)-based so...