Composite Solid Polymer Electrolytes Based on PEO and Surface-Modified Al2O3 Fillers for Solid-State Sodium Ion Batteries
Poly(ethylene oxide) (PEO)-based solid polymer electrolytes suffer from low ionic conductivity and limited Na+ transport capability, which restrict their application in solid-state sodium metal batteries. Herein, a Na+-coordinating filler (Al2O3@KHMF) is prepared by grafting organic chains onto the Al2O3 surface thro...