3D spiny AlF3/Mullite heterostructure nanofiber as solid-state polymer electrolyte fillers with enhanced ionic conductivity and improved interfacial compatibility

The 3D spiny AlF3/Mullite heterostructure nanofibers as solid-state polymer electrolyte fillers are successfully prepared for the first time. Benefiting from the formation of 3D interconnected networks and the properties of AlF3 nanofibers that allow for the uninterrupted transport and uniform deposition of lithium ions, the stable electrochemical properties of solid-state batteries assembled with the composite electrolyte can be obtained.