A Ternary Composite Nanofiber-Derived Thin Membrane Electrolyte for Solid-State Li Metal Batteries

We develop a novel membrane electrolyte comprising h-BN-doped PEO modified PVDF-HFP-nanofibers with high ionic conductivity (3.3 × 10 −4 S cm −1 ) and Li + transference number (0.74), endowing solid LiFePO 4 //Li batteries with excellent cyclability.