PEO-NaPF₆ Blended Polymer Electrolyte for Solid State Sodium Battery

Solid-state polymer electrolytes (SPEs) are proposed as promising candidates for application in sodium batteries to replace the organic liquid electrolytes for enhanced safety. In this study, we first verified the feasibility of PEO-NaPF 6 SPE in solid-state sodium batteries (SSBs). The explored PEO-NaPF 6 SPEs exhibit a relatively high ionic conductivity of ∼6.3 × 10 −4 S cm −1 at 80 °C, a large Na + transference number ( t Na+ ) of 0.58, and...