The active material, PQD_PW, was initially synthesized by blending PQD and PW in a 60:40 weight ratio using a mortar and pestle. For electrode fabrication, the active material was combined with conductive carbon (acetylene black, Alfa Aesar) and a binder (Teflonized acetylene black, TAB-2) in a weight ratio of 5:1:1 (in mg). The mixture was ground with ethanol as a medium until a self-supporting film was formed. This film was then pressed onto a stainless steel mesh (Goodfellow), serving as the current collector. To eliminate moisture, the electrode was dried overnight in a vacuum oven at 75 °C. Subsequently, the electrode was transferred into an argon-filled glove box with O₂ and H₂O levels maintained below 0.1 ppm. For half-cell assembly, the electrode was placed in a CR2016 coin-cell configuration with sodium as the counter electrode. A glass microfiber separator (Whatman, 1825-047, GF/F) was used to prevent direct contact between the electrodes, and the electrolyte comprising 1M NaPF₆ in ethylene