Preparation and characterization of a new solvent-free polymer electrolyte based on spiroketal structure

Abstract

Solvent-free solid polymer electrolytes based on spiropolymers were prepared and their properties were confirmed by conductance, differential scanning calorimetry, and X-ray diffraction measurements. The spiropolymer was synthesized from the bicyclic diketone and pentaerythritol. The spiro-polyketal (SP) dissolves lithium perchlorate and the conductivity of the (SP) 1.5(LiClO4) 1 complex is 4.24 × 10-5 cm-1 at 30°C and 3.83 × 10-4 S cm-1 at 60°C.