▎ 摘　　要

NOVELTY - Preparing doped graphene-polyethylene glycol based polymer conversion film comprises (i) heating the polyethylene glycol-based polymer, cyclodextrin-based molecule and end-capped polymer at 40-60℃, and dissolving in a liquid solvent to obtain three liquid solutions; (ii) mixing the above three liquid solutions, stirring for 12-14 hours, adding the doped graphene additive, and heating and stirring for 5-48 hours to obtain a mixed solution; (iii) casting the mixed solution on a glass plate to form a film, and ultrasonically treating in the conversion solution at 40-60℃ to form a conversion film; (iv) fixing the conversion film on the frame, and vacuum drying at 70-135℃ to form a porous polymer; and (v) soaking porous polymer in an electrolyte solution containing lithium salt or sodium salt and ultrasonically treating for 12 hours. USE - The method is useful for preparing doped graphene-polyethylene glycol based polymer conversion film. ADVANTAGE - The conversion film has liquid absorption and liquid retention capacity, high temperature resistance performance, ionic conductivity, surface impedance and battery compatibility.