| abstract |
The present application provides a preparation method of a three-dimensional interconnected multi-level macroporous structure gel polymer electrolyte, comprising: (1) after uniformly mixing 1,3-propane sultone and acetonitrile, adding to dimethacrylate In the mixture of methylaminoethyl ester and acetonitrile, a white precipitate is obtained, which is repeatedly suction filtered and centrifugally washed with acetonitrile and acetone to obtain sulfobetaine methacrylate monomer; (2) chitosan and polyvinyl alcohol are added to the plant; In the acid solution, polyvinyl alcohol/chitosan solution is obtained; (3) taking the polyvinyl alcohol/chitosan solution in step (2), adding acrylamide and sulfobetaine methacrylate monomer, N,N ‑ Methylenebisacrylamide and ammonium persulfate are mixed uniformly, and then cast into a mold to form a gel; (4) The dried gel is vacuum-soaked to obtain a hydrogel electrolyte with ultra-high ionic conductivity, especially The ionic conductivity was as high as 2.48 S/cm in 6 mol/L KOH electrolyte and 1.40 S/cm in 1 mol/L H 2 SO 4 electrolyte. |