POLYMER ELECTROLYTE COMPOSITE INCLUDING PVC/PMMA BLEND AND ITS MANUFACTURING METHOD

摘要

The present invention relates to polymer electrolyte compositions comprising polyvinylchloride / poly (methylmethacrylate) (PVC / PMMA) blends, ethylene carbonate, propylene carbonate and lithium salts, and to methods for the convenient preparation of electrical polymer electrolyte compositions. According to the present invention, the polymer electrolyte composition including the PVC / PMMA blend is 18.0 to 45.0 wt% of PVC / PMMA blend, 30.0 to 45.0 wt% of ethylene carbonate, mixed with 90 to 10 wt% of PVC and 10 to 90 wt% of PMMA, Propylene carbonate 20.0 to 32.0 and lithium salt 2.0 to 7.0% by weight. The polymer electrolyte composition of the present invention is prepared by mixing PVC / PMMA blend, ethylene carbonate, propylene carbonate, and lithium salt mixed with PVC and PMMA, dissolving in a nonpolar solvent, casting and drying in a mold. The polymer electrolyte composition of the present invention is excellent in mechanical properties and ionic conductivity, as well as interfacial adhesion, can be easily prepared by mixing the components of the composition and can be prepared at a low cost because it uses a general-purpose polymer.