PREPARATION METHOD OF SOLID POLYMER ELECTROLYTIC COMPOSITE AND LITHIUM POLYMER CELL EMPLOYING SOLID POLYMER ELECTROLYTIC COMPOSITE

摘要

The present invention is a solid polymer electrolyte composite material for a lithium polymer battery prepared in the form of a film using a solution prepared by dissolving polyethylene oxide and lithium salt in an organic solvent, the mixture is prepared by further mixing medium-porous nanosilica The present invention relates to a solid polymer electrolyte composite material, a manufacturing method thereof, and a lithium polymer battery using the same.;In the solid polymer electrolyte composite material of the present invention, the mechanical properties are improved by using medium porosity nanosilica as a filler, and the electrical properties are improved because the medium porosity nanosilica decreases the crystalline region of the polyethylene oxide polymer to increase the ionic conductivity. Is improved. Therefore, the solid polymer electrolyte composite material is environmentally friendly and there is no risk of explosion and leakage, which can be usefully used in the lithium polymer battery business.;Secondary battery, polymer electrolyte composite material, polyethylene oxide, filler, lithium salt