| 摘要 |
PURPOSE: A solid polymer electrolyte is provided to be manufactured by a simple and economic method, and to have high ion conductivity at room temperature by comprising inorganic filler and a high dielectric carbonate compound. CONSTITUTION: A solid polymer electrolyte comprises a blend of polyethylene oxide and polyethylene imine, a lithium salt, a high dielectric carbonate compound, and inorganic filler. Based on 100.0 parts by weight of the polyethylene oxide, comprised amount of the polyethylene imine, the lithium salt, the carbonate compound and the inorganic filler is respectively 10-40 parts by weight, 3-10 parts by weight, 50-30 parts by weight and 5-30 parts by weight. The lithium salt is one or more kinds selected from LiClO4, LiBF4 and LiPF6, the carbonate compound is one or more kinds selected from PC, EC, DMC, DEC and EMC, and the inorganic filler is one or more kinds selected from SiO2, TiO2, and RuO2. |
