| 摘要 |
PURPOSE: A solid polymer electrolyte is provided, which is coated with polyamidoamine dendrimer having functional groups helping the movement of lithium cations and is improved in the ion conductivity and the mechanical strength. CONSTITUTION: The solid polymer electrolyte comprises 1-20 wt% of a filler which is coated with a dendrimer of polyamidoamine; a lithium salt; and an ion-conductive polymer. The filler is selected from the group consisting of LiAlO2, silica and silicon oxide hybrid materials. The dendrimer-coated filler is prepared by coating 3-aminopropylmethyldiethoxyethanol on the surface of a filler, adding the filler into a mixture of dichloromethane and methyl acrylate and refluxing the mixture; reacting the substituted filler with dichloromethane and ethylene diamine to coat the filler with polyamidoamine; and repeating the steps two times. |
