| 摘要 |
PURPOSE: To provide a separator made of a wettable graft polymer in an electrolyte having a high salt concentration. CONSTITUTION: A separator comprises a microcystalloidal polyolefin film grafted by one kind or more of monomers selected from diethyleneglycol-dimethacrylate, furfurylacrylate, and a diethyleneglycol-dimethacrylate/acrylic acid mixture. The film is irradiated, and after the irradiated film is preserved as necessary, the irradiated film is immersed in a grafting solution containing the monomers, a solvent, and one kind or more of additives, to manufacture a separator that grafts the monomers. |
