| 摘要 |
PURPOSE:To lengthen life by using, as a separator, the unwoven fabric of aromatic polymer fibers, which contain heterocycles being stable to the ingredients of electrolyte and expressed by a specified general formula. CONSTITUTION:The unwoven fabric of aromatic polymer fibers 1 which have heterocycles being expressed by a specified general formula, is used as a separator for electrolytic capacitor. And the density of the unwoven fabric is made 5-50g/cm<3> and the thickness 10-200mum. Hereby, the progress of chemical reaction in use can be avoided, and the life lengthened, and the resistance to chemicals improved. |
