TWI828822B

The purpose of the present invention is to provide a separator for an aluminum electrolytic capacitor and an aluminum electrolytic capacitor, with which it is possible to increase the uniformity of conductive polymers in solid electrolytic capacitors and hybrid electrolytic capacitors, and to achieve a further decrease in the ESR of the capacitor. The purpose is achieved by means of the following configurations: a separator for an aluminum electrolytic capacitor, the separator being interposed between a pair of electrodes and characterized in that the bottom surface of an element obtained by winding the pair of electrodes with the separator interposed therebetween is dipped in an electrolytic solution for an impregnating rate of not more than 50 seconds; or an aluminum electrolytic capacitor including a pair of electrodes and the separator interposed between the pair of electrodes, characterized in that the separator is as noted above, or characterized in that a conductive polymer is used as the cathode mater