ELECTROLYTIC CAPACITOR

An electrolytic capacitor that is provided with an anode body, with a dielectric layer that is formed upon the anode body, with a first conductive polymer layer that covers at least one portion of thedielectric layer, and with a second conductive polymer layer that covers at least one portion of the first conductive polymer layer. The first conductive polymer layer includes a first conductive polymer and a first dopant. The second conductive polymer layer includes a second conductive polymer, a second dopant, and a polycarboxylic acid. The first conductive polymer layer may also include a polycarboxylic acid, and the concentration of the polycarboxylic acid included in the second conductive polymer layer may be greater than the concentration of the polycarboxylic acid included in the first conductive polymer layer. 本发明的电解电容器具有：阳极体；在阳极体上形成的电介质层；覆盖电介质层的至少部分的第1导电性高分子层；和覆盖第1导电性高分子层的至少部分的第2导电性高分子层。第1导电性高分子层包含第1导电性高分子和第1掺杂剂。第2导电性高分子层包含第2导电性高分子、第2掺杂剂和多元羧酸。另外，第1导电性高分子层还可以包含多元羧酸，第2导电性高分子层所含的多元羧酸的浓度比第1导电性高分子层所含的多元羧酸的浓度