| abstract |
An electrode foil for an electrolytic capacitor, comprising a metal porous portion and a metal core portion continuous with the metal porous portion, wherein the metal porous portion is divided into three equal first regions in the thickness direction of the metal porous portion in order from the metal core portion side , the second region and the third region, the porosity P1 of the first region, the porosity p2 of the second region and the porosity p3 of the third region satisfy P1<P2<P3. |