Electrolytic capacitor and manufacturing method of electrolytic capacitor

An electrolytic capacitor comprising:

• a capacitor body, the capacitor body comprising:
• a first end surface;
• a second end surface opposite to the first end surface;
• a bottom surface adjacent to the first end surface and the second end surface;
• a capacitor element including an anode line passing therethrough, a dielectric layer, and a cathode layer on the dielectric layer;
• and
• a sealing material covering the capacitor element,
• wherein the anode line has a first end exposed on the first end surface of the capacitor body,
• the electrolytic capacitor includes an anode external electrode on the first end surface of the capacitor body,
• the anode external electrode is connected to the first end of the anode line,
• the cathode layer is electrically led out to the bottom surface of the capacitor body,
• the electrolytic capacitor includes a cathode external electrode on the bottom surface of the capacitor body,
• the cathode external electrode is electrically connected to the cathode layer, and
• the sealing material comprises two or more sealing resins, and a difference between the two or more sealing resins is visually recognizable, allowing polarity to be distinguished by visual recognition of the sealing material.

An electrolytic capacitor comprising:

• a capacitor body, the capacitor body comprising:
• a first end surface;
• a second end surface opposite to the first end surface;
• a bottom surface adjacent to the first end surface and the second end surface;
• a capacitor element including an anode line passing therethrough, a dielectric layer, and a cathode layer on the dielectric layer;
• and
• a sealing material covering the capacitor element,
• wherein the anode line has a first end exposed on the first end surface of the capacitor body,
• the electrolytic capacitor includes an anode external electrode on the first end surface of the capacitor body,
• the anode external electrode is connected to the first end of the anode line,
• the cathode layer is electrically led out to the bottom surface of the capacitor body,
• the electrolytic capacitor includes a cathode external electrode on the bottom surface of the capacitor body,
• the cathode external electrode is electrically connected to the cathode layer,
• the capacitor element comprises a porous portion made of a valve-action metal, the dielectric layer on a surface of the porous portion, and the cathode layer on the dielectric layer, and
• the cathode layer comprises a solid electrolyte layer on the dielectric layer and a conductive layer on a surface of the solid electrolyte layer, and
• wherein a second end of the anode line protrudes from the capacitor element at the second end side of the capacitor body, and at a part where the anode line protrudes from the capacitor element at the second end side of the capacitor body, the solid electrolyte layer and the conductive layer are not provided on the surface of the anode line.