Solid electrolytic capacitor

A solid electrolytic capacitor comprising:

• a stack body in which a plurality of capacitor elements are stacked to each other;
• a terminal connected to the stack body;
• and
• an outer packaging resin covering the stack body and the terminal so that at least part of the terminal is exposed from a surface of the outer packaging resin, wherein:
• a pair of capacitor elements adjacent to each other among the plurality of capacitor elements are joined at a junction portion,
• each of the plurality of capacitor elements includes an anode body that includes a dielectric layer, and an anode drawing part exposed from the dielectric layer, a solid electrolyte layer that at least partially covers the dielectric layer, and a cathode layer that at least partially covers the solid electrolyte layer,
• a coating layer is disposed between the solid electrolyte layer and the outer packaging resin, the coating layer having oil repellency,
• a surface of the solid electrolyte layer has an exposed area that is not covered with the cathode layer,
• in a surface of the each of the plurality of capacitor elements, the anode drawing part, the exposed area, and the cathode layer are disposed in order in a longitudinal direction of the each of the plurality of capacitor elements,
• the exposed area is an area from an end edge of the solid electrolyte layer at a side close to the anode drawing part to an end edge of the cathode layer, and
• the coating layer covers at least the exposed area and an entirety of an outer surface of the stack body other than the junction portion and a first region, the first region being connected to the terminal.

A solid electrolytic capacitor comprising:

• a stack body in which a plurality of capacitor elements are stacked to each other;
• and
• an outer packaging resin covering the stack body, wherein:
• a pair of capacitor elements adjacent to each other among the plurality of capacitor elements are joined at a junction portion,
• each of the plurality of capacitor elements includes an anode body that includes a dielectric layer, a solid electrolyte layer that at least partially covers the dielectric layer, and a cathode layer that at least partially covers the solid electrolyte layer,
• the cathode layer includes a carbon layer and a cathode-side conductive part that are stacked in this order from the dielectric layer,
• a coating layer is disposed between the solid electrolyte layer and the outer packaging resin, the coating layer containing a fluorine compound,
• the anode body includes an anode-side conductive part having a plate shape and the dielectric layer disposed on at least part of a first surface of the anode-side conductive part, the first surface being perpendicular to a thickness direction of the anode-side conductive part,
• the coating layer covers at least part of a second surface of the solid electrolyte layer, the second surface being opposed to the first surface and located at a side far from the anode body, and
• the coating layer further covers at least part of a first area in an outer surface of the cathode-side conductive part covering the second surface of the solid electrolyte layer, the first area facing the junction portion.

A solid electrolytic capacitor comprising:

• a stack body in which a plurality of capacitor elements are stacked to each other;
• and
• an outer packaging resin covering the stack body, wherein:
• a pair of capacitor elements adjacent to each other among the plurality of capacitor elements are joined at a junction portion,
• each of the plurality of capacitor elements includes an anode body that includes a dielectric layer a solid electrolyte layer that at least partially covers the dielectric layer, and a cathode layer that at least partially covers the solid electrolyte layer,
• the cathode layer includes a carbon layer and a cathode-side conductive part that are stacked in this order from the dielectric layer,
• a coating layer is disposed between the solid electrolyte layer and the outer packaging resin, the coating layer having oil repellency,
• the anode body includes an anode-side conductive part having a plate shape and the dielectric layer disposed on at least part of a first surface of the anode-side conductive part, the first surface being perpendicular to a thickness direction of the anode-side conductive part,
• the coating layer covers at least part of a second surface of the solid electrolyte layer, the second surface being opposed to the first surface and located at a side far from the anode body, and
• the coating layer further covers at least part of a first area in an outer surface of the cathode-side conductive part covering the second surface of the solid electrolyte layer, the first area facing the junction portion.