An electrolytic capacitor that includes a resin molded body having opposed first and second end surfaces, the body including a stack that includes a capacitor element with an anode exposed at the first end surface, a dielectric layer on a surface of the anode, and a cathode opposite to the anode and exposed at the second end surface, and a sealing resin that encloses the stack; a first external electrode on the first end surface of the resin molded body and electrically connected to the anode; and a second external electrode on a second end surface of the resin molded body and electrically connected to the cathode, wherein the first external electrode and the second external electrode each include a resin electrode layer containing a conductive component and a resin component.

An electrolytic capacitor that includes a resin molded body having opposed first and second end surfaces, the body including a stack that includes a capacitor element with an anode exposed at the first end surface, a dielectric layer on a surface of the anode, and a cathode opposite to the anode and exposed at the second end surface, and a sealing resin that encloses the stack; a first external electrode on the first end surface of the resin molded body and electrically connected to the anode; and a second external electrode on a second end surface of the resin molded body and electrically connected to the cathode, wherein the first external electrode and the second external electrode each include a resin electrode layer containing a conductive component and a resin component.

A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains a sintered porous anode body, a dielectric that overlies the anode body, a solid electrolyte that overlies the dielectric, and an external polymer coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes a conductive polymer having repeating units derived from an aniline monomer having the following general formula (I):

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A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains a sintered porous anode body, a dielectric that overlies the anode body, a solid electrolyte that overlies the dielectric, and an external polymer coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes a conductive polymer having repeating units derived from an aniline monomer having the following general formula (I):

##STR00001##

A solid electrolytic capacitor is provided that includes a capacitor element having a valve action metal base with a porous portion on a first main surface of a core portion, a dielectric layer disposed on a surface of the porous portion, a solid electrolyte layer disposed on the dielectric layer, and a conductor layer disposed on the solid electrolyte layer. Moreover, the capacitor includes a sealing layer that seals a first main surface of the capacitor element, a cathode outer electrode electrically connected to the conductor layer, and an anode outer electrode electrically connected to the valve action metal base. The sealing layer and the cathode outer electrode are disposed on the conductor layer and a cathode through-electrode extends through the sealing layer on the conductor layer. The conductor layer and the cathode outer electrode are connected to each other with the cathode through-electrode interposed therebetween.

A solid electrolytic capacitor is provided that includes a capacitor element having a valve action metal base with a porous portion on a first main surface of a core portion, a dielectric layer disposed on a surface of the porous portion, a solid electrolyte layer disposed on the dielectric layer, and a conductor layer disposed on the solid electrolyte layer. Moreover, the capacitor includes a sealing layer that seals a first main surface of the capacitor element, a cathode outer electrode electrically connected to the conductor layer, and an anode outer electrode electrically connected to the valve action metal base. The sealing layer and the cathode outer electrode are disposed on the conductor layer and a cathode through-electrode extends through the sealing layer on the conductor layer. The conductor layer and the cathode outer electrode are connected to each other with the cathode through-electrode interposed therebetween.

A solid electrolytic capacitor includes a capacitor element. The capacitor element includes an anode foil including a base material part and a porous part disposed on a surface of the base material part, a dielectric layer disposed on at least a part of a surface of the anode foil, a solid electrolyte layer covering at least a part of the dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The anode foil includes an anode section on which the solid electrolyte layer is not disposed, a cathode formation section on which the solid electrolyte layer is disposed, and a separation section located between the anode section and the cathode formation section. A first insulating material is disposed on a surface of the porous part in the separation section. And at least a part of a region of the porous part that is covered with the first insulating material includes a second insulating material.

A solid electrolytic capacitor includes a capacitor element. The capacitor element includes an anode foil including a base material part and a porous part disposed on a surface of the base material part, a dielectric layer disposed on at least a part of a surface of the anode foil, a solid electrolyte layer covering at least a part of the dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The anode foil includes an anode section on which the solid electrolyte layer is not disposed, a cathode formation section on which the solid electrolyte layer is disposed, and a separation section located between the anode section and the cathode formation section. A first insulating material is disposed on a surface of the porous part in the separation section. And at least a part of a region of the porous part that is covered with the first insulating material includes a second insulating material.

A solid electrolytic capacitor includes stacked capacitor elements. Each capacitor element includes: an anode body; a dielectric layer provided on a surface of the anode body and including a plurality of voids; a solid electrolyte layer provided on a surface of the dielectric layer; a cathode body provided on a surface of the solid electrolyte layer; and an insulating layer that includes a portion of the dielectric layer and an insulating resin filling the plurality of voids included in the portion of the dielectric layer, the insulating layer insulating and separating between an anode side and a cathode side, and the insulating layer being provided on the anode side of the dielectric layer. An anode portion adhesive resin is provided between adjacent insulating layers.

A solid electrolytic capacitor includes stacked capacitor elements. Each capacitor element includes: an anode body; a dielectric layer provided on a surface of the anode body and including a plurality of voids; a solid electrolyte layer provided on a surface of the dielectric layer; a cathode body provided on a surface of the solid electrolyte layer; and an insulating layer that includes a portion of the dielectric layer and an insulating resin filling the plurality of voids included in the portion of the dielectric layer, the insulating layer insulating and separating between an anode side and a cathode side, and the insulating layer being provided on the anode side of the dielectric layer. An anode portion adhesive resin is provided between adjacent insulating layers.