An electrolytic capacitor includes a capacitor element, an exterior body , a first external electrode, and a second external electrode. The capacitor element includes an anode body that is electrically connected to the first external electrode and has a porous part on a surface thereof, a dielectric layer that is disposed on a surface of at least a part of the porous part, and a solid electrolyte layer that covers at least a part of the dielectric layer, and is electrically connected to the second external electrode. The exterior body has a first principal surface, a second principal surface intersecting the first principal surface, a third principal surface opposite to the first principal surface, and a fourth principal surface opposite to the second principal surface. The first external electrode and the second external electrode are disposed along the first principal surface of the exterior body to be separated from each other.

An electrolytic capacitor includes a capacitor element, an exterior body , a first external electrode, and a second external electrode. The capacitor element includes an anode body that is electrically connected to the first external electrode and has a porous part on a surface thereof, a dielectric layer that is disposed on a surface of at least a part of the porous part, and a solid electrolyte layer that covers at least a part of the dielectric layer, and is electrically connected to the second external electrode. The exterior body has a first principal surface, a second principal surface intersecting the first principal surface, a third principal surface opposite to the first principal surface, and a fourth principal surface opposite to the second principal surface. The first external electrode and the second external electrode are disposed along the first principal surface of the exterior body to be separated from each other.

A solid electrolytic capacitor that includes: a valve-action metal substrate including a porous portion at a surface thereof; a dielectric layer on the porous portion; a solid electrolyte layer on the dielectric layer; a conductive layer on the solid electrolyte layer; and a cathode lead-out layer on the conductive layer. When viewed in a thickness direction, the solid electrolyte layer includes a central region at a center of the solid electrolyte layer and a peripheral region surrounding the central region and defining outer edges of the solid electrolyte layer. The peripheral region is higher than the central region in the thickness direction as measured from a reference surface including a highest point of the porous portion in the thickness direction and perpendicular to the thickness direction. The conductive layer is at least on the central region of the solid electrolyte layer.

Multi-terminal capacitor devices and methods of making multi-terminal capacitor devices are described herein. The multi-terminal capacitor devices may include a plurality of individual capacitors arranged in a single device layer, such as high surface area capacitors. A individual capacitor may include an aluminum foil-based electrode, an aluminum oxide dielectric layer conformal with the aluminum foil-based electrode, and a conductive material electrode, such as a conducting polymer or a conductive ceramic, in conformal contact with the dielectric layer.

A solar cell module comprises: two base plates each including a conductive layer on at least one side; and a plurality of submodules interposed between respective conductive layers of the two base plates. The plurality of submodules each include a plurality of cells connected to each other as a result of a conductive material electrically connecting the respective conductive layers of the two base plates. The two base plates each have a plurality of insulating grooves in a gap between the plurality of submodules. The plurality of insulating grooves of one of the two base plates and the plurality of insulating grooves of an other one of the two base plates define at least one insulating space that prevents short circuiting between adjacent submodules.

The capacitor array that includes: a capacitor layer including a plurality of capacitor portions divided by a plurality of through-portions and arranged in a plane, and the capacitor portions each have a first main surface and a second main surface that are opposite to each other in a thickness direction. The plurality of through-portions include a first through-portion extending in a first direction perpendicular to the thickness direction, and a second through-portion extending in a second direction perpendicular to the thickness direction and intersecting the first direction. In a sectional view, each of the first through-portion and the second through-portion independently has a taper having a width decreasing from one of the first main surface and the second main surface to the other main surface. The first through-portion has a taper angle that is different from a taper angle of the second through-portion.

The capacitor array that includes: a capacitor layer including a plurality of capacitor portions divided by a plurality of through-portions and arranged in a plane, and the capacitor portions each have a first main surface and a second main surface that are opposite to each other in a thickness direction. The plurality of through-portions include a first through-portion extending in a first direction perpendicular to the thickness direction, and a second through-portion extending in a second direction perpendicular to the thickness direction and intersecting the first direction. In a sectional view, each of the first through-portion and the second through-portion independently has a taper having a width decreasing from one of the first main surface and the second main surface to the other main surface. The first through-portion has a taper angle that is different from a taper angle of the second through-portion.

An electrolytic capacitor includes exterior body and an element stack body including a plurality of capacitor elements. Each of the plurality of capacitor elements includes an anode body, a dielectric layer, and a cathode part covering at least a part of the dielectric layer. The exterior body includes a first principal surface, a second principal surface intersecting the first principal surface, a third principal surface opposite to the first principal surface, and a fourth principal surface opposite to the second principal surface. In at least one first capacitor element among the plurality of capacitor elements, an end surface of an end of the anode body is exposed from the exterior body at least on first principal surface to be electrically connected to a first external electrode. And an end surface of an end of the cathode part is exposed from the exterior body at least on second principal surface to be electrically connected to a second external electrode.

A capacitor 1 includes a capacitor element 3 holding solution between an anode foil 5 and a cathode foil 7 that are wound up with a separator 6 in between, a body case 2 for housing the capacitor element 3, and a sealing member 4 for sealing the body case 2. A part of the separator 6 makes contact, at a plurality of points or over an area, with the face of the sealing member 4 facing the capacitor element 3 so as to rest on that face. The solution contains, dissolved in a lipophilic solvent, deterioration preventing agent that solidifies by oxidation. The solution is supplied through the separator 6 to the sealing member 4 and permeates the sealing member 4, so that a coating 17 resulting from the agent solidifying coats the outer face of the sealing member 4, leaving the solution present in the sealing member 4.

Various embodiments of an electrical component and a method of forming such component are disclosed. The electrical component includes a substrate having a first major surface, a second major surface, an alloy layer disposed on the first major surface of a substrate, and tantalum material disposed on the alloy layer such that the alloy layer is between the tantalum material and the first major surface of the substrate. The tantalum material includes bonded tantalum particles. The electrical component can also include a dielectric layer disposed on the tantalum particles, a cathode electrode disposed over the tantalum material, and an anode electrode disposed on the second major surface of the substrate.