Abstract: There is provided a capacitor (1) including a main body (10), in which a plurality of dielectric layers (13) and a plurality of electrode layers (11) are alternatively laminated, and an external electrode (20) that is connected to at least part of the main body. Before forming an external electrode by metal spraying (metallikon) on the main body, at least part of a connection surface (30) where the metal spraying is performed is scanned with a laser beam (51) so that scanning marks (55) composed of concave-convex structures (35) are formed by the laser beam on at least part of the connection surface.

Abstract: A capacitor (1) includes a main body (10) in which a dielectric layer (13) and an electrode layer (11) are laminated, and an external electrode (20) connected to at least a part of the main body. The electrode layer (11) includes a heavy edge portion (16) with a connecting part (18), which connects to the external electrode and is thicker than an internal electrode part (15). The capacitor (1) further includes an edge support layer (12) that is made of metal and is laminated on the heavy edge portion (16).

Abstract: A thin film high polymer laminated capacitor includes: a laminated chip including dielectric layers, and internal electrode layers including first metal layers including a first metal vapor-deposited on the dielectric layers, and second metal layers including a second metal vapor-deposited on the first metal layers. The dielectric layers and the internal electrode layers are laminated and bonded alternately, and external electrodes are formed on one end and the other end of the laminated chip. The laminated chip includes a first region having the first metal layers formed on the dielectric layers, which are laminated alternately, and edge regions having the second metal layers formed on layers connected to the one end and layers connected to the other end in the first metal layers, which are laminated alternately, the first region having a capacitor function region, and the edge region having a heavy edge.

Abstract: The present invention addresses a problem of providing an electrolytic capacitor with which an etching treatment of an electrode material is not required and with which it is possible to achieve higher capacitance than conventional electrolytic capacitors using electrode foils having surface areas increased only by etching. This electrolytic capacitor, as a solution, includes a capacitor element having an anode foil, a cathode foil, and separators interposed between the anode foil and the cathode foil; and an electrolytic solution impregnated in the capacitor element, wherein the anode foil or the cathode foil has a sintered material formed with sintered particles of power of at least one kind of aluminum and an aluminum alloy.

Abstract: A capacitor (1) includes a main body (10) in which dielectric layers (13) and electrode layers (11) are laminated, and an external electrode (20) connected to at least a part of the main body by metallikon. Each dielectric layer has a thickness Dt at a connection boundary (18) where the main body is connected to the external electrode, each electrode layer has a thickness Et at the connection boundary, and a ratio between the thickness Dt and the thickness Et is at least a first value DEmin. The first value DEmin may satisfy the following conditions with respect to a minimum set value Dt1 of the thickness Dt DE ? min ? a × Dt ? 1 + b 0.1 ?m ? Dt ? 1 ? Dt ? 1.5 ?m where a and b are coefficients.

Abstract: Provided is an electrical storage device that is compact and can be manufactured easily, while allowing for use of higher voltages. In an electrical storage device, a winding structure comprises: a central electrode body in which a first extending part and a second extending part extending from either side of a central portion are wound around the central portion in the same direction; a first electrode body electrically connected to a first external terminal and extending toward an outer peripheral side from a vicinity of the central portion; a second electrode body electrically connected to a second external terminal and extending toward the outer peripheral side from a vicinity of the central portion; a first separator disposed between the central electrode body and the first electrode body; and a second separator disposed between the central electrode body and the second electrode body.

Abstract: The present invention pertains to a thin-film polymer laminated capacitor having a structure in which a resin thin film layer and an internal electrode metal layer are alternately laminated. The resin thin film layer has a high molecular weight structure obtained through polymerization of a first monomer which is a polyfunctional monomer and a second monomer which is a monofunctional monomer. The first monomer and the second monomer satisfy at least one of conditions (a) and (b). (a) The HLB value H2 of the second monomer is less than the HLB value H1 of the first monomer. (b) By using the following manufacturing method (1), when a first polymer member formed by using only the first monomer as the monomer and a second polymer member formed by using only the second monomer as the monomer are manufactured, and the water absorption rate of each of the polymer members is measured after being left still at 40° C.

Abstract: A solid electrolytic capacitor includes both a solid electrolyte and an electrolyte solution between electrode foils, wherein a rise in ESR can be sufficiently suppressed for a long time and for which a long life can be realized, and a method for manufacturing the capacitor is provided. To achieve the foregoing, this solid electrolytic capacitor includes an amine represented by general formula (1) as the basic component of an electrolytic solution. In the formula, R1 represents hydrogen, an alkyl group, a hydroxyalkyl group, or an alkoxyalkyl group. R2, R3, R4, and R5 each independently represent hydrogen, an alkyl group, a hydroxy group, a hydroxyalkyl group, an alkoxy group, or an alkoxyalkyl group. The ends of R2 and R3 may be bonded to each other to form a ring. The ends of R4 and R5 may be bonded to each other to form a ring.

Abstract: A solid electrolytic capacitor includes a solid electrolyte and an electrolyte between electrode foils, and a method for manufacturing the solid electrolytic capacitor can suppress a rise in ESR and realize a longer life. As a solution, in a solid electrolytic capacitor, a basic component of an electrolytic solution contains an amine represented by formula (1). In the formula, R1 represents hydrogen or an alkyl group, R2 represents an alkylene group, R3 represents an alkyl group. n represents an integer of 1 to 100, wherein R2's may be the same or different when n is 2 or more. m represents an integer of 1 to 3, wherein R1's may be the same or different when m is 1, and when m is 2 or 3, R2's may be the same or different, n's may be the same or different, and R3's may be the same or different.

Abstract: The present invention pertains to a thin-film polymer laminated capacitor having a structure in which a resin thin film layer and an internal electrode metal layer are alternately laminated. The resin thin film layer has a high molecular weight structure obtained through polymerization of a first monomer which is a polyfunctional monomer and a second monomer which is a monofunctional monomer. The first monomer and the second monomer satisfy at least one of conditions (a) and (b). (a) The HLB value H2 of the second monomer is less than the HLB value H1 of the first monomer. (b) By using the following manufacturing method (1), when a first polymer member formed by using only the first monomer as the monomer and a second polymer member formed by using only the second monomer as the monomer are manufactured, and the water absorption rate of each of the polymer members is measured after being left still at 40° C.

Abstract: A film capacitor for positioning at a direct current (DC) terminal at a front end of an inverter having a plurality of switching elements, can include a first member, and a second member surrounding the first member, in which a first thickness of the first member is greater than a second thickness of the second member.

Abstract: A solid electrolytic capacitor (1) includes an anode foil (2a) having formed thereon an oxide film, a cathode foil (2c), and a separator (2d), and is equipped with a solid electrolyte (20) formed of an electroconductive polymer compound in a fine particle form, and a water-soluble compound solution (30) introduced to surround the solid electrolyte (20), the solid electrolyte (20) contains a polyol compound having a molecular weight of less than 200 and a number of hydroxy groups of 4 or more as a first water-soluble compound (2f1), the water-soluble compound solution (30) contains one kind or multiple kinds of a glycol compound in a liquid form as a second water-soluble compound (2f2), and the second water-soluble compound (2f2) has an average molecular weight of less than 400.

Abstract: There is provided a capacitor (1) including a main body (10), in which a plurality of dielectric layers (13) and a plurality of electrode layers (11) are alternatively laminated, and an external electrode (20) that is connected to at least part of the main body. Before forming an external electrode by metal spraying (metallikon) on the main body, at least part of a connection surface (30) where the metal spraying is performed is scanned with a laser beam (51) so that scanning marks (55) composed of concave-convex structures (35) are formed by the laser beam on at least part of the connection surface.

Abstract: To provide an electrolytic capacitor having a configuration that achieves a low impedance by increasing the content of water, satisfies a withstand voltage of 400 V or more, and is capable of enhancing the long-term reliability. Provided as a solution is an electrolytic capacitor (1) including an electrolytic solution (2e) containing ethylene glycol, 10 to 30% by mass of water, and 1 to 12% by mass of an amine salt of a carboxylic acid, having added thereto 0.01 to 2% by mass of one or more kind of ammonium hypophosphite, an amine salt of hypophosphorous acid, and hypophosphorous acid, the carboxylic acid being a polycarboxylic acid having a chain hydrocarbon skeleton and a molecular weight of 140 to 500.

Abstract: A capacitor (1) includes a main body (10) in which a dielectric layer (13) and an electrode layer (11) are laminated, and an external electrode (20) connected to at least a part of the main body. The electrode layer (11) includes a heavy edge portion (16) with a connecting part (18), which connects to the external electrode and is thicker than an internal electrode part (15). The capacitor (1) further includes an edge support layer (12) that is made of metal and is laminated on the heavy edge portion (16).

Abstract: There is provided a method of manufacturing a capacitor (1), the capacitor (1) including a main body (10) in which dielectric layers (13) and electrode layers (11) are alternatively laminated, with at least part of the main body connected to external electrodes (20). The method of manufacturing includes a step (89) of forming an electrode layer on a dielectric layer. The forming of the electrode layer includes: a step (83) of forming a first metal layer including a connecting part, which is connected to the external electrode, and an internal electrode part; and a step (85) of forming a second metal layer on the connecting part. In addition, the method includes a step (82) of patterning to form the first pattern and a step (84) of patterning to form the second pattern using a second material that evaporates when the second metal layer is formed.

Abstract: A capacitor (1) includes a main body (10) in which dielectric layers (13) and electrode layers (11) are laminated, and an external electrode (20) connected to at least a part of the main body by metallikon. Each dielectric layer has a thickness Dt at a connection boundary (18) where the main body is connected to the external electrode, each electrode layer has a thickness Et at the connection boundary, and a ratio between the thickness Dt and the thickness Et is at least a first value DEmin. The first value DEmin may satisfy the following conditions with respect to a minimum set value Dt1 of the thickness Dt DE ? min ? a × Dt ? 1 + b 0.1 ?m ? Dt ? 1 ? Dt ? 1.5 ?m where a and b are coefficients.

Abstract: A film capacitor for positioning at a direct current (DC) terminal at a front end of an inverter having a plurality of switching elements, can include a first member, and a second member surrounding the first member, in which a first thickness of the first member is greater than a second thickness of the second member.

Abstract: A film capacitor for positioning at a direct current (DC) terminal at a front end of an inverter having a plurality of switching elements, can include a first member; and a second member surrounding the first member, in which a second dielectric resistance of the second member is higher than a first dielectric resistance of the first member.

Abstract: A solid electrolytic capacitor (1) includes an anode foil (2a) having formed thereon an oxide film, a cathode foil (2c), and a separator (2d), and is equipped with a solid electrolyte (20) formed of an electroconductive polymer compound in a fine particle form, and a water-soluble compound solution (30) introduced to surround the solid electrolyte (20), the solid electrolyte (20) contains a polyol compound having a molecular weight of less than 200 and a number of hydroxy groups of 4 or more as a first water-soluble compound (2f1), the water-soluble compound solution (30) contains one kind or multiple kinds of a glycol compound in a liquid form as a second water-soluble compound (2f2), and the second water-soluble compound (2f2) has an average molecular weight of less than 400.