Abstract: A capacitor assembly including at least one capacitor each having a first end and a second end spaced apart in a longitudinal direction, and a first terminal and a second terminal located at the first end of the capacitor, the first end being provided with a first surface, and the second end being provided with a second surface; a heat sink having a first cooling surface; and a connection system connecting the at least one capacitor heat conductively to the heat sink such that the second surface of each of the at least one capacitor is in heat conductive connection with the first cooling surface. The connection system is to in contact with the first surface of each of the at least one capacitor.

Abstract: An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode part, a cathode part, and an intermediate part. The anode part includes a first portion that is a part of an anode body having a porous region, and a first dielectric layer. The intermediate part includes a second portion of the anode body, a second dielectric layer, and a first insulating member containing a first resin component. The cathode part includes a third portion of the anode body, a third dielectric layer, a solid electrolyte layer covering at least a part of the third dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The first resin component contains a curing product of a first reactive compound. At least a part of the first insulating member is disposed in pores of the porous region in the intermediate part.

Abstract: Composite electrodes, supercapacitors equipped therewith, ternary materials for composite electrodes, and related methods. Such a composite electrode has a composite CNT-ZIF structure formed of a conductive network of carbon nanotubes (CNT) and a zeolitic imidazole framework (ZIF) coating covering the conductive network. A layer of molybdenum disulfide (MoS2) structures having flower-like morphologies is disposed on the composite CNT-ZIF structure. The MoS2 structures have pores that provide diffusion paths for ions to and/or from the ZIF coating and/or the conductive network of CNT.

Abstract: Ternary composite material, electrode, supercapacitor, and related methods. A ternary composite material includes a scaffold formed of carbon nanotubes (CNT), a first layer of zeolitic imidazolate 8 (ZIF-8) crystals formed on the scaffold of the CNT, and a second layer of molybdenum disulfide (MoS2) flakes formed on the first layer of the ZIF-8 crystals. An electrode can be formed with the ternary composite. A supercapacitor may include one or more electrodes that are at least partly formed of the ternary composite material. Methods of producing the ternary composite material and the electrodes are also disclosed.

Abstract: A multilayer ceramic capacitor and a method of manufacturing the same are disposed. The multilayer ceramic capacitor includes: a body including a plurality of internal electrodes and a dielectric layer interposed between the plurality of internal electrodes; and external electrodes disposed on the body and connected to the internal electrodes, respectively. One of the external electrodes includes a first plating layer, and the first plating layer includes a crystal grain in which an average ratio of major and minor axes thereof is 1:1 to 3:1.

Abstract: A dielectric device includes a first electrode, dielectric film, and second electrode, which are laminated. The dielectric film includes columnar crystals extending in a lamination direction. Provided that “x” denotes a reciprocal (1/?m) of a dielectric film thickness and “y” denotes a dielectric material average crystallite size (nm) calculated by the Scherrer equation, “x” and “y” are located within a quadrilateral having point A (0.10, 5), point B (10, 20), point C (10, 35), and point D (0.10, 10) as vertices. Alternatively, the columnar crystals have an average width of less than 40 nm within a distance range from one tenth to one third of the dielectric film thickness from one electrode to the other and an average width of 40 nm or more within a distance range from one tenth to one third of the dielectric film thickness from the other electrode to the one in the lamination direction.

Abstract: A method for producing an electrolytic capacitor, the method including steps of: preparing an electrode foil; preparing a first conductive polymer dispersion containing a first conductive polymer component and a first dispersion medium; forming a first conductive polymer layer containing the first conductive polymer component, by applying the first conductive polymer dispersion to a surface of the electrode foil by a coating method, and then at least partially removing the first dispersion medium; and fabricating a capacitor element, using the electrode foil having the first conductive polymer layer.

Abstract: A multilayer ceramic capacitor includes a substantially rectangular parallelepiped multilayer body including dielectric ceramic layers and internal electrode layers laminated alternately in the lamination direction, first and second main surfaces opposed to each other in the lamination direction, first and second lateral surfaces opposed to each other in the width direction orthogonal or substantially orthogonal to the lamination direction, and first and second end surfaces opposed to each other in the length direction orthogonal or substantially orthogonal to the lamination direction and the width direction, and a pair of external electrodes at both ends of the multilayer body in the length direction to cover at least the first and second end surfaces, and connected to the internal electrode layers. A first protrusion is provided at each of four corners on a surface of at least one of the first and second main surfaces having a substantially rectangular shape.

Abstract: A nanocomposite electrode and a supercapacitor device including said nanocomposite electrode. The nanocomposite electrode includes a mixture of at least one binding compound, at least one conductive additive, and at least one molybdenum doped carbon material coated onto a substrate. The supercapacitor device includes two nanocomposite electrodes disposed facing one another, wherein the substrate of each nanocomposite electrode is coated with the mixture on an inside facing surface and the outer surfaces of the nanocomposite electrodes are not coated with the mixture, and the inside facing surfaces are separated by at least one electrolyte.

Abstract: A capacitor structure and a power convertor are provided by the present disclosure. The capacitor structure includes a housing and at least one core arranged inside the housing, and two electrodes of the capacitor structure are respectively led out from two ends of the housing. Thus, the pole piece required in a case that electrodes are led from the same end of the housing is omitted, thereby saving material cost. Besides, the housing and the core are respectively hollow structures, and the internal heat of the capacitor structure can be ventilated and dissipated through the corresponding hollow part, thereby improving the heat dissipation performance of the capacitor structure. In addition, by arranging the fin heat dissipation teeth on the housing, the heat dissipation area can be increased to further improve the heat dissipation efficiency.

Abstract: A electrochemical device negative electrode includes: a negative electrode core material; and a negative electrode material layer supported on the negative electrode core material. The negative electrode material layer contains a carbon material. And a surface layer portion of the negative electrode material layer has a lithium carbonate-containing region.

Abstract: A solid electrolytic capacitor element includes an anode body including a porous part, a dielectric layer, and a cathode part. The cathode part includes a solid electrolyte layer covering the dielectric layer. The anode body includes a first anode body part on which the solid electrolyte layer is disposed and a second anode body part on which the solid electrolyte layer is not disposed. The solid electrolyte layer includes a first solid electrolyte layer disposed in the porous part and a second solid electrolyte layer disposed outside the porous part. When a length of the first anode body part in a longitudinal direction thereof is defined as a length L, a thickness of the second solid electrolyte layer in a first region is more than or equal to 1 ?m. The first region is a region between boundary between the first anode body part and the second anode body part and a position located away from boundary in a length 0.05 L in the first anode body part.

Abstract: An electrolytic capacitor includes a capacitor element and an electrolytic solution. The capacitor element includes: an anode body including a dielectric layer; a cathode body; and a solid electrolyte in contact with the dielectric layer. The electrolytic solution includes a solvent, a solute, and a polymer component. The solvent includes an ethylene glycol compound. The polymer component includes polyalkylene glycol. The polyalkylene glycol includes at least one of (i) a mixture of polyoxyethylene and polyoxypropylene and (ii) an oxyethylene-oxypropylene copolymer. In the polyalkylene glycol, a molar ratio m/n of oxyethylene units to oxypropylene units is greater than 1.

Abstract: A supercapacitor including a gel electrode and two electrodes is described. Each of the two electrodes include a second mixture of 5-10 wt. % conductive additive, 5-10 wt. % binding compound, and 80-90 wt. % activated carbon. Further, the second mixture is at least partially coated on an inner surface of a substrate, and where the inner surfaces of the two electrodes are separated by and in physical contact with the gel electrolyte to form the supercapacitor. The gel electrolyte includes a polyol compound, a base with a molarity (M) of 1-5 in the polyol compound, and 1-10 wt. % of boric acid relative to the weight of the polyol compound. The boric acid intercalates with a first mixture of the polyol compound and the base, creating a gel.

Abstract: A capacitor manufacturing method is disclosed herein that includes a process for the isolation of electrode tabs attached to the capacitors' electrodes from other elements in the capacitor. An isolation patch or layer may be deposited over the tabs by a machine or a device after the tab is attached and before the electrodes are wound into a cylindrical internal element of a capacitor. The device may coat the tabs and surrounding regions with an isolating material. Electrode tabs may be provided with an isolating material pre-deposited at least in part over the tabs.

Abstract: A nanocomposite electrode and a supercapacitor device including said nanocomposite electrode. The nanocomposite electrode includes a mixture of at least one binding compound, at least one conductive additive, and at least one molybdenum doped carbon material coated onto a substrate. The supercapacitor device includes two nanocomposite electrodes disposed facing one another, wherein the substrate of each nanocomposite electrode is coated with the mixture on an inside facing surface and the outer surfaces of the nanocomposite electrodes are not coated with the mixture, and the inside facing surfaces are separated by at least one electrolyte.

Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrode layers laminated alternately on each other, and external electrode layers provided on opposing end surfaces of the multilayer body in a length direction orthogonal or substantially orthogonal to a lamination direction, and each connected with the internal electrode layers, in which the dielectric layers each include at least one of Ca, Zr, or Ti, the internal electrode layers each include Cu, and when a dimension in the lamination direction of the multilayer body is defined as T0, a dimension in the length direction of the multilayer body is defined as L0, and a dimension in a width direction orthogonal or substantially orthogonal to the lamination direction and the length direction is defined as W0, a relationship of L0<W0<T0 is satisfied.

Abstract: Disclosed is an electrolytic capacitor including a capacitor element. The capacitor element includes an anode body having a dielectric layer formed at a surface of the anode body, and an electrolyte layer disposed adjacent to the dielectric layer. The electrolyte layer contains a conductive polymer doped with a dopant, conductive particles, and a non-aqueous solvent.

Abstract: A disclosed capacitor element includes: a first electrode; a dielectric layer covering at least a portion of the first electrode; and a second electrode covering at least a portion of the dielectric layer. The second electrode includes a solid electrolyte layer, a conductive carbon layer covering at least a portion of the solid electrolyte layer, and a metal paste layer covering at least a portion of the carbon layer. The carbon layer includes flake carbon particles and spherical carbon particles. A particle diameter of the spherical carbon particles is less than an average major diameter of the flake carbon particles, or greater than or equal to the average major diameter of the flake carbon particles.

Abstract: A multilayer electronic component includes a body including a plurality of dielectric layers, and a capacitance formation portion including first and second internal electrodes alternately disposed in a third direction with the dielectric layer interposed therebetween, the body including first and second surfaces opposing in a first direction, third and fourth surfaces connected to the first and second surfaces and opposing in a second direction, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing in the third direction, external electrodes disposed on the body, and a dummy electrode disposed to penetrate through the capacitance formation portion in the third direction.