Abstract: An ultracapacitor module is disclosed. The ultracapacitor module comprises: an enclosure, and a plurality of ultracapacitors housed within the enclosure wherein at least one ultracapacitor of the plurality of ultracapacitors is secured to the enclosure. The ultracapacitor module satisfies one or more of the following conditions upon being subjected to a vibration profile in accordance with ISO 16750-3-2012, Table 12 and IEC 60068-2-64: a capacitance within a rated capacitance value as determined in accordance IEC 62391-1, Method 1A, an equivalent series resistance within a rated equivalent series resistance value as determined in accordance IEC 62391-1, a leakage current within a rated leakage current value as determined in accordance IEC 62391-1, an operating voltage with a rated operating voltage value.

Abstract: A separator for an aluminum electrolytic capacitor. The separator makes it possible to use inexpensive fibers and has excellent impedance characteristics and short-circuit resistance performance. When the separator for an aluminum electrolytic capacitor is interposed between a positive electrode and a negative electrode of an aluminum electrolytic capacitor and 500 V are applied during separator dielectric breakdown testing, the separator for an aluminum electrolytic capacitor has a short-circuit rate of no more than 10%.

Abstract: Provided is an electrode-forming material for an electrochemical capacitor useful for forming an electrode of an electrochemical capacitor having a high storage capacity and a high energy density. The electrode-forming material for an electrochemical capacitor according to an embodiment of the present invention includes boron-doped nanodiamond (A) having a specific surface area of 110 m2/g or greater and an electrical conductivity at 20° C. of 5.0×10?3 S/cm or greater; and a metal oxide (B), and the content of the (B) is from 20 to 95 mass % with respect to the total content of the (A) and (B).

Abstract: A capacitor and capacitor assemblies are provided, configured to prevent damage from shock and/or vibration. A capacitor assembly according to the invention comprises an anode plate having an anode plate wire extending from a surface of the anode plate. An anode wire holder is positioned around at least a portion of the anode plate wire. A wire separator comprising a channel is provided, at least a portion of the anode plate wire received within the channel. Methods of forming capacitors and capacitor assemblies are also provided.

Abstract: Disclosed herein is a capacitor component that includes a lower electrode, a capacitive insulating film covering the lower electrode, a plurality of upper electrodes overlapping the lower electrode through the capacitive insulating film, a first external terminal connected to the lower electrode, a plurality of fuse wires connected respectively to the plurality of upper electrodes, and a second external terminal connected in common to the plurality of fuse wires. The resistance values of the plurality of respective fuse wires are higher than the resistance values of the plurality of corresponding upper electrodes.

Abstract: An asymmetric supercapacitor having a positive electrode, a negative electrode and a biasing electrode disposed between the positive electrode and negative electrode. The biasing electrode accumulates a mass-balanced equivalent amount of charge as the supercapacitor is charging, and an independent voltage applied to the biasing electrode causes charge to be forced to the positive electrode or the negative electrode maintaining an equilibrium in the charge double layer.

Abstract: A multilayer ceramic capacitor includes: a multilayer structure having a parallelepiped shape in which each of a plurality of dielectric layers and each of a plurality of internal electrode layers are alternately stacked and are alternately exposed to two edge faces of the multilayer structure, a main component of the plurality of dielectric layers being a ceramic; and a first cover layer and a second cover layer that sandwich the multilayer structure in a stacking direction of the multilayer structure, a main component of the first cover layer and the second cover layer being the same as that of the dielectric layers, wherein the first cover layer includes a first region spaced from the multilayer structure by at least 50 ?m, is thicker than the second cover layer, and has a thickness more than 50 ?m.

Abstract: A multilayer ceramic capacitor includes a body having a dielectric layer and internal electrodes disposed to be alternately exposed to the third and fourth surfaces with the dielectric layer interposed therebetween. External electrodes include connection parts respectively formed on opposing surfaces of the body, band parts formed to extend from the connection parts to portions of side surfaces of the body, and corner parts in which the connection parts and the band parts are contiguous. A thickness of each of the external electrodes may be 50 nm to 2 ?m. The external electrodes may be formed using a barrel-type sputtering method. A ratio t2/t1 may satisfy 0.7 to 1.2, where t1 is a thickness of each connection part and t2 is a thickness of each band part. A ratio t3/t1 may satisfy 0.7 to 1.0, where t3 is a thickness of each corner part.

Abstract: An object of the present invention is to provide a solid electrolytic capacitor separator configured such that thickness non-uniformity is reduced, internal short-circuit is less likely to occur, an impedance is not too high, and a high heat resistance is exhibited. In a solid electrolytic capacitor separator including non-woven fabric, the non-woven fabric contains fibrillated heat-resistant fibers and synthetic short fibers as essential components, the fiber length of the fibrillated heat-resistant fiber is 0.30 to 0.75 mm, and the percentage of fibrillated heat-resistant fibers with a fiber width of 12 to 40 ?m is equal to or higher than 55% and lower than 75%.

Abstract: An electrolytic capacitor includes a capacitor element and electrolytic solution. The capacitor element includes an anode body with an oxide film, and a solid electrolyte contacting the oxide film. The electrolytic solution contains a solvent and a solute. The solvent contains at least one selected from the group consisting of a lactone compound, a glycol compound, and a sulfone compound. The solute includes a first acid component and a base component. The first acid component includes at least one of a benzenedicarboxylic acid and a derivative of the benzenedicarboxylic acid. The base component includes at least one of an amine and an amidine. A concentration of the solute in the electrolytic solution ranges from 15% by mass to 40% by mass, inclusive. A ratio (V/Vw) of a formation voltage V of the oxide film to a rated voltage Vw of the electrolytic capacitor is less than or equal to 1.7.

Abstract: An interdigitated metal-insulator-metal capacitor structure is formed by a first unitary body of a first conductive material that includes a first metal plate, a first set of interdigitated electrodes protruding upwards from a top surface of the first metal plate, and a first set of connecting vias protruding downwards from a bottom surface of the first metal plate. A second unitary body of a second conductive material is disposed above the first unitary body and electrically separated from the first unitary body by an insulating layer. The second unitary body includes a second metal plate, a second set of interdigitated electrodes protruding downwards from a bottom surface of the second metal plate, and a second set of connecting vias protruding upwards from a top surface of the second metal plate. The first set of interdigitated electrodes are interleaved with the second set of interdigitated electrodes.

Abstract: A film capacitor that includes a resin layer which has a first surface and a second surface and in which there are particles on at least one of the first surface and the second surface; and a metal layer on the first surface of the resin layer, wherein there are more particles in number on the at least one of the first surface and the second surface of the resin layer than inside the resin layer.

Abstract: A ceramic electronic device includes an element body and an external electrode. The element body is formed by laminating a ceramic layer and an internal electrode layer. The external electrode is electrically connected to at least one end of the internal electrode layer. The external electrode includes a baked electrode layer. The baked electrode layer includes a first region and a second region. The first region is contacted with an end surface of the element body and located near a joint boundary with the element body. The second region is located outside the first region and constituting an outer surface of the baked electrode layer. The first region includes a first glass having a predetermined composition. The second region includes a second glass having a predetermined composition.

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: Many electronic devices may employ electrolytic polymer capacitors in their power supplies for noise filtering, decoupling/bypassing, frequency conversion and DC-DC and AC-DC conversion. However, some polymer capacitors exhibit an anomalous charging current phenomenon, which may prevent proper charging and cause failure in power circuits of the electronic devices. Disclosed herein are polymer capacitors that have a wide band gap material layer between an insulator/dielectric and a polymer cathode, a charge depletion region in the insulator/dielectric, or both, that may mitigate the anomalous charging current.

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: There is provided a multilayered ceramic capacitor, including: a ceramic body; an active layer including a plurality of first and second internal electrodes; an upper cover layer; a lower cover layer formed below the active layer, the lower cover layer being thicker than the upper cover layer; first and second external electrodes; at least one pair of first and second internal electrodes repeatedly formed inside the lower cover layer, wherein, when A is defined as ½ of an overall thickness of the ceramic body, B is defined as a thickness of the lower cover layer, C is defined as ½ of an overall thickness of the active layer, and D is defined as a thickness of the upper cover layer, a ratio of deviation between a center of the active layer and a center of the ceramic body, (B+C)/A, satisfies 1.063?(B+C)/A?1.745.

Abstract: A tantalum capacitor includes: first and second surfaces facing in a first direction, third and fourth surfaces facing in a second direction, and fifth and sixth surfaces facing in a third direction; a tantalum body having one surface through which a tantalum wire is exposed in the first direction; and a substrate on which the tantalum body is mounted, wherein the substrate may be an organic-inorganic composite substrate.

Abstract: A chip electronic component includes spacers that each have a predetermined thickness direction dimension on a mounting surface in a direction perpendicular to the mounting surface. The spacers each contain, as a main component, an intermetallic compound containing at least one high-melting-point metal selected from Cu and Ni, and Sn defining a low-melting-point metal.

Abstract: An asymmetric nanocomposite supercapacitor and a method of making the asymmetric nanocomposite supercapacitor. The asymmetric nanocomposite supercapacitor includes a negative electrode with monoclinic tungsten oxide (m-WO3) nanoplates, and a binding compound coated on one face of a substrate, and a positive electrode with a carbonaceous material and a binding compound coated on one face of a substrate. Where the face of the positive electrode and the face of the negative electrode coated with the carbonaceous material and m-WO3 nanoplates, respectively, are separated by and in direct contact with a porous separator.