Abstract: The present invention relates to a capacitor comprising i) an electrode body comprising an electrode material, wherein a dielectric layer comprising a dielectric material at least partially covers a surface of the electrode body; ii) a solid electrolyte layer comprising a solid electrolyte material that at least partially covers a surface of the dielectric layer, wherein the solid electrolyte material comprises a conductive polymer; iii) an anode contact that is in contact with the electrode body and that comprises copper, metal-plated copper or a copper-containing alloy; and iv) a cathode contact that is in contact with the solid electrolyte layer; wherein the capacitor further comprises at least one metal ion migration inhibitor. The present invention also relates to a process for the production of a capacitor, to a capacitor obtainable by such a process, to electronic circuit comprising the capacitor according to present invention and to the use of these capacitors in electronic circuits.

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 selection method includes: obtaining or providing multilayer ceramic capacitors each having a multilayer structure in which each of a plurality of ceramic dielectric layers and each of a plurality of internal electrode layers are alternately stacked; measuring a ratio of (a current value at 10 V/?m when a direct voltage is applied to a plurality of ceramic dielectric layers at 125 degrees C.)/(a current value at 10 V/?m when a direct voltage is applied to the plurality of the ceramic dielectric layers at 85 degrees C.), with respect to each multilayer ceramic capacitor; determining whether the ratio is in a predetermined range; and selecting a multilayer ceramic capacitor or multilayer ceramic capacitors each having a ratio in the predetermined range as a desired multilayer ceramic capacitor.

Abstract: A capacitor module includes a capacitor element, a plurality of connection terminals for electrically connecting the capacitor element to a semiconductor module and a power supply that are another equipment, and an exterior coating that includes a resin film having electrical insulating property and wraps the capacitor element except the plurality of connection terminals.

Abstract: A capacitor component includes a body including a dielectric layer and internal electrode layers, with the dielectric layer interposed therebetween; and an external electrode disposed on the body and connected to the internal electrode layers. Each of the internal electrode layers has a capacitance formation portion disposed to overlap an adjacent internal electrode layer, and a lead-out portion extending from the capacitance formation portion and connected to the external electrode. A ratio (H2/H1) of a height difference H2 to a height difference H1 is 0.2 or less, where the height difference H2 is a height difference between the capacitance formation portion and the lead-out portion of a lowermost internal electrode layer the height difference H1 is a height difference between the capacitance formation portion and the lead-out portion of an uppermost internal electrode layer. An average thickness of the dielectric layer is 420 nm or less.

Abstract: Strong and flexible electrically conductive polymers comprising hydrogen-bondable moieties are described herein. The electrically conductive polymers are formed by polymerizing an electron donating aromatic monomer in the presence of an oxidant, solvent, and/or hydrogen-bondable additive, such as an additive comprising a hydroxyl group.

Abstract: An electronic component includes: a multilayer capacitor including a capacitor body and a pair of external electrodes, respectively disposed on external surfaces of the capacitor body in a first direction; and an interposer disposed below the multilayer capacitor and including an interposer body, a pair of via holes penetrating through the interposer body, and a pair of via electrodes, respectively disposed in the via holes to be connected to the pair of external electrodes, respectively. 0.24T?t?0.3T, where “T” is a maximum height of the multilayer capacitor and “t” is a maximum height of the interposer.

Abstract: The electronic component includes an element body 4 having plurality of side faces 5a to 5d along a circumference direction. The element body 4 includes insulation layers 16a to 16d covering the plurality of side faces 5a to 5d along the circumference direction in a continuous manner, and melting points of the insulation layers 16a to 16d are lower than melting points of dielectric layers 10 and 11 included in the element body 4. The main component of the insulation layer is glass.

Abstract: Disclosed is a method for producing an electrolytic capacitor, the method including the steps of preparing an anode foil that includes a dielectric layer, a cathode foil, and a fiber structure; preparing a conductive polymer dispersion liquid that contains a conductive polymer component and a dispersion medium; producing a separator by applying the conductive polymer dispersion liquid to the fiber structure and then removing at least a portion of the dispersion medium; and producing a capacitor element by sequentially stacking the anode foil, the separator, and the cathode foil. The dispersion medium contains water. The fiber structure contains a synthetic fiber in an amount of 50 mass % or more. The fiber structure has a density of 0.2 g/cm3 or more and less than 0.45 g/cm3.

Abstract: An electrolytic solution for an electrochemical device a solvent, an ionic substance, and an additive agent, the additive agent containing ?-methyl-?-butyrolactone and ?-valerolactone.

Abstract: An electrical energy storage device comprises a housing having a first end, a second end, a first side, and a second side; a first electrode disposed in the housing adjacent the first side; a second electrode disposed in the housing adjacent the second side; and an electrolyte mixture disposed between the first electrode and the second electrode, the electrolyte mixture containing a plurality of ions. In an implementation, a channel disposed in the housing permits ions to flow adjacent to the first end and a barrier in the housing prevents ions from flowing adjacent to the second end. In another implementation, some of the ions are magnetic. In a further implementation, some of the ions have a greater density than other ions. Charging of the electrical energy storage device is enhanced by applying a magnetic field to the electrical energy storage device or rotating the device.

Abstract: An electrode body which achieves not only high initial capacitance of an electrolyte capacitor but also achieves stable capacitance even after being exposed to high temperature environment, and the electrolyte capacitor including the electrode body are provided. The electrode body is used for a negative electrode of the electrolyte capacitor, and the electrode body includes a negative electrode foil formed by a valve action metal, and a carbon layer formed on the negative electrode foil. The carbon layer includes a first spherical carbon and a second spherical carbon, and the first spherical carbon has a BET specific surface area larger than the second spherical carbon.

Abstract: A capacitor component includes a body including dielectric layers, first and second internal electrodes, laminated in a first direction, facing each other, and first and second cover portions, disposed on outermost portions of the first and second internal electrodes, and first and second external electrodes, respectively disposed on both external surfaces of the body in a second direction, perpendicular to the first direction, and respectively connected to the first and second internal electrodes. An indentation including a glass is disposed at at least one of boundaries between the first internal electrodes and the first external electrode or one of boundaries between the second internal electrodes and the second external electrode.

Abstract: Provided is a hybrid electrolytic capacitor having large capacitance, low ESR, and superior high-frequency characteristics and high-temperature endurance.

Abstract: A multilayer ceramic capacitor includes a capacitor main body including a multilayer body in which dielectric layers and internal electrode layers are alternately laminated, and external electrodes respectively on two end surfaces of the multilayer body and connected to the internal electrode layers, an interposer at a board mounting surface of the capacitor main body, and an insulating resin film in a gap between the board mounting surface and a capacitor-facing surface of the interposer which is opposed to the board mounting surface.

Abstract: A substrate-type multi-layer polymer capacitor (MLPC), including a casing, a core, a first electroplated terminal and a second electroplated terminal. The core is arranged in an inner cavity of the casing. The casing is formed by joining two first packaging plates with two second packaging plates. The first and second electroplated terminals are formed by electroplating. The first electroplated terminal is configured to cover one end of the casing to form an anode electrically led out from the core, and the second electroplated terminal is configured to the other end of the casing to form a cathode electrically led out from the core. The first packaging plate includes a substrate, an electrode plate and two metal plates. The first and second electroplated terminals are integrally sealed with the casing.

Abstract: An electronic component includes an electronic element and an interposer board. The electronic element includes a multilayer body and external electrodes at a pair of multilayer body end surfaces of the multilayer body and connected to internal electrode layers. The interposer board includes board end surfaces, board side surfaces orthogonal to the board end surfaces, and board main surfaces orthogonal to the board end surfaces and the board side surfaces. One of the board main surfaces is located in a vicinity of the electronic element and joined with one of the multilayer body main surfaces in a vicinity of the interposer board. The interposer board is an alumina board. A mark portion is provided on one of the board main surfaces.

Abstract: In one aspect, separator-free energy storage devices are disclosed. Such devices comprise a first electrode and a second electrode. In some embodiments, the first electrode is opposite the second electrode. The first and/or second electrodes are formed from a nanocomposite material. The nanocomposite material includes plurality of carbon nanostructures, each of which is at least partially coated with a layer of material comprising a transition metal oxide. In some embodiments, the coating layer is uniform or substantially uniform in one or more properties.

Abstract: A multilayer electronic component includes: a body including a dielectric layer and a plurality of internal electrodes alternately disposed with the dielectric layer; and external electrodes disposed on the body, wherein the external electrodes respectively include an electrode layer disposed on the body and connected to the plurality of internal electrodes and a conductive resin layer disposed on the electrode layer and including a first conductive particle, a second conductive particle, and a resin, wherein the first conductive particle is a Cu particle, the second conductive particle is a Cu particle having a surface on which Ag is disposed.

Abstract: A supercapacitor-like device is described that uses a porous, conductive foam as the electrodes. After the device is charged, an explosive wave front can be used to remove electrolyte from the metal foam. This creates a large net charge on each electrode, which will readily flow through a load placed across the electrodes. The removal of charge can potentially occur on a time scale of microseconds, allowing a supercapacitor to be used in pulsed power applications. The creation of this net charge requires significant energy, meaning this concept may also be suitable for removing kinetic energy from objects.