Abstract: A film capacitor including a laminate including: a first dielectric film, a second dielectric film, a first metal layer, and a second metal layer, and defining a first end surface and a second end surface opposing each other in a width direction. The first and second dielectric films face each other in a thickness direction. The first and second end surfaces each define an unevenness having a height of 0.07 mm to 0.25 mm and a pitch of 0.07 mm to 0.15 mm continuously along the thickness direction. First gaps having a length of 0.3 mm or greater are between the second dielectric film and a first external electrode on the first end surface, and second gaps having a length of 0.3 mm or greater are between the first or second dielectric film without the second metal layer and a second external electrode on the second end surface.

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 disclosed power storage device includes a power storage element, a case with a bottomed cylindrical shape having an opening at one end and housing the power storage element, and a sealing member for sealing the opening. The case has, in a vicinity of the opening, a first pressing portion pressing a side surface of the sealing member and protruding inward of the case, and a gas vent portion disposed nearer to the one end of the case than an apex which is the most protruded point of the first pressing portion. This can provide a power storage device including an explosion-proof mechanism that has high operational reliability and does not impair airtightness.

Abstract: A multilayer electronic component includes a body including a dielectric layer and first and second internal electrodes, first and second external electrodes respectively disposed on opposing surfaces of the body and connected to the first internal electrode, and a third external electrode disposed on the body, disposed between the first and second external electrodes and connected to the second internal electrode. One of the first and second external electrodes includes a first conductive resin layer, the first conductive resin layer includes first conductive particles including at least one of a first metal particle and a first intermetallic compound, and a first resin, and a ratio N1/N2 is 17% or more, in which N1 is the number of particles having a Feret diameter of 14 ?m or more, among the first conductive particles, and N2 is a total number of first conductive particles.

Abstract: The present disclosure provides an asymmetric supercapacitor that includes a negative electrode, a positive electrode, an ionic liquid electrolyte, and a separator. The negative electrode includes a tomato leaf activated carbon having a hierarchical porosity disposed on a first carbon cloth. The positive electrode includes a polyaniline disposed on a second carbon cloth; an ionic liquid electrolyte. The separator is located between the positive electrode and the negative electrode, and the ionic liquid electrolyte is present in and on the separator. The supercapacitor may be implemented in a heart pulse rate monitoring system.

Abstract: Provided are a conductive polymer-containing dispersion for obtaining a solid electrolytic capacitor with low equivalent series resistance (ESR) while maintaining the capacitance, a method for producing same, and a solid electrolytic capacitor having low ESR while maintaining the capacitance. A conductive polymer-containing dispersion comprising a conjugated conductive polymer (A), a polyanion (B), an additive (C), and a dispersion medium (D), wherein a hydrogen bond term ?H1 of the additive (C) as a Hansen solubility parameter is 5.0 to 20.0 MPa0.5.

Abstract: A supercapacitor including a negative electrode, a positive electrode, an electrolyte, and a separator. The separator is between the negative electrode and the positive electrode, and the electrolyte is present in and on the separator. The negative electrode and the positive electrode include a carbon material selected from a poly-anthraquinone sulfide activated carbon material and a poly-anthraquinone sulfide reduced activated carbon material.

Abstract: A multilayer ceramic capacitor includes a multilayer body including a laminate chip and side gap portions. The laminate chip includes an inner layer portion in which dielectric layers and internal electrode layers are alternately laminated, and outer layer portions respectively on both sides of the inner layer portion in a lamination direction. Side gap portions are on both sides of the laminate chip in a width direction. The multilayer ceramic capacitor further includes external electrodes respectively on both sides of the multilayer body in a length direction. When a thickness of one of the outer layer portions is defined as T1, and a thickness of one of the side gap portions is defined as W1, W1 and T1 are about 20 ?m or less, and about 0.1<|(W1-T1)|/T1<about 0.3 is satisfied.

Abstract: An apparatus suitable for use in an air-conditioning system and configured to provide a plurality of selectable capacitance values includes a plurality of capacitive devices and a pressure interrupter cover assembly. Each of the capacitive devices has a first capacitor terminal and a second capacitor terminal. The pressure interrupter cover assembly includes a deformable cover, a set of capacitor cover terminals, a common cover terminal, and a set of insulation structures. The apparatus also includes a conductor configured to electrically connect the second capacitor terminal of at least one of the capacitive devices to the common cover terminal.

Abstract: Disclosed are systems and methods for a supercapacitor. One form of the supercapacitor has a first electrode comprising a first active material, a second electrode comprising a second active material, and an electrolyte comprising a protic ionic liquid. The protic ionic liquid may be capable of undergoing a faradaic charge transfer with an electrode of a supercapacitor.

Abstract: A multilayer ceramic capacitor includes a capacitor main body, and two interposers on both sides in a length direction of a surface of the capacitor main body. When a distance between a side surface of one interposer on one side in the length direction, and a side surface of the capacitor main body is defined as X1, a distance between another side surface of the one interposer, and another side surface of the capacitor main body is defined as X4, a distance between a side surface of another interposer on another side in the length direction, and the side surface of the capacitor main body is defined as X2, and a distance between another side surface of the other interposer on the other side in the length direction, and the other side surface of the capacitor main body is defined as X3; X2>X3 and X1>X4 are satisfied.

Abstract: A ceramic electronic component includes: a body including dielectric layers and internal electrodes; and external electrodes disposed on the body and connected to the internal electrodes, in which the dielectric layers include a plurality of dielectric crystal grains, an average number of dielectric crystal grains per unit thickness (1 ?m) of the dielectric layers is 6 or more, and td is 2.0 ?m or less, td being an average thickness of at least one of the dielectric layers.

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 multilayer electronic component includes a body including a dielectric layer and an internal electrode, an external electrode disposed outside the body, and an insulating layer disposed on the external electrode. The external electrode is disposed to cover an exposed surface of an outermost surface of the electrode layer, and is formed to have a thickness, equal to or less than a thickness of the body, and the insulating layer is disposed to cover an end of the external electrode, to improve moisture resistance reliability.

Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrode layers stacked together, and external electrodes. The multilayer body includes an inner layer portion and outer layer portions in a stacking direction, and an electrode opposing portion and gap portions in a length direction. The multilayer body further includes conductor portions in the two outer layer portions in the gap portions, and each includes conductor layers stacked in the stacking direction. One of that conductor layers that is closest to a middle in the stacking direction of the multilayer body is closer to the middle in the stacking direction of the multilayer body than another of the internal electrode layers closest in the stacking direction to a main surface of the multilayer body.

Abstract: A component array can include a first multilayer ceramic component having a first terminal at a first end and a second terminal at a second end opposite the first end in a first direction. A second component can have a first terminal at a first end and a second terminal at a second end opposite the first end in the first direction. A heat sink layer can be arranged between the first component and the second component in a second direction that is perpendicular to the first direction. The heat sink layer can include a first metallization layer electrically connecting the first terminal of the first multilayer ceramic component with the first terminal of the second multilayer ceramic component and a second metallization layer electrically connecting the second terminal of the first multilayer ceramic component with the second terminal of the second multilayer ceramic component.

Abstract: A multilayer ceramic capacitor includes a capacitor main body including a multilayer body and external electrodes, the multilayer body including dielectric layers and internal electrode layers stacked alternately, each of the external electrodes being provided on an end surface in a length direction of the multilayer body and being connected to the internal electrode layers, and two interposers on one surface in a stacking direction of the capacitor main body and spaced apart from each other in the length direction, the interposers including bonding surfaces bondable to the one surface of the capacitor main body and including inner edge portions which are opposite to each other and each having a length longer than a length in a width direction of the multilayer body.

Abstract: A multilayer ceramic capacitor includes a second alloy portion including one metal element provided in a greatest amount among metal elements of an internal electrode layer, and one or more metal elements among a metal group including Sn, In, Ga, Zn, Bi, Pb, Cu, Ag, Pd, Pt, Ph, Ir, Ru, Os, Fe, V, and Y is provided between a second dielectric ceramic layer and a first internal electrode layer, and between a second dielectric ceramic layer and a second internal electrode layer, respectively.

Abstract: An electronic component includes an electronic element and an interposer board. The electronic element includes a multilayer body and external electrodes at 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. The board end surfaces include a metal layer including a Pd-containing layer, and an electrolessly-plated layer on an outer periphery of the Pd-containing layer.

Abstract: An apparatus includes a case capable of receiving a plurality of capacitive elements, each capacitor element having at least two capacitors, and each capacitor having a capacitive value. The apparatus also includes a cover assembly with a peripheral edge secured to the case. The cover assembly includes, for each of the plurality of capacitive elements, a cover terminal that extends upwardly from the cover assembly generally at a central region of the cover assembly. Each cover terminal is connected to one of the at least two capacitors of the respective one of the plurality of capacitive elements. The cover assembly also includes, for each of the plurality of capacitive elements, a cover terminal that extends upwardly from the cover assembly at a position spaced apart from the cover terminal generally at the central region of the cover assembly.