Abstract: A serviceable energy storage device, such as a capacitor, ultracapacitor or supercapacitor, includes electrodes made from activated carbon produced from a low-cost source, such as thermal coal or another low-cost feedstock. The serviceable energy storage device includes replaceable electrolyte comprising a low-cost co-solvent and salt solution. The activated carbon is manufactured with a pore sizing selected in accordance with the electrolyte such that an electrode material pore configuration matches an ion coupling size of the electrolyte. An improved manufacturing process for the energy storage device is effective at a regular atmospheric environment, allowing the electrolyte to be subsequently replaced at the regular atmospheric environment.

Abstract: The present invention relates to a capacitor having an electrically conductive housing with a housing inner surface and a housing interior substantially defined by the housing inner surface, at least one first electrode having a first polarity and being arranged in the housing interior, at least one separator element being arranged between the housing inner surface and the at least one first electrode, and an electrically conductive coating being arranged between the housing inner surface and the at least one separator element. The housing inner surface includes at least one recess, and the electrically conductive coating is arranged in the at least one recess.

Abstract: A supercapacitor including two electrodes, and a gel electrolyte. The gel electrolyte includes glycerol, benzoquinone, phosphoric acid, and boric acid. The gel electrolyte is non-aqueous. The glycerol, phosphoric acid, and boric acid form a hydrogen bonding network. The benzoquinone is homogeneously dispersed within the hydrogen bonding network. The supercapacitor is included in wearable devices or power banks.

Abstract: An electrolytic capacitor includes a capacitor element having a bottom surface and an upper surface, an anode lead terminal, and outer packaging resin. The electrode lead terminal includes a terminal portion and two anchor portions. The terminal portion has a principal surface exposed from the bottom surface, and has an end side along a longitudinal direction of the anode lead. Each of the two anchor portions includes an upright portion that rises from an end side of the terminal portion toward the upper surface. The upright portion has a first region exposed from the bottom surface in a vicinity of a boundary with the end side, the first region has an inclined surface continuous with the principal surface of the terminal portion, and the inclined surface is inclined to form an obtuse angle with the principal surface of the terminal portion.

Abstract: A disclosed electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body, a dielectric layer formed on a surface of the anode body, a cathode body, and a electrolyte layer and a separator that are disposed between the dielectric layer and the cathode body. The electrolyte layer includes a non-aqueous solvent, conductive particles, and a conductive polymer. An amount of the conductive particles present in a first portion included in the electrolyte layer and located on the dielectric layer side is different from an amount of the conductive particles in a second portion included in the electrolyte layer and located on the cathode body side.

Abstract: A multilayer electronic component includes a body including first and second surfaces opposing each other in the first direction, and third and fourth surfaces connected to the first and second surfaces and opposing each other in a second direction, a first external electrode including a first base electrode layer including glass and Ni and disposed on the third surface, a first intermediate electrode layer including an alloy containing Sn and Ni and disposed on the first base electrode layer, and a first conductive resin layer including a resin and a metal and disposed on the first intermediate electrode layer and extending to the first and second surfaces, a second external electrode including a second base electrode layer disposed on the fourth surface, a second intermediate electrode layer disposed on the second base electrode layer, and a second conductive resin layer disposed on the second intermediate electrode layer.

Abstract: A solid electrolytic capacitor element includes an anode body, a dielectric layer disposed on a surface of the anode body, and a cathode part covering at least a part of the dielectric layer are provided. The cathode part includes a solid electrolyte layer covering the at least the part of the dielectric layer. The solid electrolyte layer contains a first polymer and a second polymer component. The first polymer component includes a monomer unit corresponding to a thiophene compound. The second polymer component includes a polymer anion. A Raman spectrum of a surface layer in the solid electrolyte layer has a peak characteristic for the first polymer component.

Abstract: An electrolytic capacitor including a plurality of anode bodies and cathode bodies, a plurality of anode tabs connected with the plurality of anode bodies, and an anode lead member connected to the plurality of anode tabs. The plurality of anode tabs include a first anode tab group and a second anode tab group. Each of the first and second anode tab group has a through hole Ha. The anode lead member includes a metal plate-shaped anode connection part, the anode connection part being connected to the first anode tab group and the second anode tab group. Each of the first and second node tab group is connected to the anode connection part using a first fixing structure. The first fixing structure is formed by a portion of the anode connection part extending through the through hole Ha and spreading out to form a crimping structure on the other side.

Abstract: A wound capacitor package structure includes a wound assembly, a conductive assembly, a package assembly, a bottom seat plate and a pin protection assembly. The conductive assembly includes a first and a second conductive pin. The package assembly is configured for enclosing the wound assembly. The bottom seat plate is disposed on a bottom side of the package assembly. The pin protection assembly includes a first pin protection layer configured to partially cover the first conductive pin, and a second pin protection layer configured to partially cover the second conductive pin. The first conductive pin includes a first exposed portion exposed outside the package assembly, and the second conductive pin includes a second exposed portion exposed outside the package assembly. The first and the second pin protection layer are disposed on the first and the second exposed portion for protecting the first and the second conductive pin, respectively.

Abstract: Provided is a multilayer electronic component, the multilayer electronic component including: a body including a dielectric layer and internal electrodes alternately disposed with the dielectric layer; an external electrode disposed on the body and connected to the internal electrodes, wherein the external electrode includes a metal including Cu, wherein the metal included in the external electrode has crystallites having a size of 70 nm or more and 100 nm or less, measured from a peak of a plane obtained from an X-ray diffraction pattern.

Abstract: A multilayer ceramic capacitor includes a multilayer body having a dimensional relationship of the dimension in the width direction is greater than the dimension in the length direction which is greater than the dimension in the height direction. The dimension in the width direction of a third surface portion of a first external electrode is smaller than the dimension in the width direction of a first surface portion. The dimension in the width direction of an eighth surface portion of a second external electrode is smaller than the dimension in the width direction of a sixth surface portion. The dimensions in the height direction of a fourth surface portion and a fifth surface portion of the first external electrode are smaller than the dimension in the height direction of the first surface portion.

Abstract: A multilayer ceramic capacitor (MLCC) includes a body including first dielectric layers and second dielectric layers, the body including first to sixth surfaces, a second surface, a third surface, a fourth surface, a fifth surface and a sixth surface; first internal electrodes disposed on the first dielectric layers, exposed to the third surface, the fifth surface, and the sixth surface, and spaced apart from the fourth surface by first spaces; second internal electrodes disposed on the second dielectric layers to oppose the first internal electrodes with the first dielectric layers or the second dielectric layers interposed therebetween, exposed to the fourth surface, the fifth surface, and the sixth surface, and spaced apart from the third surface by second spaces; first dielectric patterns disposed in at least a portion of the first spaces, and second dielectric patterns disposed in at least a portion of the second spaces; and lateral insulating layers.

Abstract: A multilayer ceramic capacitor includes a multilayer body including internal electrode layers and internal dielectric layers alternatively laminated therein, main surfaces on both sides in a lamination direction, end surfaces on both sides in a length direction intersecting the lamination direction, and lateral surfaces on both sides in a width direction intersecting the lamination direction and the length direction, and two external electrodes on the end surfaces of the multilayer body and including base electrode layers. The base electrode layers include an end surface portion on the end surface, and an outer peripheral portion on the main surface and the lateral surface, and the outer peripheral surface portion includes first, second, and third portions respectively having thicknesses t1, t2, and t3 in this order from the end surface toward a center in the length direction, and the relationship of t1>t2>t3 is satisfied.

Abstract: A three-terminal multilayer ceramic capacitor includes at least one surface electrode layer on a surface of a second internal electrode layer connected to a lateral surface external electrode. The surface electrode layer includes at least one of Sn, In, Ga, Zn, Bi, Pb, Fe, V, Y or Cu, which is different from a main component of the second internal electrode layer.

Abstract: An electrolytic capacitor that includes: a resin molded body that includes a stack including a capacitor element and a sealing resin sealing a periphery of the stack; and an anode external electrode and a cathode external electrode on an outer surface of the resin molded body. The capacitor element includes: a valve-action metal substrate having a core and a porous portion along a surface of the core. The anode external electrode includes a first electrode layer in direct contact with the core of the valve-action metal substrate. The first electrode layer includes flat particles having an aspect ratio of 2 or more, and in a cross section, a long axis direction of the flat particles is arranged in a direction along the outer surface of the resin molded body.

Abstract: An electrode including a substrate, zinc (Zn) doped CrV spinel oxide (ZCVO) nanoparticles, a conductive carbon compound, and a binding compound. A mixture of the ZCVO nanoparticles, the conductive carbon compound, and the binding compound at least partially coats a surface of the substrate. A supercapacitor including the electrode. A method of generating hydrogen with the electrode.

Abstract: A multilayer ceramic electronic component includes: a ceramic body including a dielectric layer and a first internal electrode and a second internal electrode a first external electrode and a second external electrode, wherein the ceramic body includes a capacitance formation portion including a first internal electrode and a second internal electrode stacked in a second direction to form capacitance, a first margin portion, a second margin portion, a first cover portion and a second cover portion, wherein an average length of the ceramic body in a first direction satisfies a range of exceeding 1 time and/or less than 3 times an average width (a) of the ceramic body in the second direction, wherein the average width (a) of the ceramic body in the second direction and an average height (b) of the ceramic body in a third direction satisfies a relationship of b>a.

Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrodes alternately stacked on one another, and two external electrodes respectively on two end surfaces of the multilayer body. Each of the dielectric layers includes, at a location coincident with an end portion of a respective one of the internal electrodes, a thick-walled portion thicker in a stacking direction than a portion corresponding in position to a middle portion of a main surface of the multilayer body. When viewed in the stacking direction, positions of some of the thick-walled portions of the dielectric layers are out of alignment with positions of a remainder of the thick-walled portions of the dielectric layers.

Abstract: An electrolytic capacitor includes exterior body and an element stack body including a plurality of capacitor elements. Each of the plurality of capacitor elements includes an anode body, a dielectric layer, and a cathode part covering at least a part of the dielectric layer. The exterior body includes a first principal surface, a second principal surface intersecting the first principal surface, a third principal surface opposite to the first principal surface, and a fourth principal surface opposite to the second principal surface. In at least one first capacitor element among the plurality of capacitor elements, an end surface of an end of the anode body is exposed from the exterior body at least on first principal surface to be electrically connected to a first external electrode. And an end surface of an end of the cathode part is exposed from the exterior body at least on second principal surface to be electrically connected to a second external electrode.

Abstract: Disclosed is an electrolytic capacitor including an anode body, a dielectric layer formed on the anode body, a cathode body, and a separator and an electrolyte that are disposed between the dielectric layer and the cathode body. At least part of the separator is coated with a conductive metal oxide.