Abstract: There is provided a multilayer ceramic capacitor including: a ceramic body in which a plurality of dielectric layers are stacked; a plurality of first and second internal electrodes alternately formed on the plurality of dielectric layers and including first and second lead-out parts having an overlap area exposed to one surface of the ceramic body, respectively; first and second external electrodes formed on one surface of the ceramic body and electrically connected to the first and second lead-out parts, respectively; and a first insulating layer formed on one surface of the ceramic body to cover exposed portions of the first and second lead-out parts, wherein the first and second lead-out parts are formed to have concave-convex portions alternating with each other in the overlap area therebetween.

Abstract: Provided herein is an improved capacitor and a method for forming an improved capacitor. The method includes providing an anode and forming a dielectric on the anode. A linear-hyperbranched polymer is formed and a conductive polymer dispersion is prepared comprising at least one conducting polymer, one polyanion and the linear-hyperbranched polymer. A layer of the conductive polymer dispersion if formed wherein said dielectric is between the anode and the layer.

Abstract: An electrode of an energy storage device with less deterioration by charge and discharge can be manufactured. In addition, an energy storage device which has large capacity and high endurance can be manufactured. A manufacturing method of an electrode of an energy storage device is provided in which a high-wettability regions and a low-wettability region are formed at a surface of a current collector, a composition containing silicon, germanium, or tin is discharged to the high-wettability regions and then baked to form separate active materials over a surface of the current collector. Thus, an electrode of an energy storage device with less deterioration due to charge and discharge can be manufactured.

Abstract: The invention relates to a supercapacitor with a double electrochemical layer that comprises at least two complexes (2, 3) and at least one spacer (4) between the two complexes (2, 3), the complexes (2, 3) and the spacer (4) being spirally wound together in order to form a coiled member (10), characterized in that it further comprises at least another complex (1) and at least another spacer (4), the other complex (1) and the other spacer (4) being spirally wound together around the coiled member (10) in order to form at least one subsequent coiled member (20), the consecutive coiled members (10, 20) being separated by an electronic insulation space.

Abstract: A process for producing a solid electrolyte capacitor with an anode comprising a sintered fine NbOx powder, where 0.5<x<1.7, includes forming a green anode body. The forming is essentially performed without applying a pressure. The green anode body is sintered so as to provide a sintered anode body. The sintered anode body is electrolytically oxidized so as to provide an electrolytically oxidized anode body. The electrolytically oxidized anode body is provided with a cathode so as to provide the solid electrolyte capacitor.

Abstract: A solid electrolytic capacitor that contains an anode body formed from an electrically conductive powder and a dielectric coating located over and/or within the anode body is provided. The powder may have a high specific charge and in turn a relative dense packing configuration. Despite being formed from such a powder, a manganese precursor solution can be readily impregnated into the pores of the anode. This is accomplished, in part, through the use of a dispersant in the precursor solution that helps minimize the likelihood that the manganese oxide precursor will form droplets upon contacting the surface of the dielectric. Instead, the precursor solution can be better dispersed so that the resulting manganese oxide has a “film-like” configuration and coats at least a portion of the anode in a substantially uniform manner.

Abstract: A lithium-ion capacitor may include a cathode, an anode, a separator disposed between the cathode and the anode, a lithium composite material, and an electrolyte solution. The cathode and anode may be non-porous. The lithium composite material comprises a core of lithium metal and a coating of a complex lithium salt that encapsulates the core. In use, the complex lithium salt may dissolve into and constitute a portion of the electrolyte solution.

Abstract: Provided are a substrate on which carbon nanotubes each having one end connected to the substrate can be formed at a high synthetic rate and from which the carbon nanotubes are less likely to be peeled off. The substrate is a substrate for forming the carbon nanotubes and includes a buffer layer 13 formed on at least one of surfaces of a substrate main body 14 and containing aluminum atoms and fluorine atoms. The carbon nanotube complex includes the substrate and a plurality of carbon nanotubes 11 each having one end connected to a surface of the buffer layer 13.

Abstract: Some novel features pertain to a capacitor structure that includes a first conductive layer, a second conductive layer and a non-conductive layer. The first conductive layer has a first overlapping portion and a second overlapping portion. The second conductive layer has a third overlapping portion, a fourth overlapping portion, and a non-overlapping portion. The third overlapping portion overlaps with the first overlapping portion of the first conductive layer. The fourth overlapping portion overlaps with the second overlapping portion of the first conductive layer. The non-overlapping portion is free of any overlap (e.g., vertical overlap) with the first conductive layer. The non-conductive layer separates the first and second conductive layers. The non-conductive layer electrically insulates the third overlapping portion and the fourth overlapping portion from the first conductive layer.

Abstract: Improved flow through capacitors (FTC) and methods for purifying aqueous solutions are disclosed. For example, FTC electrodes that are activated with a poly-electrolyte are disclosed.

Abstract: An electric storage device includes an electrolyte and an electric storage unit including a positive electrode including a positive-electrode collector electrode and a positive-electrode active-material layer disposed on the positive-electrode collector electrode; a negative electrode including a negative-electrode collector electrode and a negative-electrode active-material layer disposed on the negative-electrode collector electrode and facing the positive-electrode active-material layer; a first insulating layer bonded to the positive electrode and the negative electrode to isolate the positive electrode and the negative electrode from each other; and a region that is sealed with the first insulating layer in plan view and that holds the electrolyte between the positive electrode and the negative electrode, wherein an air permeability P of the first insulating layer satisfies the formula 1250 s/100 cc<P<95000 s/100 cc.

Abstract: A solid electrolytic capacitor having an anode element, a dielectric film covering a surface of the anode element, a conductive polymer layer provided on the dielectric film, and a water-repellent portion provided on the dielectric film not in contact with the conductive polymer layer and containing silicone oil is provided.

Abstract: One embodiment includes a capacitor case sealed to retain electrolyte, at least one electrode disposed in the capacitor case, the at least one electrode comprising an overcurrent protector, a conductor coupled to the overcurrent protector and in electrical communication with a remainder of the electrode, the conductor sealingly extending through the capacitor case to a terminal disposed on an exterior of the capacitor case, a second electrode disposed in the capacitor case, a separator disposed between the electrode and the second electrode and a second terminal disposed on the exterior of the capacitor case and in electrical communication with the second electrode, with the terminal and the second terminal electrically isolated from one another, wherein the overcurrent protector is to interrupt electrical communication between the terminal and the remainder of the electrode at a selected current level.

Abstract: A method of manufacturing a solid electrolytic capacitor includes steps (a) and (b). In the step (a), an element body is placed on a surface of a first terminal component part after applying a first conductive adhesive to the surface of the first terminal component part. The element body is placed with a third side surface of the element body facing the surface of the first terminal component part such that the first conductive adhesive is interposed between the third side surface of the element body and the first terminal component part. The step (b) is performed after the step (a). In the step (b), a second conductive adhesive is applied to fill space between a second terminal component part and a second side surface of the element body such that an opening is not filled with the second conductive adhesive.

Abstract: A solid electrolytic capacitor includes a porous sintered body made of a valve metal, a dielectric layer on the porous sintered body, a solid electrolyte layer on the dielectric layer, and a cathode layer on the solid electrolyte layer. The solid electrolyte layer includes an inner electrode layer covering the dielectric layer inside the porous sintered body and an outer electrode layer covering the inner electrode layer outside the porous sintered body. The outer electrode layer includes a solid particle containing layer formed by applying a dispersion material liquid containing a conductive polymer dispersion material, solid particles and a solvent to the inner electrode layer and then removing the solvent.

Abstract: The present invention provides a nonaqueous electrolyte electricity storage device including a separator that can be produced by a method in which use of a solvent that places a large load on the environment can be avoided and in which control of parameters such as the pore diameter is relatively easy, the nonaqueous electrolyte electricity storage device being capable of trapping ions of metals that tend to form a complex other than lithium. The present invention is a nonaqueous electrolyte electricity storage device including a cathode, an anode, a separator disposed between the cathode and the anode, and an electrolyte having ion conductivity. The cathode and/or the anode is formed of a material containing at least one metal element selected from the group consisting of transition metals, aluminum, tin, and silicon.

Abstract: An electrode including a substrate and a complex metal oxide film deposited on the surface of the substrate. The complex metal oxide film includes manganese oxide, cobalt oxide, and zinc oxide. A main component of the complex metal oxide film is manganese oxide. The stability of the electrode is enhanced by adding little amount of cobalt oxide and zinc oxide. Furthermore, a method relates to fabricate the electrode. The method utilizes a dry process, simpler one-step radio frequency magnetron sputtering to fabricate the electrode of the present invention. The process can reduce residual impurities in the electrode and then prevent the electrochemical capacitor and cell from explosion. Moreover, an electrochemical capacitor and a cell relates to of the above electrode.

Abstract: A method of fabricating a solid electrolytic capacitor of an aspect includes the steps of preparing an anode element with a dielectric layer formed on a surface thereof, forming a solid electrolytic layer on the dielectric layer, forming a carbon layer on the solid electrolytic layer, bringing an aqueous polymer into contact with the carbon layer, and forming a silver paste layer on the aqueous polymer. A method of fabricating a solid electrolytic capacitor and a solid electrolytic capacitor that can be improved in characteristics can thus be obtained.

Abstract: An electricity storage device includes an electricity storage element that is constituted by an electrode body in a positive side and an electrode body in a negative side that face each other while holding a separator; a sealing member that seals a case member accommodating the electricity storage element; at least one electrode protrusion that is either of the electrode bodies, which protrudes from an element end-face of the electricity storage element, at least one current collector plate that is connected to the electrode protrusion; and a terminal member that is installed in the sealing member, a lateral face of the terminal member being connected to a lateral face of the current collector plate.

Abstract: A method of manufacturing a solid electrolytic capacitor having an even conductive polymer layer includes the steps of forming a conductive polymer layer on an anode element by bringing a dispersion containing a conductive solid and a first solvent into contact with the anode element having a dielectric film formed thereon, washing the anode element with a second solvent higher in boiling point than the first solvent, in which the conductive solid can be dispersed, after the conductive polymer layer is formed, and drying the anode element washed with the second solvent at a temperature not lower than the boiling point of the first solvent and lower than the boiling point of the second solvent.

Abstract: An improved capacitor is described. The capacitor has an anode with an anode lead wire extending from a first face of the anode. A dielectric layer is on the anode and a cathode is on the dielectric. An anode lead with an anode base and a cavernous anode protrusion extending from the base is provided wherein the anode lead wire is in electrical contact with the anode protrusion. A cathode lead with a cathode base is provided wherein the cathode base is in electrical contact with the cathode on a side face wherein the side face is adjacent the first face and the cathode base and said anode base are coplanar.

Abstract: An electric double-layer ultracapacitor configured to maintain desired operation at an operating voltage of three volts, where the capacitor includes a housing component, a first and a second current collector, a positive and a negative electrode electrically coupled to one of the first and second current collectors, and a separator positioned between the positive and the negative electrode. The capacitor may also include an electrolyte in ionic contact with the electrodes and the separator, the electrolyte having acetonitrile and a quaternary ammonium salt with a molarity of less than one.

Abstract: The present invention relates to a method to produce a solid electrolytic capacitor by forming a dielectric layer on an anode body comprising a valve-acting metal sintered body having fine pores and forming on the dielectric layer a conductive compound layer to form a cathode, wherein a cathode is formed by repeating the step of dipping the anode body into an inorganic compound solution, an organic compound solution or a conductive-polymer compound dispersion liquid which turns into a conductive compound layer to thereby laminate a conductive layer on the anode body, and the depth of the anode body to be dipped is increased with each dipping; and an apparatus to be used for the method. According to the present invention, a satisfactory cathode layer can be efficiently formed and a solid electrolytic capacitor having a large capacitance and a low equivalent series resistance can be produced.

Abstract: The invention relates to a process for producing electrolyte capacitors with high capacitances and low equivalent series resistance, to electrolyte capacitors produced by this process and to the use of such electrolyte capacitors.

Abstract: An electric double-layer ultracapacitor configured to maintain desired operation at an operating voltage of three volts, where the capacitor includes a housing component, a first and a second current collector, a positive and a negative electrode electrically coupled to one of the first and second current collectors, and a separator positioned between the positive and the negative electrode. At least one of the positive electrode and the negative electrode can include a treated carbon material, where the treated carbon material includes a reduction in a number of hydrogen-containing functional groups, nitrogen-containing functional groups and/or oxygen-containing functional groups.

Abstract: An electric double-layer ultracapacitor configured to maintain desired operation at an operating voltage of three volts, where the capacitor includes a housing component, a first and a second current collector, a positive and a negative electrode electrically coupled to one of the first and second current collectors, and a separator positioned between the positive and the negative electrode. The capacitor may also include a protective coating disposed on an inner surface of the housing for the ultracapacitor.

Abstract: An electrical cell apparatus includes a first current collector made of a multiplicity of fibers, a second current collector spaced from the first current collector; and a separator disposed between the first current collector and the second current collector. The fibers are contained in a foam.

Abstract: An electric double-layer ultracapacitor configured to maintain desired operation at an operating voltage of three volts, where the capacitor includes a housing component, a first and a second current collector, a positive and a negative electrode electrically coupled to one of the first and second current collectors, a separator positioned between the positive and the negative electrode, and an electrolyte in ionic contact with the electrodes and the separator. At least one of the positive electrode and the negative electrode can be made of a carbon based layer having a mesoporosity and/or a microporosity optimized for ionic mobility therewithin.

Abstract: An electroconductive polymer having high electroconductivity, an electroconductive polymer aqueous solution, and an electroconductive polymer film are provided. Further, a solid electrolytic capacitor having a reduced ESR and a method for producing the same are provided. An electroconductive polymer according to an exemplary embodiment of the invention contains a monomolecular organic acid having one anion group and one or more hydrophilic group.

Abstract: Provided is a method of manufacturing a solid electrolytic capacitor, including the steps of: forming a capacitor element including an anode body having a dielectric coating film on a surface thereof; impregnating the capacitor element with a polymerization liquid containing a precursor monomer of a conductive polymer and an oxidant; impregnating the capacitor element impregnated with the polymerization liquid with a silane compound or a silane compound containing solution; and forming a conductive polymer layer by polymerizing the precursor monomer after impregnating the capacitor element with the silane compound or the silane compound containing solution.

Abstract: A solid electrolytic capacitor element having a solid electrolyte layer provided on a dielectric layer formed on a surface of an anode body comprising a valve acting metal including a pore, wherein the anode body is configured in such a way that multiple plate-shaped anode bodies are directly piled and integrated with a solid electrolyte, and adjacent piled anode bodies are joined at a section thereof, and a method for producing the solid electrolytic capacitor element.

Abstract: A lithium ion capacitor includes, as a lithium ion supply source, a lithium metal foil for batteries or capacitors. A current collector 4 and a separator 3 formed of a paper or resin nonwoven fabric are preliminarily pressure-bonded and integrated to opposite surfaces of a lithium metal foil 1 for batteries or capacitors.

Abstract: There is provided an electrolytic capacitor which includes a capacitance portion that includes an anode and a cathode foils wound around, a separator being provided between the foils, a first conductor bar connected to the anode foil, a second conductor bar to the cathode foil, a casing that houses the capacitance portion, the first conductor bar, and the second conductor bar and is provided with an opening, a sealing material fitted to the opening, the sealing material including a first and a second holes, a first lead welded to the first conductor bar within the first hole, a second lead to the second conductor bar the second holed, a first insulating filler filled between the first hole and the first lead and filler being formed in a porous state, and a second insulating filler filled between the second hole and the second lead and being formed in a porous state.

Abstract: A method for reducing the self discharge rate and the variability in the self discharge rate of an electrochemical cell wherein a porous separator is inserted between a cathode and an anode of the cell and the porous separator contains a nanoweb that comprises a plurality of nanofibers that may contain a fully aromatic polyimide and the fully aromatic polyimide has a degree of imidization of greater than 0.51 where degree of imidization is the ratio of the height of the imide C—N absorbance at 1375 cm?1 to the C—H absorbance at 1500 cm?1.

Abstract: There is provided a method to provide a capacitor element including a porous body of a valve metal, and a dielectric layer of an oxide layer of the valve metal. The method includes a first sequential process, and a second sequential process. The first sequential process includes: immersing the capacitor element in a first liquid of dispersion of a conductive polymer obtained by means of oxidation polymerization of thiophene or its derivative in the presence of a dopant of a polymer anion; taking out the capacitor element from the first liquid; and drying the capacitor element. Subsequent second sequential process includes: immersing the capacitor element in a second liquid which dissolves a cyclic organic compound having at least one hydroxyl group; taking out the capacitor element from the second liquid; and drying the capacitor element.

Abstract: An energy storage device includes a first electrode (110, 510) including a first plurality of channels (111, 512) that contain a first electrolyte (150, 514) and a second electrode (120, 520) including a second plurality of channels (121, 522) that contain a second electrolyte (524). The first electrode has a first surface (115, 511) and the second electrode has a second surface (125, 521). At least one of the first and second electrodes is a porous silicon electrode, and at least one of the first and second surfaces comprises a passivating layer (535).

Abstract: A method for preparing a solid electrolytic capacitor and an improved solid electrolytic capacitor is provided. The method includes providing an anode, forming a dielectric on the anode and forming a cathode on the dielectric wherein the cathode comprises interlayers. At least one interlayer comprises a monomer, oligomer or polymer with multifunctional or multiple reactive groups and an adjacent layer comprises a molecule with crosslinkable functionality. The oligomer or polymer with multifunctional or multiple reactive groups on one layer react with the crosslinkable functionality in the adjacent layer.

Abstract: A process for making a valve metal material useful for forming electrolytic devices comprising the steps of: establishing multiple tantalum or niobium components in a billet of a ductile material; working the billet to a series of reduction steps to form said tantalum or niobium components into elongated elements; cutting the resulting elongated elements and leaching the ductile metal from the elements; washing and mixing the cut elements; and forming the cut elements into a sheet. The resulting sheet may be formed into anodes and cathodes and assembled to form a wet electrolytic capacitor.

Abstract: Implementations and techniques for employing phase change materials in ultracapacitor devices or systems are generally disclosed.

Abstract: Embodiments of the present invention generally relate to methods and apparatus for forming an energy storage device. More particularly, embodiments described herein relate to methods of forming electric batteries and electrochemical capacitors. In one embodiment a method of forming a high surface area electrode for use in an energy storage device is provided. The method comprises forming an amorphous silicon layer on a current collector having a conductive surface, immersing the amorphous silicon layer in an electrolytic solution to form a series of interconnected pores in the amorphous silicon layer, and forming carbon nanotubes within the series of interconnected pores of the amorphous silicon layer.

Abstract: An electrochemical cell includes solid-state, printable anode layer, cathode layer and non-aqueous gel electrolyte layer coupled to the anode layer and cathode layer. The electrolyte layer provides physical separation between the anode layer and the cathode layer, and comprises a composition configured to provide ionic communication between the anode layer and cathode layer by facilitating transmission of multivalent ions between the anode layer and the cathode layer.

Abstract: A solid electrolytic capacitor and method for forming a solid electrolytic capacitor with high temperature leakage stability is described. The solid electrolytic capacitor has improved leakage current and is especially well suited for high temperature environments such as down-hole applications.

Abstract: A capacitor includes an electrode and a dielectric layer over the electrode. The dielectric layer includes plural metal oxide particles which are spread, and have an aperture constituted by a space provided between the metal oxide particles. The capacitor further includes an insulating portion on a portion of the electrode facing an opening of the aperture of the dielectric layer. The insulating portion covers the opening of the aperture. This capacitor prevents short-circuiting between the electrodes, thus being highly reliable.

Abstract: A solid electrolytic capacitor includes a solid electrolytic capacitor element having an anode element having a dielectric film formed on a surface thereof and a conductive polymer layer formed on the anode element, an ionic liquid composed of an anion component and a cation component is present in the conductive polymer layer, and the cation component contains a cation having two or more ether linkages.

Abstract: In one embodiment, a structure for a energy storage device may include at one polycrystalline substrate. The grain size may be designed to be at least a size at which phonon scattering begins to dominate over grain boundary scattering in the polycrystalline substrate. The structure also includes a porous structure containing multiple channels within the polycrystalline substrate.

Abstract: An implantable cardioverter defibrillator (“ICD”) comprises a battery, control circuitry and a capacitor assembly. The capacitor assembly includes at least one capacitor, a flex circuit for connection to the control circuitry of the ICD and a first and second support portions. The flex circuit is arranged between the first and second support portions and includes a plurality of tangs for connecting to the anode and cathode of the capacitor(s), as well as to the control circuitry of the ICD.

Abstract: The present invention specifically relates to a polyimide capacitance battery and a manufacturing method thereof. The polyimide capacitance battery of the present invention is obtained by manufacturing a positive electrode and a negative electrode, and then combining the positive and negative electrodes into the capacitance battery, which consists of the positive electrode, the negative electrode, a polymer membrane therebetween, and an electrolyte, wherein the positive electrode material is a mixture of a lithium-ion insertion compound and a porous carbon material, the negative electrode material is a mixture of modified graphite and a porous activated carbon material, the polymer membrane is a polyimide membrane, and the electrolyte is an electrolyte containing a lithium ion compound and an organic solvent.

Abstract: There is provided a tantalum capacitor including: a capacitor body containing a tantalum powder and having a tantalum wire; a molded portion surrounding the tantalum wire and the capacitor body; an anode lead frame electrically connected to the tantalum wire; an cathode lead frame including a mounting portion having the capacitor body mounted thereon and a step formed on a lower surface thereof, and an cathode terminal portion bent at the mounting portion to be closely adhered to one end surface of the molded portion; and an adhesive layer formed between the one end surface of the molded portion and the cathode terminal portion.

Abstract: Embodiments of the present disclosure relate to a solid-state supercapacitor. The solid-state supercapacitor includes a first electrode, a second electrode, and a solid-state ionogel structure between the first electrode and the second electrode. The solid-state ionogel structure prevents direct electrical contact between the first electrode and the second electrode. Further, the solid-state ionogel structure substantially fills voids inside the first electrode and the second electrode.

Abstract: In one aspect, energy storage devices and methods are disclosed that include (preferably in order): a cationic electrode cover layer, a cationic electrode, a cationic exchange polymer electrolyte layer, a separation dielectric layer, an anionic exchange polymer electrolyte layer, an anionic electrode, and an anionic electrode cover layer. In certain embodiments, the device is configured to be initially placed in an ionized state, and optionally, can be configured to be further charged to store energy in an electrostatic mode. In another aspect, ionic solid dielectric materials, energy storage devices including ionic solid dielectric materials, and methods of making and using such materials and devices are disclosed herein.