315results about "Solid electrolytic capacitors" patented technology

A solid electrolytic capacitor includes a laminate in which capacitor elements each including an anode foil, and cathode foils are laminated, an exterior resin covering the laminate and having a first end face on which a part of each anode foil is exposed and a second end face on which a part of each cathode foil is exposed, an anode external electrode electrically connected to each anode foil at the first end face, and a cathode external electrode electrically connected to each cathode foil at the second end face. A first average distance from an end point on the second end face to the respective cathode foils in the lamination direction on the mounting surface side of the exterior resin is smaller than a second average distance from the end point to the respective cathode foils in a region where the capacitor elements and the cathode foils overlap.

A capacitor assembly package structure includes a first bottom electrode structure, a second bottom electrode structure, a capacitor assembly and an insulating package body. The second bottom electrode structure is separate from the first bottom electrode structure. The capacitor assembly is disposed on the first bottom electrode structure and the second bottom electrode structure. The capacitor assembly includes a plurality of capacitor elements electrically connected to each other, and each capacitor element has a positive electrode portion electrically connected to the first bottom electrode structure and a negative electrode portion electrically connected to the second bottom electrode structure. The insulating package body is configured to cover the capacitor elements of the capacitor assembly. Each capacitor element has a raised protruding structure disposed on the positive electrode portion to reduce a shortest vertical distance between the positive electrode portion and the negative electrode portion of each capacitor element.

An electrolytic capacitor including-includes an anode body that is porous, an anode wire including a buried part buried in the anode body and a protrusion part protruding to an outside of the anode body, a dielectric layer disposed on a surface of the anode body, a cathode part covering at least a part of the dielectric layer, an anode terminal electrically connected to the anode wire, and a cathode terminal electrically connected to the cathode part. A corner defined by three sides of the anode body is chamfered by an intersecting surface intersecting each of the three sides, the three sides intersecting each other. The protrusion part is protruded from the intersecting surface and is connected to the anode terminal.

The utility model discloses a core-containing impregnating machine for a solid-state capacitor, the core-containing impregnating machine for the solid-state capacitor comprises an impregnating tank and a sealing cover, the sealing cover comprises a normal sealing cover and an auxiliary sealing cover, the normal sealing cover is arranged on the impregnating tank and covers the impregnating tank, and the auxiliary sealing cover is arranged on one side of the impregnating tank. When the iron bar located in the middle needs to be taken out, the normal sealing cover and the auxiliary sealing cover can completely cover the impregnation tank all the time in the process of moving the normal sealing cover and the auxiliary sealing cover, when the normal sealing cover and the auxiliary sealing cover move to the preset position, the normal sealing cover and the auxiliary sealing cover are far away from each other, a small gap is exposed, and the iron bar is taken out. Then the normal sealing cover and the auxiliary sealing cover are close to each other and abut against each other until the normal sealing cover and the auxiliary sealing cover are closed and completely cover the impregnation tank, and then the normal sealing cover and the auxiliary sealing cover are moved and reset at the same time. When an iron bar located in the middle is taken out, it can still be guaranteed that the area, exposed in the external environment, of the impregnation tank is minimum, and the influence of the external environment on the interior of the impregnation tank is reduced.

The present invention provides a solid electrolytic capacitor in which the rise in ESR is suppressed even after thermal stress loading, and a method for manufacturing the same. [Solution] The solid electrolytic capacitor comprises a pair of electrode foils, an electrolyte layer, and a compound having a functional group having pH buffering capacity. The pair of electrodes contain a valve metal, and a dielectric oxide film is formed on the surface of one of the foils. The electrolyte layer is interposed between the pair of electrode foils and contains an electrolyte solution and a conductive polymer. The compound having a functional group having pH buffering capacity adheres to part or all of the electrode foils. The manufacturing method includes an element assembly step of assembling a capacitor element by interposing a pair of electrode foils or further a separator, a compound attachment step of impregnating the capacitor element with a liquid containing a compound having a functional group having pH buffering capacity after the element assembly step, and a conductive polymer attachment step of impregnating the capacitor element with a dispersion of a conductive polymer after the compound attachment step.

An electrolytic capacitor disclosed herein includes: a stacked body of an anode foil having a dielectric layer formed on a surface thereof and a cathode foil; and a layer containing a conductive polymer and an insulating material disposed between the dielectric layer and the cathode foil. The insulating material is at least one kind of material selected from the group consisting of insulating fibers and insulating particles. No separator is disposed between the anode foil and the cathode foil.

The present disclosure provides an organic conductor having excellent moisture resistance, and an electrolytic capacitor using the same. The organic conductor contains a conjugated polymer and a dopant. The dopant contains: a disulfonaphthalic acid compound having a naphthalene ring, two sulfo groups bonded to the naphthalene ring, and two carboxy groups, or an acid anhydride group thereof, bonded to the naphthalene ring; or an acid anhydride of the disulfonaphthalic acid compound.

To provide a solid electrolytic capacitor having high reliability and high productivity by maintaining high airtightness while maintaining excellent electrical characteristics and a manufacturing method of the same.SOLUTION: A solid electrolytic capacitor comprises: a capacitor element 1 which has an anode body 2, a dielectric oxide covering layer 3 covering the anode body 2, and a cathode body 6 formed on the dielectric oxide covering layer 3 so as to be insulated from the anode body 2; an exterior body 10 which covers the capacitor element 1; a contact layer 11 which is formed in an anode terminal part 9 being an end of the anode body 2 and has a surface 11S with prescribed surface roughness; and an anode side electrode layer (12) which covers the surface 11S.SELECTED DRAWING: Figure 2

The application discloses a sheet type laminated solid-state aluminum electrolytic capacitor and a preparation method thereof. The capacitor comprises a core package and a resin shell. The resin shell is packaged outside the core package and forms the solid-state aluminum electrolytic capacitor. The core package comprises a core package prototype, an anode lead frame and a cathode lead frame. The core package prototype comprises arc-shaped cores and metal shafts. A conductive silver paste layer is arranged in a cathode gap between two adjacent arc-shaped cores. The fixed position of the anode part of each core is at the center of the core, which is surrounded by the annular cathode part. Each core cathode part is integrally connected through the conductive silver paste, so that the whole core package presents a disc structure. The core package with the structure is more compact and has no gap. In the packaging process, the organic resin can be prevented from being squeezed into the core layers, the core deformation damage is prevented, the leakage current and ESR increase is prevented, the capacity shortage caused by the delamination between the cores and even the capacitor failure can be further prevented. Meanwhile, the cathode part of the core has a larger area and smaller ESR.

A module is used in a semiconductor composite device that supplies a direct-current voltage adjusted by a voltage regulator including a semiconductor active element to a load. The module includes a capacitor layer including at least one capacitor portion forming a capacitor, a connection terminal used for electrical connection with at least one of the voltage regulator and the load, and a through-hole conductor formed to penetrate the capacitor portion in a thickness direction of the capacitor layer. The capacitor is electrically connected to at least one of the load and the voltage regulator with the through-hole conductor interposed between the load and the voltage regulator.

This invention provides a solid electrolytic capacitor that can achieve high capacitance. [Solution] The solid electrolytic capacitor comprises a capacitor element containing a conductive polymer. The capacitor element comprises an anode, a first dielectric layer containing a first dielectric (excluding a composite oxide of titanium and aluminum) covering at least a portion of the surface of the anode, a second dielectric layer containing a second dielectric covering at least a portion of the surface of the first dielectric layer, and the conductive polymer covering at least a portion of the surface of the second dielectric layer. The second dielectric is an oxide containing at least one element selected from the group consisting of silicon, aluminum, and zinc. The dielectric constant D1 of the first dielectric is higher than the dielectric constant D2 of the second dielectric. The thickness T2 of the second dielectric layer is 0.003T1 or more and 0.170T1 or less with respect to the thickness T1 of the first dielectric layer.

The present application relates to the field of solid-state capacitor, especially to a kind of solid-state capacitor core package automation forming machine.The present application provides a kind of solid-state capacitor core package automation forming machine, which can conveniently load and unload the core package of solid-state capacitor.A kind of solid-state capacitor core package automation forming machine, including workbench, formation pool and water pool etc.;The back side of workbench is fixed with formation pool, the back side of workbench is also fixed with water pool, water pool is in the left side of formation pool, also includes clamping mechanism and moving mechanism, workbench is connected with the clamping mechanism of clamping the core package of solid-state capacitor and the moving mechanism of moving clamping mechanism and core package.The setting of clamping mechanism and moving mechanism can make the staff conveniently clamped and fixed to the core package, and the operation is simple, and it is convenient for staff to use the automation forming machine, improves the convenient usability of the automation forming machine.

A capacitor capable of exhibiting good electrical properties under a wide variety of conditions is provided. The capacitor comprises a capacitor element consisting of a sintered porous anode body, a dielectric material covering the anode body, and a solid electrolyte containing a conductive polymer, also covering the dielectric. The capacitor also includes multiple anode conduction sections extending from the ends of the capacitor element. Furthermore, the capacitor includes a housing that defines an internal cavity in which the capacitor element is arranged and hermetically sealed.

An electrode foil for an electrolytic capacitor comprises a substrate containing a valve-acting metal and a dissimilar metal composite layer covering the surface of the substrate. The dissimilar metal composite layer includes a mixed region containing a first metal and a second metal different from the first metal. The mixed region constitutes at least 50% of the thickness of the dissimilar metal composite layer. The mixed region is used to achieve a content of at least 1 atom% for both the first metal (M1) and the second metal (M2) relative to the total metal content.

To provide electrolytic capacitors that offer greater flexibility in selecting the material of the capacitor element while also improving sound quality when used in audio equipment. [Solution] The electrolytic capacitor 1 comprises a capacitor element 2, a bottomed cylindrical outer case 3 that houses the capacitor element 2 impregnated with electrolyte, and a sealing body 4 that seals the opening of the outer case 3, wherein an electrically insulating sheet 5 mainly composed of wool fibers is placed between the inner surface 3a of the outer case 3 and the capacitor element 2.

A capacitor element that has an anode body, a dielectric oxide film layer covering the anode body, and a cathode body formed on the dielectric oxide film layer; an exterior body that covers the capacitor element; a contact layer that is on an anode terminal, which is an end portion of the anode body, and has a surface with a predetermined surface roughness; and an anode-side electrode layer that covers the surface are provided.

The present invention relates to a dispersion comprising i) a dispersant; ii) at least one polythiophene dispersed in the dispersant i); and the Ostwald de l / l / ae / e relationship for the dispersion. T =Ky n The exponent n in the power law is in the range of 0.62 to 0.92. T The present invention relates to a dispersion in which is the shear stress, K is the fluid viscosity constant, Y is the shear rate dy / dt, and the dispersion has a solid content of at least 1.5% by weight based on the total weight of the dispersion. The present invention also relates to a process for preparing a dispersion, a dispersion obtained by the process, a process for preparing a laminate, a laminate obtained by the process, and the use of the dispersion for forming a solid electrolyte layer in a capacitor.

This electrolytic capacitor includes a capacitor element and a liquid component. The capacitor element includes a conductive component. The conductive component includes a conductive polymer. The liquid component includes a solvent, a base component, a first acid component, and a second acid component. The total mass content of the base component, the first acid component, and the second acid component in the liquid component is 3% to 15% inclusive. The base dissociation constant pKb of the base component is more than 4.75 and equal to or less than 7.00. The first acid component has a first aromatic ring and two or more first carboxyl groups that are bonded to the first aromatic ring. The second acid component has a second aromatic ring, and a second carboxyl group and a hydroxyl group which are bonded to the second aromatic ring. The mass content Ma1 of the first acid component, the mass content Ma2 of the second acid component, and the mass content Mb of the base component in the liquid component satisfy the following relational expressions. 1.5 ≤ (Ma1 + Ma2) / Mb ≤ 3.0 0.8 ≤ Ma1 / Ma2 ≤ 6.0

A solid electrolytic capacitor includes: an element stack, an anode terminal, a cathode terminal, and an outer member covering the element stack, the anode terminal, and the cathode terminal in a state where a part of each of the anode terminal and the cathode terminal is exposed. The element stack has a plurality of capacitor elements stacked with each other, and a conductive material interposed between adjacent two capacitor elements among the plurality of capacitor elements. Each of the plurality of capacitor elements includes an anode portion and a cathode portion, and the conductive material is disposed on the cathode portion. The anode terminal is connected to the anode portion. The cathode terminal is connected to the cathode portion via a conductive paste. In addition, the cathode terminal has an opposing surface opposing a front end of the element stack with a gap therebetween, and a seal material is filled in at least a part of the gap.

A Ti-Zr alloy in powder form is described. Sintered pellets and capacitor anodes containing the Ti-Zr alloy powder of the present invention are further described.

Various embodiments of an electrical component and a method of forming such component are disclosed. The electrical component includes a substrate having a first major surface, a second major surface, and a cavity disposed in the substrate. The cavity extends between the first major surface and the second major surface. The electrical component also includes an anode electrode that includes a conductive foil layer disposed on the second major surface of the substrate and over the cavity. Tantalum material is disposed within the cavity and includes tantalum particles. A dielectric layer is disposed on the tantalum particles, and an electrolyte cathode layer is disposed on the dielectric layer. The electrical component also includes a cathode electrode disposed over the cavity.

This solid electrolytic capacitor comprises: a capacitor element having an anode part and a cathode part; a cathode lead frame; and an exterior body. The capacitor element has a lower surface and an upper surface on the side opposite the lower surface. The cathode lead frame includes: a cathode lead embedded part that is embedded inside the exterior body and is electrically connected to the cathode part; and a cathode lead exposed part that is exposed to the outside from a first end surface of the exterior body. The cathode lead embedded part includes: a first cathode lead part extending from the first end surface of the exterior body toward the capacitor element; a second cathode lead part extending downward from one end of the first cathode lead part; and a third cathode lead part extending from one end of the second cathode lead part along the lower surface of the capacitor element. The second cathode lead part has a first through hole. When a direction connecting the upper surface and the lower surface of the capacitor element is defined as the height direction, a length in the height direction of the second cathode lead part is defined as H1, and a length in the height direction of a portion between the third cathode lead part and a lowermost end of the first through hole of the second cathode lead part is defined as D1, the relationship of D1 / H1 ≤0.19 is satisfied.

The application discloses a high-density energy storage pulse capacitor, and belongs to the technical field of electric energy storage devices. The capacitor comprises a shell, positive and negative electrode leads and a capacitor core sealed in the shell. The capacitor core comprises a first outer insulation packaging layer, a first electrode unit, a solid-state electrolyte layer, a second electrode unit and a second outer insulation packaging layer arranged in sequence from top to bottom. The two electrode units are both composed of metal conductive three-dimensional frameworks and high-thermal-conductivity ceramic three-dimensional frameworks which are interwoven and in contact, forming a three-dimensionally connected inner pore network. The solid-state electrolyte layer is located between the two electrode units and fills the inner pore network. The application can improve the heat dissipation bottleneck, the contradiction between energy and power and the high-voltage insulation problem of the traditional pulse capacitor under high-power working, and can realize high energy density, high power density, high reliability and excellent heat dissipation capacity.

This capacitor 1a comprises a metal tantalum 10, a conductor 20, and a tantalum oxide film 30. The tantalum oxide film 30 is disposed in contact with the metal tantalum 10, and is disposed between the metal tantalum 10 and the conductor 20. The tantalum oxide film 30 includes a first part 31 and a second part 32 containing fluorine. The second part 32 exists at a position closer to the metal tantalum 10 than the first part 31 in the thickness direction of the tantalum oxide film 30. Additionally, the concentration of fluorine in the second part 32 is lower than the concentration of fluorine in the first part 31.

A method for manufacturing a solid electrolytic capacitor that can ensure sufficient long-term reliability and also can provide a sufficiently high initial capacitance. [Solution] A method for manufacturing a solid electrolytic capacitor (20) includes a first step of preparing a porous body (4) containing a valve action metal and having a dielectric layer (5) formed to cover at least a portion of the surface; a second step of irradiating plasma onto at least a portion of the surface of the porous body to introduce hydroxyl groups; and a third step of forming a first conductive polymer layer by applying a first dispersion liquid containing a first dispersion medium and particles of a second conductive polymer dispersed in the first dispersion medium to the surface of the porous body into which hydroxyl groups have been introduced.

An electrolytic capacitor according to the present invention comprises a capacitor element and a liquid component impregnated in the capacitor element. The capacitor element includes: an anode foil provided with a dielectric layer; a cathode foil; a wound body obtained by winding a separator interposed between the anode foil and the cathode foil; a first electroconductive polymer layer formed on the separator; and a winding stop tape for fixing a winding end portion of the wound body. The coating amount of the first electroconductive polymer layer on the separator is 0.04 mg / cm2 or more. A lactone compound is present in the liquid component in a proportion of 40 mass% or less.

A capacitor assembly package structure and a method of manufacturing the same, and an electronic device are provided. The capacitor assembly package structure includes a capacitor assembly, a plurality of first insulating package bodies, a second insulating package body and an electrode assembly. The capacitor assembly includes a plurality of capacitor structures. The capacitor assembly has a plurality of stacking gaps. The first insulating package bodies are respectively received in the stacking gaps of the capacitor assembly. The second insulating package body is configured to cover the first insulating package bodies and the capacitor structures. The electrode assembly includes a first electrode structure and a second electrode structure. A solid content of each first insulating package body is less than a solid content of the second insulating package body so as to reduce the percentage of multiple pores formed in each stacking gap of the capacitor assembly.

An electrolytic capacitor (1) includes: a capacitor element (10) in which a cathode foil (11) and an anode foil (12) are wound with a separator (13) interposed between the cathode foil (11) and the anode foil (12), and a prescribed solution is held between the cathode foil (11) and the anode foil (12); a main body case (3) that accommodates the capacitor element (10); and a sealing body (5) that seals the main body case (3). The solution is a fat-soluble antioxidant dissolved in a lipophilic solvent, and the separator (13) is configured to be in contact with the sealing body (5).

The utility model discloses a high-capacity low-ESR laminated solid-state aluminum capacitor which comprises a shunt capacitor body, and the shunt capacitor body comprises a plurality of capacitor split bodies which are stacked up and down and connected in parallel. Each capacitor split body comprises a plurality of capacitor chips, a conduction frame and a shell, the capacitor chips and the conduction frame are arranged in the shell, the two surfaces of the conduction frame are both provided with a plurality of superposed capacitor chips, an anode pin and a cathode pin are respectively led out from the two sides, facing the shell, of the conduction frame, and the anode pin and the cathode pin are connected with the shell. The anode pins of the plurality of capacitor split bodies are connected in a conductive manner, and the cathode pins of the plurality of capacitor split bodies are connected in a conductive manner. According to the invention, the plurality of capacitor split bodies which are stacked up and down and connected in parallel are arranged, and the anode pin and the cathode pin of each capacitor split body are connected in a conducting manner, so that the capacity and the yield of the capacitor can be effectively improved.