297results about "Capacitor electrolytes/absorbents" patented technology

A solid electrolytic capacitor includes: a capacitor element including an anode part and a cathode part; a substrate that supports the capacitor element; a sealing body that seals the capacitor element; a first external electrode electrically connected to the anode part; a second external electrode electrically connected to the cathode part; and an adhesive layer disposed between the capacitor element and a first surface of the substrate. At an interface between the first surface and the adhesive layer, a maximum height Rz1 of surface roughness of the first surface is 5 μm or more, and a maximum height Rz2 of surface roughness of the adhesive layer is 3 μm or more.

To provide a method for producing a conductive polymer dispersion suitable for production of a capacitor excellent in performance regarding equivalent series resistance.SOLUTION: A polymerization step of polymerizing a monomer for forming a π - conjugated conductive polymer in a reaction liquid containing a polyanion and water to form a conductive composite containing the π - conjugated conductive polymer and the polyanion, thereby obtaining a conductive polymer dispersion liquid containing the conductive composite and the water, wherein in the polymerization step, the monomer is polymerized so that a total concentration of the π - conjugated conductive polymer and the polyanion with respect to a total mass of the reaction liquid is 1.90 mass% or less.SELECTED DRAWING: None

A capacitor element that includes: a capacitor unit including an anode plate including a core portion and a porous portion on at least one main surface of the core portion, a dielectric layer on a surface of the porous portion, and a cathode layer that includes a solid electrolyte layer on a surface of the dielectric layer, and the solid electrolyte layer contains a conductive polymer; and a sealing layer covering the capacitor unit, wherein the sealing layer contains a first insulating resin and first flattened inorganic fillers, and the first flattened inorganic fillers are oriented in a surface direction orthogonal to a thickness direction in a portion of the sealing layer that covers the capacitor unit.

A composition for an electrolytic capacitor and an electrolytic capacitor including the composition is provided. The composition includes an intrinsically conductive polymer and an electrolyte solution. The electrolyte solution includes an organic solvent, an ionic salt compound and a succinimide-based compound.

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.

This solid electrolytic capacitor includes a first electrode, a dielectric layer covering at least a part of the first electrode, and a second electrode covering at least a part of the dielectric layer. The second electrode includes a solid electrolyte layer, a conductive carbon layer covering at least a part of the solid electrolyte layer, and a metal particle layer covering at least a part of the carbon layer. The solid electrolyte layer includes a pyrrole electrolytic polymerization layer, the carbon layer includes carbon particles and a binder, and the binder includes rubber particles.

The invention relates to the technical field of production and processing of solid-liquid hybrid capacitors, and in particular discloses a method for manufacturing a solid-liquid hybrid capacitor with quantitative electrolyte injection. The method comprises: step S1, placing an aluminum capacitor casing to be injected with an electrolyte on a lifting platform; step S2, injecting a predetermined quantity of electrolyte into an injection tube via a liquid intake tube; and step S4, driving a drive rod and a piston to move downward within the injection tube by a telescopic member, so as to inject the electrolyte in the injection tube into the aluminum capacitor casing. The telescopic member is extended to move the drive rod downward, so that the piston moves downward in the injection tube to inject the electrolyte into the aluminum capacitor casing. A shaking drive member on the drive rod comes into contact with a cover plate on a connecting member to shake the injection tube vertically, so that the electrolyte adhering to the inner wall of the injection tube is shaken off and flows into the aluminum capacitor casing, thereby enabling the predetermined quantity of electrolyte to enter the aluminum capacitor casing completely to the greatest extent, and effectively avoiding the problems of insufficient and inconsistent electrolyte volume in each injection.

Integrated photoelectrochemical capacitor based on bismuth vanadate BiVO4 and poly(3,4-ethylenedioxythiophene) (PEDOT) is characterized in that it comprises a BiVO4 layer, preferably with a thickness ranging from 70 to 1000 nm, deposited on fluorine-doped tin oxide (FTO) conductive glass on one side, and an electrochemically deposited PEDOT layer on FTO glass on the other side, wherein both FTO glass layers are bonded together on the non-conductive side using resin, preferably epoxy, and the conductive sides are connected using tape.

A polymer electrolyte can be formed from (e.g., by polymerizing) a mixture that includes oligomer(s), additive(s), solvent(s), salt(s), and / or any suitable components. The polymer electrolyte can further or alternatively include monomer(s) (e.g., a stiffening monomer that in solution or incorporated into a cured polymer modifies a mechanical property such as flexural modulus of the battery cell; adhesion monomers such as a monomer that interacts with one or more surface within a battery to modify or improve adhesion of the electrolyte and the surface; etc.).

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.

The present invention relates to a dispersion comprising i) a dispersant; ii) at least one polythiophene dispersed in the dispersant i); wherein for the dispersion, the power law exponent n in the Ostwald de l / l / ae / e relationship T = K yn is in the range of 0.40 to 0.65, where T is the shear stress, K is the flow consistency coefficient, and Y is the shear rate dy / dt. The invention also relates to a method for producing a dispersion, to a dispersion obtainable by this method, to a method for producing a layered body, to a layered body obtainable by this method, and to the use of a dispersion for forming a polymer outer layer in a capacitor.

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.

To provide an electrolytic capacitor for suppressing the rise of an ESR even in a high temperature environment.SOLUTION: An electrolytic capacitor includes an anode foil, a cathode body, a separator, and a solid electrolyte layer. The anode foil is made of valve metal and has a dielectric oxide film formed on a foil surface. The cathode body has a cathode foil of valve metal and a carbon layer laminated on the cathode foil. The solid electrolyte layer contains a conductive polymer held in the separator and doped with an acid component. The separator contains a fiber having hydroxyl group, intermolecularly bonded by 1,4-glycosidic bond, and alkali-treated.SELECTED DRAWING: Figure 1

A solid electrolytic capacitor with low ESR even when a conductive layer is formed on cathode foil, and the manufacturing method thereof are provided. The solid electrolytic capacitor includes an anode body having dielectric film, a cathode body, and an electrolyte layer intervening between the anode body and the cathode body. The cathode body includes cathode foil formed of valve action metal and a conductive layer formed a on the cathode foil. The electrolyte layer includes a conductive polymer and contacts at least the conductive layer. The foil capacity of the cathode foil is 20 µF / cm2 or more.

The present invention relates to a dispersion comprising i) a dispersant; ii) at least one polythiophene dispersed in the dispersant i); wherein for the dispersion, the power law exponent n in the Ostwald de l / l / ae / e relationship T = K yn is in the range of from 0.62 to 0.92, where T is the shear stress, K is the flow consistency coefficient, and Y is the shear rate dy / dt; and wherein the dispersion has a solids content of at least 1.5 wt% based on the total weight of the dispersion. The invention also relates to a method for producing a dispersion, to a dispersion obtainable by this method, to a method for producing a layered body, to a layered body obtainable by this method, and to the use of a dispersion for forming a solid electrolyte layer in a capacitor.

Provided are a semiconductor electricity storage material, an electricity storage body, and a laminated electricity storage body, each of which is composed of a biological material and has both semiconductor characteristics and electricity storage characteristics. The present invention relates to a fiber sheet having a fiber mainly composed of chitin or chitosan, formed in a sheet shape, and having a density of 2 g / cm3 or less. The fibers are preferably crystalline fibers / amorphous fibers, and are preferably composed of bundles or granular aggregates of chitin nanofibers or chitosan nanofibers having a width of 3-400 nm. In addition, the semiconductor is preferably an n-type bulk material semiconductor, and preferably has an N-type negative resistance.

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 solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains a sintered porous anode body, a dielectric that overlies the anode body, a solid electrolyte that overlies the dielectric, and an external coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes a conductive polymer containing repeating thiophene units of a certain formula.

An aluminum electrolytic capacitor with good stability comprises a shell, a core package and a rubber plug, and the core package is arranged in the shell in a sealed mode through the rubber plug. A PEDOT: PSS thin film is formed in the core package, and the PEDOT: PSS thin film is doped through 4-bromobenzylamine hydrochloride; the doping weight of the 4-bromobenzylamine hydrochloride in the PEDOT: PSS film is less than 8% of the weight of the PEDOT: PSS. According to the invention, the PEDOT: PSS thin film is treated by 4-bromobenzylamine hydrochloride, so that the electrical conductivity of the weight of PEDOT: PSS is improved, and the internal resistance of the solid aluminum electrolytic capacitor is reduced; and moreover, the acidity enhancement phenomenon caused by moisture absorption of the PEDOT: PSS film is inhibited, so that the stability of the solid aluminum electrolytic capacitor is improved.

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 solid electrolytic capacitor has a high withstand voltage, including: a porous anode body including a valve metal and a dielectric oxide film layer formed on a surface of the valve metal; and an electrolyte layer formed on a surface of the dielectric oxide film layer. The electrolyte layer includes a first conductive polymer layer formed by chemical polymerization and in contact with the dielectric oxide film layer, a second conductive polymer layer formed by electrolytic polymerization and formed on a side opposite to the dielectric oxide film layer with respect to the first conductive polymer layer, and a barrier layer having conductivity and formed between the first conductive polymer layer and the second conductive polymer layer.10 The barrier layer is configured to prevent a conductive polymer layer from being formed by electrolytic polymerization in a region closer to the anode body than the barrier layer.

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).

To provide a solid electrolytic capacitor that has a high withstand voltage.SOLUTION: A solid electrolytic capacitor includes: a porous anode body including a valve metal and a dielectric oxide film layer formed on a surface of the valve metal; and an electrolyte layer formed on a surface of the dielectric oxide film layer. The electrolyte layer includes: a first conductive polymer layer formed by chemical polymerization and in contact with the dielectric oxide film layer; a second conductive polymer layer formed by electrolytic polymerization and formed on a side opposite to the dielectric oxide film layer with respect to the first conductive polymer layer; and a barrier layer having conductivity and formed between the first conductive polymer layer and the second conductive polymer layer. The barrier layer prevents a conductive polymer layer from being formed by electrolytic polymerization in a region closer to the anode body than the barrier layer.SELECTED DRAWING: Figure 2

To provide an electrolytic capacitor with a reduced equivalent series resistance (ESR), and a method for manufacturing the electrolytic capacitor.SOLUTION: A method for manufacturing an electrolytic capacitor includes the steps of: preparing a positive electrode foil 11, a negative electrode foil 12, and a first conductive polymer diffusion liquid including a first conductive polymer component and a first dispersant; a step of applying the first conductive polymer diffusion liquid on a surface of the electrode foils by a coating technique, removing at least a part of the first dispersant, and forming a first conductive polymer layer including the first conductive polymer compound; and a step of manufacturing a capacitor element by using the electrode foils with the first conductive polymer layer formed.SELECTED DRAWING: Figure 3

Provided is an electrolytic capacitor with a resin layer, in which an increase in ESR over time is suppressed. A electrolytic capacitor includes a capacitor element including an anode foil, a cathode foil, and electrolytic solution, a case housing the capacitor element, a sealing member sealing the case, and a resin layer arranged in the vicinity of the sealing member. The resin layer arranged in the vicinity of the sealing member includes epoxy resin composition without ester bond.

A solid electrolytic capacitor having a thickness of about 1,000 µm or less is provided. The capacitor comprises a capacitor element comprising an anode component comprising a porous anode body disposed on a surface of an anode substrate. The anode substrate is formed from a valve metal composition and the porous anode body is formed from a sintered powder containing a valve metal composition and having a thickness of about 650 µm or less. The capacitor element further comprises a cathode coating disposed over a dielectric and the porous anode body. The cathode coating comprises a solid electrolyte containing conductive polymer particles, wherein at least a region of the anode substrate is free of the cathode coating. An anode termination is electrically connected to the region of the anode substrate that is free of the cathode coating, and a cathode termination is electrically connected to the cathode coating.

An electrolytic capacitor according to the present invention includes a laminate and a liquid component impregnated into the laminate. The laminate includes: a positive electrode foil that has a dielectric layer on the surface thereof; a negative electrode foil; a separator; a first conductive polymer layer that is retained on the separator; and a second conductive polymer layer that is formed on the dielectric layer. The first conductive polymer layer contains a first conductive polymer, a polyvinyl alcohol polymer, and a boric acid compound. The second conductive polymer layer contains a second conductive polymer. The boric acid compound is at least one boric acid compound selected from the group consisting of boric acid and borate compounds. The polyvinyl alcohol polymer in the first conductive polymer layer is at least partially crosslinked.