994results about "Capacitor electrolytes/absorbents" patented technology

The invention discloses a solid-state capacitor and a preparation method thereof, and the preparation method comprises the following steps: (1) core package winding: interposing electrolytic paper between an anode foil and a cathode foil, and winding to form a core package; (2) a repairing step: immersing the core package into a formation liquid for repairing treatment; (3) a drying step: carrying out drying treatment on the core package in the step (2); (4) an impregnation step: immersing the core package in the step (3) into a first impregnation liquid for impregnation treatment; performing drying; immersing into a second impregnation liquid for impregnation treatment, and drying; (5) a polymerization step: immersing the core cladding in the step (4) into an oxidation liquid for polymerization; and (6) assembling, girdling and aging treatment.

To provide a thin film capacitor having a large capacitance. A thin film capacitor includes a metal foil having roughened main surfaces, a dielectric film covering the main surfaces, an electrode layer contacting the metal foil through an opening formed in the dielectric film and having a surface formed as a metal terminal, an electrode layer contacting the dielectric film without contacting the metal foil and having a surface formed as a metal terminal, and an electrode layer contacting the dielectric film without contacting the metal foil. The electrode layers include a conductive polymer layer contacting the dielectric film.

A solid electrolytic capacitor according to one aspect of the present disclosure includes: an anode body made of a valve metal; a dielectric layer formed on the anode body; and a solid electrolyte layer formed on the dielectric layer. The solid electrolyte layer includes: a first conductive polymer layer formed on the dielectric layer and heterogeneously doped with a monomolecular dopant; a block layer formed on the first conductive polymer layer; and a second conductive polymer layer formed on the block layer and composed of a self-doped-type conductive polymer containing a plurality of side chains containing a functional group that can be doped. The block layer blocks a migration of the self-doped-type conductive polymer from the second conductive polymer layer into the first conductive polymer layer and / or a migration of the self-doped-type conductive polymer from the second conductive polymer layer into pores of the porous anode body.

A capacitor that is capable of exhibiting good electrical properties under a wide variety of different conditions is provided. The capacitor contains a capacitor element that includes a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric and includes a conductive polymer. The capacitor also contains multiple exposed anode lead portions that are electrically connected to respective anode terminations and a planar cathode termination that is electrically connected to the solid electrolyte.

The invention relates to the technical field of electrolytic capacitors, in particular to a high-frequency rapid charge and discharge aluminum electrolytic capacitor for a servo motor and a manufacturing method, the high-frequency rapid charge and discharge aluminum electrolytic capacitor comprises an anode foil, a cathode foil, a capacitor shell and electrolyte, porous electrolytic paper is arranged between the anode foil and the cathode foil, and oxide film layers are arranged on two sides of the anode foil. A stable and compact oxidation film is generated on the surface of the anode foil through the phosphoric acid formation liquid, so that the anode foil can withstand high-current impact, and the charging and discharging speed is greatly improved. According to the high-frequency rapid charging and discharging aluminum electrolytic capacitor for the servo motor and the manufacturing method, the high-frequency rapid charging and discharging aluminum electrolytic capacitor for the servo motor has excellent rapid charging and discharging performance, high voltage resistance, good temperature stability, long service life, high reliability and good heat dissipation performance.

Provided is an electrolytic capacitor including a capacitor element and a liquid component. The capacitor element includes an anode foil having a dielectric layer on a surface of the anode foil, and a conductive polymer component in contact with at least a portion of the dielectric layer. The conductive polymer component contains a self-doped conductive polymer. The liquid component contains at least one solvent selected from the group consisting of alkylene glycols having 4 or more carbon atoms and polyalkylene glycols having a repeating structure of oxyalkylene having 3 or more carbon atoms.

A capacitor element 1 comprises a positive electrode plate 10 that has a porous layer 12 on at least one main surface, a dielectric layer 20 that is provided on the surface of the porous layer 12, a negative electrode layer 30 that is provided on the surface of the dielectric layer 20, and an insulation layer 40 that is provided on the surface of the dielectric layer 20 so as to partially overlap the negative electrode layer 30, the relationship d1≥0.2×d2 being satisfied, where d1 is the layer thickness of a portion 34 of the insulation layer 40 where the negative electrode layer 30 and the insulation layer 40 overlap at an end 40a that overlaps the negative electrode layer 30, and d2 is the layer thickness of the insulation layer.

A solid electrolytic capacitor that includes: an anode plate including a core portion, a porous layer having pores on at least one main surface of the core portion, and a dielectric layer on a surface of the porous layer and extending into the pores of the porous layer; and a cathode layer that includes a solid electrolyte layer on a surface of the dielectric layer. The solid electrolyte layer includes a conductive polymer layer inside the pores of the porous layer, the conductive polymer layer comprising a mixture of a conductive polymer and an insulating material. The insulating material is a material which contains an OH group, a COOH group, a CO group, or an NH2 group in a molecule, has hygroscopicity, and does not have a function as a dopant for the above-described conductive polymer.

Provided is a conductive polymer solution capable of providing an electrolytic capacitor having high capacity and exhibiting low ESR characteristics. A conductive polymer solution having a pH of 1.5-5.0 is used, the solution containing 0.01-10% by mass of a polythiophene (A) containing at least one type of structural unit selected from the group consisting of structural units represented by general formula (1) and structural units represented by general formula (2), 0.001-20% by mass of an epoxy compound (B) having at least two or more epoxy groups, and water. In general formulae (1) and (2), R2 represents a hydrogen atom, a methyl group, an ethyl group, a C3-6 linear or branched alkyl group, or a fluorine atom, m represents an integer of 1-10, and n represents 0 or 1. ] # imgabs0 #

Provided is an electrolytic capacitor including a capacitor element and a liquid component. The capacitor element includes an anode foil having a dielectric layer on a surface of the anode foil, and a conductive polymer component in contact with at least a portion of the dielectric layer. The conductive polymer component contains a self-doped conductive polymer. A difference ΔHSP1 between a Hansen solubility parameter HSPp of the self-doped conductive polymer and a Hansen solubility parameter HSPe of the liquid component is 9.0 MPa0.5 or more and 11.4 MPa0.5 or less.

A solid electrolytic capacitor that includes an anode body having a porous part on surface thereof and a manufacturing method thereof including a step (i) of forming a first solid electrolyte layer on a dielectric layer and a step (ii) of forming a second solid electrolyte layer on the first solid electrolyte layer. The first and second solid electrolyte layers contain first and second conductive polymers, respectively. The step (i) includes a step (i-a) of supplying a reaction solution containing a monomer and a silane compound to the surface of the dielectric layer, and a step (i-b) of forming the first solid electrolyte layer by polymerizing the monomer in the supplied reaction solution to form the first conductive polymer. The monomer contains a compound represented by the following formula (I) (in the formula (I), R represents an alkyl group whose carbon number is within a range of 1 to 10).

A modified molecular sieve-based solid electrolyte, comprising a molecular sieve-based solid electrolyte and a modifying substance dispersed in the porous structure of the molecular sieve-based solid electrolyte, wherein the modifying substance can generate a coordination effect with carriers in the molecular sieve-based solid electrolyte; and the modifying substance contains one or more of nitrogen, oxygen, and sulfur elements. The modified molecular sieve-based solid electrolyte can well meet the requirements of assembling an all-solid-state battery, and enable the all-solid-state battery to have electrochemical properties superior to those of liquid electrolyte-based energy storage devices.

[Problem] To provide: a semiconductor electricity storage material formed from a bio-material and having semiconductor properties and electricity storage properties; an electricity storage body; and a layered electricity storage body. [Solution] The present invention has fibers containing chitin or chitosan as the primary component, is in the form of a sheet, and has a density of 2 g / cm3 or less. Preferably the fibers are crystallized or amorphous fibers. Preferably the fibers are chitosan nanofibers having a width of 3 to 400 nm, or are formed from bundles or particle-like aggregates of chitosan fibers. Preferably the semiconductor is an n-type bulk semiconductor and preferably has N-type negative resistance.

This electrolytic capacitor comprises a multilayer body and a liquid component with which the multilayer body is impregnated. The multilayer body includes: an anode foil that has a dielectric layer on the surface thereof; a cathode foil that has an inorganic layer on the surface thereof; a separator; and a first conductive polymer layer that is held by the separator. The first conductive polymer layer contains a first conductive polymer. The ratio of the area of the first conductive polymer layer to the area of the surface of the separator is 80% or more. The first conductive polymer layer, which is held by the separator, is in close contact with the inorganic layer.

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.

The invention provides a preparation method of a special aluminum electrolytic capacitor for a low-temperature-resistant detonator trigger, and the method comprises the following steps: cutting a positive electrode foil and a negative electrode foil, and riveting the cut positive electrode foil and negative electrode foil with a positive guide pin and a negative guide pin; placing electrolytic paper between the riveted positive electrode foil and negative electrode foil, winding the electrolytic paper to form a core package, injecting electrolyte into the core package, and sealing the core package in an aluminum shell by using colloidal particles to obtain a semi-finished capacitor; and cleaning the semi-finished product capacitor, sleeving, and sequentially carrying out primary aging sorting, secondary aging sorting, appearance observation and inspection to obtain the capacitor. The preparation method of the aluminum electrolytic capacitor special for the low-temperature-resistant detonator trigger is simple in production process, common in material and low in price, and the prepared aluminum electrolytic capacitor is excellent in electrical performance, wide in working temperature range and small in size.

A capacitor includes a capacitor element having a predetermined liquid preparation held between a pair of electrodes facing each other across a separator, a body case for housing the capacitor element, and a sealing member made of rubber for sealing seals the body case. A supplying portion is provided in contact with the sealing member to supply the liquid preparation held in the capacitor element to the sealing member. The liquid preparation has a lipid-soluble sealing member deterioration preventing agent dissolved in a lipophilic solvent. The sealing member deterioration preventing agent supplied by the supplying portion to the sealing member permeates the sealing member. The ratio by weight of the sealing member deterioration preventing agent in the sealing member to the sealing member is 0.1% by weight to 25% by weight.

The invention relates to an organic / inorganic hybridized electrolyte glue solution composition, which is characterized in that silane coupling agent terminated polyurethane or oligomeric isocyanate and silica sol or silane coupling agent modified silica sol are used as adhesive components of an electrolyte glue solution, and organic resin and inorganic silica sol are effectively hybridized; on the basis, a conductive polymer liquid is added to form a conductive layer with adhesiveness, and an electrolyte glue solution is coated on the formed foil and cured to form the conductive layer to obtain the electrode foil, so that the capacitor prepared from the electrode foil has better electrostatic capacity, high-frequency performance and stability; particularly, the capacitor has lower loss tangent (tan delta) and equivalent series resistance (ESR).

An electrode foil for an electrolytic capacitor includes: an anode body that includes a core part and a porous part disposed on a surface of the core part, and contains a first metal; a first dielectric layer that covers at least a part of the porous part; and a second dielectric layer that covers at least a part of the first dielectric layer. The second dielectric layer contains an oxide of a second metal. The first dielectric layer includes a first part having a thickness T1 and a second part having a thickness T2 smaller than the thickness T1.

An electrolytic capacitor includes a capacitor element including an anode part and a cathode part, an exterior body sealing the capacitor element, a first external electrode electrically connected to the anode part and exposed from the exterior body, a second external electrode electrically connected to the cathode part and exposed from the exterior body, and a first base electrode connecting the anode part and the first external electrode. The first base electrode contains a first sintered metal, and the first sintered metal is in contact with an end surface of the anode part not covered with the exterior body and is in contact with the first external electrode. A relation 0.5≤W1 / Tpc≤100 is satisfied, where Wp represents a width of the end surface of the anode part, and Tpc represents a thickness of the first sintered metal at a center of the width Wp.

To provide a conductive polymer solution for producing an electrolytic capacitor that can thicken an outer layer containing a conductive polymer formed in a capacitor anode and can achieve excellent coating of a corner and an edge.SOLUTION: A conductive polymer solution contains a polythiophene (A) at least containing any structural unit represented by the general formula (1) (where R1 is a hydrogen atom, a C1-6 linear or branched alkyl group, or a halogen atom, m is an integer of 1-6, n is 0 or 1), and a diamine compound (B).SELECTED DRAWING: None

The invention relates to a production process of a high-stability anhydrous aluminum electrolytic capacitor and the capacitor manufactured by the same, and the capacitor is manufactured by the following method: activating electrolytic paper: activating the surface of the electrolytic paper by adopting an activating agent containing a polyethylene glycol derivative, and removing a solvent to obtain activated electrolytic paper; the activated electrolytic paper, the anode foil, the activated electrolytic paper and the cathode foil are sequentially stacked and wound into a columnar core structure, in the process, the aluminum pad leading-out piece is riveted to the two electrode foils, and an element A is obtained; dipping: dipping the element A in the anhydrous electrolyte, so that the element A is fully dipped in the anhydrous electrolyte to obtain an element B; and assembling: assembling the element B, a shell, a sealing plug and an electronic component to obtain the anhydrous aluminum electrolytic capacitor. Through activating treatment, the adsorption efficiency of the element A on the water-free electrolyte is improved, meanwhile, the phenomenon that under the extreme condition, the capacitance is likely to be reduced can be reduced, and the durability of the element A is improved.

The invention discloses a high-voltage lead type aluminum electrolytic capacitor, and relates to the technical field of aluminum electrolytic capacitors. The aluminum electrolytic capacitor comprises a cathode aluminum foil, an anode aluminum foil, electrolyte and electrolytic paper, the cathode aluminum foil is obtained through formation at the formation voltage of 3-20 VF; the anode aluminum foil is obtained through formation at the formation voltage of 590-660 VF; the thickness of the electrolytic paper is 30-40 [mu] m, and the density of the electrolytic paper is 0.70-0.80 g / cm < 3 >; the temperature resistance of the electrolyte is above 130 DEG C; and the voltage of the high-voltage lead type aluminum electrolytic capacitor is 400-450 V. According to the high-voltage lead-type aluminum electrolytic capacitor provided by the invention, by optimizing the materials of the cathode aluminum foil, the anode aluminum foil, the electrolyte and the electrolytic paper, the temperature resistance of the lead-type aluminum electrolytic capacitor with the high voltage of 400-450V can be improved to 130 DEG C from the traditional 105 DEG C, so that the problem of early failure caused by the fact that the temperature suddenly exceeds 105 DEG C can be reduced, and the service life of the high-voltage lead-type aluminum electrolytic capacitor is prolonged. The product performance and the high-temperature resistance are improved.

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 disclosed manufacturing method includes, in the following order: a polymer layer formation step of forming a conductive polymer layer containing a conductive polymer component; a stacked body formation step of forming a stacked body including the conductive polymer layer by stacking an anode foil, a cathode foil, and a separator such that the separator is disposed between the anode foil and the cathode foil; and an impregnation step of impregnating the stacked body with a liquid component. The polymer layer formation step includes: a step (a) of applying an application liquid containing the conductive polymer component and a liquid medium to a predetermined surface and the separator; and a step (b) of forming the conductive polymer layer on the predetermined surface and the separator by removing a portion of the liquid medium from the applied application liquid. The liquid medium includes water and an organic compound that does not boil at 100° C. under 1 atm. In the step (b), a portion of the liquid medium is removed such that the organic compound remains in the conductive polymer layer.

A process for the production of a layer composition, comprising the process steps: a) provision of a substrate with a substrate surface; b) formation of a stabilized electrically conductive polymer layer on at least a pail of the substrate surface, the formation of the stabilized electrically conductive polymer layer comprising the process steps: b1) formation of an electrically conductive polymer layer comprising an electrically conductive polymer on at least a part of the substrate surface; b2) application of a liquid stabilizer phase, comprising at least one stabilizer and at least one solvent or dispersant, onto the electrically conductive polymer layer obtained in process step b1) for the formation of a stabilizer layer, wherein the at least one stabilizer is a flavonoid. The present invention also relates to a layer composition and to the use of a layer composition.

The invention discloses a chip solid electrolyte tantalum capacitor capable of ensuring moisture resistance and a preparation method thereof, and belongs to the field of capacitor preparation. The tantalum capacitor comprises a tantalum anode, a dielectric layer, a solid electrolyte layer, a graphite silver paste layer, a hydrophobic moisture-proof layer, an epoxy resin shell, a lead frame, a positive lead and a negative lead. Wherein the tantalum anode is sequentially coated with the dielectric layer, the solid electrolyte layer and the graphite silver paste layer from inside to outside; the graphite silver paste layer is adhered to the lead frame through a conductive adhesive to lead out an anode lead and a cathode lead; the graphite silver paste layer is coated with a hydrophobic moisture-proof layer; and the hydrophobic moisture-proof layer is coated and packaged with an epoxy resin shell. According to the tantalum capacitor, the graphite silver paste layer is coated with the specific hydrophobic moisture-proof layer, so that the moisture-proof performance of the chip-type solid electrolyte tantalum capacitor is effectively improved on the premise that the preparation process difficulty, cost and finished product volume are not increased, and the chip-type solid electrolyte tantalum capacitor is suitable for being used in a high-temperature and high-humidity environment; and the product performance is ensured.

The invention relates to the technical field of aluminum electrolytic capacitor manufacturing, in particular to an anti-lightning aluminum electrolytic capacitor and a manufacturing method thereof.The anti-lightning aluminum electrolytic capacitor comprises an anode foil, a cathode foil, electrolytic paper, electrolyte, a rubber plug, a guide pin and an aluminum shell, the guide pin is riveted to the surfaces of the anode foil and the cathode foil, and the anode foil and the cathode foil are isolated through the electrolytic paper; and winding to form a capacitor core package, infiltrating the core package by the electrolyte, filling the core package into an aluminum shell, sealing the aluminum shell by a rubber plug to form an aluminum electrolytic capacitor, and aging the capacitor to obtain a finished product. According to the anti-lightning aluminum electrolytic capacitor and the manufacturing method thereof provided by the invention, the high-conductivity covering film and the optimized positive foil structure are adopted, so that the anti-lightning aluminum electrolytic capacitor has relatively high compression strength and anti-lightning capability, stable performance can be kept when the anti-lightning aluminum electrolytic capacitor is subjected to strong current impact such as lightning stroke, and the reliability and the safety of electronic equipment are improved.

The invention belongs to the field of paper for aluminum electrolytic capacitors, and particularly relates to a high-voltage-resistance low-loss electrolytic capacitor diaphragm and a preparation method thereof. According to the diaphragm, a plant fiber single-layer paper base with the beating degree of 90-98 degrees SR is adopted, hydrophilic polymer coatings distributed in a discontinuous point shape are formed on the two surfaces of the diaphragm through gravure coating, the coating coverage rate ranges from 20% to 70%, and the total gluing amount ranges from 0.2 g / m to 6.0 g / m. According to the structure, on the premise that the thickness is not obviously increased, the smoothness of the diaphragm is obviously reduced, and the electrolyte adsorbability is enhanced, so that the ESR is reduced to 20-22 m omega, and meanwhile, it is ensured that the breakdown voltage is larger than or equal to 550 V. The aluminum electrolytic capacitor is suitable for high-performance and miniaturized aluminum electrolytic capacitors.

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 separator that is layered on the positive electrode foil; a negative electrode foil; and a conductive polymer layer that is formed on the surface of the dielectric layer and in voids in the separator. The positive electrode foil and the separator are bonded together by the conductive polymer layer.