Entries |
Document | Title | Date |
20080198534 | Solid capacitor and manufacturing method thereof - A solid capacitor and the manufacturing method thereof are disclosed. The solid capacitor consists of a dielectric layer and two electrodes. A plurality of holes formed by an opening process is disposed on surface of the dielectric layer. The two electrodes connect with the dielectric layer by the holes. By means of a plurality of high temperature volatile matters, the plurality of holes is formed on surface of the dielectric layer during sintered process. The holes are connected with the outside so as to increase surface area of the dielectric layer and further the capacity is increased. And the solid capacitor stores charge by physical means. Moreover, the solid capacitor can be stacked repeatedly to become a multilayer capacitor. | 08-21-2008 |
20080204975 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCTION THEREOF - A solid electrolytic capacitor having a solid electrolyte layer, comprising: the solid electrolyte layer having an electrically-conductive polymer hybrid layer containing an electrolytically-polymerized electrically-conductive polymer and a chemically-polymerized electrically-conductive polymer. | 08-28-2008 |
20080218941 | MULTIFUNCTIONAL POWER STORAGE DEVICE - A device and method for the fabrication of a power storage device or ultracapacitor manufactured from a process comprising nickel, chromium or stainless steel sintered on a metal substrate at a temperature of at least 850° C. in an inert atmosphere. The method further comprises stainless steel as the substrate. A catalyst of magnesium, manganese and iron combine with Nitric acid and de-ionized water may also be used. | 09-11-2008 |
20080218942 | Conductive polymer solid electrolytic capacitor - A solid electrolytic capacitor having an electrolytic layer containing at least two types of ionic liquids and a conductive polymer is provided. Preferably, the ionic liquids include at least one type of ionic liquid for supplying an excellent impedance characteristic and at least one type of ionic liquid for supplying an excellent withstand voltage characteristic. Thus, a solid electrolytic capacitor exhibiting a high withstand voltage and an excellent impedance characteristic can be obtained. | 09-11-2008 |
20080232035 | SOLID ELECTROLYTIC CAPACITOR CONTAINING A PROTECTIVE ADHESIVE LAYER - An electrolytic capacitor containing a protective adhesive layer positioned between the dielectric layer and the solid electrolyte layer (e.g., a conductive polymer layer, manganese dioxide) is generally disclosed. The protective adhesive layer can include a polymer having a repeating unit with a functional hydroxyl group, such as poly(vinyl alcohol). For instance, the polymer can be at least 90 mole % hydrolyzed. The polyvinyl alcohol can be a co-polymer of vinyl alcohol and a monomer, such as an acrylic ester like a methacrylic ester (e.g., methyl methacrylate). | 09-25-2008 |
20080232036 | SOLID ELECTROLYTIC CAPACITOR AND METHOD OF PRODUCING THE SAME - The present invention relates to a solid electrolytic capacitor provided with a anode made of a metal or an alloy having valve action, a dielectric layer formed on the anode, and an electrolyte layer consisting of a conductive polymer layer formed so as to have contact with a portion of the region on the dielectric layer surface and a manganese dioxide layer formed so as to have contact with the other portion of the region on the dielectric layer surface. | 09-25-2008 |
20080285210 | Metal capacitor and manufacturing method thereof - A metal capacitor in which an electric conductivity is significantly improved by applying a metal material, instead of a solid electrolyte and electrolyte of an aluminum electrolytic capacitor, and a manufacturing method thereof is provided. A metal capacitor | 11-20-2008 |
20090040690 | Electrochemical capacitor - [Problems] To provide an electrochemical capacitor that is excellent in corrosion resistance and input/output characteristics and has a good storage capability.
| 02-12-2009 |
20090059477 | Laser-Welded Solid Electrolytic Capacitor - A solid electrolytic capacitor that is capable of withstanding laser welding without a significant deterioration in its electrical performance is provided. The capacitor contains an anode body, dielectric layer overlying the anode body, and a solid organic electrolyte layer overlying the dielectric layer. Furthermore, the capacitor of the present invention also employs a light reflective layer that overlies the solid organic electrolyte layer. The present inventors have discovered that such a light reflective layer may help reflect any light that inadvertently travels toward the capacitor element during laser welding. This results in reduced contact of the solid organic electrolyte with the laser and thus minimizes defects in the electrolyte that would have otherwise been formed by carbonization. The resultant laser-welded capacitor is therefore characterized by such performance characteristics as relatively low ESR and low leakage currents. | 03-05-2009 |
20090103245 | Metal capacitor and manufacturing method thereof - A metal capacitor in which an electric conductivity is significantly improved by applying a metal material for an electrolyte and a manufacturing method thereof is provided. The metal capacitor includes a terminal increase-type metal member; a metal oxide layer being formed on the terminal increase-type metal member; an insulating layer being formed on the main electrode layers and the terminal increase-type metal member to externally expose the first and the second electrode withdrawing portions of the terminal increase-type metal member; a main electrode layer being formed at the through-hole forming portion to fill in the plurality of through-holes formed on the through-hole forming portion of the terminal increase-type metal member; a first and a second lead terminals; and a sealing member sealing the terminal increase-type metal member connected to the first and the second lead terminals to externally expose the first and the second lead terminals. | 04-23-2009 |
20090109602 | METHOD FOR MANUFACTURING ELECTROLYTIC CAPACITOR AND ELECTROLYTIC CAPACITOR - A method for manufacturing an electrolytic capacitor comprising: forming a capacitor element having an anode foil and a cathode foil; impregnating the capacitor element with a dispersion solution containing particles of an electrically conductive solid or aggregates thereof and a dispersion solvent to form an electrically conductive solid layer having the particles of the electrically conductive solid or the aggregates thereof in the capacitor element; and impregnating the capacitor element having the electrically conductive solid layer with a solvent containing no supporting salt. | 04-30-2009 |
20090122469 | Electrochemical capacitor and electrode material for use therein - The electrochemical capacitor of the invention comprises a nonaqueous electrolyte and a pair of polarizable electrodes, wherein carbon nanotubes are used as an electrode material for at least one of the positive electrode and the negative electrode, the carbon nanotubes have a specific surface area of at least 700 m | 05-14-2009 |
20090147446 | Solid electrolytic capacitor and manufacturing method thereof - The present invention provides a solid electrolytic capacitor having sufficiently low impedance at high frequencies in which a conductive polymer formed on a dielectric oxide film has good adherence to the dielectric oxide film, and a manufacturing method of the solid electrolytic capacitor. The solid electrolytic capacitor of the present invention includes a valve metal; a dielectric oxide film layer formed on a surface of the valve metal; and a solid electrolyte layer, comprising a conductive polymer layer, formed on the dielectric oxide film layer. The conductive polymer layer contains, as an additive, 0.1 wt % to 30 wt % of an organic oligomer having an average degree of polymerization of 2 to 100. | 06-11-2009 |
20090161298 | HYBRID CAPACITOR - A hybrid capacitor is provided which includes a substrate, at least one plate capacitor and at least one through hole capacitor. The substrate has through holes and the plate capacitors are on the substrate. At least one through hole capacitor and at least one plate capacitor are in parallel. The through hole capacitor at least includes an anode layer, a first dielectric layer, a first cathode layer and a second cathode layer. The anode layer is disposed on an inner surface of at least one through hole, and a surface of the anode layer is a porous structure. The first dielectric layer is disposed on the porous structure of the anode layer and covered with the first cathode layer. The first cathode layer is covered with the second cathode layer. A conductivity of the second cathode layer is larger than a conductivity of the first cathode layer. | 06-25-2009 |
20090195968 | SOLID ELECTROLYTIC CAPACITOR - A dielectric layer and a solid electrolyte layer are formed on the surface of a positive electrode member composed of a metallic material having a valve action or a conductive oxide. Then, a conductive carbon paste, and a conductive metal paste comprising a metal conductive powder and an acrylic resin having a weight average molecular weight of 60,000 or less are laminated, and thus a conductor layer is formed. By doing so, a solid electrolytic capacitor element is obtained. This solid electrolytic capacitor element is sealed with resin, and a large-capacity solid electrolytic capacitor is thereby obtained in which even when it is subjected to thermal stress caused by soldering, an equivalent series resistance (ESR) and a leakage current are not increased. | 08-06-2009 |
20090231782 | SOLID ELECTROLYTIC CAPACITOR - A solid electrolytic capacitor that suppresses capacitance decrease caused by thermal loads. The solid electrolytic capacitor includes an anode body, a dielectric layer formed on a surface of the anode body, a conductive polymer layer formed on the dielectric layer, and a cathode layer formed on the conductive polymer layer. The conductive polymer layer contains a filler material having a negative linear expansion coefficient. | 09-17-2009 |
20090244811 | Electrolytic Capacitor Assembly Containing a Resettable Fuse - A fused electrolytic capacitor assembly that offers improved performance characteristics in a convenient and space-saving package is provided. More specifically, the fused electrolytic capacitor assembly contains an electrolytic capacitor element and a resettable fuse contained within a case. The capacitor assembly also contains a stress absorbing material that is positioned adjacent to and in contact with the resettable fuse. By selecting a stress absorbing material having a certain modulus and a certain degree of inherent flexibility, the present inventors believe the resettable fuse is better able to expand to its full capacity upon exposure to an excessive current. In this manner, the resettable fuse is able to better function during use. | 10-01-2009 |
20090244812 | Hermetically Sealed Capacitor Assembly - A capacitor assembly that includes a conductive polymer electrolytic capacitor that is enclosed and hermetically sealed within a ceramic housing in the presence of an inert gas is provided. Without intending to be limited by theory, the present inventors believe that the ceramic housing is capable of limiting the amount of oxygen and moisture supplied to the conductive polymer of the capacitor. In this manner, the conductive polymer is less likely to oxidize in high temperature environments, thus increasing the thermal stability of the capacitor assembly. | 10-01-2009 |
20090290290 | POROUS VALVE METAL THIN FILM, METHOD FOR PRODUCTION THEREOF AND THIN FILM CAPACITOR - Provided are a porous valve metal thin film having a great surface area, a method for the production thereof, and a thin film capacitor having a great capacity density utilizing the thin film as an anode. The porous valve metal thin film is produced by a method comprising: 1) a step of preparing a thin film in which a valve metal and a hetero-phase component have a particle diameter within a range of from 1 nm to 1 μm, and the valve metal and the hetero-phase component are uniformly distributed; 2) a step of subjecting the thin film to a heat treatment so as to adjust the particle diameter and to appropriately sinter the film; and 3) a step of removing the hetero-phase portion. | 11-26-2009 |
20100033905 | CONDUCTIVE POLYMER SUSPENSION AND METHOD FOR PRODUCING THE SAME, CONDUCTIVE POLYMER MATERIAL, ELECTROLYTIC CAPACITOR, AND SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCING THE SAME - The present invention provides a conductive polymer suspension for providing a conductive polymer material having a high conductivity and a method for producing the same, and in particular, a solid electrolytic capacitor having a low ESR and a method for producing the same. The conductive polymer suspension is produced by: synthesizing a conductive polymer by chemical oxidative polymerization of a monomer giving the conductive polymer by using an oxidant in a solvent containing a dopant consisting of a low-molecular organic acid or a salt thereof; purifying the conductive polymer; and mixing the purified conductive polymer and an oxidant in an aqueous solvent containing a polyacid component. | 02-11-2010 |
20100091432 | Conductive polymer composition, method of producing the same, and solid electrolytic capacitor - A conductive polymer composition with excellent water resistance and conductivity, and a solid electrolytic capacitor with low ESR, excellent reliability, and especially moisture resistance. The conductive polymer composition includes a conductive polymer, a polyanion that includes a hydrophilic group, where the polyanion functioning as a dopant of the conductive polymer. At least a part of the hydrophilic group of the polyanion is condensed with an epoxy group in a compound with one epoxy group. A solid electrolytic capacitor of the present invention includes the conductive polymer composition. | 04-15-2010 |
20100103590 | SOLID ELECTROLYTIC CAPACITOR AND PRODUCTION METHOD THEREOF - The present invention relates to a solid electrolytic capacitor comprising a layer of self-doping type conductive polymer having a crosslink between polymer chains thereof on the dielectric film formed on a valve-acting metal. The present invention enables to stably produce thin capacitor elements suitable for laminated type solid electrolytic capacitors, showing less short-circuit failure and less fluctuation in the shape of element, which allows to increase the number of laminated elements in a solid electrolytic capacitor chip to make a capacitor having a high capacity, and having less fluctuation in equivalent series resistance. | 04-29-2010 |
20100110614 | SOLID ELECTROLYTIC CAPACITOR - A solid electrolytic capacitor includes: an anode made of a valve metal or an alloy of a valve metal; a dielectric layer formed on the surface of the anode; an electrolyte layer formed on the dielectric layer; a cathode layer formed on the electrolyte layer; and a resin outer package covering a capacitor element composed of the anode, the dielectric layer, the electrolyte layer and the cathode layer. The electrolyte layer is composed of a first electrolyte region provided on the dielectric layer, a second electrolyte region provided on the first electrolyte region and in contact with the cathode layer, and a third electrolyte region provided, in a portion of the electrolyte layer on which the cathode layer is not provided, in contact with the second electrolyte region or the first electrolyte region. | 05-06-2010 |
20100134956 | SOLID ELECTROLYTIC CAPACITOR AND METHOD OF MANUFACTURING THE SAME - A solid electrolytic capacitor with a high voltage resistance property and a method of manufacturing the same is disclosed. The solid electrolytic capacitor is formed including an electrolyte layer on an anode electrode formed of a metal oxide dielectric by a polymerization reaction in which the polymerizable monomer or the monomer solution is mixed with an oxidant, wherein a Lewis base having a steric hindrance group with a nitrogen atom or a Lewis base having a hydrophilic radical with a nitrogen atom is adhered to a surface of the dielectric or incorporated in the electrolyte layer. | 06-03-2010 |
20100149729 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING THE SAME - A solid electrolyte capacitor comprising an anode with a valve action composed of a metal material or a conductive oxide and having a dielectric layer, a solid electrolyte and a conductive layer, formed in this order on the surface thereof, characterized in that said conductive layer comprises conductive powders which have a particle diameter distribution wherein at least two peaks of particle diameter are present, and the minimum peak particle diameter thereof is in the range of larger than 100 nm but not larger than 1 μm. The conductive powder preferably has at least one peak having a particle size 8 to 75 times the minimum peak of particle size. The solid electrolyte capacitor has very low equivalent series resistance (ESR). | 06-17-2010 |
20100165546 | CAPACITOR AND METHOD FOR PRODUCING THEREOF - A capacitor having a high degree of electric strength, a high electrostatic capacity, and a low ESR, which can be readily downsized, is provided. The capacitor according to the present invention includes an anode made of porous valve metal, a dielectric layer formed by oxidizing the surface of the anode, and a solid electrolyte layer formed on the surface of the dielectric layer. The solid electrolyte layer includes a π conjugated conductive polymer, a polyanion, and an ion-conductive compound. | 07-01-2010 |
20100165547 | SOLID ELECTROLYTIC CAPACITOR - A capacitor element includes a positive electrode body made of valve metal, a dielectric oxide layer on the positive electrode body, a solid electrolytic layer made of conductive polymer on the dielectric oxide layer, and a negative electrode layer on the solid electrolytic layer. A solid electrolytic capacitor includes the capacitor element, a package made of insulating resin covering the capacitor element, a base electrode provided at an edge surface of the package and made of non-valve metal coupled with the positive electrode body, a diffusion layer for connecting the positive electrode body to the base electrode, an external electrode on the base electrode, and an external electrode connected to the negative electrode layer. The solid electrolytic capacitor reduces the number of components and processes to reduce its cost and to have a small size, and has a small equivalent series resistance and a small equivalent series inductance. | 07-01-2010 |
20100172068 | SOLID ELECTROLYTIC CAPACITOR AND METHOD OF MANUFACTURING THE SAME - Provided are a solid electrolytic capacitor including an anode having a dielectric coating film on a surface thereof and a solid electrolyte layer including a conductive polymer, the solid electrolyte layer containing a cyclic siloxane and a chelating agent, and a method of manufacturing the same. | 07-08-2010 |
20100182735 | Diced Electrolytic Capacitor Assembly and Method of Production Yielding Improved Volumetric Efficiency - A surface-mountable electrolytic capacitor with improved volumetric efficiency includes an electrolytic capacitor element, anode and cathode terminations, an encapsulation material and external terminations. The capacitor element has first and second opposing end surfaces and an anode wire extending from the first end surface that is electrically connected to a first anode termination portion. A first cathode termination portion is conductively adhered to a surface of the capacitor element, and a second portion is perpendicular to the first portion and parallel to the second end surface of the capacitor element. Encapsulating material surrounds the capacitor element to form a device package that is subsequently diced to improve volumetric efficiency and optionally expose the anode and cathode terminations on opposing end surfaces. First and second external terminations may be formed over the exposed portions of anode and cathode terminations to wrap around to one or more given surfaces of the device package. | 07-22-2010 |
20100182736 | SOLID ELECTROLYTIC CAPACITOR - Provided is a solid electrolytic capacitor excellent in reliability, particularly in ESR property. In a solid electrolytic capacitor having a solid electrolyte layer, the solid electrolyte layer has a conductive polymer layer formed by a chemical polymerization method or an electrolytic polymerization method, using a polymerization liquid containing at least a monomer and a dopant-introducing agent. The dopant-introducing agent contains a dopant-introducing agent containing at least alkylammonium ions as a cationic component. The dopant-introducing agent in the polymerization liquid may further contain a dopant-introducing agent containing at least metal ions as a cationic component. | 07-22-2010 |
20100188802 | CONDUCTIVE COMPOSITION AND PRODUCTION METHOD THEREOF, ANTISTATIC COATING MATERIAL, ANTISTATIC COATING, ANTISTATIC FILM, OPTICAL FILTER, AND OPTICAL INFORMATION RECORDING MEDIUM, AND CAPACITORS AND PRODUCTION METHOD THEREOF - A conductive composition comprises a π conjugated conductive polymer, a dopant composed of polyanion, and at least one crosslinking site forming compound selected from (a) compounds having a glycidyl group and (b) compounds having a hydroxyl group and one selected from the group consisting of allyl, vinyl ether, methacryl, acryl, methacrylamide, and acrylamide groups. An antistatic coating material comprises a π conjugated conductive polymer, polyanion, at least one crosslinking site forming compound selected form the above (a) and (b), and a solvent. An antistatic coating is formed by applying the above-mentioned antistatic coating material. In a capacitor comprising an anode composed of a valve metal porous body; a dielectric layer formed by oxidizing the surface of the anode; and a cathode formed on the dielectric layer, the cathode has a solid electrolyte layer formed by crosslinking complexes of a π conjugated conductive polymer and a dopant composed of a polyanion. | 07-29-2010 |
20100202102 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING THE SAME - A solid electrolytic capacitor includes an anode foil, a solid electrolyte provided on the anode foil and made of conductive polymer, and a cathode foil provided on the solid electrolyte and facing the anode foil across the solid electrolyte. The anode foil includes an anode base made of aluminum, a rough surface layer made of aluminum and provided on a surface of the anode base, and a dielectric oxide layer provided on the rough surface layer and contacting the solid electrolyte. The cathode foil includes a cathode base made of aluminum, and a nickel layer provided on a surface of the cathode base and contacting the solid electrolyte. The nickel layer faces the dielectric oxide layer of the anode foil across the solid electrolyte. The nickel layer is made of nickel and nickel oxide. This solid electrolytic capacitor has a large capacitance and a low equivalent series resistance while being inexpensive and highly reliable. | 08-12-2010 |
20100271757 | SOLID ELECTROLYTIC CAPACITOR AND FABRICATION METHOD THEREOF - To provide a solid electrolytic capacitor having a high capacitance and an excellent heat resistance. A solid electrolytic capacitor includes: an anode | 10-28-2010 |
20100284129 | DISPERSION LIQUID OF A CONDUCTIVE COMPOSITION, A CONDUCTIVE COMPOSITION, AND A SOLID ELECTROLYTIC CAPACITOR - Disclosed is an conductive composition that has high conductivity and excellent heat resistance and is suitable for use as a solid electrolyte in a solid electrolytic capacitor. Also disclosed is a solid electrolytic capacitor that uses the conductive composition as a solid electrolyte and has low ESR and high reliability under high temperature conditions. A dispersion of the conductive composition comprises an conductive polymer produced by oxidation polymerization of thiophene or a derivative of thiophene in water or an aqueous liquid formed of a mixture composed of water and a water-miscible solvent in the presence of polystyrenesulfonic acid and at least one material selected from phenolsulfonic acid novolak resins comprising repeating units represented by general formula (I) [wherein R represents hydrogen or a methyl group] and sulfonated polyesters; and a high-boiling solvent. The solid electrolytic capacitor comprises the conductive composition as a solid electrolyte. | 11-11-2010 |
20100302712 | Solid Electrolytic Capacitor with Facedown Terminations - A solid electrolytic capacitor that contains a capacitor element that includes an anode body, dielectric layer, and solid electrolyte is provided. The capacitor also contains an anode lead that is electrically connected to the anode body by a refractory metal paste (e.g., tantalum paste). The use of such a refractory metal paste allows the anode lead to be sinter bonded to a surface of the anode body after it is pressed. In this manner, a strong and reliable connection may be achieved without substantially decreasing the surface area of the lead that is available for connection to a termination. Furthermore, because the lead is not embedded within the anode body, the capacitor may be configured so that little, if any, portion of the lead extends beyond the anode body. This may result in a highly volumetrically efficient capacitor with excellent electrical properties. | 12-02-2010 |
20100328847 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING THE SAME - To reduce the increase in leakage current in a molding process. A solid electrolytic capacitor includes: an anode | 12-30-2010 |
20110019340 | ELECTRICALLY CONDUCTIVE POLYMER SUSPENSION, ELECTRICALLY CONDUCTIVE POLYMER COMPOSITION, SOLID ELECTROLYTIC CAPACITOR, AND METHOD FOR PRODUCING THE SAME - An electrically conductive polymer composition has high electrical conductivity, excellent water resistance, high density, and excellent smoothness. Also disclosed is a solid electrolyte capacitor which is prevented from the reduction in electrical conductivity, has low ESR, and also has excellent reliability. Further disclosed is a method for producing the solid electrolyte capacitor. The electrically conductive polymer composition is produced by removing a dispersion medium from an electrically conductive polymer suspension, wherein the electrically conductive polymer suspension includes: an electrically conductive polymer material including a dopant composed of a polyacid or a salt thereof and an electrically conductive polymer; at least one compound (A) selected from erythritol, xylitol and pentaerythritol; and the dispersion medium. | 01-27-2011 |
20110051322 | POROUS AMORPHOUS SILICON-CARBON NANOTUBE COMPOSITE BASED ELECTRODES FOR BATTERY APPLICATIONS - 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. | 03-03-2011 |
20110075325 | POWER STORAGE DEVICE - To provide an electrolyte easily manufactured at low cost, and a power storage device including such an electrolyte. The power storage device includes a positive electrode having a positive electrode current collector and a positive electrode active material, a negative electrode having a negative electrode current collector and a negative electrode active material, and an electrolyte having 1-piperidine-1-propanesulfonic acid or 1-piperidine-1-butanesulfonic acid, which is provided between the positive electrode and the negative electrode. The capacitance can be increased when water is added to the obtained electrolyte and the temperature of the power storage device rises. | 03-31-2011 |
20110080690 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCING SAME - A solid electrolytic capacitor that is able to maintain a high capacitance and low ESR, and also exhibits a high degree of heat resistance. The solid electrolytic capacitor | 04-07-2011 |
20110080691 | SOLID ELECTROLYTIC CAPACITOR, METHOD FOR PRODUCING SAME, AND SOLUTION FOR SOLID ELECTROLYTIC CAPACITOR - A solid electrolytic capacitor that is able to maintain a high capacitance and low ESR, and also exhibits a high degree of heat resistance. The solid electrolytic capacitor | 04-07-2011 |
20110096466 | External Coating for a Solid Electrolytic Capacitor - A solid electrolytic capacitor that includes an anode body, a dielectric overlying the anode body, a solid electrolyte that contains one or more conductive polymers and overlies the dielectric, and an external coating that overlies the solid electrolyte, is provided. The external coating includes at least one carbonaceous layer (e.g., graphite) and at least one metal layer (e.g., silver). In addition to the aforementioned layers, the external coating also includes at least one conductive polymer layer that is disposed between the carbonaceous and metal layers. Among other things, such a conductive polymer layer can reduce the likelihood that the carbonaceous layer will delaminate from the solid electrolyte during use. This can increase the mechanical robustness of the part and improve its electrical performance. | 04-28-2011 |
20110149476 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCING SOLID ELECTROLYTIC CAPACITOR - 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. | 06-23-2011 |
20110164349 | STRUCTURAL ELECTROCHEMICAL CAPACITOR - A structural electrochemical capacitor that includes at least one pair of electrodes and a solid electrolytic material disposed between the electrodes which, taken collectively, have sufficient mechanical strength to allow the electrochemical capacitor to be used as a structural component of an article of manufacture is described. The present invention also describes a method of capacitively storing electrical energy and conserving mass and/or volume in a device that includes the steps of: fabricating portions of the structure of a device with high-strength structural electrochemical capacitor that includes at least one pair of electrodes and a body of solid electrolytic material disposed between said electrodes wherein the body of solid electrolytic material accounts for a majority of the mass of a structural element or a majority of the volume of a structural element in the device. | 07-07-2011 |
20110188173 | SOLID ELECTROLYTIC CAPACITOR AND MANUFACTURING METHOD THEREOF - The invention aims at providing a solid electrolytic capacitor having a high capacitance and a small equivalent series resistance (ESR) and a method for manufacturing the same. A solid electrolytic capacitor includes: an anode | 08-04-2011 |
20110205689 | Conductive Adhesive for Use in a Solid Electrolytic Capacitor - A capacitor containing a solid electrolytic capacitor element and a conductive adhesive disposed between the capacitor element and another optional capacitor element, an electrode termination, or both, is provided. The conductive adhesive contains a plurality of spacer particles that are substantially spherical and have a relatively large diameter. The present inventors have discovered that the use of spacer particles having the desired size and shape can provide multiple benefits to the resulting capacitor. For example, the spacer particles can limit the degree to which the adhesive is compressed during manufacture, thereby ensuring that it will have the minimum thickness needed to achieve a reliable mechanical connection to the desired part. Further, when multiple capacitor elements are employed, the spacer particles can also help ensure that proper spacing is achieved between the different elements upon manufacture of the capacitor. | 08-25-2011 |
20110205690 | SOLID ELECTROLYTE CAPACITOR - An aspect of the invention provides a solid electrolyte capacitor that comprises: an anode body; a dielectric layer formed on the surface of the anode body; a first polymer film formed on the dielectric layer and containing a first polymer; a second polymer film formed on the first polymer film and containing a second polymer that is different from the first polymer; a conducting polymer layer formed on the second polymer film and containing a conducting polymer that is different from the second polymer; and a cathode layer formed on the conducting polymer layer, wherein the first polymer film has a larger work function than that of the conducting polymer layer. | 08-25-2011 |
20110211294 | METHOD OF MANUFACTURING SOLID ELECTROLYTIC CAPACITOR AND SOLID ELECTROLYTIC CAPACITOR - A method of manufacturing a solid electrolytic capacitor includes the steps of forming a dielectric film on a surface of an anode element, forming a first conductive polymer layer on the dielectric film, impregnating the anode element having the first conductive polymer layer formed with an ion liquid, and forming a second conductive polymer layer on the first conductive polymer layer after impregnation with the ion liquid. | 09-01-2011 |
20110261504 | SOLID ELECTROLYTIC CONDENSERS AND METHODS FOR PREPARING THE SAME - The present invention provides solid electrolytic condensers with increased heat resistance and decreased ESR, and methods for preparing the same. The solid electrolytic condensers of the present invention comprise a porous sintered body | 10-27-2011 |
20110286151 | METHOD FOR PRODUCTION OF SOLID ELECTROLYTE AND SOLID ELECTROLYTIC CAPACITOR - A method for producing a solid electrolyte is disclosed, which comprises the steps of applying a solution containing a five-membered heterocyclic compound as a polymerizable monomer on a substrate surface, and polymerizing the applied monomer to give a solid electrolyte comprised of an electrically conductive polymer, wherein the monomer-containing solution contains the polymerizable monomer and at least one polymerizable compound selected from a dimer of the monomer and a trimer of the monomer, at a proportion satisfying the equation: | 11-24-2011 |
20110317334 | Solid Electrolytic Capacitor for Use in High Voltage Applications - 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 present inventors have discovered a technique that is believed to substantially improve the uniformity and consistency of the manganese oxide layer. 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. This improves the quality of the resulting oxide as well as its surface coverage, and thereby enhances the electrical performance of the capacitor. | 12-29-2011 |
20110317335 | Solid Electrolytic Capacitor Containing an Improved Manganese Oxide Electrolyte - 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 has a high specific charge and in turn a relative dense packing configuration. Despite being formed from such a powder, the present inventors have discovered that a manganese precursor solution (e.g., manganese nitrate) 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. This improves the quality of the resulting oxide as well as its surface coverage, and thereby enhances the electrical performance of the capacitor. | 12-29-2011 |
20120033349 | Mechanically Robust Solid Electrolytic Capacitor Assembly - An integrated capacitor assembly that contains at least two solid electrolytic capacitor elements electrically connected to common anode and cathode terminations is provided. The capacitor elements contain an anode, a dielectric coating overlying the anode that is formed by anodic oxidation, and a conductive polymer solid electrolyte overlying the dielectric layer. The capacitor elements are spaced apart from each other a certain distance such that a resinous material can fill the space between the elements. In this manner, the present inventors believe that the resinous material can limit the expansion of the conductive polymer layer to such an extent that it does not substantially delaminate from the capacitor element. In addition to possessing mechanical stability, the capacitor assembly also possesses a combination of good electrical properties, such as low ESR, high capacitance, and a high dielectric breakdown voltage. | 02-09-2012 |
20120075773 | SOLID ELECTROLYTIC CAPACITOR - A solid electrolytic capacitor includes an anode element, a dielectric layer, a solid electrolytic layer, and a cathode layer. The dielectric layer is formed on the anode element. The solid electrolytic layer is formed on the dielectric layer. The cathode layer is formed so as to contact the solid electrolytic layer. The cathode layer is a silver paste layer having an imide-based polymer as a binder resin. A solid electrolytic capacitor that can be improved in characteristics can thus be obtained. | 03-29-2012 |
20120087063 | ELECTRODE STRUCTURE AND LITHIUM ION CAPACITOR WITH THE SAME - Provided is an anode structure of an energy storage device such as a lithium ion capacitor. The anode structure includes a current collector and an active material layer formed on the current collector, and the active material layer includes an active material, a conductive material for providing conductivity to the active material layer, and graphite surface-coated with amorphous carbon. | 04-12-2012 |
20120106031 | Solid Electrolytic Capacitor for Use in High Voltage and High Temperature Applications - A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a solid electrolytic capacitor element containing an anode body, a dielectric overlying the anode, and a solid electrolyte overlying the dielectric. To help facilitate the use of the capacitor assembly in high voltage applications, it is generally desired that the solid electrolyte is formed from a dispersion of preformed conductive polymer particles. In this manner, the electrolyte may remain generally free of high energy radicals (e.g., Fe | 05-03-2012 |
20120106032 | SUBSTRATE WITH EMBEDDED PATTERNED CAPACITANCE - A process for forming a laminate with capacitance and the laminate formed thereby. The process includes the steps of providing a substrate and laminating a conductive foil on the substrate wherein the foil has a dielectric. A conductive layer is formed on the dielectric. The conductive foil is treated to electrically isolate a region of conductive foil containing the conductive layer from additional conductive foil. A cathodic conductive couple is made between the conductive layer and a cathode trace and an anodic conductive couple is made between the conductive foil and an anode trace. | 05-03-2012 |
20120120556 | Solid Electrolytic Capacitor Element - A solid electrolytic capacitor element that is capable of withstanding laser welding without a significant deterioration in its electrical performance is provided. The capacitor element contains an anode body, dielectric, and solid electrolyte. To help shield the solid electrolyte from damage that might otherwise occur during manufacture of the capacitor, a multi-layered protective coating is employed in the present invention that overlies at least a portion of the solid electrolyte. More particularly, the protective coating includes a light reflective layer overlying the solid electrolyte and a stress dissipation layer overlying the light reflective layer. The light reflective layer can help reflect any light that inadvertently travels toward the capacitor during, for example, laser welding. This results in reduced contact of the solid electrolyte with the laser and thus minimizes defects in the electrolyte that would have otherwise been formed by carbonization. The stress dissipation layer can likewise help to dissipate stresses experienced by the capacitor (e.g., during encapsulation, reflow, etc.) so that they are not as likely to cause damage to the solid electrolyte. The stress dissipation layer can also be relatively porous in nature so that humidity trapped in the capacitor can escape and diminish the pressure that might otherwise be transferred to the solid electrolyte. | 05-17-2012 |
20120120557 | ELECTROCONDUCTIVE POLYMER COMPOSITION, METHOD FOR PRODUCING THE SAME, AND SOLID ELECTROLYTIC CAPACITOR USING ELECTROCONDUCTIVE POLYMER COMPOSITION - An exemplary embodiment of the invention provides an electroconductive polymer composition having high electroconductivity which is suitable for a solid electrolytic capacitor, and provides a solid electrolytic capacitor having low ESR as well as low leakage current (LC). In an exemplary embodiment of the invention, an electroconductive polymer composition having high electroconductivity is formed by drying an electroconductive polymer suspension solution which comprises a polyanion having a cross-linked structure, an electroconductive polymer, and a solvent. In an exemplary embodiment of the invention, a solid electrolytic capacitor having low ESR as well as low LC is obtained by using the electroconductive polymer composition for a solid electrolyte layer that is an electroconductive polymer layer. | 05-17-2012 |
20120127634 | SOLID ELECTROLYTIC CAPACITOR - The present invention provides a solid electrolytic capacitor having a low ESR, excellent heat resistance, and reliability used under a high temperature condition. On the dielectric layer of the capacitor element, 2-alkyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine monomer is subject to oxidation polymerization to provide a first conductive polymer layer. Then, 2,3-dihydro-thieno[3,4-b][1,4]dioxine or a monomer mixture of 2,3-dihydro-thieno[3,4-b][1,4]dioxine and 2-alkyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine is subject to oxidation polymerization to provide a second conductive polymer layer. The formation of the first conductive polymer layer and the second conductive polymer layer is alternatively repeated. The first conductive polymer and the second conductive polymer serve as a solid electrolyte to provide a solid electrolytic. | 05-24-2012 |
20120147528 | Conductive Coating for Use in Electrolytic Capacitors - A dispersion that contains an intrinsically conductive polythiophene formed via poly(ionic liquid)-mediated polymerization is provided. Without intending to be limited by theory, it is believed that a thiophene monomer can polymerize along the chains of a poly(ionic liquid). In this manner, the poly(ionic liquid) may act as a template for polymerization to provide a particle dispersion that is substantially homogeneous and stable. Such dispersions may be employed in an electrolytic capacitor as a solid electrolyte and/or as a conductive coating that is electrical communication with the electrolyte. Regardless, the dispersion may be more easily and cost effectively formed and incorporated into the structure of the capacitor. Moreover, due to the presence of the ionic liquid, the dispersion is conductive and does not require the addition of conventional dopants, such as polystyrene sulfonic acid. For example, the dispersion may have a specific conductivity, in the dry state, of about 1 Siemen per centimeter (“S/cm”) or more, in some embodiments about 10 S/cm or more, in some embodiments about 20 S/cm or more, and in some embodiments, from about 50 to about 500 S/cm. | 06-14-2012 |
20120147529 | Solid Electrolytic Capacitor Containing a Poly(3,4-Ethylenedioxythiophene) Quaternary Onium Salt - A solid electrolytic capacitor a solid electrolytic capacitor that includes an anode body, a dielectric overlying the anode body, and a solid electrolyte overlying the dielectric is provided. The capacitor also comprises a conductive polymer coating that overlies the solid electrolyte and includes nanoparticles formed from a poly(3,4-ethylenedioxythiophene) quaternary onium salt. | 06-14-2012 |
20120182667 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING THE SAME - A solid electrolytic capacitor includes an anode body, a dielectric coating provided on a surface of the anode body, and a first conductive polymer layer provided on the anode body. The first conductive polymer layer includes a bis(perfluoroalkanesulfonyl)imide anion and an organic solvent having a boiling point of 240° C. or higher. | 07-19-2012 |
20120307420 | Hermetically Sealed Capacitor Assembly - A capacitor assembly that includes an electrolytic capacitor that contains an anode body, dielectric overlying the anode, and a solid electrolyte overlying the dielectric is provided. An anode lead is also electrically connected to the anode body and extends therefrom. The capacitor and leadframe are enclosed and hermetically sealed within a ceramic housing in the presence of an inert gas. In this manner, the solid electrolyte (e.g., conductive polymer) is less likely to undergo a reaction in high temperature environments, thus increasing the thermal stability of the capacitor assembly. | 12-06-2012 |
20120320497 | ENERGY STORAGE DEVICES INCLUDING A SOLID MULTILAYER ELECTROLYTE - Energy storage devices that include a solid multilayer electrolyte are provided. In certain embodiments, the energy storage devices disclosed herein can exhibit behavior analogous to an electrochemical battery at lower voltages, but can transition to electrostatic capacitor behavior as voltages rise. The energy storage devices, methods, and systems disclosed herein can preferably be advantageous by providing a large total energy storage capacity. | 12-20-2012 |
20120327561 | Mechanically Robust Solid Electrolytic Capacitor Assembly - An integrated capacitor assembly that contains at least two solid electrolytic capacitor elements electrically connected to common anode and cathode terminations is provided. The capacitor elements contain an anode, a dielectric coating overlying the anode that is formed by anodic oxidation, and a conductive polymer solid electrolyte overlying the dielectric layer. The capacitor elements are spaced apart from each other a certain distance such that a resinous material can fill the space between the elements. In this manner, the present inventors believe that the resinous material can limit the expansion of the conductive polymer layer to such an extent that it does not substantially delaminate from the capacitor element. In addition to possessing mechanical stability, the capacitor assembly also possesses a combination of good electrical properties, such as low ESR, high capacitance, and a high dielectric breakdown voltage. | 12-27-2012 |
20130010403 | ELECTROLYTIC MATERIAL FORMULATION, ELECTROLYTIC MATERIAL COMPOSITION FORMED THEREFROM AND USE THEREOF - An electrolytic material formulation is provided, which comprises: (a1) a conductive compound, (b1) an oxidant and (c1) a polymerizable component. An electrolytic material composition obtained from the electrolytic material formulation through polymerization is also provided. The electrolytic material composition is applicable to a solid capacitor. Compared to a conventional liquid electrolytic capacitor, the solid electrolyte capacitor according to the present invention has advantages of long life, high voltage resistance, high capacitance, and no occurrence of capacitor rupture, and is especially applicable to electronic products that require high temperature resistance and high frequency resistance. | 01-10-2013 |
20130070392 | PROCESS FOR THE PRODUCTION OF ELECTROLYTE CAPACITORS OF HIGH NOMINAL VOLTAGE - The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current for high nominal voltages, electrolyte capacitors produced by this process and the use of such electrolyte capacitors. | 03-21-2013 |
20130100585 | ELECTROCONDUCTIVE POLYMER SUSPENSION AND METHOD FOR PRODUCING THE SAME, ELECTROCONDUCTIVE POLYMER MATERIAL, AND SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCING THE SAME - The present invention provides an electroconductive polymer suspension for providing an electroconductive polymer material with a high electroconductivity and a method for producing the same, and particularly provides a solid electrolytic capacitor with a low ESR and a method for producing the same. It includes a first step of carrying out chemical oxidative polymerization of a monomer providing an electroconductive polymer by using an oxidant in a solvent containing a first dopant including an organic acid or a salt thereof to synthesize an electroconductive polymer; a second step of purifying the electroconductive polymer; a third step of adding a second dopant, mixing an oxidant, subsequently adding a third dopant, and further mixing an oxidant in an aqueous solvent containing the purified electroconductive polymer; and a fourth step of carrying out an ion-exchange treatment to the mixture liquid obtained by the third step to obtain an electroconductive polymer suspension. | 04-25-2013 |
20130163149 | ELECTROCONDUCTIVE POLYMER COMPOSITION, ELECTROCONDUCTIVE POLYMER MATERIAL, ELECTROCONDUCTIVE SUBSTRATE, ELECTRODE AND SOLID ELECTROLYTIC CAPACITOR - Provided is an electroconductive polymer composition with a good film forming property. Also, provided is an clectroconductive polymer material with a high electroconductivity and a high transparency as well as an electroconductive substrate having the electroconductive polymer material on a substrate, and an electrode. Further, provided is an electronic device having the electrode as well as a solid electrolytic capacitor with a high capacitance and a low ESR. Disclosed is an electroconductive polymer composition, containing an electroconductive polymer in which a dopant is doped, a water-soluble polymer resin, and a solvent which contains water and an organic solvent whose dielectric constant is higher than that of water. | 06-27-2013 |
20130163150 | ELECTROCONDUCTIVE POLYMER COMPOSITION, ELECTROCONDUCTIVE POLYMER MATERIAL, ELECTROCONDUCTIVE SUBSTRATE, ELECTRODE AND SOLID ELECTROLYTIC CAPACITOR - Provided is an electroconductive polymer composition with a good film forming property and a high electroconductivity. Also, provided is an electroconductive polymer material and an electroconductive substrate with a high electroconductivity and transparency. Further, provided is a solid electrolytic capacitor with a high capacity and a low ESR. Disclosed is an electroconductive polymer composition, containing an electroconductive polymer obtained by an oxidation polymerization by using an oxidant in a reaction solution which contains at least one monomer selected from the group consisting of pyrrole, thiophene and derivatives thereof, a polyacid or a salt thereof as a dopant, and a solvent containing water and an aprotic solvent. | 06-27-2013 |
20130170102 | ELECTROLYTIC MATERIAL FORMULATION, ELECTROLYTIC MATERIAL POLYMER FORMED THEREFROM AND USE THEREOF - An electrolytic material formulation and a polymer polymerized therefrom are provided. The formulation includes:
| 07-04-2013 |
20130170103 | ELECTROLYTE MATERIAL FORMULATION, ELECTROLYTE MATERIAL COMPOSITION FORMED THEREFROM AND USE THEREOF - The present invention provides an electrolyte material formulation comprising:
| 07-04-2013 |
20130188295 | POLYMERIZATION METHOD FOR PREPARING CONDUCTIVE POLYMER - A improved process for preparing a conductive polymer dispersion is provided as is an improved method for making capacitors using the conductive polymer. The process includes providing a monomer solution and shearing the monomer solution with a rotor-stator mixing system comprising a perforated stator screen having perforations thereby forming droplets of said monomer. The droplets of monomer are then polymerized during shearing to form the conductive polymer dispersion. | 07-25-2013 |
20130229750 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCING THE SAME, AND ELECTROCONDUCTIVE POLYMER COMPOSITION - The present invention provides an electroconductive polymer composition for a solid electrolytic capacitor which has a high electroconductivity and an excellent heat resistance. Also, the present invention provides a solid electrolytic capacitor having a low ESR and an excellent heat resistance. | 09-05-2013 |
20130229751 | Ultrahigh Voltage Solid Electrolytic Capacitor - A capacitor for use in ultrahigh voltage environments is provided. During formation of the capacitor, the forming voltage employed during anodization is generally about 300 volts or more and at temperatures ranging from about 10° C. to about 70° C. Such conditions can substantially improve the quality and thickness of the dielectric without adversely impacting the uniformity and consistency of its surface coverage. In addition, the solid electrolyte is also formed from a dispersion of preformed conductive polymer particles. In this manner, the electrolyte may remain generally free of high energy radicals (e.g., Fe | 09-05-2013 |
20130294013 | CONDUCTIVE POLYMER SOLUTION, CONDUCTIVE COATING, CONDENSER AND PROCESS FOR MANUFACTURING CONDENSER - The object of the present invention is to provide a condenser that exhibits excellent conductivity of the solid electrolyte layer, and has a low ESR, a high degree of heat resistance, and a high withstand voltage. A condenser of the present invention includes an anode composed of a valve metal, a dielectric layer formed by oxidation of the surface of the anode, and a solid electrolyte layer formed on the surface of the dielectric layer, wherein the solid electrolyte layer contains a π-conjugated conductive polymer, a polyanion, and an amide compound. | 11-07-2013 |
20130314846 | ELECTROCHEMICAL CAPACITOR - An electrochemical capacitor includes electrolytic solution, a capacitor element, and a housing. The electrolytic solution contains cations, anions, solvent formed of materials other than lactones, and a lactone component. The capacitor element includes a negative electrode, a positive electrode, and a separator. The negative electrode includes an electrode layer capable of storing the cations, and the positive electrode includes a polarizable electrode layer and confronts the negative electrode. The separator is disposed between the negative and positive electrodes, and they are layered or wound together. The capacitor element is impregnated with the electrolytic solution. The housing accommodates the capacitor element and the electrolytic solution that contains the lactone component in a quantity ranging from 0.001 wt % to 5 wt % (inclusive) relative to the solvent. | 11-28-2013 |
20130342967 | METHOD FOR PREPARING CONDUCTIVE POLYMER DISPERSION, CONDUCTIVE POLYMER MATERIAL MADE THEREFROM AND SOLID ELECTROLYTIC CAPACITOR USING THE MATERIAL - The present invention provides a method for preparing a conductive polymer dispersion, including: adding a conductive compound, a polyanion, and an oxidant to a solvent; and polymerizing the conductive compound with microwaves. The present invention further provides a conductive polymer material made from the conductive polymer dispersion and a solid electrolyte capacitor using the conductive polymer material. Compared to a conventional method, the conductive polymer is prepared by the method of the present invention in a shorter time and environmental friendly. Moreover, the conductive polymer material made from the dispersion exhibits a high conductivity. | 12-26-2013 |
20140022702 | Solid Electrolytic Capacitor with Enhanced Wet-to-Dry Capacitance - A capacitor for use in relatively high voltage environments is provided. During formation, anodization may be carried out in a manner so that the dielectric layer possesses a relatively thick portion that overlies an external surface of the anode and a relatively thin portion that overlies an interior surface of the anode. In addition to employing a dielectric layer with a differential thickness, the solid electrolyte is also formed from the combination of pre-polymerized conductive polymer particles and a hydroxy-functional nonionic polymer. | 01-23-2014 |
20140022703 | Temperature Stable Solid Electrolytic Capacitor - A capacitor whose electrical properties can be stable under a variety of different conditions is provided. The solid electrolyte of the capacitor is formed from a combination of an in situ polymerized conductive polymer and a hydroxy-functional nonionic polymer. One benefit of such an in situ polymerized conductive polymer is that it does not require the use of polymeric counterions (e.g., polystyrenesulfonic anion) to compensate for charge, as with conventional particle dispersions, which tend to result in ionic polarization and instable electrical properties, particularly at the low temperatures noted above. Further, it is believed that hydroxy-functional nonionic polymers can improve the degree of contact between the polymer and the surface of the internal dielectric, which unexpectedly increases the capacitance performance and reduces ESR. | 01-23-2014 |
20140022704 | Solid Electrolytic Capacitor with Improved Performance at High Voltages - A solid electrolytic capacitor that comprises a sintered porous anode, a dielectric layer that overlies the anode body, and a solid electrolyte overlying the dielectric layer is provided. The anode is formed from a finely divided powder (e.g., nodular or angular) having a relatively high specific charge. Despite the use of such high specific charge powders, high voltages can be achieved through a combination of features relating to the formation of the anode and solid electrolyte. For example, relatively high press densities and sintering temperatures may be employed to achieve “sinter necks” between adjacent agglomerated particles that are relatively large in size, which render the dielectric layer in the vicinity of the neck less susceptible to failure at high forming voltages. | 01-23-2014 |
20140029166 | ELECTROLYTE MIXTURE FOR ELECTROLYTIC CAPACITOR, COMPOSITION FOR CONDUCTIVE POLYMER SYNTHESIS AND CONDUCTIVE POLYMER SOLID ELECTROLYTIC CAPACITOR FORMED BY USING THE SAME - An electrolyte mixture for electrolytic capacitor is disclosed. The electrolyte mixture includes a conductive polymer and a nitrogen-containing polymer. The nitrogen-containing polymer includes a cyclic nitrogen-containing polymer, a polymer with primary amine group, a polymer with secondary amine group, a polymer with tertiary amine group, a polymer with quaternary ammonium group, or a combination thereof. | 01-30-2014 |
20140036415 | CONDUCTIVE POLYMER COMPOSITE AND PREPARATION AND USE THEREOF - The invention pertains to a conductive polymer composite comprising:
| 02-06-2014 |
20140043729 | ENERGY STORAGE DEVICES WITH AT LEAST ONE POROUS POLYCRYSTALLINE SUBSTRATE - 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. | 02-13-2014 |
20140055912 | SOLID ELECTROLYTIC CAPACITOR AND MANUFACTURING METHOD THEREFOR - A solid electrolyte capacitor in which a valve-acting metal substrate with a dielectric oxide film formed on the surface of an anode body is immersed alternately in a monomer solution and an oxidant solution to form a first conductive polymer layer on the surface of the dielectric oxide film. Thereafter, the capacitor element with the first conductive polymer layer is immersed in a soluble conductive polymer solution or a conductive polymer suspension to form a second conductive polymer layer that varies little in film thickness. Then, a cathode layer is formed on the conductive polymer layer. | 02-27-2014 |
20140063691 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING THE SAME - A solid electrolytic capacitor includes an anode body, a dielectric coating formed to cover the anode body, a first solid electrolyte layer formed to cover the dielectric coating, a second solid electrolyte layer made of a conductive polymer and formed to cover a relatively thin portion of the first solid electrolyte layer, and a cathode layer formed to cover the first solid electrolyte layer and the second solid electrolyte layer. | 03-06-2014 |
20140098467 | ELECTROCONDUCTIVE POLYMER, ELECTROCONDUCTIVE POLYMER AQUEOUS SOLUTION, ELECTROCONDUCTIVE POLYMER FILM, SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCING THE SAME - 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. | 04-10-2014 |
20140168856 | ASYMMETRIC ELECTROCHEMICAL CAPACITOR POSITIVE ELECTRODE COMPOSITION AND ASYMMETRIC ELECTROCHEMICAL CAPACITOR CELLS AND DEVICES COMPRISING SAME - An asymmetric electrochemical capacitor positive electrode composition including activated carbon and an electrolyte salt which is a reaction product of an alkali metal halide and an aluminum halide is provided. Asymmetric electrochemical capacitor cells and energy storage devices comprising the asymmetric electrochemical capacitor positive electrode composition are also provided. | 06-19-2014 |
20140168857 | Method for Improving the Electrical Parameters in Capacitors Containing PEDOT/PSS as a Solid Electrolyte by Polyglycerol - The present invention relates to a capacitor comprising an electrode body ( | 06-19-2014 |
20140198428 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING SAME - A solid electrolytic capacitor in which a solid electrolytic layer is formed by applying and drying a conductive-polymer solution which contains a conductive polymer that satisfies following condition (A) and which meets following condition (B) to a dielectric layer formed by oxidizing the surface of an anode metal. | 07-17-2014 |
20140211372 | ELECTRIC CONDUCTIVE POLYMER SUSPENSION AND METHOD FOR PRODUCING THE SAME, ELECTRIC CONDUCTIVE POLYMER MATERIAL, AND ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCING THE SAME - An electric conductive polymer suspension is produced by performing chemical oxidative polymerization of a monomer for providing an electric conductive polymer by using an oxidant in a solvent containing an organic acid or a salt thereof as a dopant to form an electric conductive polymer, recovering the electric conductive polymer, allowing an oxidant to act on the electric conductive polymer in an aqueous solvent containing a polyacid, and further mixing a dispersant with a branched structure and then pulverizing the electric conductive polymer. According to the electric conductive polymer suspension, an organic material high in conductivity, and excellent in adhesiveness to a substrate and water resistance, and a method for producing the material, as well as an electrolytic capacitor and a method for producing the capacitor can be provided. | 07-31-2014 |
20140211373 | ORGANIC-INORGANIC COMPOSITE AND METHOD FOR MANUFACTURING THE SAME - The purpose of the present invention is to provide composite particulates and a method for manufacturing the composite particulates, the particulates including an organic substance and a metal having exceptional adhesiveness to a substrate, allowing easier control over metallic particle dispersion, facilitating control over electrical conductivity, and exhibiting high electroconductivity. The metallic particulates are characterized in that they have a thiol compound coordinated on the surfaces thereof, they are adsorbed onto a substrate with a silane compound interposed therebetween, and the thiol compound on the surfaces is subjected to oxidative polymerization, thereby yielding a structure in which an electroconductive polymer is coordinate-bonded to the surface of the metallic particulates. | 07-31-2014 |
20140254067 | TANTALUM CAPACITOR - Disclosed herein is a tantalum capacitor capable of improving equivalent series resistance (ESR) characteristic by increasing the bond between a tantalum wire and a tantalum powder. The tantalum capacitor according to the present invention includes: a tantalum wire; a tantalum powder having embedded a front end of the tantalum wire and then being sintered; and a rough part formed on a surface of the tantalum wire so as to strengthen a bond between the tantalum wire and the tantalum powder. | 09-11-2014 |
20140268502 | Solid Electrolytic Capacitor - A capacitor for use in relatively high voltage environments is provided. The solid electrolyte is formed from a plurality of pre-polymerized particles in the form of a dispersion. In addition, the anode is formed such that it contains at least one longitudinally extending channel is recessed therein. The channel may have a relatively high aspect ratio (length divided by width), such as about 2 or more, in some embodiments about 5 or more, in some embodiments from about 10 to about 200, in some embodiments from about 15 to about 150, in some embodiments from about 20 to about 100, and in some embodiments, from about 30 to about 60. | 09-18-2014 |
20140293512 | SOLID ELECTROLYTIC CAPACITOR - The solid electrolytic capacitor of the present invention includes an anode, a dielectric layer formed on the anode, and a solid electrolyte layer formed on the dielectric layer. The solid electrolyte layer includes an oxide of valve metal. It is beneficial that the solid electrolyte layer contains a salt of valve metal in addition to the oxide of valve metal. Furthermore, it is beneficial that the oxide of valve metal is vanadium pentoxide. | 10-02-2014 |
20140321029 | Multi-Notched Anode for Electrolytic Capacitor - A solid electrolytic capacitor that includes an anode body, a dielectric overlying the anode body, a solid electrolyte that contains one or more conductive polymers and overlies the dielectric, and an external coating that overlies the solid electrolyte, is provided. The external coating includes at least one carbonaceous layer and at least one metal layer. In addition to the aforementioned layers, the external coating can also include at least one conductive polymer layer that can be disposed between the carbonaceous and metal layers. Among other things, such a conductive polymer layer can reduce the likelihood that the carbonaceous layer will delaminate from the solid electrolyte during use. Further, the notched geometry of the anode body itself is selected to minimize the risk of delamination of the external coating layers from the anode body. This combination of characteristics can increase the mechanical robustness of the part and improve its electrical performance. | 10-30-2014 |
20140321030 | SOLID ION CAPACITOR AND METHOD FOR USING SOLID ION CAPACITOR - A solid ion capacitor having electrodes on both principal surfaces of a solid electrolyte having a thickness no greater than 200 μm. The solid electrolyte contains an ion conductive compound having a Nasicon type crystal structure, and the ion conductive compound includes at least Li, Al, P, and O. The electrodes are formed from a non-valve action material which does not have a valve action. The interface between the solid electrolyte and the electrodes has a fine uneven structure. This solid ion capacitor is used at a driving voltage of no greater than 3 V, or preferably 1.5 to 3 V. | 10-30-2014 |
20140340820 | CONDUCTIVE MATERIAL FORMULATION AND USE THEREOF - The invention pertains to a conductive material formulation comprising:
| 11-20-2014 |
20140340821 | SOLID-STATE ION CAPACITOR - The present invention provides a solid-state ion capacitor. In the solid-state ion capacitor, the particle number in the thickness direction of the solid electrolyte sandwiched between the electrodes was at least 1 and the average particle number was 80 or less. Further, the solid electrolyte includes particles with D10˜D90 in the particle diameters of particle size distribution of 0.5 μm or more and 100 μm or less. | 11-20-2014 |
20150049419 | Moisture Resistant Solid Electrolytic Capacitor Assembly - A capacitor assembly that contains a solid electrolytic capacitor element positioned within a multi-layered casing is provided. The casing contains an encapsulant layer that overlies the capacitor element and a moisture barrier layer that overlies the encapsulant layer. Through careful control of the materials employed in the casing, the present inventor has discovered that the resulting capacitor assembly can be mechanically stable while also exhibiting electrical properties in the presence of high humidity levels (e.g., relative humidity of 85%). For example, the encapsulant layer may be formed from a thermoset resin (e.g., epoxy) that is capable of providing the capacitor element with mechanical stability. The moisture barrier layer may likewise be formed from a hydrophobic material. | 02-19-2015 |
20150077903 | SOLID ELECTROLYTIC CAPACITOR - An electrically conductive polymer composition has high electrical conductivity, excellent water resistance, high density, and excellent smoothness. Also disclosed is a solid electrolyte capacitor which is prevented from the reduction in electrical conductivity, has low ESR, and also has excellent reliability. Further disclosed is a method for producing the solid electrolyte capacitor. The electrically conductive polymer composition is produced by removing a dispersion medium from an electrically conductive polymer suspension, wherein the electrically conductive polymer suspension includes: an electrically conductive polymer material including a dopant composed of a polyacid or a salt thereof and an electrically conductive polymer; at least one compound (A) selected from erythritol, xylitol and pentaerythritol; and the dispersion medium. | 03-19-2015 |
20150092319 | Solid Electrolytic Capacitor for Use Under High Temperature and Humidity Conditions - A solid electrolytic capacitor that is capable of exhibiting good electrical properties even under the extreme conditions of high temperature and humidity levels is provided. More particularly, 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. The solid electrolyte contains a conductive polymer and an organometallic coupling agent. The capacitor also contains a moisture barrier layer that overlies the solid electrolyte and is formed from a hydrophobic elastomer that has a low surface energy such that it is not readily wettable by an aqueous medium. | 04-02-2015 |
20150138695 | ORGANIC CONDUCTOR, METHOD FOR PRODUCING ORGANIC CONDUCTOR, ELECTRONIC DEVICE, AND SOLID ELECTROLYTIC CAPACITOR - The present disclosure is to provide an organic conductor having high conductivity and heat resistance. The organic conductor in accordance with the present disclosure contains a conductive polymer, a quinone compound, and a vanadyl compound. | 05-21-2015 |
20150332856 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING SAME - A solid electrolytic capacitor includes anode, dielectric layer formed on anode, and conductive polymer layer formed on dielectric layer. A surface of dielectric layer is dotted with coupling particles. Conductive polymer layer covers coupling particles and is also in contact with dielectric layer. This enables to increase a self-repair capability for reducing leak current between the anode and a cathode in the solid electrolytic capacitor having the conductive polymer layer as a solid electrolytic layer. | 11-19-2015 |
20150348715 | Capacitor with Charge Time Reducing Additives and Work Function Modifiers - A capacitor, and method for making the capacitor, is provided with improved charging characteristics. The capacitor has an anode, a cathode comprising a conductive polymer layer and a work function modifier layer adjacent the conductive polymer layer and a dielectric layer between the anode and the cathode. | 12-03-2015 |
20150364263 | Nonionic Surfactant for Use in a Solid Electrolyte of an Electrolytic Capacitor - A solid electrolytic capacitor that comprises a sintered porous anode, a dielectric layer that overlies the anode body, and a solid electrolyte overlying the dielectric layer is provided. The solid electrolyte comprises a conductive polymer and a nonionic surfactant having a hydrophilic/lipophilic balance (“HLB”) of from about 10 to about 20 and a molecular weight of from about 100 to about 10,000 grams per mole. The nonionic surfactant has a hydrophobic base and a hydrophilic chain that contains alkoxy moieties. | 12-17-2015 |
20160059319 | METHOD FOR PREPARING TANTALUM POWDER OF CAPACITOR GRADE WITH HIGH NITROGEN CONTENT, TANTALUM POWDER OF CAPACITOR GRADE PREPARED BY THE PROCESS, AND AN ANODE AND A CAPACITOR MADE OF THE TANTALUM POWDER - A method for preparing a tantalum power of capacitor grade, comprising: solid tantalum nitride is added when potassium fluotantalate is reduced by sodium. The method increases the nitrogen content in the tantalum powder, and at the same time improves the electrical performance of the tantalum powder. The specific capacitance is increased, and the leakage current and loss is improved. The qualification rate of the anode and the capacitor product is also improved. The method is characterized in that the nitrogen in the tantalum nitride diffuses between the particles of the tantalum powder, with substantially no loss, and thus the nitrogen content is accurate and controllable. | 03-03-2016 |
20160093413 | ELECTROCONDUCTIVE COMPOSITION, ELECTRICAL CONDUCTOR, LAMINATE AND METHOD FOR PRODUCING SAME, ELECTROCONDUCTIVE FILM, AND SOLID ELECTROLYTE CONDENSER - The electroconductive composition of the present invention contains an electroconductive polymer (A) having a sulfonic acid group and/or carboxylic acid group, and a basic compound (B) having two or more nitrogen atoms. The electrical conductor of the present invention consists of the electroconductive composition. In the laminate of the present invention, the electrical conductor is laminated on at least one surface of a substrate. The method for producing a laminate of the present invention includes applying the electroconductive composition to at least one surface of a substrate, heating and drying the composition, and forming an electrical conductor. The electroconductive film of the present invention is provided with the electrical conductor. The solid electrolyte condenser of the present invention is provided with a positive electrode consisting of a porous body of a valve metal, a dielectric layer formed by oxidizing the positive electrode surface, and one or more solid electrolyte layers formed on the dielectric layer surface side, and at least one of the solid electrolyte layers is formed of the electroconductive composition. | 03-31-2016 |
20160093446 | Multi-Notched Anode for Electrolytic Capacitor - A solid electrolytic capacitor that includes an anode body, a dielectric overlying the anode body, a solid electrolyte that contains one or more conductive polymers and overlies the dielectric, and an external coating that overlies the solid electrolyte, is provided. The external coating includes at least one carbonaceous layer and at least one metal layer. In addition to the aforementioned layers, the external coating can also include at least one conductive polymer layer that can be disposed between the carbonaceous and metal layers. Among other things, such a conductive polymer layer can reduce the likelihood that the carbonaceous layer will delaminate from the solid electrolyte during use. Further, the notched geometry of the anode body itself is selected to minimize the risk of delamination of the external coating layers from the anode body. This combination of characteristics can increase the mechanical robustness of the part and improve its electrical performance. | 03-31-2016 |
20160099113 | SOLID ELECTROLYTIC CAPACITOR AND MANUFACTURING METHOD THEREOF - A solid electrolytic capacitor includes: an anode foil on which an oxide film is formed; a cathode foil; and a separator between the anode and cathode foils, wherein a solid electrolyte in a fine particle form made of a conductive high molecular weight compound and a water-soluble high-molecular weight compound in a liquid form are introduced into a gap between the anode and cathode foils in a state where the water-soluble high-molecular weight compound in a liquid form surrounds the solid electrolyte, and a ratio of an area that the solid electrolyte occupies in the gap is set to a value which falls within a range of 1 vol % to 30 vol %, and a ratio of an area that the water-soluble high-molecular weight compound in a liquid form occupies in the gap is set to a value which falls within a range of 10 vol % to 99 vol %. | 04-07-2016 |
20160141115 | SOLID ION CAPACITOR - A positive electrode and a negative electrode are formed on both main surfaces of a solid electrolyte. Preferably, the solid electrolyte is a thin film body with a thickness of less than or equal to 200 μm, and contains an ion conductive compound such as Li ions. The positive electrode and the negative electrode contain an ion conductive substance, for example Li | 05-19-2016 |
20160163466 | SOLID ELECTROLYTIC CAPACITOR ELEMENT, AND METHOD FOR MANUFACTURING SOLID ELECTROLYTIC CAPACITOR AND SOLID ELECTROLYTIC CAPACITOR ELEMENT - Disclosed is a solid electrolytic capacitor element including a dielectric layer, a first conductive polymer semiconductor layer, a second conductive polymer semiconductor layer and a conductor layer, formed in that order, on a tungsten anode body having an externally protruding lead wire, and the thickness of the thickest portion of the second conductive polymer semiconductor layer on the lower surface opposite the upper surface from which the lead wire protrudes is thinner than the thickness of the thickest portion of the second conductive polymer semiconductor layer on the side surfaces, and the thickness of the second conductive polymer semiconductor layer on the lower surface is greater than 2 μm and less than 15 μm. | 06-09-2016 |
20160172117 | ELECTRICAL STORAGE DEVICE, MANUFACTURING METHOD OF THE SAME, AND SEPARATOR | 06-16-2016 |
20160379760 | Capacitor PCB Spacer - An improved capacitor comprising a housing and a wound capacitive couple in the housing wherein the wound capacitive couple comprises an anode with a dielectric thereon, a cathode, an electrolyte between the cathode and the dielectric, an anode lead in electrical contact with the anode and a cathode lead in electrical contact with the cathode. A deck is secured to the housing and encases the wound capacitive couple in the housing. An anode press fit pin is on the deck and in electrical contact with the anode lead wherein the anode press fit pin comprises an anode riser and an anode compression pin extending from the anode riser opposite the deck. A cathode press fit pin is on the deck and in electrical contact with the cathode lead wherein the cathode press fit pin comprises a cathode riser and a cathode compression pin extending from the cathode riser opposite the deck. A spacer is attached to the housing wherein the spacer comprises a central void wherein the anode press fit pin and cathode press fit pin extend through the void and wherein said spacer extends away from the deck. | 12-29-2016 |
20190148080 | ELECTROLYTIC CAPACITOR AND PRODUCTION METHOD THEREOF | 05-16-2019 |