Abstract: A solid electrolytic capacitor including: an anode containing a valve metal or its alloy; a dielectric layer provided on the surface of the anodic; a cathode provided on the surface of the dielectric layer; and an outer package resin covering the anode, the dielectric layer and the cathode, wherein a glass transition temperature (Tgb) of the outer package resin is a temperature ranging from 0.50 to 0.90 times a maximum glass transition temperature (Tga) which is a maximum value of glass transition temperatures exhibited by the outer package resin after each heat treatment at variable temperatures of every 10° C. from 50° C. to 200° C. (treatment time: 5 hours) which is performed on the outer package resin before a curing process.

Abstract: A wet electrolytic capacitor that includes a plurality of anodes, cathode, and working electrolyte that is disposed in electrical contact with the anodes and current collector is provided. Any number of anodes may generally be employed, such as from 2 to 40, in some embodiments from 3 to 30, and in some embodiments, from 4 to 20. The anodes are thin and typically have a thickness of about 1500 micrometers or less, in some embodiments about 1000 micrometers or less, and in some embodiments, from about 50 to about 500 micrometers. By employing a plurality of anodes that are relatively thin in nature, the resulting wet electrolytic capacitor is able to achieve excellent electrical properties.

Abstract: A pressure regulating valve is provided on a terminal plate of a capacitor. This pressure regulating valve includes a gas permeable sheet, a valve body made of silicone rubber, a packing, and a cap. The gas permeable sheet that prevents permeation of electrolyte is provided so as to close a hole created in a terminal plate. The packing is interposed between the valve body and the gas permeable sheet, and is made of an elastic material with moisture permeation resistance higher than that of silicone rubber. The cap is fixed onto the terminal plate and covers the valve body and the packing such that the valve body and the packing are retained in a compressed state with respect to the terminal plate. The valve body and the packing are provided away from the gas permeable sheet.

Abstract: An aluminum plate having an aluminum purity of not less than 99.98% by mass and an Fe content of 5 to 50 ppm with the balance consisting of unavoidable impurities is used to realize increased capacitance of an aluminum electrolytic capacitor, reduced height, and improved high frequency characteristics. In this aluminum plate, the total content of Fe in crystal/precipitate is 1 to 50% based on the original content, and the thickness of the aluminum plate 0.2 to 1 mm. In the formation of a capacitor anode, the aluminum plate is subjected to alternate current etching so as to leave a core part having an average thickness of 50 to 150 ?m in the center part in the thickness-wise direction to increase the surface area, followed by anodic oxidation.

Abstract: A chip-type filter has a laminated body formed by stacking a plurality of capacitor elements, a pair of positive electrode terminals, a pair of negative electrode terminals, insulating outer resin, and an inductor section. The laminated body includes capacitor elements in a first group and capacitor elements in a second group, the positive electrode sections in both groups are disposed on the opposite sides with respect to the negative electrode sections. Positive electrode terminals are electrically connected to the positive electrode sections of capacitor elements in the first group and those of capacitor elements in the second group, respectively. Negative electrode terminals are electrically connected to the negative electrode sections in the laminated body, and are disposed at both ends of the direction crossing the connecting direction between the positive electrode terminals. The inductor section is insulated from the negative electrode sections and couples the positive electrode terminals.

Abstract: The present invention relates to a resin-molded chip solid electrolyte capacitor comprising a plurality of solid electrolyte capacitor elements horizontally laid in parallel with no gap on a pair of oppositely disposed end parts of a lead frame, and a fixing layer which is extending across the plurality of capacitor elements and fixing the capacitor elements with each other; and having low equivalent series resistance (ESR) and low leakage current (LC value), a production method of the same and an electronic device using the capacitor.

Abstract: A conductive polymer having high conductivity and a solid electrolytic capacitor having low ESR are provided. A conductive polymer is synthesized using as a monomer a compound of a dimer to a decamer in which 3-alkyl five-membered heterocyclic rings are bonded at positions 2 and 5, being sterically controlled. Further, this conductive polymer is used as the solid electrolyte of a solid electrolytic capacitor.

Abstract: A sealed electrode enclosed in separator material is provided for use in a capacitor cell. The separator may either be adhered to the electrode in sheets, or may be formed into a pouch, which is used to enclose the electrode. A method of preparing the electrode sealed with separator is described in which an adhesive is used to secure the pouch to the electrode before sealing it. The prefabricated electrode and separator combination may be used in both coiled capacitor cells and flat capacitor cells that are often used in implantable medical devices. Electrodes prepared in this fashion can be efficiently and reliably aligned within the case of a capacitor cell, and have no exposed electrode surfaces that could lead to short-circuiting within the cell.

Abstract: An electronic component has a casing. An electrically-conductive body enclosed in the casing. The inner end of a lead is welded to the electrically-conductive body. The outer end of the lead projects outward out of the casing through a through hole formed in the casing. An enlarged portion is formed in the lead at a position between the inner end and the outer end. The enlarged portion is set in the through hole to close the through hole. Even if whiskers are generated at a position between the electrically-conductive body and the lead based on stress generated during a welding process, the whiskers are received on the enlarged portion in the through hole. No whisker falls out of the casing through the through hole.

Abstract: A method is described for applying a double sealing system to an electro-technical device and an electro-technical device with a double seal. Said Electro-technical device has; a container (5) housing a functional unit (2) and including one aperture (52) provided with a cover (6), wherein said cover has a first face (61) abutting an annular surface (520) which borders said aperture (52); a first sealing joint (7) accommodated in a first groove (64) provided in the first face (61) of the annular surface (520), a second groove (65) provided on said first face (61) of the annular surface (520), and surrounding the first groove (64), said second groove (65) having a closed concavity not directly accessible from the exterior of the electro-technical device (1) when the cover is applied to the annular surface (520).

Abstract: An improved conductive adhesive and capacitor formed using the improved conductive adhesive. The conductive adhesive has: 60-95 wt % conductor; 5-40 wt % resin; wherein the resin has: 55-98.9 wt % monomer defined by the formula: wherein: R is an aliphatic group of 1 to 10 carbons; R1 is an aliphatic group of 1 to 10 carbons; R2 is an alkyl, alkyl ether, aryl ether, silane or silicone; and wherein R and R1, R and R2 or R1 and R2 may be taken together to form a cyclic alkyl or aryl group; 0.1-15 wt % catalyst; 1-30 wt % accelerant defined by the formula: wherein R3 is an alkyl or substituted alkyl of 1-10 carbons; and R4 is an alkyl or substituted alkyl of 1-10 carbons with the proviso that at least one of R3 and R4 is substituted with a OR5 wherein R5 is selected from hydrogen, alkyl and aryl; and 0-15 wt % filler.

Abstract: In a lead frame for use in fabricating a face-down terminal solid electrolytic capacitor having a capacitor element an anode terminal, and a cathode terminal, a frame body has a connecting portion for being connected to the capacitor element. The connecting portion extends from a cathode terminal forming portion in a first direction to a position near an anode terminal forming portion. The anode terminal forming portion is connected to the frame body and used for forming the anode terminal. The cathode terminal forming portion is connected to the frame body and used for forming the cathode terminal. The anode terminal forming and the cathode terminal forming portions are spaced to each other in the first direction on a principal surface of the frame body.

Abstract: According the present invention, anode foils are encapsulated in separator material so as to insulate them from the metal housing of an electrolytic capacitor. The present invention also provides for enclosed capacitor configurations for use in stacked capacitor configurations. Preferably, heat-sealable polymeric materials are used as separator materials to encapsulate or enclose the anode assemblies and capacitor configurations. The encapsulated anode assemblies and capacitor configurations of the present invention may be used in implantable cardioverter defibrillators.

Abstract: The invention provides a solid electrolytic capacitor wherein the anode has a dielectric oxide film of a structure less susceptible to damage due to mechanical stresses and which is diminished in leakage current and less prone to short-circuiting, and a process for fabricating the capacitor. The capacitor of the invention comprises an anode of aluminum having a dielectric oxide film formed over a surface thereof from amorphous alumina, and is characterized in that a plurality of tunnel-shaped etching pits are formed in the anode.

Abstract: A solid electrolytic capacitor is provided which is capable of exhibiting an excellent characteristic and high reliability against thermal stress. The solid electrolytic capacitor includes a base member having a capacitor element connecting face on its upper surface side and an electrode mounting face on its lower surface side and being made up of an insulating plate having first conductors and second conductors, disposed in a staggered format, each providing conduction between the upper and lower surface sides of the base member, and the capacitor element having anode portions and cathode portions, each being disposed in a staggered format, connected to each of the first and second conductors.

Abstract: An electronic apparatus has an electric load, an electrochemical capacitor, and an applying section. The electric capacitor includes a positive electrode, a negative electrode and an electrolyte placed between the positive electrode and the negative electrode and supplies electric power to the electric load. The applying section opens an electrical connection between the electrochemical capacitor and the electric load, and applies a minus potential to the positive electrode and a plus potential to the negative electrode.

Abstract: A solid electrolytic capacitor with face-down terminals includes a capacitor element having an anode lead drawn out therefrom in an offset manner, an anode terminal, a cathode terminal, and an insulating casing resin. At a rectangular mount surface having a first and a second side parallel to each other and forming an outer bottom portion, four terminal exposed portions are provided such that a terminal pair composed of the two terminal exposed portions are located at the first side and a terminal pair composed of the other two terminal exposed portions are located at the second side. The two terminal exposed portions located at the first side serve as mount-surface exposed portions of the anode terminal and the cathode terminal, while, the two terminal exposed portions located at the second side serve as dummy terminals that are not electrically connected to the capacitor element.

Abstract: A multilayer polymer film capacitor block, adapted to accept high currents. At least one multilayer polymer film capacitor is fit into a cavity defined in a rigid, thermally conductive structure. The cavity is sized and shaped to receive said multilayer polymer film capacitor when said capacitor is at a temperature below 40° C., but fitting said capacitor in a conformal manner so that as said capacitor is raised to temperatures above 40° C., said cavity constrains expansion of said capacitor.

Abstract: A wet electrolytic capacitor that includes an anode, cathode, and an electrolyte is provided. The cathode contains a substrate and a coating overlying the substrate. The coating comprises a sintered body containing carbonaceous particles (e.g., activated carbon) and inorganic particles (e.g., NbO2).

Abstract: Dry process based energy storage device structures and methods for using a dry adhesive therein are disclosed.

Abstract: A solid electrolytic capacitor body is attached to lead frame by a secondary adhesive and a method for forming the capacitor assembly. The assembly consists of a chip that has conductive adhesive formed on the cathode surface. Secondary adhesive is placed adjacent to the conductive adhesive. Lead frame is attached to these adhesives and the adhesives are cured simultaneously. Secondary adhesive can be thermally or UV cured. The solid electrolytic capacitor formed by this method showed improved adhesion between lead frame and capacitor body.

Abstract: 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.

Abstract: A capacitor element comprises an anode, a dielectric layer formed on the anode, an electrolyte layer formed on the dielectric layer, and a cathode formed on the electrolyte layer. On the cathode formed by the surface of the capacitor element, a conductive adhesive layer containing silver particles and an organic silane layer made from aminopropyltriethoxysilane (APTES) are sequentially formed, and the cathode and a cathode terminal are connected through the conductive adhesive layer and the organic silane layer. In addition, an anode terminal is connected to an anode lead which exposed from the anode by welding.

Abstract: A capacitor including a flexible case and method for manufacturing the same are provided. The capacitor includes an electrode assembly encased in a sealed flexible case. The electrode assembly includes an anode formed from a high surface area valve metal and a cathode operatively positioned relative to the anode. The flexible case may conform to an exterior contour of the electrode assembly.

Abstract: A storage device, which has a simple structure and a low connection resistance and is robust, and which is ease to mount is provided. In the storage device, an L-shaped aluminum busbar 157 protrudes from the center of the top of a sealing plate 41 to the right. The busbar 157 has a barrel portion 157a and a projecting part 157b horizontally protruding from the top end of the barrel portion 157a. A terminal hole 159 is made in an end of the projecting part 157b, so that the positive electrode of another unitary cell to be connected in series can be connected. The barrel portion 157a of the busbar 157 is welded to the sealing plate 41, and the length of the projecting part 257b is minimized. Accordingly, the device is robust and has a low resistance, and consequently can deal with a large current.

Abstract: An insulative feedthrough receives an electrical lead therethrough and includes a ferrule having first and second open ends and an interior surface. At least one polymeric guide member is positioned substantially within the first end of the ferrule and has an aperture therethrough for receiving the lead. An insulating material is deposited in the ferrule through the second end for sealingly engaging the lead and the interior surface of the ferrule.

Abstract: A capacitor is provided to overcome the following problem: when plural capacitors are linked, a large coupling space is required because an anode and a cathode are brought out through the opposite ends, so that downsizing of the capacitor is difficult. The capacitor also allows easy electrical and mechanical coupling, reducing the required coupling space and unnecessary resistance. According to a structure of the capacitor, capacitor element (2) is enclosed in mechanical housing (3) having an opening sealed by terminal plate (4). Terminal slip (5), which includes rib (5b) to be coupled to one of the anode and the cathode of capacitor element (2) and terminal (5a), is insert-molded into terminal plate (4). The other of the anode and the cathode is coupled to an inner bottom face of metal housing (3). The one of the anode and the cathode is brought out through terminal (5a), and the other of the anode and the cathode is brought out through metal housing (3), thus a lower resistance is expected.

Abstract: A chip-type aluminum electrolytic capacitor is provided that allows a lead wire exposed from an insulated terminal plate to have an increased temperature sooner than the other parts to provide highly-reliable soldering in a relatively-easy reflow atmosphere environment and that has a superior vibration resistance. The capacitor includes an insulated terminal plate (3) that includes, at the outer surface thereof, an insertion hole (2a) to which a pair of lead wires (2) introduced from a sealing member of a capacitor body are inserted and a first concave groove (2a) for storing lead wires (2) inserted to the hole while lead wires (2) being bent in an orthogonal direction. Insulated terminal plate (3) is attached to the capacitor so as to be abutted with the above sealing member. Metal electrode (4) is buried in an inner face of first concave groove (2a) provided in insulated terminal plate (3) and the periphery thereof.

Abstract: A surface-mounting thin type capacitor includes a capacitor element having a shape of and two end portions which form a side surface of the capacitor element. Two anode terminals are disposed on lower surfaces of the end portions along the side surface to form a mounting surface substantially perpendicular to the side surface. A cathode terminal is disposed at a middle part of the capacitor element to form the mounting surface together with the anode terminals. The cathode terminal is not between the anode terminals spatially and thereby manufacturing process of the capacitor is simplified and it is easy to change the intended use of the capacitor.

Abstract: Electrolyte solution and an electrolytic capacitor using it having a low impedance characteristic, having a high withstand voltage characteristic of 100V class, and a high temperature life characteristic is provided. The electrolyte solution containing an aluminum tetrafluoride salt, and a solvent with high boiling point, such as sulfolane, 3-methyl sulfolane, and 2,4-dimethyl sulfolane, and the like are used. The electrolytic capacitor of the present invention has a low impedance characteristic, a high withstand voltage characteristic, and an excellent high temperature life characteristic.

Abstract: The invention relates to a process for producing a solid electrolytic capacitor element, comprising forming a semiconductor layer containing a conductive polymer on a conductor having a dielectric layer on its surface. By using the solid electrolytic capacitor element of the invention prepared by forming a semiconductor layer on the conductor having a dielectric layer on its surface by an electrification method after the conductor is impregnated with a dopant, a solid electrolytic capacitor having a favorable ESR value can be fabricated.

Abstract: The invention relates to a process for the production of electrolytic capacitors with low equivalent series resistance and low residual current consisting of a solid electrolyte made of conductive polymers and an outer layer containing conductive polymers, to electrolytic capacitors produced by this process and to the use of such electrolytic capacitors.

Abstract: A display member, particularly a plasma display member, can be produced by a process including applying a paste which includes a urethane compound and inorganic fine particles onto a substrate and then firing the paste. The display member has a post-firing pattern without any defect.

Abstract: Disclosed is an aluminum electrolytic capacitor, which comprises a capacitor element prepared by rolling an anode foil and a cathode foil together with a separator and impregnating them with a driving electrolyte, an anode lead electrically connected to the anode foil, a cathode lead electrically connected to the cathode foil, a tubular metal case having one closed end and the other open end and containing the capacitor element, and a sealing member hermetically closing the open end, wherein the anode and cathode leads are bent along an outer surface of the sealing member. In this aluminum electrolytic capacitor, the sealing member is comprised of a rubber composition containing a rubber component having, as a constituent, a butyl rubber prepared by crosslinking an isobutylene-isoprene copolymer having an unsaturation degree of 1.2 to 2.5 mol %, with an alkyl-phenol-formaldehyde resin, and 100 to 200 mass parts of reinforcing filler with respect to 100 mass parts of the rubber component.

Abstract: A solid electrolytic capacitor having a capacitor element which includes an anode foil and a cathode foil rolled with a separator interposed therebetween, and a solid electrolyte layer or an electrically conductive polymer layer provided therein. The anode foil is coated with a dielectric oxide film. The dielectric oxide film is an oxide film formed by oxidizing a film of a mono-metal nitride or a composite metal nitride formed on the anode foil. The mono-metal nitride is titanium nitride, zirconium nitride, tantalum nitride or niobium nitride. The composite metal nitride is aluminum titanium nitride, chromium titanium nitride, zirconium titanium nitride or titanium carbonitride.

Abstract: Provided are a foil for a cathode of a capacitor, which can secure both a high capacitance and a high strength, and a manufacturing method thereof. The foil for a cathode of a capacitor includes an aluminum foil and a carbon-containing layer formed on a surface of the aluminum foil. An interposition layer containing aluminum and carbon is formed between the aluminum foil and the carbon-containing layer. The manufacturing method of a foil for a cathode of a capacitor includes a step of arranging an aluminum foil in a space containing a hydrocarbon-containing substance and a step of heating the aluminum foil.

Abstract: A capacitor includes a hollow capacitor element formed by rolling a pair of flat sheet-like electrodes and, with separators interposed therebetween, a bottom-closed metallic casing receiving the capacitor element and a drive electrolyte therein, and an opening-sealing plate sealing an opening portion of the metallic casing, the opening-sealing plate having an external connection terminal. A rubber-like elastic member is provided on a surface of the opening-sealing plate at a peripheral edge portion thereof, and an electrically-insulating layer is formed on the metallic casing to cover at least a region extending from the open end of the metallic casing to a recess provided for fixing the opening-sealing plate, and the rubber-like elastic member is pressed by the open end portion of the metallic casing.

Abstract: A flat capacitor includes a case having a feedthrough hole, a capacitor stack located within the case, a coupling member having a base surface directly attached to the capacitor stack and having a portion extending through the feedthrough hole, the coupling member having a mounting hole, a feedthrough conductor having a portion mounted within the mounting hole, and a sealing member adjacent the feedthrough hole and the feedthrough conductor for sealing the feedthrough hole. Other aspects of the invention include various implantable medical devices, such as pacemakers, defibrillators, and cardioverters, incorporating one or more features of the exemplary feedthrough assembly.

Abstract: A solid electrolytic capacitor includes a flat-shaped anode terminal having a first surface connected to an anode portion of a capacitor element and having a second surface opposite to the first surface, a flat-shaped cathode terminal having a first surface connected to a cathode layer of the capacitor element and having a second surface opposite to the first surface thereof, and an insulating resin package accommodating the capacitor element, the anode terminal, and the cathode terminal. The second surface of the cathode terminal is flush with the second surface of the anode terminal. The second surface of the anode terminal and the second surface of the cathode terminal expose to an outside of the resin package. The anode terminal includes a first thick portion and a first thin portion thinner than the first thick portion. The first thick portion has the second surface of the anode terminal and a portion of the first surface of the anode terminal.

Abstract: A solid electrolytic capacitor includes a capacitor element, an anode lead terminal, a cathode lead terminal and a resin package. The capacitor element includes an anode chip body, an anode bar projecting from the anode chip body, and a cathode film provided on a periphery of the anode chip body. Each of the lead terminals is embedded in a bottom portion of the package so that the lower surface of the lead terminal is exposed at a lower surface of the package. A stud resistance-welded to the anode bar of the capacitor element is fixed to the anode lead terminal. A welding support is provided at both an upper portion of the stud which is closer to the anode chip body and an upper portion of the stud which is farther from the anode chip body. The welding support comes into contact with the anode bar in resistance-welding the anode bar to the stud.

Abstract: An improved capacitor with an anode with an anode wire and an oxide layer on the surface of the anode. A cathode layer is exterior to the oxide layer. A carbon conductive layer is exterior to the cathode layer wherein the cathode layer comprises 5-75 wt % resin and 25-95 wt % conductor. The conductor has carbon nanotubes. An anode lead is in electrical contact with the anode wire and a cathode lead is in electrical contact with the carbon conductive layer.

Abstract: An insulative feedthrough receives an electrical lead therethrough and includes a ferrule having fist and second open ends and an interior surface. At least one polymeric guide member is positioned substantially within the first end of the ferrule and has an aperture therethrough for receiving the lead. An insulating material is deposited in the ferrule through the second end for sealingly engaging the lead and the interior surface of the ferrule.

Abstract: A solid electrolytic capacitor includes a plurality of laminated capacitor elements; an anode terminal connected to an anode portion where anode exposed portions of the capacitor elements are connected together; and a cathode terminal connected to a cathode portion where cathode layers of the capacitor elements are bonded together. Between lamination planes of the cathode layers of the capacitor elements, a conductive sheet is disposed. The capacitor elements are coated with a packaging resin layer in such a manner that a part of the anode terminal and a part of the cathode terminal are exposed.

Abstract: A capacitor comprising an aluminum anode and a dielectric layer comprising phosphate doped aluminum oxide and process for making the capacitor. Furthermore, the capacitor is formed by the process of: forming an aluminum plate; pre-hydrating the aluminum; contacting the plate with an anodizing solution comprising glycerine, 0.1 to 1.0%, by weight, water and 0.01 to 0.5%, by weight, orthophosphate; applying a voltage to the aluminum plate and determining an initial current; maintaining the first voltage until a first measured current is no more than 50% of the initial current; increasing the voltage and redetermining the initial current; maintaining the increased voltage until a second measured current is no more than 50% of the redetermined initial current, and continuing the increasing of the voltage and maintaining the increased voltage until a final voltage is achieved.

Abstract: A solid electrolytic capacitor is provided, which can reduce impedance, particularly, the ESL and the ESR. In one embodiment, such a solid electrolytic capacitor comprises a foil-like valve metal substrate formed with an insulating oxide film on the surface thereof, a valve metal body whose one end portion region is bonded to one of two opposite end portion regions of the foil-like valve metal substrate, a conductive metal substrate whose one end portion region is bonded to the other end portion region of the foil-like valve metal substrate, a cathode electrode formed by sequentially laminating at least a solid high molecular polymer electrolyte layer and a conductive layer on the surface of the foil-like valve metal substrate, and a cathode lead electrode being drawn out from the cathode electrode in a direction perpendicular to one major surface of the foil-like valve metal substrate.

Abstract: A capacitor includes an anode body and a housing having a base surface. The housing encloses the anode body at least partially. The capacitor also includes an anode connector and an anode contact that extends outward from an interior of the anode body. The anode contact has a flat side. The anode connector includes a surface containing a soft-solderable material, and a segment running along the base surface of the housing that forms a soldering surface.

Abstract: A high-voltage electrochemical-electrolytic capacitor. The capacitor includes a cathode comprising a plurality of electrically-conductive particles in intimate electrical contact with one another and disposed in a proton-conductive, electrically-non-conductive, solid ionomer matrix. The capacitor also includes an anode comprising a plurality of electrically-conductive particles in intimate electrical contact with one another and disposed in a proton-conductive, electrically-non-conductive solid ionomer matrix, the electrically-conductive particles of the anode differing in composition from the electrically-conductive particles of said cathode. The capacitor further includes a proton-conducting dielectric positioned between and in contact with each of the cathode and the anode, the proton-conducting dielectric comprising a solid ionomer.

Abstract: A solid electrolytic capacitor includes: a dielectric oxide film 2; a solid electrolyte 3 composed of a conductive polymer; a carbon layer 4; and a silver layer 5; formed sequentially on a surface of an anode 1 composed of a valve metal. The capacitor has excellent leakage current characteristics and electrical characteristics under hot and humid conditions due to doped naphthalenesulfonic acid compounds in the conductive polymer.

Abstract: A wound, metallized dielectric film capacitor for pulsed power applications is disclosed. The capacitor forms a wound metallized polymer film in the shape of a closed path ring. The electrical load is placed within the inner opening of the capacitor. The capacitor has low inductance and resistance, scales to high energy levels, and can be formed around the electrical load.

Abstract: An electric double layer capacitor has a pair of current collectors, a positive polarizable electrode which is provided on one of the pair of current collectors, includes activated carbon of a weight W+ and has a capacitance C+, a negative polarizable electrode which is provided on the other of the pair of current collectors, includes activated carbon of a weight W? and has a capacitance C?, a separator interposed between the positive and negative polarizable electrodes, and an organic electrolytic solution which impregnates at least the positive and negative polarizable electrodes and the separator, wherein C?/C+=0.6 to 1.0 and W?/W+=1.1 to 2.0. Even when continuously charged at a high applied voltage, the electric double layer capacitor has a high retention of capacitance and a low rise in internal resistance, and thus has an excellent durability.