Abstract: A solid electrolytic capacitor is provided which includes a capacitor element having an anode and a cathode, a sheet member for mounting the capacitor element, and a protection package formed on the sheet member to enclose the capacitor element. The sheet member is provided with an anode terminal and a cathode terminal which are connected to the anode and the cathode, respectively.

Abstract: An electric double layer capacitor, including at least one basic cell, an electrode plate, and an outer package which covers the basic cell and the electrode plate in a decompression state. The basic cell may be laminated in its thickness direction to form a layered cell and includes a separator, a pair of polarized electrodes disposed so as to sandwich the separator, a pair of collectors disposed so as to sandwich the polarized electrodes, and a gasket disposed between the pair of collectors so as to surround the pair of polarized electrodes. The electrode plate body is attached to each of the collectors located at the outermost side in a laminated direction of the layered cell. A sealing material having a higher gas barrier property than the collectors is disposed so as to seal an interface between the collectors and the electrode plate in the outer package.

Abstract: A sealed capacitor, which may be hermetic, having a generally flat, planar geometry, is described. The capacitor includes at least one electrode provided by a metallic substrate having a capacitive material contacted thereto. The coated substrate can provide at least one of the casing side walls itself or, be connected to the side wall. A most preferred form of the capacitor has the conductive substrate provided with the capacitive material formed from an ultrasonically generated aerosol.

Abstract: A process for producing an electrochemical capacitor including an organic electrolytic solution and electrode bodies immersed in the organic electrolytic solution, each comprising a polarizing electrode (composed mainly of a carbon material containing a partially oxidized, graphite-like microcrystalline carbon), a separator and a collector, in which capacitor each polarizing electrode gives rise to volume expansion when charged and volume contraction when discharged, is provided.

Abstract: A capacitor of the present invention includes a hollow capacitor element prepared by winding a pair of flat electrodes with a separator sandwiched in-between in such a way that both ends of each respective electrode protrude in a direction opposite to each other, an electrode connecting member connected to each respective end surface of the electrode of the above, by metal plasma-spraying, welding, soldering and adhesion using a conductive adhesive, and a terminal for external connection is connected to the electrode connecting member. A cylindrical metal case contains the capacitor element together with a driving electrolyte and a sealing plate closing the opening of the metal case. A reduction in resistance of electrodes is made possible and, in addition, the capacitor can be made smaller in size and the number of the components can be decreased.

Abstract: An electrolytic capacitor utilizing a cannister with an indentation for compressing a silicone potting compound to supply pressure on a capacitor cartridge is described. The indentation includes a bead that extends around an outer surface of the cannister.

Abstract: Single element and/or multiple element valve-metal, solid-electrolyte, surface-mount capacitors are manufactured using one or more materials taken from the following three categories of materials: graphitic carbon, highly-conductive metal-powder-filled paint, and metallic terminals. The resulting capacitors have lower equivalent series resistance (ESR) at 100 kHz than do similar capacitors manufactured with conventional materials and with conventional techniques. Moreover, not only do these devices possess lower “as-manufactured” ESR, but also their ESR is substantially more stable (less increase in ESR) when these devices are exposed to IR reflow temperatures, high humidity, thermal shock, 1000 hours at 150° C., and 1000 hours at 175° C.

Abstract: A capacitor integrated with connector having a capacitor element 11 from which at least two lead wires extend, a terminal board 10 having at least two connectors 13 and at least two connecting terminals 14, 15 electrically connected to each connector 13, respectively. A groove narrower than a lead wire 16 is formed in each of connecting terminals 14, 15, and a lead wire 16 is trapped in the groove. The capacitor integrating connector can be assembled with ease regardless of a shape of mounting board 4, and can substantially improve assembly efficiency and achieve lead-free connection.

Abstract: A capacitor includes a capacitor body containing capacitive conductive plates. The capacitor body has a first end and a second opposing end, such as the opposite ends of a cylindrical body. A conductive shell is disposed around the capacitor body. The conductive shell has a first end conductively connected to a first one of the conductive plates at the first end of the capacitor body. The conductive shell also has flexible conductive members disposed at a second end adjacent to the second end of the capacitor body. The flexible conductive members extend away from the capacitor body so as to be brought into conductive contact with a conductive surface against which the capacitor is to be mounted in use, such as an upper layer of a multi-layer bus. One capacitor mounting arrangement uses the above capacitor with a multi-layer DC bus structure. In another mounting arrangement, a resilient conductive gasket is disposed between the hard edge of a capacitor shell and a surface of a bus structure.

Abstract: An electrical component is installed in a metallic housing having a planar housing floor, in which the housing is pressed against a heat dissipation plate by means of screwable tension elements that are situated adjacent the housing wall. The tension elements have peaks at a portion that faces the housing wall. The housing has an indentation in the clamping region of the tension elements which serves as an aid to assembly, and the center line of the indentation is arranged higher prior to the fixing of the housing by means of the peak of the tension elements than subsequent thereto.

Abstract: A power capacitor has at least one capacitor unit, each capacitor unit formed of at least one winding, having at least two foils of insulating material, wherein the capacitor unit(s) is (are) housed in a casing of which at least the body is made of extruded aluminum, which body surrounds said capacitor unit(s).

Abstract: A capacitor holder for mounting capacitors used in electronics assemblies into a fixture, as well as mounting other types of components in other panels. The capacitor holder includes a support for receiving the capacitor and a cover for covering the capacitor. The cover and the support are attached to each other without the use of separable fasteners. Typically, snap-fit tabs depending from the cover are used to attach the cover to the support with a capacitor there between to form an assembly. The assembly is mounted into a fixture panel without the use of separable fasteners. In another typically embodiment, the mounting members are push-in and twist or push-in and snap-fit members integral with the cover. Thus, the capacitor is mounted within a fixture without separable fasteners. A method of aligning the capacitor within the panel is also disclosed.

Abstract: The tantalum chip capacitor of the present invention includes a anode terminal which is substantially flat. The tantalum wire which extends from the tantalum pellet through the insulating material terminates substantially flush with the insulating material, allowing the termination materials to be applied over a substantially flat surface. The tantalum chip capacitors of the present invention are created by methods which include the step of grinding the anode end of the capacitor so that the tantalum wire is flush with the insulating material. Conductive materials can then be applied to the anode end of the capacitor creating a substantially flat anode terminal.

Abstract: A solid electrolyte capacitor having a solid electrolyte layer that is formed of a polymeric product layer of a polymerizable monomer. The polymeric product layer is doped with an organic sulfonic acid selected from the group consisting of an aromatic polysulfonic acid, an organic sulfonic acid having a hydroxy group, an organic sulfonic acid having a carboxyl group, an alicyclic sulfonic acid, and a benzoquinone sulfonic acid.

Abstract: An electrochemical device of the present invention includes: a main body formed by rolling up an anode foil, a cathode foil and a separator disposed therebetween, each of the anode foil and the cathode foil having a lead wire connected thereto, wherein the main body is impregnated with an electrolytic solution; a tubular case having a bottom surface for accommodating the main body; and a seal for sealing an opening of the tubular case, which includes a through hole for the lead wire to pass therethrough. The electrolytic solution contains about 5 to about 100 parts by weight of a quaternary salt of a compound having an alkyl-substituted amidine group as an electrolyte with respect to 100 parts by weight of an organic solvent containing at least one of &ggr;-butyrolactone and propylene carbonate. The seal is an elastic body containing a butyl rubber polymer which is a copolymer of isobutylene and isoprene, and an alkylphenol formalin resin as a vulcanizing agent.

Abstract: The object of the invention is to provide a process for producing an organic solid electrolyte capacitor which is diminished in leakage current, and an apparatus for use in practicing the process. The process includes the steps of completing a capacitor element by forming a dielectric oxide film over an anode body of valve metal and subsequently forming a cathode layer of solid conductive organic material over the oxide film, subjecting the capacitor element to an aging treatment, and forming a shell around the capacitor element.

Abstract: The invention includes an electrolyte solution, a capacitor element impregnating the electrolyte solution, a case containing the capacitor element, a sealing member sealing the opening of the case, and lead wires coming out from the capacitor element and projecting outside by penetrating through the sealing member. The electrolyte solution contains a salt of carboxylic acid of quaternary matter of a compound containing N, N, N'-substitute amidine group and electrolyte. The electrolyte solution has .gamma.-butyrolactone as solvent, and the electrolyte is dissolved in the solvent. The elastic polymer has a crosslinking elastic polymer material. The sealing member has a molded form formed by crosslinking a mixture containing the crosslinking polymer material, magnesium oxide and crosslinking agent. According to this invention, even in severe conditions of such as an atmosphere of high temperature and high humidity, leakage of electrolyte solution can be prevented.

Abstract: An implantable medical device such as a defibrillator is described. The device includes an hermetically sealed housing containing a flat electrolytic capacitor and an energy source such as a battery. The battery is connected to the capacitor and provides charge thereto. The capacitor stores the charge at a relatively high voltage. The charge stored in the capacitor is discharged through a defibrillation lead to a site on or in the heart when fibrillation of the heart is detected by the implantable medical device. Methods of making and using the implantable medical device, the capacitor, and their various components are disclosed.

Abstract: A capacitor structure including a housing and two copper plates disposed on two sides of an interior of the housing. A capacitor element is installed in the housing. The opposite inner sides of each copper plate are disposed with multiple longitudinally arranged small resilient plates which inward extend to engage with the capacitor element in the housing. An outer side of each copper plate is disposed with an upper and a lower engaging plates which are longitudinally inclinedly arranged. The upper and lower engaging plates serve to engage with or attach to a conductive wire inserted into the housing. The upper and lower engaging plates of the copper plate can at the same time contact with the conductive wire so that it can enhance the electricity conduction effect. The capacitor structure enables a user to replace the capacitor element and copper plates by himself.

Abstract: Two elements of chip type solid electrolytic capacitors, having substantially the same bottom size and shaped into rectangles and are arranged on a stack corresponding terminals of the two elements are welded using a coupling member. Because of the stacked relation of the capacitors, the capacitance can be enhanced without increasing the mounting space therefor.

Abstract: An anode foil, a cathode foil and a separator therebetween are rolled up into a capacitor element, and driving electrolyte is impregnated into the capacitor element. The capacitor element is housed in a metal case 12, and its opening is sealed by a sealer 13. The metal case 12 is made of an alloy of aluminum and manganese. Since this alloy has the higher hardness than that of a conventional case, the case is hard to be deformed even the capacitor is left in a high temperature atmosphere.

Abstract: A chip type aluminum electrolytic capacitor (1) has a capacitor element (2) impregnated with an electrolytic solution, a cylindrical case (3) for containing the capacitor element (2), a sealing member (4) for sealing the cylindrical case (3), and an insulating board (5) having a mounting surface (5c) to be fixed to an electronic circuit board; and vapor pressure of the electrolytic solution is regulated to a predetermined value to prevent deformations of the cylindrical case (3) and the sealing member (4).

Abstract: An electronic part such as a ceramic capacitor and a resistor used in various kinds of electric appliances has an apprehension that an electronic part element might be red-heated to be burnt when an abnormal current flows in spite of dielectric covering member, and therefore it has been impossible to supply a nonflammable electronic part having a stabilized performance. In the present invention, an electronic part is constructed such that since an electronic part element 8 such as a condenser or a resistor is put in a case 5 which in turn is nearly sealed to cut off the supply of oxygen, the electronic part is prevented from catching fire even if it generates heat, and since an opening 6 is formed in a portion of the case 5 or a sealing member 7 so as to allow the gas to be let out, when the electronic part generates heat to increase the pressure, the case 5 can be prevented from being ruptured. Accordingly, it is possible to provide a nonflammable electronic part having stabilized characteristics.

Abstract: An electric double-layer capacitor includes a casing, a pair of porous electrodes disposed within the casing, a permeable separator sandwiched between both the porous electrodes, and an electrolytic liquid formed of an organic solvent, injected into the casing and permeating the porous electrodes and the separator. The separator is formed from an aggregate of cellulose fiber having a surface modified by an organic solvent thereby.

Abstract: An electric double layer capacitor is provided that includes a positive electrode having a currect collector combined with a polarizable electrode material composed mainly of activated carbon, a negative electrode having a current collector of porous metal incapable of forming an alloy with lithium, combined with a carbonaceous material having lithium ions occluded by a chemical method or an electrochemical method to a carbon material capable of occluding and releasing a lithium ions, and a nonaqueous electrolyte containing a lithium salt. The negative electrode is supported on a current collector of porous metal having a thickness of 0.1 to 1 mm and a porosity of 5 to 80%.

Abstract: A double-layer capacitor is composed of at least two individual double-layer capacitor cells connected in series, with bipolar electrodes and electrolyte layers being provided alternately. Each a bipolar electrode includes an electrically conducting carrier with an active layer applied on both sides, the active layer having a low resistance and large active surface. The carrier provides an electrically conducting barrier between the adjoining ion-conducting electrolyte layers, and the electrodes and electrolyte layers are permanently connected. An electrically conducting binder is integrated into the active layer, or a separate connecting layer is provided to promote adhesion between the active and electrolyte layers.

Abstract: A sealed capacitor, which may be hermetic, having a generally flat, planar geometry, is described The capacitor includes at least one electrode provided by a metallic substrate having a capacitive material contacted thereto. The coated substrate can provide at least one of the casing side walls itself or, be connected to the side wall. A most preferred form of the capacitor has the conductive substrate provided with the capacitive material formed from an ultrasonically generated aerosol.

Abstract: An energy storage assembly is made of an energy storage device, and electromagnetic interference (EMI) shield, and an adhesive positioned between the EMI shield and the energy storage device for affixing the energy storage device to a surface of the EMI shield. The EMI shield is a metal that is shaped to partially enclose an electrical component other than the energy storage device.

Abstract: A deposition process for coating a substrate with an ultrasonically generated aerosol spray, is described. The resultant droplets are much smaller in size than those produced by conventional processes, thereby providing the present coating having an increased surface area. When the coated substrate is an electrode in a capacitor, a greater surface area results in an increased electrode capacitance.

Abstract: An electrolytic capacitor device includes a capacitor which has a capacitor element and leads extending from one end of the element, and a square mounting board for use in mounting the capacitor device on a printed circuit board. The mounting board is connected to the one end of the capacitor. The leads are inserted into openings extending through the mounting board. The mounting board has parallel slits extending from the openings to one side edge of the mounting board. Each slit is wider in its open end at the one side edge of the mounting board than the diameter of the associated opening. The bottom surface of the mounting board has metal plate terminals which extend from the openings to different side edges of the mounting board. The terminals have rising portions extending upward along the inner walls of the slits and the openings. The leads have tip ends welded in their peripheries to the rising portions. The top surface of the mounting board has a U-shaped stop opening toward the one side edge.

Abstract: A dry preunit (10), includes a plurality of cells (110, 112, 114) in a true bipolar configuration, which are stacked and bonded together, to impart to the device an integral and unitary construction. Each cell (114) includes two electrically conductive electrodes (111A, 111B) that are spaced apart by a predetermined distance. The cell (114) also includes two identical dielectric gaskets (121, 123) that are interposed, in registration with each other, between the electrodes (111A, 111B), for separating and electrically insulating these electrodes. When the electrodes (111A, 111B), and the gaskets (121, 123) are bonded together, at least one fill gap (130) is formed for each cell. Each cell (114) also includes a porous and conductive coating layer (119, 120) that is formed on one surface of each electrode. The coating layer (119) includes a set of closely spaced-apart peripheral microprotrusions (125), and a set of distally spaced-apart central microprotrusions (127).

Abstract: A chip type aluminum electrolytic capacitor (1) has a capacitor element (2) impregnated with an electrolytic solution, a cylindrical case (3) for containing the capacitor element (2), a sealing member (4) for sealing the cylindrical case (3), and an insulating board (5) having a mounting surface (5c) to be fixed to an electronic circuit board; and vapor pressure of the electrolytic solution is regulated to a predetermined value to prevent deformations of the cylindrical case (3) and the sealing member (4).

Abstract: A gas-tight and/or oil-tight bushing is provided for attachment to a capacitor housing and for providing a connection to a capacitor. The bushings are composed of metal pins electrically insulated from the housing as well as insulators for increasing the leakage distance. The insulators have sections that extend into the inside of the housing to which a cooperating member that connects the bushing to the housing by clamping is secured. An O-ring is arranged between the insulator and the metal pin for sealing. The O-ring is preferably surrounded by a plastic sleeve that prestresses the O-ring for an improved sealing function.

Abstract: A capacitor and a method for making the capacitor using ultrasonic welding to join the cathode layers together are provided. The capacitor includes a housing defining a chamber with a step provided at an inner portion of the housing. A plurality of capacitor layers each including a cathode foil, a separator and an anode foil, each having alignment holes therein to precisely fit with alignment elements housing, is positioned within the chamber, with the alignment holes mating with the alignment elements. The housing is electrically conductive for connection to the cathode foils. Each cathode foil includes a cathode tab which extends away from the foil. The cathode tabs are pressed together and ultrasonically welded to the housing step abutting the periphery of the interior of the housing.

Abstract: A capacitor has a bottomed outer casing housing a capacitor element therein, a lid closing the bottomed outer casing and having a pair of insertion holes defined therein, and a pair of electrode terminals mounted on the lid and connected to the extension leads. The capacitor element includes a plurality of current collectors with respective extension leads extending therefrom. Each of the electrode terminals has an insert inserted in one of the insertion holes with an insulator interposed between the insert and the lid, a flange contiguous to an end of the insert and held against a surface of the lid through the insulator, a joint projecting from the flange and connected to the extension lead, and a staked member contiguous to an opposite end of the insert and crimped over an opposite surface of the lid with the insulator interposed between the staked member and the lid.

Abstract: The invention provides an improved electrolytic capacitor built having (i) an inactive core element; (ii) an active element wound around the inactive core element; and (iii) a package which houses both the active element and the inactive core element.

Abstract: An all tantalum electrolytic capacitor is rendered non-polar by properly anodizing the tantalum electrodes. That is, the anodization process is controlled such that both electrodes have substantially the same amount of capacitance which preferably is twice the capacitance on the rated capacitance of the capacitor. The anodization voltage is at least greater than the rated voltage of the capacitor.

Abstract: A package for electronic circuits can be made using a bottom plate, a top plate, and side walls which are stick capacitors. The top and bottom plates can be used as two of the terminations for the electronic circuit to provide a low impedance connection for heavy currents. The contact areas of the stick capacitor are bonded to the top and bottom plates, such as by reflow soldering. The top and bottom plates and the stick capacitor side walls provide a completely enclosed equivalent of a Faraday shield for superior EMI enclosure. Although the top and bottom are isolated electrically at DC by the dielectric layers of the capacitor, they are effectively short circuited at higher AC frequency. The stick capacitors can be drilled through to provide for additional conductors to the electronic circuit. In another embodiment of the invention, a stiffener for a printed circuit board comprises a stick capacitor as a filler for a laminated beam in which the top and bottom stress members are conductors.

Abstract: A hollow cylindrical resin case provided at a periphery thereof with an axial opening and a resin terminal plate, one of which has a concave coupling section and the other has a convex coupling section, are coupled together and then filler resin is injected between the capacitor element attached to the terminal plate and the resin case to provide a seal. One or both of the resin case and the resin terminal plate are made of thermoplastic resin, and a space is defined between the coupling sections. A dimension of the space and an inserting force applied to the coupling portions are set to appropriate values, thereby realizing a high quality capacitor free from leakage of filler resin.

Abstract: A package-type solid electrolytic capacitor is provided which comprises a capacitor element, an insulating package body having a housing recess with an upward opening for receiving the capacitor element, and an insulating closure member for closing the opening of the housing recess. The capacitor element has an anode layer formed on one end and a cathode layer formed at least on the other end. The housing recess is formed with two internal electrodes in electrical conduction with the anode and cathode layers, respectively, of the capacitor element. The package body is externally formed with two terminal electrodes in electrical conduction with the respective internal electrodes.

Abstract: In a solid state electrolytic capacitor, an increase in capacity and a reduction in size and weight are intended. A concave is formed in one end surface of a porous chip formed by hardening metal powder and a synthetic resin is filled in the concave. An anode bar is provided which passes through the synthetic resin to be fixed to the chip. After a dielectric film is formed on the surface of the chip through anodic oxidation, a solid state electrolytic layer made of manganese dioxide is formed on the dielectric film and then, a cathode film is formed thereon. At an end surface of the chip, an insulating film is provided, so that the distance between the lead terminal and the chip is reduced without any short circuit being caused.

Abstract: A solid electrolytic chip capacitor in which L-shaped portions of the anode terminal and cathode terminal form slanting surfaces which project beyond the projecting side surfaces of the resin sheathing.

Abstract: A rechargeable electric power supply device comprises a supply unit including a pair of electrodes spaced apart from each other embedded in a mixture of (a) fired fine pellets of an electron absorbing material consisting of Nb.sub.3 Sn and V.sub.3 Ge, (b) fine particles of a mixed electron absorbing material comprising V.sub.3 Ga, Bi, CuO, Sr and FeO.sub.2, (c) fine particles of a catalyst, (d) fine particles of C and FeO.sub.2 serving as a stabilizer, and (e) a plasticizer, and a casing for accommodating the pair of electrodes and the mixture therein so that the pair of electrodes are individually in intimate contact with the mixture. The device serves as a kind of capacitor with great charge power and the capability of emitting electrons over a long time.

Abstract: A double-layer capacitor unit includes two electrodes as well as one electrolyte arranged between the electrodes. The electrodes each comprise an active layer made of metal oxide powder on a chemically stable metal carrier. The electrolyte is a diluted aqueous mineral acid or alkaline lye.

Abstract: A condenser including a casing having parallel open chambers and receptacles at two opposite ends of each open chamber, a plurality of condenser elements respectively mounted in the open chambers, a plurality of contact metal plates respectively mounted in the receptacles for the connection of lead wires, each contact metal plate having a contact portion inserted into one open chamber and disposed in contact with one end of the corresponding condenser element, a cover covered on the casing over the receptacles and having wire holes corresponding to the receptacles for passing lead wires.

Abstract: A capacitor module for use with an IGBT including an epoxy housing having two holes completely therethrough. Within the housing are two wound capacitors which are connected in parallel. Additionally, there are two mounting inserts which at least partially line the holes of the housing. The wound capacitors are also connected to the first and second mounting inserts which serve as the terminals for the capacitor module. As a result, the capacitor module exhibits very low self-inductance as well as very low ESR.

Abstract: A capacitor includes a cathode having a porous coating including an oxide of one of ruthenium, iridium, nickel, rhodium, platinum, palladium, and osmium, an anode including a metal selected from the group consisting of tantalum, aluminum, niobium, zirconium, and titanium, spaced from the porous coating, and an electrolyte in contact with the porous coating and the anode.

Abstract: A solid electrolyte capacitor cell includes a cathode contact layer, a cathode layer of carbon and RbAg.sub.4 I.sub.5 surrounded by a peripheral portion of the cathode contact layer, a larger electrolyte layer of RbAg.sub.4 I.sub.5 attached to the cathode layer, and an anode layer of carbon and RbAg.sub.4 I.sub.5, an anode contact layer, and an insulative, annular silver barrier extending between and contacting peripheral portions of the cathode contact layer, the anode contact layer, and edges of the cathode, electrolyte, and anode layers to prevent silver migration. A composite capacitor includes a plurality of the series-connected solid electrolyte cells stacked in an elastic housing that maintains isostatic internal pressure throughout the electrolyte layers of all of the cells, making them resistant to formation of minute cracks in all of the electrolyte layers. This prevents deposition of silver in such cracks during charge/discharge cycling and therefore prevents cathode-to-anode shorts.

Abstract: The invention discloses an upstanding surface mounting type electrolytic chip capacitor. The conventional capacitor has an asymmetrical mass distribution, and oscillations occur, with the result that an automatic surface mounting becomes difficult. The present invention provides upward projections along the edges of the cover portion of the holder, thereby minimizing the settling instability, and forming a plurality of soldering gas discharge and lead guide slots. Further, an annular groove is formed on the bottom of the cover portion and along the upper circumference of the capacitor, so that a short-circuit preventing step should be formed, and that the coupling between the capacitor and the holder should be reinforced. Accordingly, the lead drawing direction does not have to be considered, and the mass distribution of the capacitor becomes symmetrical.

Abstract: A solid electrolyte capacitor in a chip stucture has a fuse element that is arranged in the anode terminal. What is achieved by applying parting locations in the anode terminal is a current path that extends by way of the anode terminal, the fuse element, an anode wire weld point, an anode wire, a sintered anode member, and a cathode contact to the cathode terminal.