36results about How to "Increase electrostatic capacitance" patented technology

This negative electrode foil for a solid electrolyte capacitor: increases capacitance, reduces ESR and leakage current, improves heat resistance, and reduces manufacturing costs; and improves the power density, achieves rapid charging / discharging, and improves the lifespan characteristics of energy storage elements such as rechargeable batteries, electric double-layer capacitors, and hybrid capacitors. The negative electrode foil or a current collector is used, which: is obtained by forming a metal layer, a mixed layer obtained by mixing a material constituting the metal layer with carbon, and a carbon layer substantially comprising carbon, on a metal foil; and is configured in such a manner as to change as the components of the mixed layer change from a component containing only the material substantially constituting the metal layer to a component substantially containing only carbon, and from the metal layer to the carbon layer.

A voltage converter having a sealed case, a pair of opposing, spaced apart planar electrodes located within the sealed case, a pack of porous dielectric powder filled between the planar electrodes, and an auxiliary electrode electrically connected to one of the planar electrodes and having a portion extending through the pack of porous dielectric powder toward the other planar electrode. When a DC high voltage is applied to one of the planar electrodes, a DC source voltage containing a specific pulsating component is outputted from the other planar electrode.

The present invention provides a contactless electric power supply device for supplying, without contact, electric power to the coils of a linear motor device provided with a track member, a movable body which is installed on the track member, magnets which are arranged in rows on the track member, and the coils which are provided to the movable body. The contactless electric power supply device is provided with: two sets of contactless electric power supply sections each having an electric power supply electrode plate which is provided to the track member so as to extend in the movement direction and an electric power receiving electrode plate which is provided to the movable body and which faces the electric power supply electrode plate, the two sets of contactless electric power supply sections being capable of supplying high-frequency electric power in a contactless manner; a high-frequency electric power source section for supplying high-frequency electric power between the electric power supply electrode plates; and an electric power conversion section which converts the high-frequency electric power supplied in a contactless manner to the electric power receiving electrode plates and which supplies the converted electric power to the coils. As a result of the configuration, the contactless electric power supply device is low cost and can perform, with large electric power supply capacity and high electric power supply efficiency, contactless electric power supply to the coils of the movable body of the linear motor device, and the contactless electric power supply does not affect the generation of a propulsion force.

A card reader for use with a card having a magnetic stripe may include a card insertion port into which the card is inserted; a card passage along which the card is passed; and a disturbing magnetic field generation means structured to generate a magnetic field for disturbing illegal reading of magnetic data recorded in the magnetic stripe. The disturbing magnetic field generation means may include a plurality of coils which are serially-connected with each other; a capacitor connected in parallel with the plurality of the coils; and a drive circuit structured to supply an electric current to the plurality of the coils.

A first inner conductor ( 21 ), a second inner conductor ( 23 ), a first inner conductor ( 22 ), and a second inner conductor ( 24 ) are disposed in the order mentioned from the top in the dielectric element ( 12 ). The first inner conductors ( 21, 22 ) are respectively led out to two opposing side surfaces of the dielectric element. A pair of the second inner conductors ( 23, 24 ) is respectively led out to two opposing side surfaces different from the two opposing side surfaces to which the first inner conductors ( 21, 22 ) are respectively led out. Terminal electrodes ( 31 - 34 ) are respectively disposed on four side surfaces of the dielectric element ( 12 ) for connection with these four inner conductors ( 21 - 24 ) respectively.

A method of manufacturing a semiconductor device, comprising exposing a lower electrode (19) made of polycrystalline silicon and having a roughened surface to oxygen plasma (61), forming a silicon oxide film (19a) on the surface of the lower electrode (19), By exposing the lower electrode (19) on which the silicon oxide film (19a) is formed to nitrogen plasma (62), the surface of the silicon oxide film (19a) and its vicinity are modified into a silicon nitride film (19b). Next, a capacitive insulating film (20) made of tantalum oxide is formed on the lower electrode (19) on which the silicon nitride film (19b) is formed, and then the capacitive insulating film (20) is exposed to oxygen plasma (63) , oxygen is supplied to the capacitive insulating film (20). Next, the capacitive insulating film (20) is heat-treated in an oxidative atmosphere to crystallize it, and then an upper electrode (21) is formed on the crystallized capacitive insulating film (20).

Provided is a production of an electrode for an aluminum electrolytic capacitor, wherein in a first hydration treatment step (ST1), an aluminum electrode provided with a porous layer is immersed in afirst hydration treatment solution having a temperature of 80 DEG C or higher to form a hydrated film on the aluminum electrode, and then in a dehydration step (ST2), the aluminum electrode is heatedin an atmosphere having a temperature of 150-350 DEG C. Next, in a second hydration treatment step (ST3), the aluminum electrode is immersed in a second hydration treatment solution having a temperature of 80 DEG C or higher to form a hydrated film on the aluminum electrode, and then in a chemical conversion step, the aluminum electrode is chemically converted to a voltage of 400 V or higher, andfurther to 600 V or higher.

The present invention relates to a semiconductor ceramic and to a multilayer semiconductor ceramic capacitor. More precisely, the present invention relates to a BaTiO3 based grain boundary insulating type semiconductor ceramic and to a multilayer semiconductor ceramic capacitor using thereof. A purpose of the present invention is to provide a multilayer semiconductor ceramic capacitor, which makes coexistence of a high dielectric property and a high insulating resistance of a semiconductor ceramic possible by improving insulating property of the semiconductor ceramic component. In order to achieve such object, BaTiO3 based semiconductor ceramic of the invention is expressed by BaA(Ti1-[alpha]-[beta]Ga[alpha]Nb[beta])BO3, wherein A / B mole ratio is within a range of 0.900 or more to 1.060 or less and [alpha] / [beta] mole ratio is within a range of 0.92 or more to 100 or less.

A porous electrolytic solution reservoir which is capable of being impregnated with an electrolytic solution is provided in an exterior case so as to make contact with a separator. The average diameter of the pores in the electrolytic solution reservoir is greater than the average diameter of pores in the separator. The electrolytic solution reservoir is impregnated with a predetermined amount of electrolytic solution, so that the occupation ratio of electrolytic solution within the pores in the separator becomes 50% or more when fully charged, and the occupation ratio of electrolytic solution within the pores in the electrolytic solution reservoir becomes 100% or less when fully discharged.

The present invention relates to a specimen tube holder which includes a probe-type capacitance liquid level detection sensor having increased sensitivity and thus enables more precise liquid level recognition. The present invention provides a specimen tube holder comprising: a central holder; and a lateral holder which is made of a conductive material, is spaced apart from a side surface of the central holder so as to have a receiving space formed between the central holder and the lateral holder to allow a specimen tube to be inserted into the receiving space, and has an inner surface formedto be vertically in contact with at least a part of the outer circumferential surface of the specimen tube received in the receiving space.

Provided are a capacitor chip and a solid electrolytic capacitor wherein one or more capacitor elements are laminated on a metal lead frame which is provided for taking out electricity to the outside of the capacitor chip, the capacitor elements are sealed with a resin, and the laminated body is arranged within a fixed range. The allowable range of the total thickness of the laminated capacitor elements is widened and the capacitance is increased without causing appearance failure of the laminated solid electrolytic capacitor.

The invention discloses a method for preparing electric field activation type super capacitors. According to the method, electrode active material is respectively mixed with adhesive and conductive agent evenly, graphite-like material electrode pieces are manufactured on the surface of a metal collector electrode by utilization of the mixture, the manufactured graphite-like electrode pieces are used as positive electrodes and negative electrodes of electrodes of the capacitors, separating membranes are adopted to separate the electrodes, ionic liquid with molecular weight equal to or smaller than 500 is used as electrolyte to assemble the capacitors, electric field activation is performed, and the electric field activation type super capacitors are manufactured. A potential window of the electrolyte of the super capacitors is wide, and rated working voltage of the capacitors is improved; the electrolyte is small in molecular volume, and inserting embedding-emigrating out can be performed among graphite layers under the condition of the electric field activation; electrochemical performance of the electrolyte is stable, the electric field activation can be performed under the condition of high voltage, electrolyte ions can be fully inserted and embedded among the graphite layers, and high-inserting-layer electrostatic capacitors are obtained.

Provided are: an electrode body capable of stably expressing not only the initial capacitance of an electrolytic capacitor but also the capacitance after a high-temperature environmental load is applied; and an electrolytic capacitor provided with this electrode body. This electrode body, which is used for a negative electrode of an electrolytic capacitor, is provided with a negative electrode foil made of a valve action metal and a carbon layer formed on the negative electrode foil. The carbon layer includes a first spherical carbon and a second spherical carbon. The first spherical carbon has a larger BET specific surface area than the second spherical carbon, and the second spherical carbon has a smaller BET specific surface area than the first spherical carbon.

The present invention relates to a metal oxide coated with a conductive polymer, comprising: a metal oxide; and a coating formed on the surface of the metal oxide and comprising a conductive polymer, wherein the conductive polymer is Polymers of protonated monomers.

The invention relates to an electrolyte for a dual-layer capacitor and the dual-layer capacitor. The electrolyte for the dual-layer capacitor comprises an electrolyte and a nitrile organic solvent, wherein the electrolyte is selected from a combination of one or more of the following structural formulas, the structural formulas is shown as specification, and A is N or CH. By improving the electrolyte, the electron transmission rate of the electrolyte under a large current is improved, so that the working voltage of the dual-layer electrolyte fabricated from the electrolyte can reach 2.8-3.2V, and the indexes such as static capacitance, the power density and the cycle property can be greatly improved.

Disclosed is a raw material carbon composition which can be a carbon material for electrodes of electric double layer capacitors when activated. Such a raw material carbon composition is characterized by having a volatile content of not less than 1.3% by mass and not more than 15% by mass. The raw material carbon composition is further characterized by having a microstrength of 5-30% when the volatile content is less than 6% by mass while having a microstrength of a 5-20% when the volatile content is 6% by mass or more. The capacitance per unit volume of an electric double layer capacitor canbe increased by using such a raw material carbon composition.

A solid electrolytic capacitor has a structure wherein a capacitor element (30) is arranged by being stacked, and an anode section (30a) is fixed by being welded on anode mounting planes of anode mounting sections (7a, 7b) provided on an anode terminal. The solid electrolytic capacitor is characterized in that the two anode mounting sections (7a, 7b) are provided, the anode mounting sections (7a,7b) are arranged in parallel, and the adjacent anode mounting sections (7a, 7b) are mutually connected by a connecting section (9).

Provided is a method of producing an electrolytic capacitor being higher in capacitance, lower in leakage current, and difficult to deteriorate these properties even when processed in a heat-treatment process such as reflow soldering process. In the method of producing a solid electrolytic capacitor, firstly, an anode containing a valve metal is prepared. Then, the anode is anodized in an aqueous solution of 0.1% by weight of ammonium hexafluorosilicate to form a dielectric layer on the surface of the anode. An electrolyte layer of polypyrrole is formed on the dielectric layer, and further a cathode is formed on the electrolyte layer. Subsequently, an anode lead is connected to the anode and a cathode lead is connected to the cathode, and these are covered with a resin layer of an epoxy resin.

When manufacturing an electrode for an aluminum electrolytic capacitor, in the first hydration treatment step (ST1), the aluminum electrode having a porous layer is immersed in a first hydration treatment solution at a temperature of 80° C. or higher to form a hydration film on the aluminum electrode , in the dehydration step ( ST2 ), the aluminum electrode is heated in an atmosphere having a temperature of 150° C. or higher and 350° C. or lower. Next, in the second hydration treatment step (ST3), after immersing the aluminum electrode in the second hydration treatment solution at a temperature of 80° C. or higher to form a hydration film on the aluminum electrode, in the chemical conversion step, the aluminum electrode is treated The chemical conversion is carried out up to a voltage of 400V or higher, further 600V or higher.