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6454816 Supercapacitor using electrode of new material and method of manufacturing the same  
A supercapacitor using an electrode formed of a new material is provided. The supercapacitor includes two electrodes facing each other, the electrodes being composed of carbon nanotubes, an...
6447555 Method of fabricating double-layer capacitor with lower contact resistance  
There is disclosed an electric double-layer capacitor that is adapted for use in an electric vehicle, for example, and uses aluminum collector electrodes. A native oxide film is formed on each...
6445566 Power source element  
A power source element has a container made of an insulation material. The container has an interior space containing an anode active material, a cathode active material spaced apart from the anode...
6442015 Electrochemical capacitors  
An electrochemical capacitor wherein electrode members include polarizing electrodes, whose main ingredient is a carbon material having partially oxidized graphite-like microcrystalline carbon,...
6430031 Low resistance bonding in a multi-electrode double layer capacitor having single electrolyte seal and aluminum-impregnated carbon cloth electrodes  
An ultrasonically bonded electrical interconnection for use in a double layer capacitor consists of ten or more current collector foils bonded together and at least one dummy collector foil bonded...
6426862 Capacitor with dual electric layer  
A capacitor with dual electric layer, wherein one of the electrodes is made of a porous carbon material and the other capacitor, of a material containing lead sulfate. The capacitor features...
6424517 Electric double layer capacitor  
The invention relates to a non-aqueous electric double layer capacitor which has a high power output, a high energy density, and has excellent voltage-retention properties.
6414838 Cylindrical electric double-layer capacitor  
A cylindrical electric double-layer capacitor includes an electrode winding which is formed by superposing band-shaped positive and negative electrodes one on another with a first separator...
6414836 Electrochemical capacitors having electrodes with diverse redox potentials  
Graphitic nanofibers, which include tubular fullerenes (commonly called “buckytubes”), nanotubes and fibrils, which are functionalized by chemical substitution, are used as electrodes in...
6411496 Electric double layer capacitor and separator therefor  
An electric double layer capacitor having an element impregnated with a non-aqueous electrolyte, said element comprising positive and negative electrodes made of carbonaceous electrodes, and a...
6411497 Separator for electric double-layer capacitor  
A separator for an electric double-layer capacitor with an excellent property of preventing a short circuit between the electrodes, a good ionic permeability and a high strength is provided by a...
6402792 Electric double layer capacitor and process for its production  
An electric double layer capacitor comprising an electrode containing a carbonaceous material having a specific surface area of at least 500 m 2 /g, and an organic electrolytic solution capable of...
6404618 Electrolytic capacitor operable as an A/C capacitor  
An aluminum electrolytic capacitor which has the capacity to operate at a constant A/C voltage as long as the capacitor is energized. The aluminum foil used in the capacitor is an amorphous oxide...
6400554 Electrolytic capacitor, its anode body, and method of producing the same  
The present invention provides an electrolytic capacitor and its anode body using a laminate of plurality of sheets of valve metal foil, exhibiting excellent high-frequency response and lower inner...
6392868 Electric double layer capacitor  
An electric double-layer capacitor has a pair of thrust plates for thrusting a stacked cell pair and a gasket for encapsulating the stacked cell pair together with the thrust plates. The thrust...
6392867 Electric double layer capacitor and method for preparing the same  
An electric double layer capacitor containing a polymer gel electrolyte layer provided between polarizable electrodes, wherein the polymer gel electrolyte layer contains a nonaqueous electrolytic...
6379402 Method for manufacturing large-capacity electric double-layer capacitor  
This relates to a process for producing an electric double layer capacitor having a low resistance and a large capacitance of at least 10F, and it is an object to provide a process for producing a...
6377441 Electric double-layer capacitor with collectors of two or more stacked collector sheets  
An electric double-layer capacitor has a porous separator, a pair of polarizable electrodes confronting each other with the separator interposed therebetween, and an electrolytic solution, all...
6366447 Electrolytic capacitor and method of manufacturing it  
Capacitor element ( 20 ) formed by winding both anode and cathode electrode foils connected with lead terminal ( 10 ) via a separator is placed in bottomed cylindrical shape outer case ( 30 ) made...
6364915 Method of sealing an ultracapacitor substantially free of water  
A method of sealing an ultracapacitor substantially free of water is disclosed. The method includes providing a multilayer cell comprising two solid, non porous current collectors, separated by two...
6359769 Electric double layer capacitor and process for manufacturing same  
A plurality of polarizable electrodes, a laminate of a collector layer, a polarizable electrode layer of a porous sheet, and a carbon-based conductive material interposed therebetween, are disposed...
6356432 Supercapacitor having a non-aqueous electrolyte and an active carbon electrode  
The invention relates to a supercapacitor having a non-aqueous electrolyte and two carbon electrodes each containing a binder and an electrochemically active material constituted by active carbon...
6356433 Conducting polymer ultracapacitor  
A sealed ultracapacitor assembly is formed with first and second electrodes of first and second conducting polymers electrodeposited on porous carbon paper substrates, where the first and second...
6353528 Solid activated carbon, process for manufacturing the same and electric double layer capacitor using the same  
Disclosed is a solid activated carbon and a process for manufacturing the solid activated carbon which is particularly suitable for electrode materials used in an electric double layer capacitor...
6343003 Capacitor element and battery cell  
A capacitor element and a battery cell which a dry-up phenomenon is restricted and an internal resistance is small are provided. The capacitor element provides a porous separator which has ion...
6341057 Double layer capacitor and its manufacturing method  
A double layer capacitor and a method for producing the same wherein the double layer capacitor comprises a conductive coating based on binders of the melamine resin type such that the conductive...
6341058 Electric double layer capacitor and method of forming the same  
The present invention provides an electric double layer capacitor having a pail of polarized electrodes separated by a separator, the polarized electrodes having surfaces facing to the separator,...
6339529 Electric double layer capacitor and method of forming the same  
A unitary-formed electrode structure serving as both a collector and a polarization electrode includes an electrically conductive base serving as the collector, and a polarization electrode that...
6339528 Metal oxide electrode for supercapacitor and manufacturing method thereof  
A metal oxide electrode for a supercapacitor and a manufacturing method thereof are disclosed. Potassium permanganate is absorbed on a conductive material, such as carbon or activated carbon, and...
6335865 Printed wiring board  
In a printed wiring board, slotted portions are provided in a grounding layer so as to be positioned under communication lines print-wired on a printed wiring board. Capacitors are provided between...
6335857 Electric double layer capacitor and electrode therefor  
An electrode for an electric double layer capacitor, which is a sheet electrode comprising a carbonaceous material and a polytetrafluoroethylene and having a K value_which is calculated by formula...
6331282 Manganese oxyiodides and their method of preparation and use in energy storage  
A method for synthesizing a manganese oxyiodide, including the steps of reducing sodium permanganate by lithium iodide at ambient temperature to obtain the manganese oxyiodide, and annealing the...
6327137 Electric double layer capacitor apparatus  
An electric double layer capacitor with a control circuit component. When the electric double layer capacitor is provided in plural and these capacitors are serially connected for charging thereof...
6327136 Electrode-forming composition, activated carbon electrode and electric double layer capacitor  
An electrode-forming composition for providing an activated carbon electrode for an electric double layer capacitor is provide by blending activated carbon, a vinylidene fluoride polymer and a...
6324049 Electric double layer capacitor  
An electric double layer capacitor is formed by stacking one or a plurality of basic cells each having a pair of polarized electrodes, collectors, and a gasket unit. The polarized electrodes oppose...
6320740 Method for manufacturing a polarized electrode for an electric double-layer capacitor  
A method for fabricating an electric double-layer capacitor includes the steps of contacting a polarized electrode which includes a polymer having no bridge structure therein and activated carbon...
6315918 Non-aqueous electrolytic solution for capacitor and capacitor containing non-aqueous electrolytic solution  
Non-aqueous electrolytic solutions for capacitors which release a little gas, have excellent potential window of electrochemical stability and enable capacitors to show excellent...
6309428 Method for producing electrochemical capacitor  
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...
6307732 Aluminum electrolytic capacitor  
The present invention provides a highly reliable aluminum electrolytic capacitor which has no flash point and shows little change or degradation in external appearance and properties. The water...
6299790 Electric double layer capacitor  
An electric double layer capacitor capable of functioning over a broad temperature range with a reduced incidence of electrolyte leakage and a low rate of self discharge is formed from a solid...
6299850 Carbon activation process for increased surface accessibility in electrochemical capacitors  
A process for making carbon film or powder suitable for double capacitor electrodes having a capacitance of up to about 300 F/cm 3 is disclosed. This is accomplished by treating in aqueous nitric...
6301093 Electrochemical capacitor  
An electrochemical capacitor has a pair of positive and negative electrode elements each having a solid electrode disposed on a surface of a current collector. The positive and negative electrode...
6291069 Activated carbon for electric double layer capacitor and method of manufacturing same  
Activated carbon for use in an electric double layer capacitor is in the form of particles produced by crushing activated carbon or fibers of activated carbon. The particles have a surface covered...
6288888 Electric double layer capacitor  
In an electric double layer capacitor having a pair of polarizable electrodes containing activated carbon and auxiliary materials for giving electric conductivity to the polarizable electrodes, the...
6282081 Electrode for capacitor, method for producing the same and capacitor  
An electrode for a capacitor comprising a collector and a layer of a polarizable electrode material formed thereon, which includes activated carbon powder, a conducting aid, and a mixture of...
6278604 Capacitor with cell balancing circuit  
A multiple cell capacitor (200) includes at least first and second capacitor cells (260) and a cell balancing circuit (265) electrically coupled to the first and second capacitor cells (260)....
6275371 Electrode material for electrochemical capacitor, electrochemical capacitor comprising the same, and method for the production of the same  
An electrode material for an electrochemical capacitor having a large capacity, having a titanium oxide compound such as titanium oxide, hydrated titanium oxide or their hydrogenated products, and...
6256190 Ultracapacitor electroyte  
The invention relates to an ultracapacitor and to a method of making an ultracapacitor. The ultracapacitor of the invention includes two solid, nonporous current collectors, two porous electrodes...
6252762 Rechargeable hybrid battery/supercapacitor system  
A rechargeable hybrid battery/supercapacitor electrical storage system capable of providing high energy and high power densities comprises an intercalation electrode (17) and a capacitor electrode...
6246568 Electric double-layer capacitor and method for manufacturing the same  
The invention relates to an electric double layer capacitor for large capacity used in regeneration or electric power storage for various electric appliances and electric vehicles, and its...