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5905629 High energy density double layer energy storage devices  
The present invention relates to lignocellulosic-based carbon-containing double layer energy storage devices having improved electrical energy densities. In particular, the invention provides a...
5900182 Ion-conductive polymer electrolyte, method for producing the same and capacitors using the same electrolyte  
An ion-conductive polymer electrolyte having a high ionic conductivity and a high stability in both of physical and chemical properties is disclosed. It comprises a polymer containing at least one...
5877935 Active carbon used for electrode for organic solvent type electric double layer capacitor  
An active carbon suitable for use in electrodes for an organic solvent type electric double layer capacitor, which is obtained by calcining an easily graphitizable organic substance and then...
5867363 Energy storage device  
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...
5850331 Electric double-layer capacitor and capacitor device  
An electric double-layer capacitor has an elongate separator impregnated with an electrolytic solution and folded alternately in different directions into folded layers of a predetermined length,...
5841627 Pseudo-capacitor device for aqueous electrolytes  
A pseudo-capacitor having a high energy storage capacity develops a double layer capacitance as well as a Faradaic or battery-like redox reaction, also referred to as pseudo-capacitance. The...
5838531 Polarizable electrode for electric double-layer capacitor, and electric double-layer capacitor using polarizable electrode  
The present invention provides; (1) a polarizable electrode for an electric double-layer capacitor, which includes a solid activated carbon obtained by pyrolyzing a mixture mainly containing an...
5824436 Electrically conductive polymeric coating for an electrochemical charge storage device  
An electrochemical cell is provided with first (10) and second (11) electrodes and a solid polymer electrolyte (15) disposed therebetween. The electrodes include a current collecting layer, a layer...
5796574 Vitreous carbon-active carbon composite material, process for producing said composite material, and polarizable electrode using said composite material for use in electric double layer capacitor  
The present invention provides: a vitreous carbon-active carbon composite material wherein the vitreous carbon is derived from a polycarbodiimide resin; a process for producing the above vitreous...
5786981 Basic cell for an electric double layer capacitor  
A basic cell for an electric double layer capacitor has a pair of polarizing electrodes each including a plurality of chip electrodes arranged in matrix or honeycomb pattern. The plurality of chip...
5786980 Electrical component package and packaged electrical component  
A packaged electrical component includes a tubular body having first and second ends and an opening at the first end for receiving an electrical component; an electrical component disposed within...
5781403 Electric double layer capacitor having hydrophobic powdery activated charcoal  
An electric double layer capacitor including a pair of activated charcoal electrodes facing each other with the intermediary of a porous separator, and current collecting members each being...
5751541 Polymer electrodes for energy storage devices and method of making same  
A method for making high power electrochemical capacitors provides for depositing an electrically conducting polymer (20) (22) onto a non-noble metal substrate (10) which has been prepared by...
5748439 Capacitors having high strength electrolytic capacitor separators  
Crosslinked elastomeric electrolytes and compatible separator materials are provided for use in electrical energy storage devices such as aluminum electrolytic capacitors and batteries. The...
5748438 Electrical energy storage device having a porous organic electrode  
An ultracapacitor having two porous organic membrane electrodes is made from microporous polymer substrates (10). The surface of the polymer substrate and the walls of the micropores (30) are...
5742474 Electric double layer capacitor  
An electric double layer capacitor which is usable at a high voltage without causing an irreversible current. Both a polarized positive electrode 14 and a polarized negative electrode 16 are made...
5726856 Hexasubstituted guanidinium salts and ultracapacitors employing them as electrolytes  
Ultracapacitors including at least one cell with two solid, non-porous current collectors, two porous electrodes, preferably of carbon, and a porous separator between the electrodes, employ as...
5706165 Electric double-layer capacitor  
An electric double-layer capacitor including, as the positive electrode and the negative electrode, a material obtained by adhering a polarizable electrode on one or both sides of a conductive...
5682288 Electric double-layer capacitor and method for making the same  
The invention provides an improved double-layer capacitor in which the improvement is a planar layered electrode assembly which has low electrical resistance and which has high electric storage...
5659457 Carbon electrodes and energy storage device made thereof  
An electrode for an energy storage device uses a protonated polymer that is imbedded with an electroactive metal and coated onto activated carbon. Protonated poly(4-vinylpyridine) is coated onto...
5646815 Electrochemical capacitor with electrode and electrolyte layers having the same polymer and solvent  
An electrode material for an electrochemical capacitor and electrochemical capacitors utilizing the electrode material. The electrode material comprises electrically conductive carbon, a soluble...
5621607 High performance double layer capacitors including aluminum carbon composite electrodes  
A high performance double layer capacitor having an electric double layer formed in the interface between activated carbon and an electrolyte is disclosed. The high performance double layer...
5621608 Solid electrolytic capacitor having two solid electrolyte layers and method of manufacturing the same  
In a solid electrolytic capacitor which employs a conducting polymer as the solid electrolyte, a first solid electrolytic layer (3) consisting of a sole conducting polymer is formed by chemical...
5600534 Capacitor having non-conductive plastic frames  
An improved capacitor including a plurality of plastic frame mounted electrode and separator inserts. The plastic frame mounted electrode and separator inserts are oriented in alternating...
5586000 Solid electrolytic capacitor and process for production thereof  
The present invention provides a solid electrolytic capacitor comprising a metal having a dielectric oxide film formed thereon, a conductive polymer compound layer formed on said dielectric oxide...
5581438 Supercapacitor having electrodes with non-activated carbon fibers  
There is disclosed a double-layer capacitor having electrodes formed of a current collector positioned against a non-woven web of non-activated carbon fibers impregnated with carbon particles and...
5568353 Electrochemical capacitor and method of making same  
An electrochemical charge storage device (60) having two asymmetric inorganic electrodes (30, 36) is provided. The device may be fabricated using a bipolar plate which acts as both the conductor,...
5563765 Amorphous cobalt alloy electrodes for aqueous electrochemical devices  
A material for use as an electrode, and particularly the cathode (30) of an electrochemical device, such as a pseudocapacitive device (10). The material is a substantially amorphous material having...
5557497 Capacitor with a double electric layer  
This invention relates to a large capacitor for accumulating electrical energy. In particular, to a capacitor with a double electric layer comprising an electrolyte; at least one pair of...
5555155 Electrochemical capacitor using proton-conducting electrolyte and method of make same  
An electrochemical capacitor device (10) fabricated of a plurality of stacked subassemblies (12, 14) and capped with end portions (16, 18). The device (10) includes a current conducting electrode...
5552245 Modified electrolyte for electrochemical cells and cells using same  
An electrolyte system for use in an electrochemical cell such as a battery or capacitor, and which includes an aqueous electrolyte and a modifier species. The modifier should be adapted to act as a...
5550706 Electrode with a long-time stability and a double-layer capacitor formed thereof  
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...
5538813 Electrochemical storage device having asymmetric electrodes  
An electrochemical storage device is fabricated from two opposing asymmetric electrode assemblies (10) and (11) and a solid polymer electrolyte (15). A first electrode is fabricated from a...
5501922 Polyoxometalate carbon electrodes and energy storage device made thereof  
An electrode for an energy storage device is made from an activated carbon support. The activated carbon has adsorbed onto it a protonated polymer, which has a polyoxometalate absorbed into the...
5453909 Electric double layer capacitor  
An electric double layer capacitor includes a pair of opposing polarized electrodes, a separator, a pair of external electrodes, and an insulating molding case. The pair of opposing polarized...
5450279 Electric double layer capacitor  
An electric double layer capacitor having a rectangular cross-section for an excellent volumetric efficiency and a low internal resistance is disclosed. The capacitor comprises a plurality of...
5442197 Super-capacitor comprising positive and negative electrodes made of a p-doped electron conductive polymer and an electrolyte containing an organic redox compound  
A super-capacitor comprising a positive electrode, a negative electrode, both made of a p-doped electron conductive polymer, and an electrolyte. The electrolyte comprises an organic redox compound...
5430606 Double layer capacitor with high capacitance carbonaceous material electrodes  
A double layer capacitor with electrodes produced from a carbonaceous material having a large capacitance obtained by heat-treating an activated carbon precursor at a temperature below 700° C.,...
5429893 Electrochemical capacitors having dissimilar electrodes  
The invention provides for an improved pseudocapacitive device (10) having dissimilar electrodes (20) and (40). The first electrode (20) stores electrochemical charge via a double layer...
5428501 Packaging structure and method for solid electrolyte capacitors  
A solid electrolyte capacitor cell includes a cathode contact layer, a cathode layer of carbon and RbAg 4 I 5 surrounded by a peripheral portion of the cathode contact layer, a larger electrolyte...
5426561 High energy density and high power density ultracapacitors and supercapacitors  
Ultracapacitor and supercapacitor designs wherein two discrete metal film current collectors of the prior art, one for each of the cathode and anode, are replaced by a single thin polymer film. The...
5420747 Capacitor with a double electric layer cell stack  
This invention relates to a capacitor with cells of a double electric layer comprising of a case of dielectric material for accommodating a stack of capacitor cells having a double electric layer...
5418682 Capacitor having an electrolyte containing a mixture of dinitriles  
An electrical capacitor includes an organic electrolyte to provide high power, high energy density, and broad operating temperature range. The capacitor includes electrodes and an electrolyte...
5402306 Aquagel electrode separator for use in batteries and supercapacitors  
An electrode separator for electrochemical energy storage devices, such as a high energy density capacitor incorporating a variety of carbon foam electrodes. The separator is derived from an...
5400211 Packaged electrical component  
A packaged electrical component includes an electrical component having at least two electrical leads, the electrical component generating a gas during operation, and a package enclosing the...
5398155 Electric double layer capacitors  
A pair of electrode plates each having a lead terminal, which are disposed on opposite polar faces of a stacked electric double layer capacitor element, are made of a stainless steel plate or 42%...
5393619 Cell separator for use in bipolar-stack energy storage devices  
An improved multi-cell electrochemical energy storage device, such as a battery, fuel cell, or double layer capacitor using a cell separator which allows cells to be stacked and interconnected with...
5392191 Transition metal oxide anodes for aqueous pseudocapacitors  
High energy density aqueous pseudocapacitors may be achieved by providing such devices with dissimilar transition metal oxide electrodes. The transition metal oxide electrodes are particularly...
5388028 Low impedance interconnection assembly for high frequency switching power semiconductor devices and low inductance modular capacitor  
A low impedance interconnection assembly for use with high frequency switching power semiconductor devices includes a low inductance modular capacitor, multi-layer planar bus structure and...
5388025 Rechargeable electrical energy storage device having organometallic electrodes  
A rechargeable electrical energy storage device (20). The cell has two electrodes (28, 36) constructed from a similar organometallic compound (30), and the electrodes are electrically connected by...
Matches 401 - 450 out of 520 < 1 2 3 4 5 6 7 8 9 10 11 >