Patent application number | Description | Published |
20100224954 | SUBSTRATE COMPOSITIONS AND METHODS FOR FORMING SEMICONDUCTOR ON INSULATOR DEVICES - Methods and apparatus for producing a semiconductor on insulator structure include: subjecting an implantation surface of a donor single crystal semiconductor wafer to an ion implantation process to create an exfoliation layer of the donor semiconductor wafer; bonding the implantation surface of the exfoliation layer to a glass substrate using electrolysis, wherein a liquidus viscosity of the glass substrate is about 100,000 Poise or greater. | 09-09-2010 |
20100239479 | Process For Removing Toxic Metals From A Fluid Stream - A process for removing at least one of As, Cd, Hg and Se from a fluid stream, comprising: (I) providing a plurality of Group A particles of a Group A sorbent material, said Group A sorbent material comprising: an activated carbon matrix defining a plurality of pores; sulfur; and an additive adapted for promoting the removal of at least one of As, Cd, Hg and Se from a fluid stream, wherein the additive is distributed throughout the activated carbon matrix; and (II) contacting the fluid stream with a plurality of Group A particles of the Group A sorbent material. The process can involve powder injection, a packed sorbent bed, a fluidized sorbent bed, and combinations thereof. | 09-23-2010 |
20110020202 | SORBENT BODIES COMPRISING ACTIVATED CARBON, PROCESSES FOR MAKING THEM, AND THEIR USE - Sorbent bodies comprising activated carbon, processes for making them, and methods of using them. The sorbent bodies can be used to remove toxic elements from a fluid, such as from a gas stream. For instance, the sorbent bodies may be used to remove elemental mercury or mercury in an oxidized state from a coal combustion flue gas. | 01-27-2011 |
20110070493 | CURRENT COLLECTORS HAVING TEXTURED COATING - A current collector and an electric double layer capacitor including a current collector. The current collector has a conductive layer with an electrode-facing surface and an opposing second surface, each surface having an area, and a textured coating formed over and in contact with at least a majority of the electrode-facing surface. | 03-24-2011 |
20110182000 | MICROPOROUS ACTIVATED CARBON FOR EDLCS - An electric double layer capacitor electrode includes microporous carbon, wherein the microporous carbon includes pores having a size of 1 nm or less, which provide a combined pore volume of at least 0.3 cm | 07-28-2011 |
20110183841 | HIGH-CAPACITANCE AND LOW-OXYGEN POROUS CARBON FOR EDLCS - A method for producing a low oxygen content activated carbon material includes heating a natural, non-lignocellulosic carbon precursor in an inert or reducing atmosphere to form a first carbon material, mixing the first carbon material with an inorganic compound to form an aqueous mixture, heating the aqueous mixture in an inert or reducing atmosphere to incorporate the inorganic compound into the first carbon material, removing the inorganic compound from the first carbon material to produce a second carbon material, and heating the second carbon material in an inert or reducing atmosphere to form the low oxygen content activated carbon material. The activated carbon material is suitable to form improved carbon-based electrodes for use in high energy density devices. | 07-28-2011 |
20110228447 | HIGH PERFORMANCE ELECTRODES FOR EDLCS - An electric double layer capacitor composite electrode includes a current collector having opposing major surfaces, first and second conductive layers formed over respective ones of the major surfaces, and first and second carbon-based layers formed over the first and second conductive layers. | 09-22-2011 |
20110247312 | Coated Flow-Through Substrates and Methods for Making and Using Them - A coated flow-through substrate comprising a flow-through substrate and a sulfur-containing compound disposed as a coating on the flow-through substrate. The coated flow-through substrate may be used, for example, in the removal of a heavy metal from a fluid such as a gas stream. | 10-13-2011 |
20110261501 | Electrochemical Capacitor Having Lithium Containing Electrolyte - A device having a first electrode, a second electrode, a separator positioned between the first electrode and the second electrode, and an electrolyte incorporated throughout the first electrode, the second electrode, and the separator. The electrolyte includes one or more lithium salts and one or more solvents. The first electrode and second electrodes comprise a majority of activated carbon having a microporous pore size distribution. | 10-27-2011 |
20110292569 | MULTI-LAYERED ELECTRODE FOR ULTRACAPACITORS - A multi-layer electrode includes a current collector having opposing first and second major surfaces, a fused carbon layer formed over one or both of the major surfaces, a conductive adhesion layer formed over each fused carbon layer, and an activated carbon layer formed over each conductive adhesive layer. The multi-layer electrode can be incorporated into a high energy density, high power density device such as an electric double layer capacitor. | 12-01-2011 |
20110292571 | HALOGENATED ACTIVATED CARBON MATERIALS FOR HIGH ENERGY DENSITY ULTRACAPACITORS - A method for producing a halogenated activated carbon material includes heating a natural, non-lignocellulosic carbon precursor in an inert or reducing atmosphere to form a first carbon material, mixing the first carbon material with an inorganic compound to form a mixture, heating the mixture in an inert or reducing atmosphere to incorporate the inorganic compound into the first carbon material, removing the inorganic compound from the first carbon material to produce an activated carbon material, and treating the activated carbon material with a halogen source to form a halogenated activated carbon material. The halogenated activated carbon material is suitable to form improved carbon-based electrodes for use in high energy density devices. | 12-01-2011 |
20110294661 | HALOGENATED ACTIVATED CARBON MATERIALS FOR HIGH ENERGY DENSITY ULTRACAPACITORS - A method for producing a halogenated activated carbon material includes heating a natural, non-lignocellulosic carbon precursor in an inert or reducing atmosphere to form a first carbon material, mixing the first carbon material with an inorganic compound to form a mixture, heating the mixture in an inert or reducing atmosphere to incorporate the inorganic compound into the first carbon material, removing the inorganic compound from the first carbon material to produce an activated carbon material, and treating the activated carbon material with a halogen source to form a halogenated activated carbon material. The halogenated activated carbon material is suitable to form improved carbon-based electrodes for use in high energy density devices. | 12-01-2011 |
20120043120 | Dual-Layer Method of Fabricating Ultracapacitor Current Collectors - A method of making a multi-layer current collector comprises forming a first layer from a first formulation over each major surface of a current collector substrate, and forming a second layer from a second formulation over each of the first layers, wherein one of the first formulation and second formulation is a graphite formulation and the other of the first formulation and second formulation is a carbon black formulation. | 02-23-2012 |
20120081837 | Electrolyte System - An electrolyte system having a conductive salt dispersed in a solvent mixture, the solvent mixture having an organic nitrile solvent and a co-solvent. The concentration of the conductive salt in the electrolyte system is 1.25 molar to 3.0 molar. | 04-05-2012 |
20120134070 | Porous Carbon for Electrochemical Double Layer Capacitors - An electrochemical double layer capacitor electrode comprising microporous carbon, wherein the microporous carbon comprises a median pore width of 1.2 nanometers or less, and a ratio of BET surface area to total pore volume greater than 2200 m | 05-31-2012 |
20120187324 | ELECTROLYTE SYNTHESIS FOR ULTRACAPACITORS - A method of forming an electrolyte solution involves combining ammonium tetrafluoroborate and a quaternary ammonium halide in a liquid solvent to form a quaternary ammonium tetrafluoroborate and an ammonium halide. The ammonium halide precipitate is removed from the solvent to form an electrolyte solution. The reactants can be added step-wise to the solvent, and the method can include using a stoichiometric excess of the ammonium tetrafluoroborate to form a substantially halide ion-free electrolyte solution. | 07-26-2012 |
20120257326 | Ultracapacitor With Improved Aging Performance - An electric double layer capacitor comprises first and second electrodes, each comprising respective first and second carbon materials having distinct pore size distributions. A pore volume ratio of the first carbon material is greater than a pore volume ratio of the second carbon material. The pore volume ratio R is defined as R=V | 10-11-2012 |
20130022532 | STEAM ACTIVATED NON-LIGNOCELLULOSIC BASED CARBONS FOR ULTRACAPACITORS - A method for producing an activated carbon material includes heating a non-lignocellulosic carbon precursor to form a carbon material and reacting the carbon material with steam to form an activated carbon material. The activated carbon material is suitable to form improved carbon-based electrodes for use in high energy density devices. | 01-24-2013 |
20130075647 | ELECTROLYTE SYNTHESIS FOR ULTRACAPACITORS - A method of forming an electrolyte solution involves combining ammonium tetrafluoroborate and a quaternary ammonium halide in a liquid solvent to form a quaternary ammonium tetrafluoroborate and an ammonium halide. The ammonium halide precipitate is removed from the solvent to form an electrolyte solution. The reactants can be added step-wise to the solvent, and the method can include using a stoichiometric excess of the ammonium tetrafluoroborate to form a substantially halide ion-free electrolyte solution. | 03-28-2013 |
20130077206 | HIGH VOLTAGE ELECTRO-CHEMICAL DOUBLE LAYER CAPACITOR - An electro-chemical double layer capacitor comprises positive and negative electrodes, where the carbon material that is incorporated into the positive electrode is halogenated carbon material, while the carbon material that is incorporated into the negative electrode is un-halogenated carbon material. Further, the carbon material incorporated into each respective electrode can have a distinct pore size distribution. A pore volume ratio of the carbon material incorporated into the positive electrode is greater than a pore volume ratio of the carbon material incorporated into the negative electrode. The pore volume ratio R is defined as R=V1/V, where V1 is a total volume of pores having a pore size of less than 1 nm, and V is a total volume of pores having a pore size greater than 1 nm. | 03-28-2013 |
20130082213 | HYDROCHLORIC ACID WASHING OF CARBON AND GRAPHITE FOR MAKING CONDUCTIVE INK FOR ULTRACAPACITORS - Water-based conductive ink compositions may include acid-washed graphite particles, carbon black particles, at least one polymeric dispersant, at least one acrylic binder, at least one polyvinylpyrrolidone binder, at least one defoamer, and an aqueous carrier. At least 90 wt. % of the acid-washed graphite particles and the carbon black particles, based on the combined weight of the acid-washed graphite particles and the carbon black particles, may have particle sizes less than 10 μm. The water-based conductive ink composition may have a total elemental contaminant level of less than 100 ppm, based on the total weight of the water-based conductive ink composition. Methods for preparing the water-based conductive ink compositions may include preparing a letdown phase from a first premix containing carbon black and a second premix containing acid-washed graphite. The methods may include washing graphite particles in an strong acid such as hydrochloric acid, nitric acid, sulfuric acid, or mixtures thereof. | 04-04-2013 |
20130207019 | ELECTROLYTE SYNTHESIS FOR ULTRACAPACITORS - A method of forming an electrolyte solution involves combining ammonium tetrafluoroborate and spiro-bi-pyrrolidinium bromide in a liquid solvent to form spiro-bi-pyrrolidinium tetrafluoroborate and an ammonium halide. The ammonium halide precipitate is removed from the solvent to form an electrolyte solution. The reactants can be added step-wise to the solvent, and the method can include using a stoichiometric excess of the ammonium tetrafluoroborate to form a substantially halide ion-free electrolyte solution. | 08-15-2013 |
20130277598 | ELECTROLYTE SYNTHESIS FOR ULTRACAPACITORS - A method of forming an electrolyte solution involves combining ammonium tetrafluoroborate and a quaternary ammonium halide in a liquid solvent to form a quaternary ammonium tetrafluoroborate and an ammonium halide. The ammonium halide precipitate is removed from the solvent to form an electrolyte solution. The reactants can be added step-wise to the solvent, and the method can include using a stoichiometric excess of the ammonium tetrafluoroborate to form a substantially halide ion-free electrolyte solution. | 10-24-2013 |
20130281286 | Methods of Making and Using Activated Carbon-Containing Coated Substrates and the Products Made Therefrom - The present disclosure relates to methods of making and using activated carbon-containing coated substrates, and products made therefrom. | 10-24-2013 |
20130342964 | HIGHLY POROUS ACTIVATED CARBON WITH CONTROLLED OXYGEN CONTENT - Nanoporous activated carbon material having a high specific capacitance in EDLCs and controlled oxygen content, and methods for making such activated carbon material. Reduction of oxygen content is achieved by (a) curing a carbon precursor/additive mixture in an inert or reducing environment, and/or (b) refining (heating) activated carbon material after synthesis in an inert or reducing environment. The inert or reducing environment used for curing or refining is preferably substantially free of oxygen. | 12-26-2013 |
20140016246 | ULTRACAPACITOR WITH IMPROVED AGING PERFORMANCE - An electric double layer capacitor comprises first and second electrodes, each comprising respective first and second carbon materials having distinct pore size distributions. A pore volume ratio of the first carbon material is greater than a pore volume ratio of the second carbon material. The pore volume ratio R is defined as R=V1/V, where V1 is a total volume of pores having a pore size of less than 1 nm, and V is a total volume of pores having a pore size greater than 1 nm. | 01-16-2014 |
20140017568 | ELECTROCHEMICAL HIGH RATE STORAGE MATERIALS, PROCESS AND ELECTRODES - A non-activated, majority non-graphitic amorphous carbon material may be produced by supplying a carbonized precursor material, heating the carbonized precursor material in a first heating step at a temperature and for a duration sufficient to produce a heat-treated carbon material that has a specific surface area less than about 500 m | 01-16-2014 |
20140056798 | MICROWAVE ENERGY-ASSISTED, CHEMICAL ACTIVATION OF CARBON - A method for forming activated carbon comprises forming a feedstock mixture from a carbon feedstock and a chemical activating agent, and heating the feedstock mixture with microwaves in a plurality of successive heating steps to react the carbon feedstock with the chemical activating agent and form activated carbon. Step-wise heating can be used to efficiently control the microwave activation process. | 02-27-2014 |
20140056799 | CARBON ACTIVATION IN A MICROWAVE FLUIDIZED BED PROCESS - A method for forming activated carbon from carbon feedstock involves forming particles of the carbon feedstock, introducing the carbon feedstock particles into a microwave reaction chamber and forming a fluidized bed of the particles within the chamber, introducing steam into the reaction chamber, and introducing microwaves into the reaction chamber to heat the particles using microwave energy and react the heated particles with the steam to form activated carbon. | 02-27-2014 |
20140103245 | ELECTROLYTE SYNTHESIS FOR ULTRACAPACITORS - A method of forming an electrolyte solution involves combining ammonium tetrafluoroborate and a quaternary ammonium halide in a liquid solvent to form a quaternary ammonium tetrafluoroborate and an ammonium halide. The ammonium halide precipitate is removed from the solvent to form an electrolyte solution. The reactants can be added step-wise to the solvent, and the method can include using a stoichiometric excess of the ammonium tetrafluoroborate to form a substantially halide ion-free electrolyte solution. Filtration can be done at low temperatures to reduce the amount of excess bromide in the resulting electrolyte. | 04-17-2014 |
20140124694 | ELECTROLYTE SYNTHESIS FOR ULTRACAPACITORS - A method of forming an electrolyte solution involves combining ammonium tetrafluoroborate and a quaternary ammonium halide in a liquid solvent to form a quaternary ammonium tetrafluoroborate and an ammonium halide. The ammonium halide precipitate is removed from the solvent to form an electrolyte solution. The reactants can be added step-wise to the solvent, and the method can include using a stoichiometric excess of the ammonium tetrafluoroborate to form a substantially halide ion-free electrolyte solution. | 05-08-2014 |
20140134438 | STABILIZED LITHIUM COMPOSITE PARTICLES - Stabilized lithium particles include a lithium-containing core and a coating of a complex lithium salt that surrounds and encapsulates the core. The coating, which is a barrier to oxygen and water, enables the particles to be handled in the open air and incorporated directly into electrochemical devices. The coating material is compatible, for example, with electrolytic materials that are used in electrochemical cells. The average coated particle size is less than 500 microns. | 05-15-2014 |
20140146440 | LITHIUM ION CAPACITORS AND METHODS OF PRODUCTION - A lithium-ion capacitor may include a cathode, an anode, a separator disposed between the cathode and the anode, a lithium composite material, and an electrolyte solution. The cathode and anode may be non-porous. The lithium composite material comprises a core of lithium metal and a coating of a complex lithium salt that encapsulates the core. In use, the complex lithium salt may dissolve into and constitute a portion of the electrolyte solution. | 05-29-2014 |
20140293507 | COMPOSITE ELECTRODE FOR LITHIUM ION CAPACITOR - A lithium-ion capacitor includes a cathode, an anode, and a porous separator positioned between the cathode and the anode. The cathode is formed using activated carbon, and the anode is formed from a composite material that includes lithium titanium oxide and a carbon material such as hard carbon or graphite. | 10-02-2014 |
20150030526 | CARBON FOR HIGH VOLTAGE EDLCS - A method for producing activated carbon includes heating a phenolic novolac resin carbon precursor at a carbonization temperature effective to form a carbon material, and reacting the carbon material with CO | 01-29-2015 |
20150030527 | HIGH VOLTAGE EDLC ELECTRODES CONTAINING CO2 ACTIVATED COCONUT CHAR - A method for producing activated carbon includes heating a coconut shell carbon precursor at a carbonization temperature effective to form a carbon material, and reacting the carbon material with CO | 01-29-2015 |
20150055276 | CARBON-BASED ELECTRODES CONTAINING MOLECULAR SIEVE - Carbon-based electrodes such as for incorporation into ultracapacitors or other high power density energy storage devices, include activated carbon, carbon black, binder and at least one molecular sieve material. The molecular sieve component can adsorb and trap water, which can facilitate the use of the device at higher voltage, such as greater than 3V. The molecular sieve material may be incorporated into the carbon-based electrodes or formed as a layer over a carbon-based electrode surface. | 02-26-2015 |
20150062778 | HIGH-VOLTAGE AND HIGH-CAPACITANCE ACTIVATED CARBON AND CARBON-BASED ELECTRODES - A positive electrode for an energy storage device includes a first activated carbon material comprising pores having a size of ≦1 nm, which provide a combined pore volume of >0.3 cm | 03-05-2015 |
20150062780 | LOW RESISTANCE ULTRACAPACITOR ELECTRODE AND MANUFACTURING METHOD THEREOF - A carbon-based electrode includes activated carbon, carbon black, and a binder. The binder is fluoropolymer having a molecular weight of at least 500,000 and a fluorine content of 40 to 70 wt. %. A method of forming the carbon-based electrode includes providing a binder-less conductive carbon-coated current collector, pre-treating the carbon coating with a sodium napthalenide-based solution, and depositing onto the treated carbon coating a slurry containing activated carbon, carbon black and binder. | 03-05-2015 |