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905 results about "Active particles" patented technology
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Conductive nanocomposite-based electrodes for lithium batteries
ActiveUS20090305135A1High specific capacityHigh reversible capacityMaterial nanotechnologyNon-aqueous electrolyte accumulator electrodesCarbon layerComposite electrode
This invention provides a nanocomposite-based lithium battery electrode comprising: (a) A porous aggregate of electrically conductive nano-filaments that are substantially interconnected, intersected, physically contacted, or chemically bonded to form a three-dimensional network of electron-conducting paths, wherein the nano-filaments have a diameter or thickness less than 1 μm (preferably less than 500 nm); and (b) Sub-micron or nanometer-scale electro-active particles that are bonded to a surface of the nano-filaments with a conductive binder material, wherein the particles comprise an electro-active material capable of absorbing and desorbing lithium ions and wherein the electro-active material content is no less than 25% by weight based on the total weight of the particles, the binder material, and the filaments. Preferably, these electro-active particles are coated with a thin carbon layer. This electrode can be an anode or a cathode. The battery featuring such an anode or cathode exhibits an exceptionally high specific capacity, an excellent reversible capacity, and a long cycle life.
Owner:GLOBAL GRAPHENE GRP INC
Silicon-graphene nanocomposites for electrochemical applications
ActiveUS20140255785A1Improve performanceEffective maintenanceMaterial nanotechnologyHybrid capacitor electrodesGraphene nanocompositesGraphite
A nanographitic composite for use as an anode in a lithium ion battery includes nanoscale particles of an electroactive material; and a plurality of graphene nanoplatelets having a thickness of 0.34 nm to 5 nm and lateral dimensions of less than 900 nm, wherein the electroactive particle has an average particle size that is larger than the average lateral dimension of the graphene nanoplatelets, and the graphene nanoplatelets coat at least a portion of the nanoscale particles to form a porous nanographitic layer made up of overlapping graphene nanoplatelets.
Owner:NANOXPLORE INC
Powder batch of pharmaceutically-active particles and methods for making same
Powder batches of pharmaceutically-active particles and methods for making same. The pharmaceutically-active particles have a small particle size and a narrow particle size distribution and are particularly useful in devices such as medical inhalers. The present invention also provides an aerosol-based method for producing pharmaceutically-active particles wherein an aerosol is produced having a tightly controlled droplet size to produce pharmaceutically-active particles having a small particle size and narrow particle size distribution.
Owner:CABOT CORP
Surface-enhanced spectroscopy-active sandwich nanoparticles
Surface-enhanced Raman spectroscopy (SERS) uses nanoscale metal particles (SERS-active particles) or surface roughness to enhance the Raman signal of Raman-active analytes contacting the surface. SERS sandwich particles contain SERS-active particles sandwiching a Raman-active substance and serve as optical tags. Preferably, the particles are rod-shaped, with each layer (SERS-active and Raman-active) formed as a distinct stripe of the particle. These freestanding particles can be derivatized with surface ligands capable of associating with analytes of interest in, for example, a biological sample. The acquired Raman spectrum of the particle encodes the identity of the ligand. Because of the simplicity and intensity of Raman spectra, highly multiplexed assays are capable using SERS particles with different Raman-active species.
Owner:BECTON DICKINSON & CO +1
Enhanced surfaces, coatings, and related methods
Disclosed are methods for incorporating additives, such as chemically active particles, into the surfaces of articles or into coatings disposed atop articles. The disclosed methods are also applicable to conventional molding techniques, and can be performed in batch or continuous fashion.
Owner:TPK HLDG
Tobacco smoke filter for smoking device with porous mass of active particulate
A tobacco smoking device comprises a porous mass of active particles adapted to enhance a tobacco smoke flowing over said active particles and binder particles. The active particles comprises about 1-99% weight of the porous mass, and the binder particles comprises about 1-99% weight of said porous mass. The active particles and said binder particles are bound together at randomly distributed points throughout the porous mass. The active particles have a greater particle size than the binder particles.
Owner:ACETATE INT LLC
Electrodes Comprising Mixed Active Particles
InactiveUS20070141468A1High capacity retentionImprove cycle performanceLi-accumulatorsNon-aqueous electrolyte accumulator electrodesCharge carrierManganese
A battery containing a first electrode and a second electrode, and an electrolyte for transferring ionic charge-carriers there between, wherein the first electrode contains a first electrode active material represented by the formula A2eM4kM5mM6nM7oOg, and at least one second electrode active material selected from the group consisting of active materials represented by the formula A1aM1b(XY4)cZd, active materials represented by the formula A3hMniO4, and mixtures thereof.
Owner:VALENCE TECH INC
Assays using surface-enhanced raman spectroscopy (SERS)-active particles
ActiveUS20110275061A1Enhanced signalImprove detection limitComponent separationGroup 8/9/10/18 element organic compoundsChemical physicsAssay
Disclosed herein are diagnostic assays using surface enhanced Raman spectroscopy (SERS)-active particles, including liquid-based assays; magnetic capture assays; microparticle-nanoparticle satellite structures for signal amplification in an assay; composite SERS-active particles useful for enhanced detection of targets; and sample tubes and processes for using the same.
Owner:BECTON DICKINSON & CO
Electrodes comprising mixed active particles
ActiveUS7041239B2Improve cycle performanceHigh capacity retentionConductive materialOxide conductorsChemical compositionManganese oxide
Electrode active materials comprising two or more groups of particles having differing chemical compositions, wherein each group of particles comprises a material selected from:(a) materials of the formula A1aM1b(XY4)cZd; and(b) materials of the formula A2eM2fOg; andwherein(i) A1, A2, and A3 are Li, Na, or K;(ii) M1 and M3 comprise a transition metal;(iv) XY4 a phosphate or similar moiety; and(v) Z is OH, or halogen.In a preferred embodiment, A2eM3fOg is A3hMniO4 having an inner and an outer region, wherein the inner region comprises a cubic spinel manganese oxide, and the outer region comprises a manganese oxide enriched in Mn+4 relative to the inner region. In a preferred embodiment, the compositions also comprise a basic compound.
Owner:LITHIUM WERKS TECH BV +1
Preparation method of improved room temperature electron ion fast transfer electrode slice for solid-state secondary lithium battery
InactiveCN105932225AIncrease transfer rateFast transferCell electrodesLi-accumulatorsSolid state electrolyteElectrical conductor
The invention discloses a preparation method of an improved room temperature electron ion fast transfer electrode slicefor a solid-state secondary lithium battery. The method comprises the following steps: (1) evenly mixing an active material, a conductive agent and a fast ion conductor according to a certain proportion; (2) adding a certain amount of a binder into the mixture, and mixing uniformly to obtain a uniform slurry; and (3) preparing the slurry into slices, and drying to obtain the required electrode slice. The preparation method of the electrode slice preparation uses the fast ion conductor material with high temperature high lithium ion conductivity; the material can play the role of increasing the contact area between the active particles and solid electrolyte, and he form a three-dimensional electron and lithium ion transport network, so as to ensure the rapid conduction of the electrons in the electrode also improve the transmission rate of lithium ions between the active particles and electrolyte. Therefore, the preparation method is beneficial to reducing the interface impedance among the active particles in the electrode slice and between the active particles and the solid electrolyte, thereby increasing the power rate performance of the solid-state secondary lithium battery.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
Substrate with surface-enhanced Raman scattering activity and preparation method thereof
The invention provides a substrate with surface-enhanced Raman scattering activity and a preparation method thereof, and the method comprises the following steps: the glass base surface is subjected to hydroxylation and amination treatment; catalytic hydrolysis is carried out on ethyl orthosilicate under the alkali condition by taking alcohol as a solvent; Silica microspheres with even size and smooth surface are prepared by an oscillation method; silane coupling agent of which the tail end is provided with amino is assembled on the surface of the silica microspheres; silver sol obtained by reducing sodium borohydride to silver nitrate through oscillation is assembled on the surface of SiO2-NH2NPs, and is diffused in water again after centrifugal separation and washing by distillated water; self assembly is carried out on the silver sol after being placed in SiO2@Ag NPs dispersion for 6-12h; the SERS active substrate is obtained after taking out from water and drying. In the SERS active substrate of the invention, the active particles and the substrate are combined firmly, thus being applicable to detecting unimolecular Raman signals in aqueous solution; the substrate can be used for SERS detection repeatedly, thus improving repeated utilization ratio of the substrate.
Owner:NORTHWEST NORMAL UNIVERSITY
Fluid controllable laser endodontic cleaning and disinfecting system
ActiveUS20090042171A1Promote absorptionIncrease coverageWheelchairs/patient conveyanceDental toolsFiberActive agent
An endodontic probe is used to perform disinfection procedures on target tissues within root canal passages and tubules. The endodontic probe can include an electromagnetic radiation emitting fiber optic tip having a distal end and a radiation emitting region disposed proximally of the distal end. According to one aspect, the endodontic probe can include a porous structure that encompasses a region of the fiber optic tip excluding the radiation emitting region and that is loaded with biologically-active particles, cleaning particles, biologically-active agents, or cleaning agents for delivery from the porous structure onto the target tissues. Another aspect can include provision of the endodontic probe with an adjustable channel-depth indicator, which encompasses a region of the fiber optic tip besides the radiation emitting region and which is movable in proximal and distal directions along a surface of the fiber optic tip to facilitate the provision of depth-of-insertion information to users of the endodontic probe.
Owner:BIOLASE TECH INC
Particulate electrode including electrolyte for a rechargeable lithium battery
InactiveUS7033702B2Electrode carriers/collectorsSolid electrolyte cellsParticulatesPolymer electrolytes
A matted particulate electrode located between the current collector and a porous separator of a rechargeable lithium battery is described, which contains electro-active particles intermixed with pliable, solid, lithium ion conducting, polymer electrolyte filaments having adhesive surfaces. The electro-active particles and the optionally added electro-conductive carbon particles adhere to the tacky surface of the adhesively interlinking polymer electrolyte filaments. The matted particulate electrode is impregnated with an organic solution containing another lithium compound. In a second embodiment the porous separator is coated on at least one of its faces, with polymer electrolyte having an adhesive surface and made of the same polymer as the electrolyte filaments. The polymer electrolyte filaments in the matted layer may adhere to the coated surface of the separator. In addition the polymer coating is partially filling the pores of the porous electrolyte, but leaving sufficient space in the pores for the organic solution to penetrate the separator of the lithium battery.
Owner:ELECTROVAYA
Silicon-carbon composite material, preparation method thereof and lithium ion battery employing same
ActiveCN102694155APossesses electrochemical reversible intercalation and delithiation performanceAlleviate chalking and sheddingMaterial nanotechnologyCell electrodesCarbon compositesSilicon monoxide
The invention discloses a silicon-carbon composite material, a preparation method thereof and a lithium ion battery prepared by adopting the material. The preparation method of the silicon-carbon composite material comprises the following steps: (1) mixing a composite material (silica-coated nano-silicon) manufactured by silicon monoxide, a porous carbon-based material and excessive hydrofluoric acid solution to obtain another composite material in which nano-silicon particles are compounded in pores of the porous carbon-based material; and (2) heating a composite material in which nano-silicon particles are compounded in pores of a high polymer-coated porous carbon-based material under an inert atmosphere to obtain the silicon-carbon composite material coated by porous carbon spheres. The process raw materials are accessible and simple to prepare. The silicon-carbon composite material has electrochemical reversible embedded lithium removal performance, greatly relieves efflorescence and falling-off phenomena of active particles in the charge-discharge process and has the high lithium storage capacity characteristic of silicon materials and the high cycling stability of carbon materials, and a battery prepared by the silicon-carbon composite material has better cyclicity.
Owner:CHERY AUTOMOBILE CO LTD
Negative electrode active particle and method for manufacturing the same
ActiveUS20170117543A1Suppress gas productionImprove stabilityElectrode rolling/calenderingElectrode thermal treatmentActive particlesMaterials science
Owner:LG ENERGY SOLUTION LTD
Dielectric barrier discharge water treatment device and method
InactiveCN103482720AIncrease chance of contactImprove mass transfer efficiencyWater/sewage treatment by irradiationWater/sewage treatment by electrochemical methodsLow voltageHigh pressure
Owner:TAIYUAN UNIV OF TECH
Triphase AC sliding arc non-balancing plasma sewage treating apparatus
InactiveCN101066791AImprove mass transfer factorPromote degradationWater/sewage treatment by magnetic/electric fieldsForming gasHigh pressure
The triphase AC sliding arc non-balancing plasma sewage treating apparatus includes one triphase AC high voltage power source, one water cooled glass reaction kettle, three knife metal electrodes connected separately to three phase line of the triphase AC plasma power source, one insulating cover, one atomizing nozzle and other parts. The sewage from the sewage source and the carrier gas from the carrier gas source are sprayed in the atomizing nozzle to form gas-liquid mixture entering to the water cooled glass reaction kettle, and the gas-liquid mixture drives the high voltage puncture arc to slide fast downstream and to form sliding pulse arc discharge in the surface of the electrodes, so as to generate non-balancing plasma including O, OH, H2O2, HO2., H, other active particles, ultraviolet ray, etc to degrade organic pollutants in sewage.
Owner:SUN YAT SEN UNIV
Galvanically-Active In Situ Formed Particles for Controlled Rate Dissolving Tools
A castable, moldable, and / or extrudable structure using a metallic primary alloy. One or more additives are added to the metallic primary alloy so that in situ galvanically-active reinforcement particles are formed in the melt or on cooling from the melt. The composite contain an optimal composition and morphology to achieve a specific galvanic corrosion rate in the entire composite. The in situ formed galvanically-active particles can be used to enhance mechanical properties of the composite, such as ductility and / or tensile strength. The final casting can also be enhanced by heat treatment, as well as deformation processing such as extrusion, forging, or rolling, to further improve the strength of the final composite over the as-cast material.
Owner:TERVES
Encapsulated active particles and methods for making and using the same
The invention relates to preserving the properties of active particles through use of an encapsulant which may be removable. The encapsulant may protect the active particles against premature deactivation. If desired, the encapsulant may be removed to rejuvenate the active particles. Various processes can be implemented to introduce encapsulated particles to embedding substances which may be used in various products.
Owner:COCONA INC
Fluid controllable laser endodontic cleaning and disinfecting system
ActiveUS8002544B2Promote absorptionIncrease coverageWheelchairs/patient conveyanceDental toolsFiberActive agent
An endodontic probe is used to perform disinfection procedures on target tissues within root canal passages and tubules. The endodontic probe can include an electromagnetic radiation emitting fiber optic tip having a distal end and a radiation emitting region disposed proximally of the distal end. According to one aspect, the endodontic probe can include a porous structure that encompasses a region of the fiber optic tip excluding the radiation emitting region and that is loaded with biologically-active particles, cleaning particles, biologically-active agents, or cleaning agents for delivery from the porous structure onto the target tissues. Another aspect can include provision of the endodontic probe with an adjustable channel-depth indicator, which encompasses a region of the fiber optic tip besides the radiation emitting region and which is movable in proximal and distal directions along a surface of the fiber optic tip to facilitate the provision of depth-of-insertion information to users of the endodontic probe.
Owner:BIOLASE INC
Negative active material for rechargeable lithium battery and rechargeable lithium battery including the same
InactiveUS20080145759A1Large capacityExcellent cycle-life and efficiency characteristicSilver accumulatorsConductive materialPhysical chemistryActive particles
A negative active material for a rechargeable lithium battery includes Si active particles, and a 3-component to 7-component metal matrix that surrounds the active fine particles without reacting therewith. The negative active material shows high capacity and improved cycle-life characteristics.
Owner:SAMSUNG SDI CO LTD
Functional Porous Multilayer Fibre and its Preparation
InactiveUS20080053891A1Improve mechanical stabilityMaximal functionalityHollow filament manufactureSynthetic resin layered productsFiberParticulates
The invention relates to a hollow or solid fibre having multiple porous layers concentrically arranged, and wherein at least one of the layers comprises functionalized or active particles that are well accessible and maintain their function after preparation. The layer containing high loads of particles can be either the outer or the inner layer. The main function of the other porous layer is to provide mechanical stability to the fibre. It can further act as a sieve and prevent unwanted compounds or species to come in contact with the functionalized particulate matter. Where it is the inner layer, the second layer can advantageously be a biocompatible material. With the second being the outer layer it is now possible to reach a particle content of 100 wt % in the inner layer. These fibres comprising high densities of functionalized particulate matter and of still sufficient mechanical strength can be used for (selective) adsorption, conversion, isolation or purification of compounds from a mixture of compounds, in particular from a fermentation broth, tissue broth, plant broth, cell broth or blood.
Owner:MOSAIC SYST
Annular discharge based transient state plasma igniter
ActiveCN102913365AIncrease the ignition areaEasy to igniteEngine ignitionMachines/enginesChemical reactionReaction rate
The invention relates to an annular discharge based transient state plasma igniter. An insulation sleeve is located in an insulation protection sleeve, and one end of the insulation sleeve is located in a cathode. An anode conduction rod is located in the insulation sleeve, and one end of the anode conduction rod is arranged in a center hole of the cathode. One end of the insulation protection sleeve is arranged in a fixing base. The anode is located in the cathode. The transient state plasma igniter is provided with a mixed gas channel. According to the invention, high-energy nanosecond pulse is used to discharge electricity to form a local high temperature area, and a large quantity of active particles are activated to ignite combustible mixed gas in an extremely short period of time. The ignition area is large, and the mixed gas can be ignited by multiple points; the ignition time is extremely short, and the ignition delay time is shorter; the ignition energy can be well coupled with the gas mixture, macromolecule hydrocarbon fuel in the ignition area is ionized as active particles with low activation energy, so that the chemical reaction of the mixed gas is faster, the reaction time is shorter, and the ignition success rate is high.
Owner:AIR FORCE UNIV PLA
High-power high-capacity lithium ion battery and preparation method thereof
ActiveCN106469825AMeet the requirements of instantaneous high-power workMeet the requirements of large capacityFinal product manufactureElectrode carriers/collectorsInternal resistanceElectrical battery
Owner:BEIJING HAWAGA POWER STORAGE TECH
Conducting polymer-transition metal electro-catalyst compositions for fuel cells
ActiveUS20080193827A1Improve fuel cell performanceReduced Ohmic lossCell electrodesConductive materialConductive polymerOxygen
An electro-catalyst composition for use as an electrode, gas diffusion layer-supported electrode, catalytic electrode-coated solid electrolyte layer, and / or membrane-electrode assembly in a proton exchange membrane (PEM) type fuel cell. The composition comprises: (a) a proton- and electron-conducting polymer having at least one heteroatom per backbone monomer unit thereof and a plurality of neutral transition metal atoms covalently bonded to at least a portion of the heteroatoms; wherein the polymer has an electronic conductivity no less than 10−4 S / cm and a proton conductivity no less than 10−5 S / cm. Preferably, the electro-catalyst composition further comprises (b) a plurality of catalytically active particles of a transition metal, nucleated around the covalently bonded transition metal atoms. Also preferably, additional catalytically active catalyst particles with an average dimension smaller than 2 nm (most preferably smaller than 1 nm) are physically dispersed in such a polymer and typically not chemically bonded thereto. A hydrogen-oxygen PEM fuel cell or a direct methanol fuel cell (DMFC) featuring such an electro-catalyst composition in a thin-film electrode exhibits a superior current-voltage response.
Owner:NANOTEK INSTR GRP LLC
Aqueous foams, food products and a method of producing same
InactiveUS20100310746A1Extended shelf lifeImprove stabilityDough treatmentFrozen sweetsFood gradeModular product
The present invention describes an aqueous foam that includes water, at least one polysaccharide and food-grade, interfacially active particles. The present invention also describes an indulgent shelf-stable foamed food product that contains this aqueous foam. The indulgent shelf-stable foamed food products of the invention have an improved foamed and modular product texture.
Owner:NESTEC SA
Electrodes Comprising Mixed Active Particles
ActiveUS20060194112A1High capacity retentionImprove cycle performanceConductive materialOxide conductorsChemical compositionActive particles
Electrode active materials comprising two or more groups of particles having differing chemical compositions, wherein each group of particles comprises a material selected from: (a) materials of the formula A1aM1b(XY4)cZd; and (b) materials of the formula A2eM2fOg; and wherein (i) A1, A2, and A3 are Li, Na, or K; (ii) M1 and M3 comprise a transition metal; (iv) XY4 a phosphate or similar moiety; and (v) Z is OH, or halogen.
Owner:RIL USA INC +1
Process for preparing high purity hydrochloric acid by circularly absorbing hydrogen chloride by-product
InactiveCN1951801ASatisfied with the resultExpand the range of industrial applicationsChlorine/hydrogen-chloride purificationActive particlesPolypropylene
The invention discloses a preparing method of high-purity alcaine technology through circulating and adsorbing by-product of hydrogen chloride, which comprises the following steps: aerating hydrogen chloride gas with organic impurity in the condenser at -10- -40 deg.c and gas-liquid separator; adsorbing gas with little impurity through active particle charcoal; aerating adsorbed gas into one-grade and two-grade graphite falling-film; adsorbing through pure water to obtain the high-purity alcaine; adsorbing non-adsorbed hydrogen chloride through cold water; putting hydrogen chloride and diluted acid in the graphite polypropylene falling-film adsorbing tower into cooling groove; utilizing circulating pump to transmit the inlet of one-grade falling-film adsorbing tower; circulating the adsorption.
Owner:ZHEJIANG UNIV OF TECH
Si-C composite material and preparation method thereof and lithium ion battery containing same
ActiveCN103107317APossesses electrochemical reversible intercalation and delithiation performanceAlleviate chalking and sheddingElectrode manufacturing processesSecondary cellsCarbon compositesElectrical battery
The invention discloses a preparation method of a Si-C composite material. The preparation method comprises the following steps of: (1) cauterizing Si powder in an oxygen-containing atmosphere to obtain a SiO2-coated Si composite material; (2) mixing the SiO2-coated Si composite material with a carbohydrate, coating the SiO2-coated Si composite material with a carbon precursor by a hydrothermal method, and heating and carbonizing in an inert atmosphere to obtain a carbon-coated composite material which is coated on the SiO2-coated Si composite material; and (3) corroding SiO2 with excessive hydrofluoric acid to obtain the Si-C composite material. The Si-C composite material provided by the invention has electrochemical reversible lithium embedding / extraction property so as to effectively prevent chalking and dropping of the active particles in the charge / discharge process, and also has high lithium storage capacity property of the Si-based material as well as high cycling stability of the C-based material. Therefore, a battery prepared by the Si-C composite material has better cycling performance.
Owner:CHERY AUTOMOBILE CO LTD
Tobacco smoke filter for smoking device with porous mass of active particulate
A tobacco smoking device comprises a porous mass of active particles adapted to enhance a tobacco smoke flowing over said active particles and binder particles. The active particles comprises about 1-99% weight of the porous mass, and the binder particles comprises about 1-99% weight of said porous mass. The active particles and said binder particles are bound together at randomly distributed points throughout the porous mass. The active particles have a greater particle size than the binder particles.
Owner:ACETATE INT LLC
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