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302 results about "Galvanic cell" patented technology
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A galvanic cell or voltaic cell, named after Luigi Galvani or Alessandro Volta, respectively, is an electrochemical cell that derives electrical energy from spontaneous redox reactions taking place within the cell. It generally consists of two different metals immersed in an electrolyte, or of individual half-cells with different metals and their ions in solution connected by a salt bridge or separated by a porous membrane.
Galvanic Corrosion Methods and Devices for Fixation of Stent Grafts
Methods and devices are provided to contribute to improved stent graft fixation within vessels at treatment sites. Improved stent graft fixation within vessels at treatment sites is provided by providing stent grafts and methods of making and using stent grafts having structural scaffoldings which undergo controlled galvanic corrosion in situ. Other embodiments include stent grafts having galvanic cells attached to the vessel luminal wall-contacting sides. Still other embodiments include stent grafts that undergo controlled galvanic corrosion and include at least one additional cell growth promoting factor.
Owner:MEDTRONIC VASCULAR INC
Controlled dosage drug delivery
A planar disposable transdermal iontophoretic delivery system is disclosed which includes amounts of an oxidizable species and a reducible species connected by a common conductor forming a galvanic battery for serving as the sole source of power and control for the system, an amount of a therapeutic agent is provided to be driven through the skin of a patient solely through the use of the galvanic battery. The galvanic battery is provided with a lot-tested coulombic capacity rating to predict dosage.
Owner:THE TAPEMARK
Controlled dosage drug delivery
InactiveUS7031768B2Eliminate oxygen reduction current and associated pH changeAvoid medicationElectrotherapyMedical applicatorsElectricityElectrical conductor
A planar disposable transdermal iontophoretic delivery system is disclosed which includes amounts of an oxidizable species and a reducible species connected by a common conductor forming a galvanic battery for serving as the sole source of power and control for the system, an amount of a therapeutic agent is provided to be driven through the skin of a patient solely through the use of the galvanic battery. The galvanic battery is provided with a lot-tested coulombic capacity rating to predict dosage.
Owner:THE TAPEMARK
Actively sterile surfaces
InactiveUS6080490AImprove responseImprove antibacterial propertiesSurgeryCatheterGalvanic cellAntimicrobial surface
An actively antimicrobial surface for a substrate and for use in a biologically dynamic environment, such as for treating and preventing microbial infections, including a film consisting of at least an antimicrobial element and another electrochemically nobler element and which forms multitudinous galvanic cells with electrolyte-containing biological fluids, such as body fluids from wounds, etc., for releasing the antimicrobial element at the surface.
Owner:NUCRYST PHARMA
Process for production of actively sterile surfaces
InactiveUS6365220B1Improve responseImprove antibacterial propertiesBiocideVacuum evaporation coatingGalvanic cellAntimicrobial surface
A process for production of an actively antimicrobial surface for a substrate and for use in a biologically dynamic environment, such as for treating and preventing microbial infections, including a film consisting of at least an antimicrobial element and another electrochemically nobler element and which forms multitudinous galvanic cells with electrolyte-containing biological fluids, such as body fluids from wounds, etc., for releasing the antimicrobial element at the surface.
Owner:NUCRYST PHARMA
Durable silver mirror with ultra-violet thru far infra-red reflection
InactiveUS20060141272A1Excellent Environmental DurabilityAvoid platingVacuum evaporation coatingSputtering coatingGalvanic cellFar-red
A durable highly reflective silver mirror characterized by high reflectance in a broad spectral range of about 300 nm in the UV to the far infrared (˜10000 nm), as well as exceptional environmental durability. A high absorptivity metal underlayer is used which prevents the formation of a galvanic cell with a silver layer while increasing the reflectance of the silver layer. Environmentally durable overcoat layers are provided to enhance mechanical and chemical durability and protect the silver layer from corrosion and tarnishing, for use in a wide variety of surroundings or climates, including harsh or extreme environments.
Owner:LAWRENCE LIVERMORE NAT SECURITY LLC
Hydrogen generation system
The present invention provides a system for generating hydrogen gas in an aqueous solution based electrolytic or galvanic cell wherein the cathode is made form aluminum or an aluminum alloy. In a preferred arrangement the cell is a galvanic cell and cathode is made from aluminum or aluminum alloy and the anode is made from magnesium or magnesium alloy.
Owner:NAT RES COUNCIL OF CANADA
Cylindrical structure fuel cell
A galvanic cell structure is provided. The galvanic cell structure includes an outer cylinder featuring air inlets, a cathode, an anode, a membrane separating the cathode from the anode, and an inner cylinder featuring fluid inlets that may provide a volume for storing and / or transferring fluid for use in the galvanic cell.
Owner:GENERAL ELECTRIC CO
On-demand hydrogen gas generation device having gas management system
The present disclosure generally relates to an on-demand hydrogen gas generation device, suitable for use in a fuel cell, which utilizes water electrolysis, and more particularly galvanic cell corrosion, and / or a chemical hydride reaction, to produce hydrogen gas. The present disclosure additionally relates to such a device that comprises a switching mechanism that has an electrical current passing therethrough and that repeatedly and reversibly moves between a first position and a second position when exposed to pressure differential resulting from hydrogen gas generation, in order to (1) alter the rate at which hydrogen gas is generated, such that hydrogen gas is generated on an as-needed basis for a fuel cell connected thereto, and / or (2) ensure a substantially constant flow of hydrogen gas is released therefrom. The present disclosure additionally or alternatively relates to such an on-demand hydrogen gas generation device that comprises a gas management system designed to maximize the release or evolution of hydrogen gas, and in particular dry hydrogen gas, therefrom once it has been formed, thus maximizing hydrogen gas output. The present disclosure is still further directed to a fuel cell comprising such an on-demand hydrogen gas generation device, and in particular a fuel cell designed for small-scale applications.
Owner:ROVCAL
Biobased microbattery
InactiveUS6994934B2Electrode carriers/collectorsActive material electrodesGalvanic cellHydroquinone Compound
A galvanic cell having a cathode, an anode, and an electrolyte. The cathode and anode each have vesicles, an electroactive species encapsulated into the vesicles, a conducting substrate, and functionalized tethers immobilizing the vesicles to the substrates. The electrolyte is in contact with both conducting substrates. At least some of the vesicles contain benzoquinone and / or hydroquinone.
Owner:THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
Sale and storage packaging for zinc-air cells
A packaging for galvanic cells including a carrier; a rotatable insert arranged on the carrier, wherein the rotatable insert has blisters to accommodate a plurality of the galvanic cells and the carrier has an opening to withdraw one of the cells from the insert; and a cover, arranged such that the insert is arranged between the carrier and the cover, the carrier and the cover being sealed together such that the insert is free to rotate, wherein the cover has an opening to accommodate the insert, and the carrier has a securable tab that allows withdrawal of one of the cells from the insert.
Owner:VARTA MICROBATTERY
Bioelectric implant and method
InactiveUS20100292756A1Enhancing tissue healingImprove abilitiesInternal electrodesExternal electrodesChemical reactionGalvanic cell
Bioelectric implants are provided in three distinct embodiments, namely a bone / tissue anchor, a suture construction, and a plate. The bioelectric implants function in dual capacities as both fixation devices, and as galvanic cells for the production of electrical energy used for therapeutic purposes in tissue regeneration and healing. The bioelectric anchor may take the general form of a screw or pin having a hollow interior or cavity that extends through the body of the anchor. A coating can be applied to the cavity to form the anode portion of the galvanic cell. The outer surface of the anchor serves as a cathode. Bodily fluids and tissue act as an electrolyte to facilitate the chemical reactions necessary for the galvanic cell. For the suture construction, one or more strands of material are the cathode, and one or more strands of peripheral surrounding material act as the anode. Bodily fluids / tissue in contact with the suture act as an electrolyte. The bioelectric plate can be used in combination with the bioelectric anchor to supplement delivery of electrical energy. The plate has anode and cathode portions also making it a source of electrical energy.
Owner:INGENIUM
Cathode material for a lithium-sulfur battery
InactiveUS20130292613A1Increase contactImprove distributionElectrode melt handlingConductive materialSulfurGalvanic cell
A method for producing a cathode material for a cathode of a galvanic cell, such as a lithium or natrium sulfur cell. In order to improve the electric and ionic conductivity, the sulfur accessibility and utilization, elemental sulfur, at least one electrically conductive component and a solvent or a solvent mixture are mixed in method step a), the elemental sulfur being completely dissolved in the solvent or in the solvent mixture, and the solvent or solvent mixture is removed in a method step b).
Owner:ROBERT BOSCH GMBH
Casing slip joint
A casing slip joint has been invented that has a first tubular casing member disposed around and releasably connected to a second casing member, the second casing member within and surrounded by the first casing member. Self-destructive shear screws according to the present invention releasably hold the first casing member to the second casing member. In one aspect, a shear screw according to this invention has an outer shear screw with a central recess and an inner member therein. In one aspect the outer shear screw is made of one metal and the inner screw is made of another so that contact by a well fluid sets up a galvanic cell that produces stress corrosion cracking in the outer shear screw that weakens it and / or destroys it. The propagation of such cracks is facilitated by placing one or more notches or recesses in the body of the components.
Owner:WEATHERFORDLAMB
Fuel cell closed structure
A galvanic cell with a closed structure is provided. The cell may include a galvanic cell unit having a metal hydride anode, separators positioned on opposite sides of the metal hydride anode, oxygen electrodes positioned adjacent to the separators on sides opposite to the metal hydride anode, insulator plates positioned in contact with the oxygen electrodes, an electrolyte in contact with any one or more of the metal hydride anode, oxygen electrodes, insulator plates, or separators, and a pressure vessel enclosing the galvanic cell unit.
Owner:GENERAL ELECTRIC CO
Gas scrubber and method related thereto
InactiveUS20070141430A1Gas treatmentHybrid cell detailsElectrical resistance and conductanceGalvanic cell
A galvanic cell utilizing a gas scrubber is provided. The galvanic cell may include a galvanic cell unit and a gas scrubber comprising an active material layer, a resistance coil in contact with the active material layer, a first shutter positioned between the active material layer and ambient air, a second shutter may be positioned between the galvanic cell unit and the active material layer.
Owner:GENERAL ELECTRIC CO
On-demand hydrogen gas generation device
The present disclosure generally relates to an on-demand hydrogen gas generation device, suitable for use in a fuel cell, which utilizes water electrolysis, and more particularly galvanic cell corrosion, and / or a chemical hydride reaction, to produce hydrogen gas. The present disclosure additionally relates to such a device that comprises a switching mechanism that has an electrical current passing therethrough and that repeatedly and reversibly moves between a first position and a second position when exposed to pressure differential resulting from hydrogen gas generation, in order to (1) alter the rate at which hydrogen gas is generated, such that hydrogen gas is generated on an as-needed basis for a fuel cell connected thereto, and / or (2) ensure a substantially constant flow of hydrogen gas is released therefrom. The present disclosure additionally or alternatively relates to such an on-demand hydrogen gas generation device that comprises a gas management system designed to maximize the release or evolution of hydrogen gas, and in particular dry hydrogen gas, therefrom once it has been formed, thus maximizing hydrogen gas output. The present disclosure is still further directed to a fuel cell comprising such an on-demand hydrogen gas generation device, and in particular a fuel cell designed for small-scale applications.
Owner:ROVCAL
Iontophoretic fluid delivery device
InactiveUS7047069B2The process is fast and accurateReduce polarizationElectrotherapyMedical devicesElectrical resistance and conductanceGalvanic cell
A low cost, accurate, single use, disposable, iontophoretic fluid delivery device having cationic and anionic chambers separated by container structure and arranged to promote a flow of treatment ions into a body. The device desirably uses rugged minibatteries safely to provide increased electromotive force to the ion transfer process compared to galvanic cells having electrolyte matched to a human body's electrolyte. Minibatteries may be located in one or both cationic and anionic chambers, and / or attached to structure of a container outside the chambers. A shunt resistance may be arranged in a parallel circuit to the body to control delivery of a beneficial agent in any amount between 1 mAmp-min to 500 mAmp-min, or more. Substrates, located in the chambers and adapted to hold electrolyte or treatment drugs, may be electrically conductive to resist polarization of the chemicals near a conducting terminal. Cationic and anionic chambers may be made having different sizes and / or shapes to facilitate placement of treatment drugs into the correct chamber.
Owner:ACTIVATEK
Bipolar membrane
InactiveUS20070141456A1Electrolyte holding meansFuel and primary cellsGalvanic cellMembrane configuration
The embodiments of the present invention relate to a membrane assembly for use in a galvanic cell, the membrane assembly comprising an anionic layer in contact with an electrolyte base, a cationic layer in contact with an electrolyte acid and an intermediate layer separating the anionic layer and cationic layer.
Owner:GENERAL ELECTRIC CO
Galvanic cell
ActiveUS20060194108A1Easy to installIncreased functional reliabilityLarge-sized flat cells/batteriesFinal product manufactureGalvanic cellElectrical and Electronics engineering
A battery having a housing assembled from multiple parts, of which one housing part is implemented like a vessel having an initially open front side and the other housing part is a closure part, which closes the vessel-like housing part on its initially open front side, and having at least one first and at least one second electrode, each of which is formed by a planar material, of which the first electrode is electrically connected to an electrically conductive housing part of the battery, while the second electrode is electrically connected to an electrically conductive contact, which is electrically insulated from the remaining housing, the battery comprising a molded part which is provided with at least one first recess for receiving and positioning at least one section of the first electrode or the first electrodes at a time.
Owner:LITRONIK BATTERIETECHNOLOGIE GMBH
On-demand hydrogen gas generation device with pressure-regulating switch
The present disclosure generally relates to an on-demand hydrogen gas generation device, suitable for use in a fuel cell, which utilizes water electrolysis, and more particularly galvanic cell corrosion, and / or a chemical hydride reaction, to produce hydrogen gas. The present disclosure additionally relates to such a device that comprises a switching mechanism that has an electrical current passing therethrough and that repeatedly and reversibly moves between a first position and a second position when exposed to pressure differential resulting from hydrogen gas generation, in order to (1) alter the rate at which hydrogen gas is generated, such that hydrogen gas is generated on an as-needed basis for a fuel cell connected thereto, and / or (2) ensure a substantially constant flow of hydrogen gas is released therefrom. The present disclosure additionally or alternatively relates to such an on-demand hydrogen gas generation device that comprises a gas management system designed to maximize the release or evolution of hydrogen gas, and in particular dry hydrogen gas, therefrom once it has been formed, thus maximizing hydrogen gas output. The present disclosure is still further directed to a fuel cell comprising such an on-demand hydrogen gas generation device, and in particular a fuel cell designed for small-scale applications.
Owner:ROVCAL
Durable silver mirror with ultra-violet thru far infra-red reflection
InactiveUS7838134B2Excellent Environmental DurabilityAvoid platingVacuum evaporation coatingSputtering coatingGalvanic cellUltraviolet
A durable highly reflective silver mirror characterized by high reflectance in a broad spectral range of about 300 nm in the UV to the far infrared (˜10000 nm), as well as exceptional environmental durability. A high absorptivity metal underlayer is used which prevents the formation of a galvanic cell with a silver layer while increasing the reflectance of the silver layer. Environmentally durable overcoat layers are provided to enhance mechanical and chemical durability and protect the silver layer from corrosion and tarnishing, for use in a wide variety of surroundings or climates, including harsh or extreme environments.
Owner:LAWRENCE LIVERMORE NAT SECURITY LLC
Protective housing for a galvanic cell in a motor vehicle
ActiveUS20090236161A1Avoid damageSimple designElectric devicesCell temperature controlMobile vehicleGalvanic cell
A protective housing (1) for a galvanic cell in a motor vehicle four side walls (2a, 2b, 3a) that form a lateral enclosure for a receptacle space for the galvanic cell. A base and a cover (4) extend across the lateral enclosure of the receptacle space. A cover cross member (8) is attached to the cover (4) and projects out beyond two opposed side walls (2a, 2b) for connection to a shell of the motor vehicle so that the protective housing (1) is suspended in a rotationally fixed fashion in the motor vehicle.
Owner:DR ING H C F PORSCHE AG
Battery having temperature regulation
InactiveCN102696130ANo risk of damageEliminate local overheatingAir-treating devicesSmall-sized cells cases/jacketsGalvanic cellHeat exchanger
A battery (Ia.. Ie) having a housing (2) and a plurality of galvanic cells (3) arranged in the housing (2) is provided. In addition, a fan (5a..5c) is arranged in the housing (2) to create a fluid flow circulating inside the housing (2). According to the invention, a heat exchanger (6a..6e) having a forward flow (7) and a return flow (8) for a heat transfer medium, which lead out of the housing (2) is arranged in the flow path (A) of the fluid flow.
Owner:BRUSA ELECTRONICS AG
Degradable Mg-Zn-Y-Ca intravascular stent material and preparation method thereof
The invention relates to a degradable Mg-Zn-Y-Ca intravascular stent material and a preparation method thereof, which belong to the fields of design and manufacture of metal materials. The intravascular stent material is characterized by comprising the following chemical components in percentage by weight (wt%): Zn 1.00 to 4.00, Y 0.10 to 1.00, Ca 0.01 to 0.50 and the balance of Mg; the chemical components are subjected to sub-rapid solidification at (200+ / -10) K / S and heat treatment of heating at 320 to 420 DEG C and heat preservation for 20 to 30h; and the texture characteristic of the intravascular stent material is that: even and fine spherical quasicrystalline phases Mg3YZn6 are dispersed and distributed on an alpha-Mg matrix. The potential difference between the spherical quasicrystalline phases Mg3YZn6 and magnesium is lower so that the formation of a galvanic cell is restrained and galvanic corrosion is alleviated; the sphericity quasicrystal Mg3YZn6 has good corrosion resistance and can obviously enhance the corrosion resistant performance of magnesium alloy; and at the same time, the quasicrystal also has the characteristics of high hardness, low friction coefficient, low interface energy and the like and can greatly enhance the mechanical performance of the magnesium alloy.
Owner:TAIYUAN UNIV OF TECH
Composite steel structural plastic sandwich plate systems
InactiveUS6984452B2Solve the lack of ductilityReduce in quantityNon-magnetic metal hullsSynthetic resin layered productsStress concentrationComposite construction
Owner:INTELLIGENT ENG BAHAMAS
Galvanic unit, galvanic module, power storage system, electronic equipment, electric power system, and electric vehicle
ActiveCN104126236AThe attached state is stableFinal product manufactureSecondary cells charging/dischargingGalvanic cellElectrical battery
A galvanic module having a plurality of galvanic units arranged so that the principal surface of a galvanic cell and the surface of a heat-transfer plate held by a galvanic support body made from an insulating material face each other, the galvanic module being obtained by stacking the galvanic units. The galvanic units are positioned so that a facing arrangement is adopted for the galvanic support body made from an insulating material for holding the heat-transfer plate, as well as for the surface of the heat-transfer plate and the principal surface of the galvanic cell.
Owner:MURATA MFG CO LTD
Nonwoven fabric, fiber and galvanic cell
InactiveUS20060178070A1Easy to useEffectively and selectively useLayered productsCell component detailsGalvanic cellEngineering
A nonwoven fabric, in particular for use as a separator in batteries or galvanic cells, having functional fibers made of at least one fibrous material which intrinsically contains at least one substance that is chemically active or activatable in an alkaline medium. The substance is incorporated surface-actively exclusively in volumetric regions of the functional fibers whose surface areas are able to be acted upon by the medium. A fiber is made from the mentioned fibrous material. A galvanic cell contains this nonwoven fabric as a separator.
Owner:CARL FREUDENBERG KG
Battery array and process for controlling the state of charge of a battery array
InactiveUS20050052155A1High energyService life optimizedCircuit monitoring/indicationIndicating/monitoring circuitsElectricityGalvanic cell
A battery array is provided for connection to an electric load as well as to a battery charger. A process for controlling the state of charge of a battery array is also provided. The energy needed to supply an electric device not connected to the electric network is taken from a battery, which is composed of a plurality of galvanic cells connected in series. The energy that can be supplied by such a series-connected array, a so-called battery line, is limited for safety reasons. Moreover, it is difficult to determine the state of charge, because the calibration points necessary for the determination of the state of charge, namely, the two states of charge “full” and “empty,” are reached by such a series-connected array only rarely if ever. A battery array that has a plurality of series-connected arrays connected in parallel, whose states of charge are estimated separately is provided. The corresponding process controls the state of charge of the battery array, in which the individual series-connected arrays are charged and discharged in a preset sequence.
Owner:DRAGER SAFETY
Device and method for transporting galvanic cells
InactiveUS20170155103A1Easy to operateInhibition releaseFuel cells disposal/recyclingBattery isolationFire protectionGalvanic cell
An apparatus and method for transporting used, damaged, or defective galvanic cells while impeding and combating safety-critical states of the galvanic cells, in particular lithium-ion-based cells and / or lithium-ion polymer cells, includes an outer container, which defines a space, an inner container being arranged in the space. The inner container has spacers in order to maintain a distance from the bottom and inner faces of the outer container, an accommodating container for accommodating at least on galvanic cell being arranged in the inner container, free intermediate spaces being filled with a fire protection agent composed of inert, non-conductive, non-flammable, absorbent hollow glass granular material.
Owner:GENIUS PATENTVERWERTUNG
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