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1499results about "Hybrid capacitor separators" patented technology
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Protected active metal electrode and battery cell structures with non-aqueous interlayer architecture
ActiveUS7282295B2Avoid harmful reactionsFinal product manufactureElectrode carriers/collectorsMetal electrodesBattery cell
Owner:POLYPLUS BATTERY CO INC
Protected active metal electrode and battery cell structures with non-aqueous interlayer architecture
ActiveUS20050175894A1Avoid harmful reactionsHybrid capacitor separatorsHybrid capacitor electrolytesMetal electrodesBattery cell
Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and / or a variety electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.
Owner:POLYPLUS BATTERY CO INC
Flexible asymmetric electrochemical cells using nano graphene platelet as an electrode material
InactiveUS20110183180A1Excellent specific capacitanceLarge specific surface areaElectrochemical generatorsHybrid capacitor separatorsPlateletGraphene
A flexible, asymmetric electrochemical cell comprising: (A) A sheet of graphene paper as first electrode comprising nano graphene platelets having a platelet thickness less than 1 nm, wherein the first electrode has electrolyte-accessible pores; (B) A thin-film or paper-like first separator and electrolyte; and (C) A thin-film or paper-like second electrode which is different in composition than the first electrode; wherein the separator is sandwiched between the first and second electrode to form a flexible laminate configuration. The asymmetric supercapacitor cells with different NGP-based electrodes exhibit an exceptionally high capacitance, specific energy, and stable and long cycle life.
Owner:NANOTEK INSTR GRP LLC
Aqueous polyvinylidene fluoride composition
ActiveUS20100304270A1Dry fastUseful electrodeLiquid electrolytic capacitorsConductive materialInterconnectivityPolyvinylidene difluoride
The invention relates to an aqueous fluoropolymer, and preferably polyvinylidene fluoride (PVDF), composition for manufacturing electrodes for use in non-aqueous-type electrochemical devices, such as batteries and electric double layer capacitors. The composition contains aqueous PVDF binder, and one or more powdery electrode-forming materials. In one embodiment, the composition is free of fluorinated surfactant In another embodiment, one or more fugitive adhesion promoters are added. The electrode formed from the composition of the invention exhibits interconnectivity and irreversibility that is achieved from the use of aqueous PVDF binder.
Owner:ARKEMA INC
Electronic component separator and method for producing the same
InactiveUS20050208383A1Improve reliabilityImprove machinabilityHybrid capacitor separatorsCell seperators/membranes/diaphragms/spacersLithiumElectronic component
The present invention provides a separator that, when used in a lithium ion secondary battery, polymer lithium secondary battery, aluminum electrolytic capacitor or electric double-layer capacitor, offers desired levels of various practical characteristics, undergoes minimal heat shrinkage even when overheated, and exhibits high reliability and excellent workability. The electronic component separator proposed by the present invention comprises a porous base made of a substance having a melting point of 180° C. or above, and a resin structure provided on at least one side of and / or inside the porous base, and the porous base and / or resin structure contains filler grains.
Owner:TOMOEGAWA PAPER CO LTD
Power storage device
ActiveUS20130224562A1Primary cell to battery groupingHybrid capacitor separatorsElectrical and Electronics engineeringPower storage
To provide a sheet-like power storage device which can be curved or bent in at least one axis direction. A power storage device includes a power storage element including a plurality of flexible sheet-like positive electrodes each having one end portion fixed to a positive electrode tab; a plurality of flexible sheet-like negative electrodes each having one end portion fixed to a negative electrode tab; and a plurality of flexible sheet-like separators. The positive electrodes and the negative electrodes are alternately stacked so as to overlap with each other with the separator interposed therebetween. The power storage element is sealed in a flexible exterior body.
Owner:SEMICON ENERGY LAB CO LTD
Supercapacitor with high energy density
InactiveUS6762926B1Sufficient energy densityLow costHybrid capacitor separatorsMultiple fixed capacitorsCapacitanceHigh energy
The energy content of supercapacitor is determined by its capacitance value and working voltage. To attain a high capacitance and a high voltage, several pieces of electrodes and separators are spirally wound with edge sealing to form a bipolar supercapacitor in cylindrical, oval or square configuration. While the winding operation effectively provides a large surface area for high capacitance, the bipolar packaging instantly imparts a unitary roll a minimum working voltage of 5V on using an organic electrolyte. The bipolar roll is a powerful building block for facilitating the assembly of supercapacitor modules. Using containers with multiple compartments, as many bipolar rolls can be connected in series, in parallel or in a combination of the two connections to fabricate integrated supercapacitors with high energy density as required by applications.
Owner:GAINIA INTELLECTUAL ASSET SERVICES
Protected lithium electrodes having a porous electrolyte interlayer and associated battery cells
ActiveUS20140170465A1Avoid harmful reactionsHybrid capacitor separatorsHybrid capacitor electrolytesBattery cellMetal
Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and / or a variety electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.
Owner:POLYPLUS BATTERY CO INC
Oriented Multilayer Porous Film
PendingUS20180043656A1Improve conductivityImprove insulation effectHybrid capacitor separatorsElectrolytic capacitorsFiltrationLithium sulfur
Provided is an oriented multilayer porous film comprising at least one layer comprising: a heat, solvent, and degradation resistant matrix polymer; a plurality of interconnecting pores; and a porosity less than 90%. The film is made by a dry and / or wet method, with its multilayer structure constructed by coextrusion, lamination, and coating. The film of this disclosure finds a wide range of applications as a permselective medium for use in energy harvesting and storage, filtration, separation and purification of gases and fluids, CO2 and volatile capture, electronics, devices, structural supports, packaging, labeling, printing, clothing, drug delivery systems, bioreactor, and the like. The film is preferably used as a separator of lithium-ion, lithium-sulfur, lithium-air, metal-air, and nonaqueous electrolyte batteries.
Owner:LISO PLASTICS L L C
Printable Composition for an Ionic Gel Separation Layer for Energy Storage Devices
InactiveUS20140017557A1Low vapor pressureHybrid capacitor separatorsHybrid capacitor electrolytesIonPolyvinylidene fluoride
Representative embodiments provide a composition for printing a liquid or gel separator utilized to separate and space apart first and second conductors or electrodes of an energy storage device, such as a battery or a supercapacitor. A representative composition comprises a plurality of particles, typically having a size (in any dimension) between about 0.5 to about 50 microns; a first, ionic liquid electrolyte; and a polymer or polymeric precursor. In another representative embodiment, the plurality of particles comprise diatoms, diatomaceous frustules, and / or diatomaceous fragments or remains. Another representative embodiment further comprises a second electrolyte different from the first electrolyte; the plurality of particles are comprised of silicate glass; the first and second electrolytes comprise zinc tetrafluoroborate salt in 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid; and the polymer comprises polyvinyl alcohol (“PVA”) or polyvinylidene fluoride (“PVFD”). Additional components, such as additional electrolytes and solvents, may also be included.
Owner:NTHDEGREE TECH WORLDWIDE
Electric double layer capacitor and process for its production
InactiveUS6906911B2Increase capacitance densityMaintained satisfactorilyHybrid capacitor separatorsHybrid capacitor electrodesEngineeringElectric double-layer capacitor
An electric double layer capacitor includes, contained in a casing, an electrolyte, a positive electrode and a negative electrode each being an electrode containing carbon black, to form an electric double layer at the interface with the electrolyte, and a separator interposed between the positive electrode and the negative electrode. At least one electrode of the positive electrode and the negative electrode has protruded portions or bent portions formed continuously in the height direction against the bottom face of the casing. Further, a space due to the height of the protruded portions or the bent portions is formed between the at least one electrode and the separator.
Owner:MITSUBISHI ELECTRIC CORP +1
Heat resisting separator having ultrafine fibrous layer and secondary battery having the same
InactiveUS20100304205A1High suppression characteristicsImprove ionic conductivityHybrid capacitor separatorsProtecting/adjusting hybrid/EDL capacitorPolyolefinFuel cells
A polyolefin separator having an heat-resistant ultrafine fibrous layer and a secondary battery using the same, in which the separator has a shutdown function, low thermal contraction characteristics, thermal endurance, excellent ionic conductivity, excellent cycling characteristics at the time of battery construction, and excellent adhesion with an electrode. The present N invention adopts a very simple and easy process to form an ultrafine fibrous layer through an electrospinning process, and at the same time, to remove solvent and to form pores. Accordingly, the separator of the present invention is useful particularly for electrochemical devices used in a hybrid electric automobile, an electric automobile, and a fuel cell automobile, requiring high thermal endurance and thermal stability.
Owner:KOREA INST OF SCI & TECH
Multi-component composite film method for preparing the same
InactiveUS7470488B2Improve wettabilityImprove conductivitySolid electrolyte cellsSolid electrolyte fuel cellsPolymer electrolytesPolymer science
The present invention provides a multi-component composite film comprising a) polymer support layer; and b) porous gellable polymer layer which is formed on one side or both sides of the support layer of a), wherein the support film of a) and the gellable polymer layer of b) are unified without the interface, a method for preparing the same, and a polymer electrolyte system applied the same.
Owner:LG ENERGY SOLUTION LTD +1
Multilayer porous membrane and production method thereof
ActiveUS20100285348A1Improve heat resistanceImprove permeabilityHybrid capacitor separatorsFinal product manufacturePolyolefinPorous layer
The present invention provides a multilayer porous membrane having both high safety and practicality, especially as a separator for a non-aqueous electrolyte battery and comprising a porous layer containing an inorganic filler and a resin binder on at least one surface of a polyolefin resin porous membrane, wherein the porous layer simultaneously satisfies the following (A) to (C):(A) the inorganic filler has an average particle diameter of 0.1 μm or more and 3.0 μm or less,(B) a ratio of an amount of the resin binder to a total amount of the inorganic filler and the resin binder is 1% or more and 8% or less in terms of volume fraction, and(C) a ratio of a layer thickness of the porous layer to a total layer thickness is 15% or more and 50% or less.
Owner:ASAHI KASEI E-MATERIALS CORPORATION
Electrochemical double layer capacitors including improved nanofiber separators
Electrochemical double layer capacitors are disclosed that advantageously include separators having at least one porous layer of nanofibers having average diameters of between about 50 nm and about 1000 nm that provide improved combinations of reduced thickness, barrier against the development of soft short-circuits and low ionic resistance as compared with known capacitor separators.
Owner:DUPONT SAFETY & CONSTR INC
Energy storage device cell and control method thereof
ActiveUS20090148759A1Inhibit deteriorationLittle deteriorationCapacitor and primary/secondary cellsFinal product manufactureLithiumActivated carbon
An energy storage device cell includes: a capacitor cathode including a capacitor cathode collector foil, and a capacitor cathode electrode layer formed on one face of the capacitor cathode collector foil and containing microparticles of activated carbon; a first separator; a common anode including an anode collector foil having a through-hole, and an anode electrode layer formed on one face of the anode collector foil; a second separator; and a battery cathode including a battery cathode collector foil, and a battery cathode electrode layer formed on one face of the battery cathode collector foil and containing particles of a lithium-containing metal compound. The first separator is sandwiched by the capacitor cathode electrode layer and the anode electrode layer. The second separator is sandwiched by the anode collector foil and the battery cathode electrode layer.
Owner:MITSUBISHI ELECTRIC CORP
Separator for electrochemical device, electrode for electrochemical device, and electrochemical device
ActiveUS20100015530A1Improve reliabilityImprove load characteristicsHybrid capacitor separatorsHybrid capacitor electrodesPhysical chemistryPolyresin
A separator for an electrochemical device of the present invention includes a porous film including: a filler; an organic binder; and at least one resin selected from resin A that has a melting point of 80 to 140° C. and resin B that absorbs a non-aqueous electrolyte and swells upon heating and whose swelling degree increases with increasing temperature, and the filler contains boehmite having a secondary particle structure in which primary particles are connected.
Owner:MAXELL HLDG LTD
Conductive composition and production method thereof, antistatic coating material, antistatic coating, antistatic film, optical filter, and optical information recording medium, and capacitors and production method thereof
ActiveUS20060076541A1Improve conductivityImprove heat stabilityHybrid capacitor separatorsHybrid capacitor electrolytesConductive polymerSolvent
A conductive composition comprises a π conjugated conductive polymer, a polyanion, and a hydroxy group-containing aromatic compound containing two or more hydroxy groups. An antistatic coating material comprises the conductive composition and a solvent. An antistatic coating is produced by applying the antistatic coating material. A capacitor comprises an anode composed of a porous valve metal body; a dielectric layer formed by oxidizing a surface of the anode; and a cathode formed on the dielectric layer, wherein the cathode has a solid electrolyte layer comprising the conductive composition.
Owner:SHIN-ETSU POLYMER CO LTD
Organic/inorganic composite porous isolating membrane, preparation method thereof and electrochemical device
ActiveCN103441230AImprove breathabilityImprove conductivityHybrid capacitor separatorsCell seperators/membranes/diaphragms/spacersPorous coatingInorganic particle
Owner:DONGGUAN AMPEREX TECH +1
Aramid thin sheet material and electrical/electronic parts using the same
InactiveUS20070167101A1High strengthMaintain good propertiesHybrid capacitor separatorsPlastic/resin/waxes insulatorsInternal resistanceAramid
The invention provides an aramid thin sheet material comprising two components of aramid staple fibers and fibrillated aramid, or said two components and aramid fibrid, in particular, characterized by satisfying both of the following expressions (1) and (2): [internal resistance] (μm)≦250 (μm) expression (1) [Oken-type gas permeability] (sec / 100 cm3)≧0.5 (sec / 100 cm3) expression (2) wherein the [internal resistance] is a resistance value calculated by the following expression (3): [internal resistance ](μ m)=[electrical conductivity of electrolyic solution][electrical conductivityof electrolyticsolution-injected thin sheet material]×[thickness of the thinsheet material](μ m).expression (3)
Owner:DUPONT TEIJIN ADVANCED PAPERS JAPAN
Lithium metal foil for battery or capacitor
InactiveUS20090246626A1Easy cutting propertyHigh productElectrode manufacturing processesFinal product manufactureLithium metalEngineering
A lithium ion capacitor includes, as a lithium ion supply source, a lithium metal foil for batteries or capacitors. A current collector 4 and a separator 3 formed of a paper or resin nonwoven fabric are preliminarily pressure-bonded and integrated to opposite surfaces of a lithium metal foil 1 for batteries or capacitors.
Owner:SUBARU CORP
Method of making a multi-electrode double layer capacitor having single electrolyte seal and aluminum-impregnated carbon cloth electrodes
InactiveUS20010020319A1Reduces transverse resistanceReduce contact resistanceDouble layer capacitorsPrinted circuit manufactureElectrolytic agentMetal
<heading lvl="0">Abstract of Disclosure< / heading> A method of making a double layer capacitor consists of the steps of: impregnating each of a plurality of carbon preforms with a metal; forming a plurality of current collector foils, each of the plurality of current collector foils having a tab portion and a paddle portion; forming a plurality of electrodes by positioning one of the plurality of carbon preforms against respective paddle portions of each of the plurality of current collector foils, wherein each of the plurality of electrodes comprises one of the plurality of current collector foils and one of the plurality of carbon preforms; stacking each of the plurality of electrodes such that tab portions of adjacent ones of the plurality of current collector foils are offset, thereby forming an electrode stack; interposing respective porous separator portions between each of the plurality of electrodes, wherein the porous separator portions function as electrical insulators between the adjacent ones of the plurality of electrodes preventing electrical shorting against each other; applying a modest constant pressure against the electrode stack; saturating the electrode stack with an electrolytic solution; and maintaining the electrode stack immersed within the electrolytic solution.
Owner:TESLA INC
Sheet for forming a polymer gelled electrolyte, a polymer gelled electrolyte using it, and a method for manufacture thereof
InactiveUS6114068AEasy to handleUniform thicknessHybrid capacitor separatorsHybrid capacitor electrolytesLithiumPolymer science
The present invention provides a unique fibrous sheet for forming a polymer gel electrolyte having ion conductivity, a unique polymer gel electrolyte using such a sheet, and a unique method for the manufacture thereof. More specifically, the present invention provides a unique fibrous sheet for forming a polymer gel electrolyte having excellent ion conductivity and suitable as an electrolyte for various electronic devices such as lithium primary batteries, lithium secondary batteries, and electric double layer capacitors, as well as a unique polymer gel electrolyte using such a sheet, and also a unique method for the manufacture thereof.
Owner:SONY CORP
Electrochemical device and method for production thereof
ActiveUS20090325058A1Improve securityImprove productivityHybrid capacitor separatorsElectrolytic capacitorsPorous layerMaterials science
An electrochemical device of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator. The separator includes a first porous layer composed mainly of a thermoplastic resin and a second porous layer composed mainly of insulating particles with a heat-resistant temperature of 150° C. or higher. The first porous layer is disposed to face the negative electrode.
Owner:MAXELL HLDG LTD
Wound electric double-layer capacitor
ActiveUS7881043B2Inhibit the electrochemical reaction processReduce degradationHybrid capacitor separatorsProtecting/adjusting hybrid/EDL capacitorElectrochemical responsePolymer capacitor
Owner:PANASONIC CORP
Energy storage devices and composite articles associated with the same
InactiveUS20080212261A1Hybrid capacitor separatorsHybrid capacitor electrolytesPolymer scienceHigh energy
Embodiments of the invention relate to energy storage devices, e.g., capacitors and batteries, that may include a composite article of elongated conductive structures embedded in a polymer matrix. In some embodiments, a liquid containing ionic species may be dispersed within the polymer matrix of the article. The liquid may contact the elongated conductive structures within the polymer matrix. When the composite article is used as an energy storage device, the large surface area at the interface between the elongated conductive structures and the liquid can provide high energy storage. Embodiments of the invention enable storing energy using a composite article that exhibits both high and low temperature stability, high cyclic repeatability, and mechanical flexibility. The composite article can also be non-toxic, biocompatible and environmentally friendly. Thus, the composite article may be useful for a variety of energy storage applications, such as in the automotive, RFID, MEMS and medical fields.
Owner:RENESSELAER POLYTECHNIC INST
Electrode and electrochemical element employing the same
ActiveUS20050042450A1Increase capacityInsufficient improvementMaterial nanotechnologyFinal product manufactureConductive polymerCarbon nanotube
The invention provides an electrode 1 comprising a collector 1a with electron conductivity and an electrode active material-containing layer 1b with electron conductivity formed on the collector 1a, wherein the electrode active material-containing layer 1b includes conductive polymer-covered carbon nanotubes.
Owner:TDK CORPARATION
Polymeric restraints for containing an anode in an electrolytic capacitor from high shock and vibration conditions
ActiveUS7092242B1Improve reliabilityImprove securityHybrid capacitor separatorsLiquid electrolytic capacitorsVibration controlElectrolytic capacitor
An electrolytic capacitor comprising a plurality of polymeric structures molded about the periphery of the anode pellet is described. The polymeric structures contact between a weld strap surrounding the butt seam between mating “clamshell” casing portions and the anode pellet sidewall. That way, the anode pellet is restrained from moving along both an x- and y-axes inside the casing. Having the cathode active material contacting the opposed major casing sidewalls being in a closely spaced relationship with the anode pellet through an intermediate separator prevents movement along the z-axis. The resulting capacitor is particularly well suited for use in high shock and vibration conditions.
Owner:WILSON GREATBATCH LTD
Electrochemical device and production method thereof
InactiveUS20080280208A1InhibitionPrevent movementHybrid capacitor separatorsHybrid capacitor electrodesElectrochemistryElectrolyte
An electrochemical device including a first anode, a first cathode, a single continuous separator provided between the first anode and the first cathode and folded so as to be arranged on the opposite side of the first anode to the first cathode and on the opposite side of the first cathode to the first anode, and an electrolyte in contact with the separator, the first anode and the first cathode, wherein the separator has a shape that surrounds the periphery of the first anode or the first cathode by being folded in the same direction at two folds consecutive from one end of the separator.
Owner:TDK CORPARATION
Electrodes having multi layered structure and supercapacitor including the same
InactiveUS20120134072A1Lower internal resistanceHigh capacitanceHybrid capacitor separatorsNon-insulated conductorsActivated carbonCapacitance
Owner:SAMSUNG ELECTRO MECHANICS CO LTD
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