Abstract: An anode of a lithium battery includes a composite film, the composite film includes a carbon nanotube film structure and a plurality of nanoscale tin oxide particles dispersed therein. A lithium battery includes at least a cathode, an electrolyte, and the anode mentioned above. A charge/discharge capacity of the lithium battery using the anode can be improved.

Abstract: The present invention concerns an electrochemical device comprising a cathode and an anode separated from each other by a separator, the battery further comprising two current collectors so that the anode and cathode are each arranged between the separator and a current collector, characterized in that at least one of the two current collectors is made of an at least partially amorphous material comprising at least one metallic element.

Abstract: Apparatus and techniques herein related battery plates. For example, a first battery plate can include a conductive silicon wafer. A first mechanical support can be located on a first side of the conductive silicon wafer. A first active material can be adhered to the first mechanical support and the first side of the conductive silicon wafer, the first active material having a first polarity. In an example, the battery plate can be a bipolar plate, such as having a second mechanical support located on a second side of the conductive silicon wafer opposite the first side, and a second active material adhered to the second mechanical support and the second side of the conductive silicon wafer, the second material having an opposite second polarity.

Abstract: Articles including an array of one-dimensional or three-dimensional nanopillar arrays disposed on a substrate and methods for the formation thereof. The methods can include filling a plurality of hollow nanopillars, which are supported on a substrate, with a first conductive material and removing the plurality of hollow nanopillars to leave a plurality of vertically-aligned, epitaxial nanopillars, comprising the first conductive material, on the substrate.

Abstract: An electrode material for a secondary battery, which realizes a lowered contact resistance between the electrode material and an active material layer, is provided. A collector (electrode material) includes: a substrate 1a including a metal foil; and a conductive material 1b, wherein the conductive material 1b contains a carbon black having a BET specific surface area of 300 m2/g or less and an attached amount of the carbon black per unit area on the surface of the substrate 1a is 400 mg/m2 or less.

Abstract: The non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte and a separator. The positive electrode includes a positive electrode mixture layer containing a positive electrode active material, a conductive polymer, an organic silane compound, a conductive assistant and a binder, the conductive polymer is polythiophene or a derivative thereof, and the content of the conductive polymer is 0.05 to 0.5 mass % with respect to the total mass of the positive electrode mixture layer.

Abstract: An electrode comprising a polyphosphazene cyclomatrix and particles within pores of the polyphosphazene cyclomatrix. The polyphosphazene cyclomatrix comprises a plurality of phosphazene compounds and a plurality of cross-linkages. Each phosphazene compound of the plurality of phosphazene compounds comprises a plurality of phosphorus-nitrogen units, and at least one pendant group bonded to each phosphorus atom of the plurality of phosphorus-nitrogen units. Each phosphorus-nitrogen unit is bonded to an adjacent phosphorus-nitrogen unit. Each cross-linkage of the plurality of cross-linkages bonds at least one pendant group of one phosphazene compound of the plurality of phosphazene compounds with the at least one pendant group of another phosphazene compound of the plurality of phosphazene compounds. A method of forming a negative electrode and an electrochemical cell are also described.

Abstract: In accordance with an example embodiment of the present invention, apparatus is provided comprising first and second electrodes, first and second current collectors, an electrolyte, and a first contact layer; wherein the electrolyte is configured to separate the first and second electrodes; and wherein the first contact layer is configured to form an electrical contact between the first current collector and the first electrode.

Abstract: A current collector which is suitable for discharging and charging at a large current density is provided. The present invention provides a current collector including a conductive substrate and a conductive resin layer provided on one side or both sides of the conductive substrate. The conductive resin layer contains a soluble nitrocellulose-based resin and a conductive material.

Abstract: A current collector with improved electrochemical stability having a conductive resin layer formed thereon is provided. The current collector 3 of the present embodiment is structured by forming a conductive resin layer 1 on at least one side of a conductive substrate 2. Here, the conductive resin layer 1 contains an acryl-based resin or a soluble nitrocellulose-based resin, and a conductive material. The current collector 3 has a maximum current response of 10 ?A/cm2 or lower, when the current response is measured under conditions that the current collector is placed in a nonaqueous electrolyte solution at an electrode potential of +3V to +4.5V versus a lithium reference electrode.

Abstract: A battery electrode with a pasting textile, fabric, or scrim made with an electrode grid (e.g., a stamped grid or expanded metal grid) coated in battery electrode and covered with pasting textile formed of a bonded, non-woven fiber web. The web is formed from one or more fibers with an average length greater than 20 ?m. In various embodiments, the web is formed from one or more spun, continuous fibers. The battery electrode may be made in a continuous process where multiple grids are formed in a single sheet, coated with electrode active material, and the scrim before being cut into individual electrodes.

Abstract: A method for manufacturing an electrode. To provide a particularly cost-effective method, which is able to provide a current collector layer that adheres well and is electrically well-connected, the method including: a) providing a layer having an active material; b) one-sided electrochemical deposition of a metallic material on the layer having the active material, thus forming a current collector layer having the metallic material; c) joining the product obtained in b) to another layer having an active material and to a contact element so that the current collector layer having the deposited metallic material is situated between two layers having an active material, and that the contact element for establishing contact is at least partially exposed and is in contact with the current collector layer having the deposited metallic material.

Abstract: An energy storage device can have a first graphite film, a second graphite film and an electrode divider ring between the first graphite film and the second graphite film, forming a sealed enclosure. The energy storage device may be compatible with an aqueous electrolyte or a non-aqueous electrolyte. A method of forming an energy storage device can include providing an electrode divider ring, a first graphite film and a second graphite film. The method can include pressing a first edge of the electrode divider ring into a surface of the first graphite film, and pressing a second opposing edge of the electrode divider ring into a surface of the second graphite film to form a sealed enclosure. The sealed enclosure may have as opposing surfaces the surface of the first graphite film and the surface of the second graphite film.

Abstract: A method for producing a porous aluminum foil of the present invention is characterized in that a porous aluminum film is formed on a surface of a substrate by electrolysis using a plating solution containing at least (1) a dialkyl sulfone, (2) an aluminum halide, and (3) a nitrogen-containing compound, and having a water content of 100 to 2000 ppm, and then the film is separated from the substrate. The nitrogen-containing compound is preferably at least one selected from the group consisting of an ammonium halide, a hydrogen halide salt of a primary amine, a hydrogen halide salt of a secondary amine, a hydrogen halide salt of a tertiary amine, and a quaternary ammonium salt represented by the general formula: R1R2R3R4N.X (R1 to R4 independently represent an alkyl group and are the same as or different from one another, and X represents a counteranion for the quaternary ammonium cation).

Abstract: A method of forming an electrode of a lithium ion secondary battery includes combining a binder and active particles to form a mixture, coating a surface with the mixture to form a coated article, translating the article along a first plane, cutting a first plurality of carbon fibers, each having a first average length, to form a second plurality of carbon fibers, each having a longitudinal axis and a second average length that is shorter than the first average length, inserting the second plurality of fibers into the mixture layer so that the longitudinal axis of each of at least a portion of the second plurality of fibers is not parallel to the first plane to form a preform, wherein the second plurality of fibers forms a truss structure disposed in three dimensions within the mixture layer, and heating the preform to form the electrode. An electrode is also disclosed.

Abstract: A negative electrode active material for an electric device. The negative electrode active material including an alloy having a composition formula SixTiyZnz, where (1) x+y+z=100, (2) 38?x<100, (3) 0<y<62, and (4) 0<z<62 in terms of mass percent.

Abstract: An object of the present invention is to provide a current collector which includes an aluminum alloy foil for electrode current collector, with high electrical conductivity and high strength after a drying process performed after application of an active material. According to the present invention, provided is a current collector including a conductive substrate and a resin layer provided on one side or both sides of the conductive substrate, wherein: the conductive substrate is an aluminum alloy foil containing 0.03 to 1.0 mass % (hereinafter mass % is referred to as %) of Fe, 0.01 to 0.3% of Si, 0.0001 to 0.2% of Cu, with the rest being Al and unavoidable impurities, an aluminum alloy foil after a final cold rolling having a tensile strength of 180 MPa or higher, a 0.2% yield strength of 160 MPa or higher, and an electrical conductivity of 58% IACS or higher; an aluminum alloy foil after performing a heat treatment at 120° C. for 24 hours, at 140° C. for 3 hours, or at 160° C.

Abstract: The present invention is to provide a transparent/translucent Li-ion battery. The transparent/translucent Li-ion battery comprises an anode, a cathode, and an electrolyte. The anode comprises an electrode material holder with inner structures, a current collector, and an anode material. The current collector is formed along the wall of the inner structures of the electrode material holder, and the anode material is deposited on the current collector, and filled within the inner structures. The cathode is fabricated with the similar method as the anode by using a cathode material. The electrode material holder with the inner structures can be a patterned glass or quartz slice with concave parts, or an anodized aluminum oxide film with channels. The transparent/translucent Li-ion battery of the present invention provides high transparency and electrical storage capacity.

Abstract: A nonaqueous electrolytic secondary battery and a positive electrode for a nonaqueous electrolytic secondary battery are provided. The positive electrode includes a positive electrode active material layer containing a positive electrode active material and a coupling agent represented by a general formula (1). The positive electrode active material includes lithium transition metal oxide particles. At least one rare-earth compound selected from the rare-earth compound group consisting of specific rare-earth hydroxides and specific rare-earth oxyhydroxides is fixed on the surfaces of the lithium transition metal oxide particles in a dispersed form.

Abstract: A negative electrode active material for an electric device, including an alloy having a composition formula SixZnyAlz, where x++y=100 , 26?x?47, 18?y?44, and 22?z?46 are satisfied.

Abstract: A power storage device which has high charge/discharge capacity and less deterioration in battery characteristics due to charge/discharge and can perform charge/discharge at high speed is provided. A power storage device includes a negative electrode. The negative electrode includes a current collector and an active material layer provided over the current collector. The active material layer includes a plurality of protrusions protruding from the current collector and a graphene provided over the plurality of protrusions. Axes of the plurality of protrusions are oriented in the same direction. A common portion may be provided between the current collector and the plurality of protrusions.

Abstract: The present invention provides a nanostructure on an upper surface of which a small-diameter carbon nanotube (CNT) is formed and which improves an adhesive strength between a substrate and the CNT while controlling an orientation of the CNT, and a method for manufacturing the nanostructure. The nanostructure includes a substrate 101, a porous layer 102 formed on the substrate 101 to have a fine pore, a fine pore diameter control layer 103 formed on the porous layer 102, and a carbon nanotube 701 formed to extend from the fine pore defined by the fine pore diameter control layer 103, and one end of the carbon nanotube is fixed by the fine pore diameter control layer 103. It is preferable that the substrate 101 and the fine pore diameter control layer 103 be electrically conductive. It is preferable that the porous layer 102 be an anode oxide film. It is preferable that a melting point of the fine pore diameter control layer 103 be 600° C. or higher.

Abstract: The invention relates to an electrode comprising (a) an electron collector containing one or more transition metals from the groups 4 to 12 of the Periodic Classification of the Elements, and (b) a material that is electrochemically active, present on the surface of the electron collector in the form of a nano-structured conversion layer containing nano-particles or agglomerates of said nano-particles, wherein the nano-particles have a mean diameter of between 1 and 1000 nm, preferably between 10 and 300 nm, wherein said electrochemically active material contains at least one compound of the transition metal or transition metals present in the electron collector, characterized by the fact that the electrode is a textile formed by metallic wires or fibers. The invention also relates to a half-accumulator and an accumulator containing such a textile electrode.

Abstract: A rechargeable battery is disclosed. In one embodiment, the battery includes: i) a first current collecting plate, ii) a plurality of electrode assemblies electrically connected in parallel with each other via the first current collecting plate, wherein each of the electrode assemblies comprises two opposing ends and an outer side formed between the two ends, and wherein the first current collecting plate is electrically connected to one of the two ends of the electrode assemblies and iii) a can configured to accommodate the first current collecting plate and the plurality of electrode assemblies, wherein the can comprises at least one non-linear portion, and wherein an inner surface of the non-linear portion faces the outer side of at least one electrode assembly.

Abstract: Thin-film solid state batteries architectures and methods of manufacture are provided. Architectures include solid-state batteries with one or more cathodes, electrolytes, anodes deposited onto a substrate. Architectures may be used for solid state lithium batteries. The various fabrication techniques may be used to create a solid state battery is millimeters thick or smaller. These thin-film batteries may be small, light, and have a high energy density.

Abstract: A primary electrochemical cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS2) and carbon particles. The cell is balanced so that the anode is in theoretical capacity excess (mAmp-hrs) compared to the theoretical capacity of the cathode. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added. The electrolyte comprises a lithium salt dissolved in organic solvent.

Abstract: A gas diffusion layer contains a substrate formed of a carbon containing material and a micro porous layer. The gas diffusion layer can be obtained by dispersing carbon black with a BET surface area of at most 200 m2/g, carbon nanotubes with a BET surface area of at least 200 m2/g and with an average outer diameter of at most 25 nm and a dispersion medium at a shearing rate of at least 1,000 seconds?1 and/or such that, in the dispersion produced, at least 90% of all carbon nanotubes have a mean agglomerate size of at most 25 ?m. The dispersion is applied to at least one portion of at least one side of the substrate, and the dispersion is dried.

Abstract: A lithium-ion battery includes a positive electrode having a first active material and a second active material and a negative electrode including a third active material. The second active material includes a lithiated form of a material that does not include electrochemically cyclable lithium in the as-provided state.

Abstract: A negative electrode used for a nonaqueous electrolyte solution battery having nonaqueous electrolyte solution containing lithium ion includes a metal carbon composite material. The metal carbon composite material has a porous carbon material having cavities, and a metal material made of metal to reversibly store or emit lithium ion. The metal material is arranged on a surface of the porous carbon material including inner surfaces of the cavities. The porous carbon material has a mass of 1-65 mass % when the metal carbon composite material is defined to have a mass of 100 mass %.

Abstract: Electrochemical cells having desirable electronic and ionic conductivities, and associated systems and methods, are generally described.

Abstract: The present invention relates to a multifunctional web for use in a lead-acid battery comprising natural fibres and heat-sealable fibres, the use of the multifunctional web in a lead-acid battery, a lead plate comprising a metal grid coated with a lead paste contacting the multifunctional web, a method of preparing the lead plate and a lead-acid battery assembly comprising the lead plate.

Abstract: A composition comprising at least one graphene-supported metal oxide monolith, said monolith comprising a three-dimensional structure of graphene sheets crosslinked by covalent carbon bonds, wherein the graphene sheets are coated by at least one metal oxide such as iron oxide or titanium oxide. Also provided is an electrode comprising the aforementioned graphene-supported metal oxide monolith, wherein the electrode can be substantially free of any carbon-black and substantially free of any binder.

Abstract: Provided is a technique to confirm the performance of the conductive resin layer of a current collector without actually preparing an electrode structure, a non-aqueous electrolyte battery, an electrical double layer capacitor, a lithium ion capacitor, or an electrical storage device, and to confirm the performance of the conductive resin layer easily with high accuracy by a non-destructive test. A current collector includes a conductive substrate and a resin layer possessing conductivity, the resin layer being formed on at least one side of the conductive substrate. The resin layer possessing conductivity contains a resin and a conductive material containing carbon as a main component. When the color tone of the surface of the resin layer possessing conductivity is specified with L*a*b* color system, L* is 60 or lower, a* is ?1.0 to 1.0, and b* is ?1.0 to 3.0.

Abstract: A nonaqueous electrolytic solution secondary battery includes an electrode body that contains a positive electrode and a negative electrode. An upper limit operating potential of the positive electrode is 4.5 V or more based on metallic lithium. The positive electrode includes a current collector and an active material layer formed on the current collector. The current collector includes a base material and a surface layer disposed on a surface of the base material. The surface layer is disposed at least in a region where the active material layer is not formed on the surface of the base material. The surface layer is formed of an aluminum material having an aluminum content of 99.85% by mass or more. The base material is formed of a conductive material having strength larger than strength of the surface layer.

Abstract: According to one embodiment, there is provided an electrode. The electrode includes an active material-containing layer and a current collector. The current collector includes first and second regions. The first region has a surface roughness Ra1. The second region has a surface roughness of Ra2. The active material-containing layer is supported by the second region. The surface roughness Ra1 of the first region is smaller than the surface roughness of Ra2 of the second region.

Abstract: An object of the present invention is to improve an adhesion between the surface of a conductive resin layer and an active material, which are provided to a current collector. Another object of the present invention is to improve a high rate characteristics or electrode lifetime of a non-aqueous electrolyte battery, an electrical double layer capacitor, a lithium ion capacitor and the like which uses the current collector. A current collector prepared by forming a resin layer possessing conductivity on a conductive substrate, is provided. A surface roughness Ra of the resin layer possessing conductivity is 0.1 ?m or higher and 1.0 ?m or lower. In addition, when a coating thickness of the resin layer possessing conductivity is taken as t [?m] and the average angle of inclination of the resin layer surface is taken as ?a [degree], (?)t+0.5??a?(?)t+10 is met.

Abstract: An electrode of an energy storage device with less deterioration by charge and discharge can be manufactured. In addition, an energy storage device which has large capacity and high endurance can be manufactured. A manufacturing method of an electrode of an energy storage device is provided in which a high-wettability regions and a low-wettability region are formed at a surface of a current collector, a composition containing silicon, germanium, or tin is discharged to the high-wettability regions and then baked to form separate active materials over a surface of the current collector. Thus, an electrode of an energy storage device with less deterioration due to charge and discharge can be manufactured.

Abstract: Provided are a substrate on which carbon nanotubes each having one end connected to the substrate can be formed at a high synthetic rate and from which the carbon nanotubes are less likely to be peeled off. The substrate is a substrate for forming the carbon nanotubes and includes a buffer layer 13 formed on at least one of surfaces of a substrate main body 14 and containing aluminum atoms and fluorine atoms. The carbon nanotube complex includes the substrate and a plurality of carbon nanotubes 11 each having one end connected to a surface of the buffer layer 13.

Abstract: Printed electronics are increasingly becoming an important industry, thus innovations to integrate the various components and processes would be very useful to expand this industry. Disclosed are innovational concepts that would be very useful to accelerate this industry. Webs of printed electronics, antennas, power sources (cells/batteries), and assembly substrates can be merged together to form a completed electronic assembly that could be, for example, in label form or in a stand alone electronic device.

Abstract: The present invention provides a positive electrode (30) for lithium secondary batteries, including: a barrier layer, having a conductive material and at least one type of water-insoluble polymer that is soluble in organic solvents but insoluble in water, as a binder; and a positive electrode active material layer, being a positive electrode active material layer (35) stacked on the barrier layer, and having a positive electrode active material and at least one type of aqueous polymer that is insoluble in organic solvents but soluble or dispersible in water, as a binder. A content of the water-insoluble polymer in the barrier layer is 55 to 85 mass % with respect to 100 mass % of a total amount of the conductive material plus the water-insoluble polymer.

Abstract: A lithium-ion battery and a lithium-ion battery electrode structure are disclosed. The lithium-ion battery electrode structure comprises a metal foil and a semiconductor nanowire matrix. The semiconductor nanowire matrix is disposed on the metal foil, and is doped with dopants.

Abstract: Printed electronics are increasingly becoming an important industry, thus innovations to integrate the various components and processes would be very useful to expand this industry. Disclosed are innovational concepts that would be very useful to accelerate this industry. Webs of printed electronics, antennas, power sources (cells/batteries), and assembly substrates can be merged together to form a completed electronic assembly that could be, for example, in label form or in a stand alone electronic device.

Abstract: A non-aqueous battery with improved volume energy density and enhanced load characteristics is made available even when using olivine-type lithium phosphate as a positive electrode active material. The non-aqueous electrolyte battery of the present invention is provided with a positive electrode (1) containing lithium iron phosphate as a positive electrode active material, a negative electrode (2), and a non-aqueous electrolyte (4). In the positive electrode (1), a positive electrode active material-containing layer that is made of the positive electrode active material, a conductive agent, and a binder agent is formed on a positive electrode current collector. The positive electrode current collector has a thickness of less than 20 ?m and its surface that is in contact with the positive electrode active material-containing layer has a mean surface roughness Ra of greater than 0.026.

Abstract: A composition for use in an electrochemical cell is disclosed wherein the composition includes a clean metal substantially free of impurities and a layer of protective material in contact with the clean metal, wherein the protective material comprises a protective metal component, a multi-component material, a multi-layered component or a combination thereof. Further disclosed is an electrochemical cell including a metal film comprising a clean metal substantially free of impurities. The electrochemical cell may further include an electrolyte and a layer of protective material disposed between the electrolyte and the metal film, wherein the protective material comprises a protective metal component, a multi-component material, a multi-layered component or a combination thereof.

Abstract: A composition for use in an electrochemical cell is disclosed wherein the composition includes a clean metal substantially free of impurities and a layer of protective material in contact with the clean metal. Further disclosed is an electrochemical cell including a metal film comprising a clean metal substantially free of impurities. The electrochemical cell may further include an electrolyte and a layer of protective material disposed between the electrolyte and the metal film. A process for manufacturing an electrode is further disclosed including preparing a metal film comprising a clean metal substantially free of impurities and depositing a layer of protective material on to the metal film.

Abstract: Embodiments of solid-state batteries, battery components, and related construction methods are described. The components include one or more embodiments of a low melt temperature electrolyte bonded solid-state rechargeable battery electrode and one or more embodiments of a composite separator having a low melt temperature electrolyte component. Embodiments of methods for fabrication of solid-state batteries and battery components are described. These methods include co-extrusion, hot pressing and roll casting.

Abstract: Provided is an electric storage battery including a jelly roll type electrode assembly having a mandrel. The mandrel includes a positive portion, a negative portion and a removable portion. In some embodiments, the mandrel is planar having two faces with a groove on each of the positive and negative portions. The grooves can be on the same or different faces of the mandrel. The grooves are dimensioned to accommodate a positive and negative feedthrough pin. The electrodes are wrapped around the mandrel using the removable portion to wind the mandrel. Once wrapped, the removable portion can be detached. The positive portion and the negative portion are left in the electrode assembly insulated from each other. The mandrel allows tighter wrapping of the jelly roll assembly, increasing battery miniaturization and also results in electrode assemblies in which after-placement of tabs does not result in burrs or shorting.

Abstract: An electrode for a power storage device with good cycle characteristics and high charge/discharge capacity is provided. In addition, a power storage device including the electrode is provided. The electrode for the power storage device includes a conductive layer and an active material layer provided over the conductive layer, the active material layer includes graphene and an active material including a plurality of whiskers, and the graphene is provided to be attached to a surface portion of the active material including a plurality of whiskers and to have holes in part of the active material layer. Further, in the electrode for the power storage device, the graphene is provided to be attached to a surface portion of the active material including a plurality of whiskers and to cover the active material including a plurality of whiskers. Further, the power storage device including the electrode is manufactured.

Abstract: The electrochemical device includes a composite electrode. The composite electrode has a working electrode that includes a current collector. A reference electrode is immobilized on the current collector. The reference electrode includes a reference active medium on a reference current collector. The reference current collector is electrically insulated from the current collector. A top surface of the reference electrode is substantially flush with a top surface of the working electrode. The top surface of the reference electrode is a surface of the reference electrode that is substantially parallel to the reference current collector.

Abstract: A non-aqueous secondary battery includes: a positive-electrode collector layer; a positive-electrode layer formed on one surface of the positive-electrode collector layer; a negative-electrode collector layer; a negative-electrode layer formed on one surface of the negative-electrode collector layer so as to be opposed to the positive-electrode layer; a separator provided between the positive-electrode layer and the negative-electrode layer; and a positive-electrode-side insulating layer and a negative-electrode-side insulating layer respectively formed on another surface of the positive-electrode collector layer and another surface of the negative-electrode collector layer. Circumferential inner surfaces of peripheral edges of the positive-electrode collector layer and the negative-electrode collector layer are joined with a sealing agent including at least a positive-electrode fusion layer, a gas barrier layer, and a negative-electrode fusion layer.