Abstract: A preparation method obtains silicon oxide/carbon composite negative electrode material and a lithium-ion battery. The silicon oxide/carbon composite negative electrode material is a secondary particle, and mainly consists of a SiOx/C material. The SiOx/C material includes SiOx particles and a carbon layer with which the surfaces of the SiOx particles are coated. The SiOx particles include Si crystallites. The preparation method includes: 1) synthesizing a silicon oxide bulk; 2) performing crushing to obtain micro-level or nano-level SiOx particles; 3) mixing with a carbon binder; 4) granulating; 5) modification and carbonization; and 6) post-processing.

Abstract: Provided herein are high performance electrodes, electrode materials comprising a plurality of active electrode material-containing particles secured within one or more graphenic web, and precursors thereof. Also provided herein are processes of generating the same by an electrospray process.

Abstract: One variation of a method for fabricating a dermal heatsink includes: fabricating a substrate defining an interior surface, an exterior surface opposite the interior surface, and an open network of pores extending between the interior surface and the exterior surface; activating surfaces of the substrate and walls of the open network of pores; applying a coating over the substrate to form a heatsink, the coating comprising a porous, hydrophilic material and defining a void network; removing an excess of the coating from the substrate to clear blockages within the open network of pores by the coating; hydrating the heatsink during a curing period; heating the heatsink during the curing period to increase porosity of the coating applied over surfaces of the substrate; and rinsing the heatsink with an acid to decarbonate the coating along walls of the open network of pores in the substrate.

Abstract: Provided are an electrode binder composition that provides an electrode that exhibits high durability even when an active material that shows a large volume change is used, a power storage device electrode produced using the electrode binder composition, and a power storage device including the power storage device electrode. An electrode binder composition contains (A) one or more polymers selected from the group consisting of fluoropolymers, butadiene polymers, and thermoplastic elastomers, (B) a fibrous nanocarbon material having an average fiber diameter of 0.5 nm or more and 20 nm or less and a fiber length of 0.5 ?m or more and 1 mm or less, (C) a cellulose material, (D) a nanocellulose fiber, and (E) water. The mass ratio between (A) and (B) is (A)/(B)=60/40 to 98/2.

Abstract: A negative electrode and a rechargeable lithium battery, the negative electrode including a current collector; and a negative active material layer on the current collector, the negative active material including a carbon negative active material; wherein: an electrode density of the negative electrode is in the range of about 1.0 g/cc to about 1.5 g/cc, and a DD (Degree of Divergence) value as defined by the following Equation 1 is about 24 or greater, DD (Degree of Divergence)=(Ia/Itotal)*100??[Equation 1] wherein, in Equation 1, Ia is a sum of peak intensities at non-planar angles measured by XRD using a CuK? ray, and Itotal is a sum of peak intensities at all angles measured by XRD using a CuK? ray.

Abstract: A layer of the mixture that contains polymer and conductive particles is applied over a first surface, when the mixture has a first viscosity that allows the conductive particles to rearrange within the layer. An electric field is applied over the layer, so that a number of the conductive particles are aligned with the field and thereafter the viscosity of the layer is changed to a second, higher viscosity, in order to mechanically stabilise the layer. This leads to a stable layer with enhanced and anisotropic conductivity.

Abstract: A power conversion device having a temperature determination function is provided. The power conversion device is disposed on a light fixture and includes a housing, a power converter, and at least one temperature determination component. The power converter and the temperature determination component are disposed within the housing, and the temperature determination component is a temperature fuse. When an ambient temperature of the power converter reaches a preset temperature, the temperature determination component melts to indicate that the power converter is used under the abnormal ambient temperature. Accordingly, the ambient temperature of the power converter can be determined to be abnormal.

Abstract: Various embodiments provide an electrolyte solution, a secondary battery, a battery module, a battery pack and an electric device. In those embodiments, the electrolyte solution includes an electrolyte, a solvent and an additive, the additive including sodium hydrosulfite. Various embodiments improve an overall performance of the secondary battery, for example, initial DCR, storage gas production, a rate performance, or the like.

Abstract: A positive electrode active material for a lithium secondary battery, which can improve the performance of the battery by mixing various carbons with positive electrode active material and applying it, and a preparation method thereof and a lithium secondary battery including the same. The positive electrode active material for the lithium secondary battery includes two or more types of active material composites in which sulfur is supported on the carbon materials contained therein, wherein the carbon materials contained in any one of the two or more types of active material composites differ in at least one of the average particle size and shape from the carbon materials contained in another type of active material composites.

Abstract: Ternary composite material, electrode, supercapacitor, and related methods. A ternary composite material includes a scaffold formed of carbon nanotubes (CNT), a first layer of zeolitic imidazolate 8 (ZIF-8) crystals formed on the scaffold of the CNT, and a second layer of molybdenum disulfide (MoS2) flakes formed on the first layer of the ZIF-8 crystals. An electrode can be formed with the ternary composite. A supercapacitor may include one or more electrodes that are at least partly formed of the ternary composite material. Methods of producing the ternary composite material and the electrodes are also disclosed.

Abstract: Composite electrodes, supercapacitors equipped therewith, ternary materials for composite electrodes, and related methods. Such a composite electrode has a composite CNT-ZIF structure formed of a conductive network of carbon nanotubes (CNT) and a zeolitic imidazole framework (ZIF) coating covering the conductive network. A layer of molybdenum disulfide (MoS2) structures having flower-like morphologies is disposed on the composite CNT-ZIF structure. The MoS2 structures have pores that provide diffusion paths for ions to and/or from the ZIF coating and/or the conductive network of CNT.

Abstract: Provided herein are nanostructures for lithium ion battery electrodes and methods of fabrication. In some embodiments, a nanostructure template coated with a silicon-based coating is provided. The silicon coating may include a non-conformal, more porous silicon-rich SiEx layer and a conformal, denser SiEx layer on the non-conformal, more porous layer. In some embodiments, two different deposition processes are used: a PECVD layer to deposit the non-conformal, silicon-rich SiEx layer and a thermal CVD process to deposit the conformal layer. The silicon-rich SiEx material prevents silicon crystalline domain growth, limits macroscopic swelling, increases lithium diffusion rate and enhances significantly battery life during lithium ion battery cycle of charge and discharge.

Abstract: Described herein are methods for generating a coated device, electrode, or portion of an electrode for implanting into a subject. Such devices and electrodes are generated using methods like atomic layer deposition. In some cases, methods like etching are used to expose portions of a coated surface. The methods described herein improve overall hermeticity, biocompatibility, and biostability of implantable devices.

Abstract: Composites of silicon and various porous scaffold materials, such as carbon material comprising micro-, meso- and/or macropores, and methods for manufacturing the same are provided. The compositions find utility in various applications, including electrical energy storage electrodes and devices comprising the same.

Abstract: The present disclosure relates to a carbon nanotube fiber having improved physical properties and a method for manufacturing the same. The method according to the present disclosure comprises the steps of: spinning carbon nanotubes with a purity of 90% by weight or more to obtain a first carbon nanotube fiber; and heat-treating the first carbon nanotube fiber at 500 to 3,000° C. under an inert gas atmosphere to obtain a second carbon nanotube fiber, wherein the second carbon nanotube fiber has a density of 1.0 to 2.5 g/cm3.

Abstract: An electrode with a relatively high surface area is formed substantially from graphene sheets.

Abstract: A method of obtaining a SiC-graphene composite with a controlled surface morphology having a surface covered with terraces or a network of pits where the method comprises providing a SiC substrate, annealing in an external beam of silicon atoms, and then cooling in an external beam of silicon atoms is disclosed.

Abstract: A method for making an electrode for an ionic liquid-based supercapacitor comprising two electrodes (anode, cathode) separated by an ionic polymer electrolyte separator, comprising: a step for making a carbon paste resulting from mixing carbon materials, ionic liquids and a binder, so as to obtain an active material for the electrode at room temperature, and a step for forming the electrode from mechanically processing the active material. A supercapacitor comprising a stack of a cathode electrode, an electrolyte separator and an anode electrode, the cathode and anode electrodes being electrically connected to current collectors, wherein the electrolyte separator comprises a polymer with an ionic liquid and the electrodes comprise a carbon-based active material mixed with an ionic liquid electrolyte and a binder.

Abstract: Silicon particles for active materials and electro-chemical cells are provided. The active materials comprising silicon particles described herein can be utilized as an electrode material for a battery. In certain embodiments, the composite material includes greater than 0% and less than about 90% by weight of silicon particles. The silicon particles have an average particle size between about 0.1 ?m and about 30 ?m and a surface including nanometer-sized features. The composite material also includes greater than 0% and less than about 90% by weight of one or more types of carbon phases. At least one of the one or more types of carbon phases is a substantially continuous phase.

Abstract: An electrochemical cell for a lithium ion battery has an anode comprising a silicon-based active material, a cathode comprising a cathode active material, and a capacity compensating electrolyte comprising a linear sulfite-based solvent and a lithium imide salt. A molar ratio of the lithium imide salt to the linear sulfite-based solvent is between 1:5 and 1:1.

Abstract: Disclosed is a method for preparing a novel granulated spherical graphite and, specifically, to a method for preparing a novel granulated spherical graphite, the method allowing a composite spherical graphite to be prepared from natural graphite discarded in a mechanical process, during the preparation of a spherical graphite having a diameter of tens of micrometers and mechanically obtained from scale-like natural graphite.

Abstract: A negative electrode for a lithium secondary battery, a method of producing the negative electrode, a method of producing a pre-lithiated negative electrode by pre-lithiation of the negative electrode, and a lithium secondary battery including the negative electrode. The negative electrode can increase the capacity of a battery and improve the electrochemical performance by securing the initial reversibility of a negative electrode by pre-lithiation, and allow lithium ions to be diffused into a negative electrode active material layer during pre-lithiation without being lost.

Abstract: A negative active material composite includes a core and a coating layer around (surrounding) the core. The core includes amorphous carbon and silicon nanoparticles, the coating layer includes amorphous carbon, and an adjacent distance between the silicon nanoparticles is less than or equal to about 100 nm.

Abstract: A silicon-carbon particulate composite suitable for use as active material in a negative electrode of a Li-ion battery, a precursor composition comprising the silicon-carbon particulate composite, a negative electrode comprising the silicon-carbon particulate composite and/or precursor composition, a Li-ion battery comprising the negative electrodes, a method of manufacturing the silicon-carbon particulate composite, precursor composition, negative electrode and Li-ion battery, the use of the silicon-carbon particulate composite in a negative electrode of a Li-ion battery to inhibit or prevent silicon pulverization during cycling, for example, during 1st cycle Li intercalation or de-intercalation and/or to maintain electrochemical capacity after 100 cycles, and a device, energy storage cell, or energy storage and conversion system comprising the silicon-carbon particulate composite and/or precursor composition.

Abstract: An anisotropic electrically conductive film has a structure wherein the electrically conductive particles are disposed on or near the surface of an electrically insulating adhesive base layer, or a structure wherein an electrically insulating adhesive base layer and an electrically insulating adhesive cover layer are laminated together and the electrically conductive particles are disposed near the interface therebetween. Electrically conductive particle groups configured from two or more electrically conductive particles are disposed in a lattice point region of a planar lattice pattern. A preferred lattice point region is a circle centered on a lattice point. A radius of the circle is not less than two times and not more than seven times the average particle diameter of the electrically conductive particles.

Abstract: The present application discloses a manufacturing method for a graphene film, a porous silica powder and a transparent conductive layer. The manufacturing method for a graphene film includes steps of: providing a porous material powder; placing the porous material powder in an atomic layer deposition device; forming a porous material template having a metal catalyst layer in pores; and preparing the graphene film on the porous material template.

Abstract: A method for producing carbon or graphite foam parts with high purity level for high-temperature insulation under vacuum or protective gas, as insulating material or as filter material, includes the following steps: introducing dry, foamable starch (1) into an open-top container (2) having a round or angular cross section, until the base (3) of the container (2) is covered amply and uniformly with starch (1); introducing the container (2) partly filled with starch (1) into an oven (4), and heating the container (2) to a foaming temperature of >180° C. over a prolonged period of several hours to foam the starch (1), until the container (2) has filled completely with carbon foam (6); withdrawing the container (2) from the oven (4) and extracting the carbon foam (6) after sufficient cooling, and optionally portioning the carbon foam (6) into carbon foam parts (6.1).

Abstract: The formation method of graphene includes the steps of forming a layer including graphene oxide over a first conductive layer; and supplying a potential at which the reduction reaction of the graphene oxide occurs to the first conductive layer in an electrolyte where the first conductive layer as a working electrode and a second conductive layer with a as a counter electrode are immersed. A manufacturing method of a power storage device including at least a positive electrode, a negative electrode, an electrolyte, and a separator includes a step of forming graphene for an active material layer of one of or both the positive electrode and the negative electrode by the formation method.

Abstract: A battery includes a positive electrode, a negative electrode, and an electrolyte, and the positive electrode includes a substituted barium titanate.

Abstract: To provide graphene oxide that has high dispersibility and is easily reduced. To provide graphene with high electron conductivity. To provide a storage battery electrode including an active material layer with high electric conductivity and a manufacturing method thereof. To provide a storage battery with increased discharge capacity. A method for manufacturing a storage battery electrode that is to be provided includes a step of dispersing graphene oxide into a solution containing alcohol or acid, a step of heating the graphene oxide dispersed into the solution, and a step or reducing the graphene oxide.

Abstract: A ceramic according to the present invention includes, in mass %, BN: 20.0 to 55.0%, SiC: 5.0 to 40.0%, ZrO2 and/or Si3N4: 3.0 to 60.0%. The ceramic has a coefficient of thermal expansion at ?50 to 500° C. of 1.0×10?6 to 5.0×10?6/° C., is excellent in low electrostatic properties (106 to 1014 ?·cm in volume resistivity) and free-machining properties, and is thus suitable to be used for, for example, a probe guiding member for guiding probes of a probe card, and a socket for package inspection.

Abstract: To form graphene to a practically even thickness on an object having an uneven surface or a complex surface, in particular, an object having a surface with a three-dimensional structure due to complex unevenness, or an object having a curved surface. The object and an electrode are immersed in a graphene oxide solution, and voltage is applied between the object and the electrode. At this time, the object serves as an anode. Graphene oxide is attracted to the anode because of being negatively charged, and deposited on the surface of the object to have a practically even thickness. A portion where graphene oxide is deposited is unlikely coated with another graphene oxide. Thus, deposited graphene oxide is reduced to graphene, whereby graphene can be formed to have a practically even thickness on an object having surface with complex unevenness.

Abstract: A composite including: at least one selected from a silicon oxide of the formula SiO2 and a silicon oxide of the formula SiOx wherein 0<x<2; and graphene, wherein the silicon oxide is disposed in a graphene matrix.

Abstract: A liquid dispersion includes a matrix phase of polymerizable material and at least 10% by volume of solid conductive particles distributed throughout the matrix. The conductive particles may have an average particle size of less than approximately 100 nm, and the liquid dispersion may have a viscosity of less than approximately 100 Poise. Such a liquid dispersion may be printed or extruded and then cured to form a solid thin film. The content and distribution of conductive particles within the thin film may reach a percolation threshold such that the thin film may form a conductive layer. Polymer-based devices, such as nanovoided polymer (NVP)-based actuators may be formed by co-extrusion of a nanovoided polymer material between conductive polymer electrodes.

Abstract: The invention relates to a polymer thick film (PTF) conductive paste composition comprising a conductive powder, a fluoroelastomer, a silane coupling agent, and one or solvents. The PTF conductive paste composition can be used to form a printed conductor and to form an electrically conductive adhesive on various articles. The PTF conductive paste composition is provides a stretchable electrical conductor for wearables.

Abstract: Electrolytes and electrolyte additives for energy storage devices comprising metal amide bases are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode and an electrolyte composition comprising at least one electrolyte additive comprising a metal amide base compound.

Abstract: A method for producing a composite conductive material having excellent dispersibility is provided. The method includes supporting a catalyst on surfaces of carbon particles; heat treating the catalyst in a helium or hydrogen atmosphere such that the catalyst penetrate the surfaces of the carbon particles and are impregnated beneath the surfaces of the carbon particles at a contact point between the carbon particles and the impregnated catalyst; and heating the carbon particles having the impregnated catalyst disposed therein in the presence of a source gas to grow carbon nanofibers from the impregnated catalyst to form a composite conductive material, wherein the source gas contains a carbon source, and wherein the carbon nanofibers extend from the contact point to above the surfaces of the carbon particles.

Abstract: Materials and methods for preparing dry cathode electrode film including reduced binder content are described. The cathode electrode film may be a self-supporting film including a single binder. The binder loading may be 3 weight % or less. In a first aspect, a method for preparing a dry free standing electrode film for an energy storage device is provided, comprising nondestructively mixing a cathode active material, a porous carbon, and optionally a conductive carbon to form an active material mixture, adding a single fibrillizable binder to the active material mixture, nondestructively mixing to form an electrode film mixture, and calendering the electrode film mixture to form a free standing electrode film.

Abstract: A positive electrode slurry composition, a positive electrode manufactured using the same, and a battery including the positive electrode. The positive electrode slurry composition includes a positive electrode active material, a binder, an alcohol, and water, wherein a content of the alcohol is in a range of 0.1 to 10% by weight, based on a total weight of the composition. The slurry composition for manufacturing a positive electrode has effects of highly improving the dispersibility of the positive electrode active material and the conductive material, decreasing the surface roughness of an electrode, and remarkably reducing a curling phenomenon in the electrode. Also, the slurry composition has an economic advantage in that a dispersing agent is not used or an amount of the dispersing agent used can be remarkably reduced.

Abstract: In some implementations, a carbon-containing glass material includes a surface-to-air interface and an interphase region extending from the surface-to-air interface along a direction to a depth within the carbon-containing glass material. The surface-to-air interface may be exposed to ambient air, and the interphase region may include a plurality of few layer graphene (FLG) nanoplatelets formed in response to recombination and/or self-nucleation of a plurality of carbon-containing radicals implanted within the interphase region. The FLG nanoplatelets have a non-periodic orientation configured to at least partially inhibit formation or propagation of microcracks and/or micro-voids in the carbon-containing glass material.

Abstract: The present invention relates to a negative electrode active material including a silicon-based composite and a carbon-based material, wherein the silicon-based composite includes SiOx (0?x?2) including pores, a polymer disposed in the pores, and a metal compound disposed on a surface of the SiOx (0?x?2) or on the surface and inside of the SiOx (0?x?2), wherein the metal compound is a compound including at least one element selected from the group consisting of lithium (Li), magnesium (Mg), calcium (Ca), and aluminum (Al), a method of preparing the same, and a negative electrode and a lithium secondary battery which include the negative electrode active material.

Abstract: Provided is a carbon nanotube water dispersion with which it is possible to form a conductive film that has excellent film strength and can cause a solar cell to display excellent conversion efficiency and reliability. The carbon nanotube water dispersion is for an electrode of a solar cell that includes an electrolyte solution containing a polar aprotic substance as a solvent and contains carbon nanotubes, a dispersant, a thickener, and water. The dispersant is soluble in the solvent and the thickener is insoluble in the solvent.

Abstract: This application relates to an electrostatic precipitator with an electromagnetic wave tube comprising a carbon nanotube (CNT)-based emitter. The electrostatic precipitator includes a charger configured to include the CNT-based emitter and ionize microparticles, in contaminated air introduced from the environment, by emitting an electromagnetic wave. The electrostatic precipitator further includes a collector configured to collect the ionized microparticles to discharge clean air.

Abstract: The electrically conductive resin composition may contain matrix resin, coke powder, and carbon fiber. The volume mean particle diameter of the coke powder may be not less than 1 ?m and not more than 500 ?m. The content percentage of the coke powder in the electrically conductive resin composition may be not less than 1 wt % and not more than 60 wt %. The aspect ratio of the carbon fiber may be not less than 3 and not more than 1700. The content percentage of the carbon fiber in the electrically conductive resin composition may be not less than 0.5 wt % and not more than 10 wt %.

Abstract: The formation method of graphene includes the steps of forming a layer including graphene oxide over a first conductive layer; and supplying a potential at which the reduction reaction of the graphene oxide occurs to the first conductive layer in an electrolyte where the first conductive layer as a working electrode and a second conductive layer with a as a counter electrode are immersed. A manufacturing method of a power storage device including at least a positive electrode, a negative electrode, an electrolyte, and a separator includes a step of forming graphene for an active material layer of one of or both the positive electrode and the negative electrode by the formation method.

Abstract: An object of the present invention is to provide a bolometer having a high TCR value and a low resistance, and a method for manufacturing the same. The present invention relates to a bolometer manufacturing method including: fabricating a set of two carbon nanotube wires that are approximately parallel to each other at edges of a line shape, or fabricating a circular shape carbon nanotube wire at a circular circumference of a circular shape, by applying a semiconducting carbon nanotube dispersion liquid in the line shape or the circular shape on a substrate, and drying the dispersion liquid, a width of each wire being 5 ?m or more; and connecting a part of each wire to a first electrode and a second electrode.

Abstract: A negative electrode and a rechargeable lithium battery, the negative electrode including a current collector; and a negative active material layer on the current collector, the negative active material including a carbon negative active material; wherein: an electrode density of the negative electrode is in the range of about 1.0 g/cc to about 1.5 g/cc, and a DD (Degree of Divergence) value as defined by the following Equation 1 is about 24 or greater, DD (Degree of Divergence)=(Ia/Itotal)*100??[Equation 1] wherein, in Equation 1, Ia is a sum of peak intensities at non-planar angles measured by XRD using a CuK? ray, and Itotal is a sum of peak intensities at all angles measured by XRD using a CuK? ray.

Abstract: A cooktop includes a base and an electrically conductive coating applied to the lower surface of the base. The coating is composed of a paint containing electrically conductive particles dispersed in a silicone or polyester-silicone or epoxy-silicone resin. The conductive particles are selected from the group consisting of multi-wall or single-wall carbon nanotubes, graphene, copper metallic particles, nickel metallic particles, or combinations thereof.

Abstract: A sorbent structure that includes a continuous body in the form of a flow-through substrate comprised of at least one cell defined by at least one porous wall. The continuous body comprises a sorbent material carbon substantially dispersed within the body. Further, the temperature of the sorbent structure can be controlled by conduction of an electrical current through the body.

Abstract: A method of forming graphene layers is disclosed. A method of improving graphene deposition is also disclosed. Some methods are advantageously performed at lower temperatures. Some methods advantageously provide graphene layers with lower resistance. Some methods advantageously provide graphene layers in a relatively short period of time.