1245results about How to "Improve conductivity" patented technology

An inorganic light emitting layer having a plurality of light emitting cores, each core having a semiconductor material that emits light in response to recombination of holes and electrons, each such light emitting core defining a first bandgap; a plurality of semiconductor shells formed respectively about the light emitting cores to form core/shell quantum dots, each such semiconductor shell having a second bandgap wider than the first bandgap; and a semiconductor matrix connected to the semiconductor shells to provide a conductive path through the semiconductor matrix and to each such semiconductor shell and its corresponding light emitting core so as to permit the recombination of holes and electrons.

The present invention includes a system for delivering energy to an airway wall of a lung comprising an energy delivering apparatus and a PID controller having one or more variable gain factors which are rest after energy deliver has begun. The energy delivering apparatus may include a flexible elongated member and a distal expandable basket having at least one electrode for transferring energy to the airway wall and at least one temperature sensor for measuring temperature. The PID controller determines a new power set point base on an error between a preset temperature and the measured temperature. The algorithm can be P_i+1=P_i+G(αe_i+βe_i−1+γe_i−2) where α, β and γ are preset values and α is from 1 to 2; βis from −1 to −2; and γ is from −0.5 to 0−5. In another variation, the controller is configured to shut down if various measured parameters are exceeded such as, for example, energy, impedance, temperature, temperature differences, activation time and combinations thereof. Methods for treating a target medium using a PID algorithm are also provided.

An electrosurgical return electrode is disclosed. The return electrode includes a first and second flexible conductive material layers and a material layer disposed between the first and second conductive material layers. The material layer is transitionable between a solid state and a non-solid state, the material layer is also configured to melt upon an increase in temperature beyond a predetermined threshold, thereby increasing conductivity between the first and second conductive material layer.

This invention relates to a photovoltaic device including a back reflector. In certain example embodiments, the back reflector includes a metallic based reflective layer provided on an interior surface of a rear glass substrate of the photovoltaic device. In certain example embodiments, the interior surface of the rear glass substrate is textured so that the reflector layer deposited thereon is also textured so as to provide desirable reflective characteristics. The rear glass substrate and reflector thereon are laminated to the interior surface of a front glass substrate of the photovoltaic device, with an active semiconductor film and electrode(s) therebetween, in certain example embodiments.

An electrosurgical return electrode includes a conductive pad including a patient-contacting surface configured to conduct electrosurgical energy, and a temperature sensing circuit coupled to the conductive pad. The temperature sensing circuit includes a plurality of switching elements connected in series, wherein each of the plurality of switching elements is configured to vary in impedance in response to temperature changes, such that an interrogation signal transmitted therethrough is indicative of the temperature change.

An object is to improve field effect mobility of a thin film transistor using an oxide semiconductor. Another object is to suppress increase in off current even in a thin film transistor with improved field effect mobility. In a thin film transistor using an oxide semiconductor layer, by forming a semiconductor layer having higher electrical conductivity and a smaller thickness than the oxide semiconductor layer between the oxide semiconductor layer and a gate insulating layer, field effect mobility of the thin film transistor can be improved, and increase in off current can be suppressed.

This invention provides a metal encapsulated dendritic carbon nanostructure comprising a dendritic carbon nanostructure comprising a branched carbon-containing rod-shaped or annular material and a metallic body capsulated in the carbon nanostructure. There is also provided a dendritic carbon nanostructure comprising a branched carbon-containing rod-shaped or annular material.

An (Al, Ga, In)N and ZnO direct wafer bonded light emitting diode (LED), wherein light passes through electrically conductive ZnO. Flat and clean surfaces are prepared for both the (Al, Ga, In)N and ZnO wafers. A wafer bonding process is then performed between the (Al, Ga, In)N and ZnO wafers, wherein the (Al, Ga, In)N and ZnO wafers are joined together and then wafer bonded in a nitrogen ambient under uniaxial pressure at a set temperature for a set duration. After the wafer bonding process, ZnO is shaped for increasing light extraction from inside of LED.

An electrode structure is disposed on a substrate of a solar cell. The electrode structure includes a plurality of bus electrodes, a plurality of finger electrodes, and at least one connection electrode. The bus electrodes are separately disposed on the substrate. The finger electrodes are disposed on two sides of the bus electrodes and electrically connect to the bus electrodes. The connection electrode is disposed on a side of the substrate and connects with at least two finger electrodes. The connection electrode, bus electrodes and the finger electrodes are formed by at least two screen printing processes, and at least one of the screen printing processes does not form the bus electrodes. Thus, the thicknesses of the finger electrodes are greater than those of the bus electrodes.

The present invention provides novel compositions and methods for removal of protein aggregates from a sample in a flow-through mode.

An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the invention is an ionomer having (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) acceptably low hydration (less than about 120 weight percent). These ionomers are capable of being processed into thin film and are extremely well-suited for low humidity or high temperature fuel cell applications.

The conductive polymer solution of the present invention contains a π-conjugated conductive polymer, a solubilizable polymer, a phase transfer catalyst, and an organic solvent. The method for preparing a conductive polymer solution of the present invention comprises adding a phase transfer catalyst adding an organic solvent to an aqueous polymer solution prepared by dissolving the π-conjugated conductive polymer and a solubilizable polymer in water.

Methods for synthesizing macroscale 3D heteroatom-doped carbon nanotube materials (such as boron doped carbon nanotube materials) and compositions thereof. Macroscopic quantities of three-dimensionally networked heteroatom-doped carbon nanotube materials are directly grown using an aerosol-assisted chemical vapor deposition method. The porous heteroatom-doped carbon nanotube material is created by doping of heteroatoms (such as boron) in the nanotube lattice during growth, which influences the creation of elbow joints and branching of nanotubes leading to the three dimensional super-structure. The super-hydrophobic heteroatom-doped carbon nanotube sponge is strongly oleophilic and an soak up large quantities of organic solvents and oil. The trapped oil can be burnt off and the heteroatom-doped carbon nanotube material can be used repeatedly as an oil removal scaffold. Optionally, the heteroatom-doped carbon nanotubes in the heteroatom-doped carbon nanotube materials can be welded to form one or more macroscale 3D carbon nanotubes.

The invention provides an element-doped SiOx negative electrode composite material as well as a preparation method and application thereof. According to the element-doped SiOx negative electrode composite material, the content of SiOx is 30 percent to 80 percent, the content of carbon is 20 percent to 70 percent and the content of doping elements is 5 percent or lower; the average diameter of the composite material is 3mu.m to 25mu.m, (D90-D10)/D50 is more than or equal to 1.5 and smaller than or equal to 2 and the BET specific surface area is (8+/-5)m<2>.g<-1>. The doping element is one or more of the following elements: boron, nitrogen, phosphorus, sulfur, lithium, sodium, potassium, magnesium, aluminum, zinc, copper and tin; preferably, the doping element is a combination of non-metal elements and metal elements, such as a combination of the boron and lithium, the boron and zinc, the boron and copper, the nitrogen and aluminum, the boron, aluminum and lithium, and the boron, copper and lithium, preferably, the combination of the boron, aluminum and lithium.

A graphene-cladding manganese dioxide combination electrode material and a method for producing the same, belonging to the technical field of electronic functional materials, the graphene-cladding manganese dioxide combination electrode material comprises nano manganese dioxide particles and graphene cladded with manganese dioxide particles, wherein the mass ratio of graphene and the nano manganese dioxide particles is 1:(1.25-10). The method comprises the following steps: preparing the nano manganese dioxide particles and graphite oxide respectively, and mixing and ultrasonically dispersing to obtain the graphene-cladding manganese dioxide dispersing agent, finally, reducing the graphite oxide to obtain the graphene-cladding manganese dioxide combination electrode material. The graphene is used to clad the manganese dioxide, so the electrical conductivity and cycling stability of the electrode material parts can be improved; and meanwhile, the existence of the manganese dioxide particles also effectively prevents the graphene from reunion, so the specific capacity of the electrode material of a supercapacitor is obviously increased. The method has a simple technology, reaction products are easy to control, the purity is high, and the produced combination electrode material is suitable for producing an electrode plate of the supercapacitor.

The invention discloses a carbon coated sulfur-based anode composite material in the field of lithium sulfur batteries. The composite material comprises a sulfur-based anode material and amorphous carbon, wherein the amorphous carbon is uniformly and compactly coated on the surface of the sulfur-based anode material, the particle diameter of the sulfur-based anode material is 10 nanometers to 10 microns, and the thickness of the amorphous carbon layer is 1 to 5 nanometers. The invention also discloses an anode, which comprises a current corrector and an anode material supported on the current corrector, wherein the anode material comprises an anode active substance, anode adhesive and a conductive component; and the anode active substance is the carbon coated sulfur-based anode material. The anode is adopted for preparing a corresponding lithium sulfur battery; the amorphous carbon is coated on the surface of the sulfur-based anode active material so as to remarkably improve the electric conductivity of the anode material, and the lithium sulfur battery adopting the anode has high specific capacity and good cycle performance; and the preparation process is simple and suitable for large-scale industrialized production.

The invention provides a cooling device including a heat-receiver integrated pump that has a heat-receiving part provided on one side thereof and delivers toward a connecting pipe liquid refrigerant on which a heat exchange has been performed through the heat-receiving part. A first radiator having a plurality of radiation fins radiates heat by exchanging heat with the liquid refrigerant sent via the connecting pipe. A second radiator having a plurality of radiation fins radiates heat by exchanging heat with the liquid refrigerant similarly to the first radiator. A fan blows air toward the first radiator and the second radiator. A base, constituting a fan casing, regulates an air-blowing direction of the fan, and includes a fan cover and a reserve tank. Liquid refrigerant within the reserve tank is thermally connected to a member forming an air-blowing path of the fan.

A method of manufacturing a metal nanoparticle includes coupling a metal ion to an organic ligand having a weight-average molecular weight of about 10,000 to about 1,500,000. The method further includes reducing the metal ion coupled to the organic ligand to form a metal nanoparticle having a skin layer.

The invention relates to an elastic conductive composite fiber and a preparation method thereof. The elastic conductive composite fiber comprises a core layer and a skin layer and is characterized in that: the skin layer consists of conductive particles, and the core layer is made of elastic polymer fibers. The preparation method comprises the following steps of: preparing conductive particle pretreatment solution from 10 to 90 weight percent of conductive particles, 5 to 20 weight percent of treatment agent and the balance of solvent; and soaking the elastic polymer fibers into the conductive particle pretreatment solution, performing ultrasonic treatment for 10 to 500 seconds, taking out the elastic polymer fibers, and cleaning and drying the elastic polymer fibers to prepare the elastic conductive composite fiber. The conductive fiber with high-elasticity mechanical property, electric conductivity and weaving property is obtained with simple steps and low cost. Besides traditional antistatic property and electromagnetic shielding function, the novel polyurethane composite conductive fiber and the fabric have good application prospect on the aspects of gas and liquid sensing, temperature sensing and the like.

The invention aims at providing a preparation method for a graphene material with a porous structure. The invention adopts the technical scheme that the preparation method comprises the following steps: A, with a porous magnesium oxide/silicon composite material as a template, enabling a carbon source to grow graphene in a structure of the porous magnesium oxide/silicon composite material to form a magnesium oxide/silicon/graphene composite structure by using a chemical vapor deposition method; and B, etching to remove a template material of the composite structure, thereby obtaining the graphene material with the porous structure. According to the preparation method, the magnesium oxide/silicon composite material with the porous structure is used as the template and the macroscopic preparation can be carried out by using the chemical vapor deposition method. The preparation method for the graphene material with the porous structure is simple in process, easiness in control of the process and excellent material conductivity.

The invention provides a pacemaker and a pacemaker electrode. The pacemaker electrode comprises a body and an insulation layer. The body comprises at least one carbon nano tube line which has a plurality of carbon nano tubes arranged axially along the body and connected end to end by a Van der Waals' force; and the insulation layer is coated on the outside surface of the body. The pacemaker comprises a pulse generator, a connecting wire and the pacemaker electrode.

The invention discloses a preparation method of a conductive anticorrosive coating of modified graphene. The method comprises the steps that firstly, polyaniline is grafted to the surface of modified graphene in a conjugate mode, and the polyaniline is used as conductive filler and then forms the conductive anticorrosive coating with epoxy resin. The component A is prepared from 10 g of epoxy resin, 1.0-2.5 g of modified graphene powder, 0.1-0.3 g of fumed silica anti-settling agent, 10-30 ml of a mixing solvent, 0.01-0.03 g of polydimethylsiloxane defoaming agent, 0.03-0.05 g of a flatting agent and 0.04-0.06 g of a sodium dodecyl benzene sulfonate dispersing agent. The component B is prepared from 3-10 g of a curing agent and 3-10 ml of a mixing solvent. The mixing solvent comprises xylene and normal butanol, and the volume ratio of xylene to normal butanol is 7:3. The modified graphene is used as the filler, the conductive anticorrosive capacity of the coating can be greatly improved, and the great potential application value is achieved on the earth screen conducive and anticorrosive aspects.

The invention discloses a spherical silicon-oxygen-carbon negative electrode composite material, which is of a three-layer structure comprising an inner layer, an intermediate layer and an outer layer, wherein the inner layer is an SiOx/graphite substrate; the intermediate layer is an amorphous carbon coating layer; the outer layer is a carbon nanotube coating layer; the mass of the inner layer SiOx/graphite substrate accounts for 80%-90% of total mass of the spherical silicon-oxygen-carbon negative electrode composite material; the mass of the intermediate layer amorphous carbon accounts for 5%-10% of total mass of the spherical silicon-oxygen-carbon negative electrode composite material; and the outer layer carbon nanotube accounts for 5%-10% of total mass of the spherical silicon-oxygen-carbon negative electrode composite material. The grain diameter of the adopted SiOx substrate is smaller than 5 microns; the grain diameter is relatively small; intercalation and deintercalation of active substances are facilitated; higher specific capacity can be obtained; meanwhile, a dispersing agent is added when an SiOx sample is ground; and condition that the SiOx with a relatively small grain diameter is agglomerated in quantity to affect the performance is prevented.

The invention discloses a lithium ion battery electrolyte solution which comprises a lithium salt and a non-aqueous organic solvent, wherein the lithium salt is a lithium salt A or a mixture of the lithium salt A and a lithium salt B; the lithium salt A contains oxalate groups, and the lithium salt B does not contain oxalate groups; the lithium salt A comprises one or mixture of several of lithium bis(oxalate)borate (LiBOB), lithium difluoroborate (LiDFOB), lithium difluorophosphate (LiDFOP) and lithium tetrafluorophosphate (LiTFOP); the non-aqueous organic solvent is one or mixture of several of common carbonate, carboxylate, ethers, sulfone compounds and the like. Due to the lithium ion battery electrolyte solution, the safety and the high-low-temperature performance of a lithium ion battery can be greatly improved, and the use temperature range of the lithium ion battery can be expanded.

A conductive mesoporous carbon composite comprising conductive carbon nanoparticles contained within a mesoporous carbon matrix, wherein the conductive mesoporous carbon composite possesses at least a portion of mesopores having a pore size of at least 10 nm and up to 50 nm, and wherein the mesopores are either within the mesoporous carbon matrix, or are spacings delineated by surfaces of said conductive carbon nanoparticles when said conductive carbon nanoparticles are fused with each other, or both. Methods for producing the above-described composite, devices incorporating them (e.g., lithium batteries), and methods of using them, are also described.

The invention discloses a rubber composite modified by carbon nano tubes and graphene jointly. The rubber composite comprises, by weight, 0.001-20 parts of the graphene, 0.001-20 parts of the carbon nano tubes, 1-5 parts of padding, and 50-80 parts of rubber. Compared with existing rubber, the rubber composite has the advantage that mechanical property and electrical thermal properties are improved greatly. The rubber is better in wear resistance, conductivity effect of the rubber is improved, and antistatic and heat dissipation effect of the rubber is further improved.

Provided is a conductive paste which can have high conductivity even if the sintering temperature is 500° C. or less, and which does not cause an interference pattern or crack on a substrate even if a thick film thereof is formed on the substrate. The conductive paste comprises main components including a metal powder, a glass frit, and an organic vehicle. The metal powder is composed of spherical particles (A) having an average primary-particle diameter of 0.1 to 1 μm and spherical particles (B) having an average primary-particle diameter of 50 nm or less, and the content of spherical particles (A) ranges from 50 to 99 wt % and the content of spherical particles (B) ranges from 1 to 50 wt %. The content of the glass frit ranges from 0.1 wt % to 15 wt % to the total amount of the glass frit and the metal powder. Preferably, the glass frit does not contain lead and has a working point of 500° C. or less, and the average particle diameter thereof is 2 μm or less. The present invention can widely be applied to print on a substrate and sinter so as to form an electric circuit on the substrate.

The invention relates to a nitrogen-doped graphene-ferronickel hydrotalcite non-noble metal difunctional oxygen catalyst and a preparation method thereof and electrocatalysis application of the oxygen catalyst in an alkaline medium to an oxygen evolution reaction and an oxygen reduction reaction. According to the catalyst, a micelle is taken as a template, ferronickel hydrotalcite is assembled on graphene oxide under the hydrothermal condition to form a spherical porous compound, the graphene oxide is reduced and doped with a nitrogen carbide nanosheet simultaneously under the hydrothermal condition, and then the nitrogen-doped graphene-ferronickel hydrotalcite oxygen catalyst is obtained. The method comprises the steps that the graphene oxide and metal salt are firstly dispersed into the micelle, the graphene oxide-ferronickel hydrotalcite compound is obtained through hydro-thermal synthesis under the alkaline condition, the product is doped with the nitrogen carbide nanosheet under the hydrothermal condition, and then the oxygen catalyst is obtained. The oxygen catalyst has the catalytic activity both on oxygen evolution and oxygen reduction under the alkaline condition and is high in stability and methyl alcohol tolerance, low in used raw material cost, simple in preparation method and convenient for scale production.

The invention relates to a preparation method of lithium titanium negative electrode composite material for lithium ion battery. In the invention, Li soluble compound and Ti soluble compound are taken as lithium source and titanium source, high polymer compound is added, reaction is carried out by sol-gel method, sintering atmosphere is controlled, and sintering is carried out to obtain the composite material. The method not only can prepare nano crystalline with favourable dispersity and can prepare pyrolytic carbon evenly distributed at the periphery or on the surface of granules and obviously improves conductivity of product. The lithium titanium negative electrode material prepared by the method shows excellent multiplying power performance and is applicable to power battery.

The invention discloses a preparation method of a lithium ion battery carbon anode material with a graphene-like structure, which has the advantages of simple equipment and process, low required carbonizing temperature, low cost, high yield, good performance and the like, and has a wide application prospect. A graphene-like, amorphous carbon and carbon nano tube composite structure carbon material and the lithium ion battery carbon anode material modified by doping various elements, obtained by adopting the method, have high conductivity and specific volume; cycle performance can be greatly improved; and newer and better performances are obtained by adopting a special composite structure of the lithium ion battery carbon anode material.