6587 results about "Conductive materials" patented technology

The invention discloses copper-containing slurry suitable for high-temperature sintering and a preparation method thereof, and the copper-containing slurry comprises the following components in percentage by mass: 10-80% of copper powder, 0-80% of silver powder, 0.2-1% of low-softening-point glass powder, 0-3% of high-softening-point glass, 15-20% of an organic carrier and 0.5-3% of an organic auxiliary agent, the low-softening-point glass powder is of a Pb-Te-Li system, the softening temperature ranges from 250 DEG C to 350 DEG C, and the softening temperature is lower than the decomposition temperature of the organic coating agent on the surface of the copper powder. The preparation method comprises the following steps: adding the components according to the ratio, stirring until the components are uniformly dispersed, grinding and sieving to obtain the copper-containing slurry suitable for high-temperature sintering. According to the prepared copper-containing slurry, the low-softening-point glass powder is adopted as a key component, a liquid-phase protection layer is formed in the high-temperature sintering process, oxidation and diffusion of copper are effectively inhibited, and the oxidation resistance and the conductive stability of the copper-containing slurry are improved. Meanwhile, the slurry has good flowability and printing performance, and can meet the requirements of the photovoltaic industry for efficient and low-cost conductive materials.

A method includes forming a dielectric layer over a source / drain region. An opening is formed in the dielectric layer. The opening exposes a portion of the source / drain region. A conductive liner is formed on sidewalls and a bottom of the opening. A surface modification process is performed on an exposed surface of the conductive liner. The surface modification process forms a surface coating layer over the conductive liner. The surface coating layer is removed to expose the conductive liner. The conductive liner is removed from the sidewalls of the opening. The opening is filled with a conductive material in a bottom-up manner. The conductive material is in physical contact with a remaining portion of the conductive liner and the dielectric layer.

A temperature-dependent switch, including a switching mechanism unit, and a switching mechanism housing including a first base body composed of electrically conductive material. The temperature-dependent switch further includes a switch housing having a second base body composed of electrically insulating material, in which the switching mechanism housing is arranged, wherein the switch housing includes a stationary contact part. The first base body of the switching mechanism housing surrounds the switching mechanism unit from a first housing side, a second housing side opposite to the first housing side, and a housing circumferential side extending between and transversely to the first and the second housing sides. The first housing side includes an opening through which a movable contact part of the switching mechanism unit interacts with the stationary contact part. The second base body surrounds the first housing side and the circumferential housing side of the switching mechanism housing.

The invention discloses a preparation method and application of three-dimensional intercalation multidirectional conductive MXene-based aerogel, and relates to the technical field of advanced electrochemical energy storage materials and devices. According to the MXene / conductive polymer and nanofiber composite aerogel developed by the invention, the two-dimensional conductive material, the pseudocapacitance polymer and the high-performance nanofiber are integrated in a three-in-one manner, so that collaborative optimization of conductivity, the number of active sites and structural stability is realized, and inherent defects of a single-component material are fundamentally avoided; and a universal solution is provided for solving the industrial problem of unbalanced performance of the electrode material.

A plant holder for holding an amount of rooting (growing) media in which plant roots develop that electrically isolates the plant roots from an electric field used to deliver water and plant nutrients to that rooting media via a high-voltage, low-current electrospray system. A conductive material disposed proximate the rooting media receives electrically charged droplets including water or nutrients and passes the water or nutrients to the rooting media while directing the electrical charge to ground.

The invention provides copper paste, a preparation method thereof and application of the copper paste in preparation of a solar cell, and relates to the technical field of photovoltaic cells, and the copper paste comprises the following components: a conductive material and a conductive reinforcing material; the conductive material comprises at least one of gradient micron-sized nickel-tungsten coated copper powder and micron-sized nickel coated copper powder; the conductive reinforcing material comprises at least one of a nano nickel wire and nano nickel-tungsten coated copper powder. According to the invention, the slurry formula is improved, and the conductivity, the process adaptability and the low-temperature sinterability are enhanced.

The invention relates to the technical field of conductive materials, in particular to a high-concentration dispersion system and a preparation method thereof. The high-concentration dispersion system comprises a conductive agent, a dispersing agent, a solvent and a viscosity reduction auxiliary agent, the conductive agent is modified carbon nanotubes, the dispersing agent is modified polyvinylpyrrolidone, the solvent is N-methyl pyrrolidone or deionized water, and the viscosity reduction auxiliary agent is piperazine anhydrous; wherein the modified carbon nano tube is obtained by mixing and heating a carbon nano tube and a mixed acid solution of nitric acid and sulfuric acid, then cooling, filtering, washing, drying, then dispersing in 75% ethanol, and finally adding 3-[3-carboxyl allylamido] propyltriethoxysilane for modification; the modified polyvinylpyrrolidone is obtained by heating polyvinylpyrrolidone at 310-330 DEG C and then oxidizing the polyvinylpyrrolidone. The conductive agent content of the high-concentration dispersion system is high, the conductive agent accounts for 15%-20% of the high-concentration dispersion system by mass, and the high-concentration dispersion system is low in viscosity, high in dispersity and good in conductivity.

The invention relates to the technical field of supercapacitors, in particular to an alkali-activated solid-waste-based supercapacitor and a preparation method thereof.The preparation method comprises the steps that industrial solid waste and fiber forestry and agricultural residues are subjected to co-pyrolysis to form organic-inorganic composite solid waste gelling powder, an alkali activator and a functional additive are added to prepare alkali-activated slurry, and the alkali-activated slurry is prepared; pouring, molding and curing to obtain an alkali-activated solid waste-based electrolyte substrate; the method comprises the following steps: performing high-temperature pyrolysis, activation and the like on granular agricultural and forestry wastes to prepare a carbon-based composite conductive material, and preparing a biochar electrode plate; the preparation method comprises the following steps: taking PVDF as a raw material, bonding and curing the PVDF and the raw material, immersing the PVDF and the raw material into a KOH solution containing a PVA thickener, inserting a glass fiber diaphragm, and regulating and controlling the use amount of PVDF and other binders and a solvent system to optimize slurry viscosity and film forming uniformity so as to obtain an electrode film with mechanical flexibility and interface adhesive force; the composite electrode forms a stable composite interface in the process of being in contact with an alkali-activated electrolyte interface, and the phenomena of interface aging and capacitance attenuation caused by mismatching between the electrode and the electrolyte in a traditional cement-based system are effectively avoided.

The invention discloses a high-toughness conductive and thermal-conductive epoxy adhesive, a preparation method thereof and a conductive film, and belongs to the technical field of conductive materials. Comprising the following raw material components in parts by weight: 100 parts of epoxy resin, 4-25 parts of a latent curing agent, 0.5-5 parts of an accelerant, 200-600 parts of conductive filler, 5-15 parts of an epoxy-terminated polyurethane flexibilizer, 5-20 parts of a core-shell flexibilizer, 5-10 parts of a nitrile rubber flexibilizer, 2-10 parts of a reactive diluent, 0.5-2 parts of a coupling agent and 20-50 parts of a solvent. Through compounding of the over-end epoxy type polyurethane flexibilizer, the core-shell flexibilizer and the nitrile rubber flexibilizer, the prepared conductive adhesive has excellent toughness and bonding characteristics, and meanwhile, the shrinkage stress and thermal stress in the curing process can be reduced.

A light detection apparatus according to an embodiment of the present disclosure includes a semiconductor substrate, a light receiver, a trench, a multiplier that is a first electrically-conductive type, and a contactor. The semiconductor substrate has a first surface and a second surface facing each other, and has a pixel array in which a plurality of pixels is disposed into an array shape in an in-plane direction. The light receiver is provided inside the semiconductor substrate for each of the pixels, and generates, through photoelectric conversion, carriers in accordance with an amount of light received. The trench is provided, for each of the pixels, to the first surface of the semiconductor substrate. The multiplier that is the first electrically-conductive type is provided to a bottom surface of the trench, and allows the carriers generated in the light receiver to undergo avalanche multiplication. The contactor includes an electrically-conductive material buried in the trench, and is in contact with the multiplier.

The invention provides a health monitoring module and electronic equipment. The health monitoring module comprises a shell, an optical heart rate module, a circuit board and a light transmitting part, the shell is fixed to one side of the circuit board, and the shell and the circuit board jointly define a containing space. The shell comprises a conductive part made of conductive materials, one part of the conductive part is exposed out of the top face of the shell, and the other part of the conductive part is electrically connected with the circuit board. The optical heart rate module is located in the containing space, the optical heart rate module is fixed to the circuit board and electrically connected with the circuit board, the optical heart rate module and the light hole are oppositely arranged, and the optical heart rate module emits and receives light through the light hole and the light transmitting piece. The optical heart rate module can be used for acquiring PPG signals of a user. The conductive part can be used for collecting electric signals of a user. And the ECG signal of the user can be obtained after the electric signal is processed. Devices for measuring ECG signals and PPG signals are integrated in one module, so that the module can realize multiple functions in a small size.

The invention belongs to the technical field of electrolytic baths, and particularly relates to an alkaline electrolytic bath device, a temperature detection unit comprises a unit body, a plurality of temperature detection elements and a supporting body, the unit body is arranged between two adjacent small electrolysis chambers, a detection cavity is formed in the unit body, and a plurality of flow channel openings are formed in the edge of the unit body in an axial penetrating mode; the detection cavity is not communicated with the flow channel openings, the temperature detection elements are arranged on at least one face in the detection cavity, the supporting body is arranged in the detection cavity and connected between the two faces, facing the adjacent small electrolysis chambers, of the detection cavity, and the supporting body and the unit body are both made of conductive materials. On the basis of ensuring normal circulation of alkali liquor among the electrolysis cells, normal conduction of current and no influence on the electrolysis efficiency, the temperature of each to-be-detected point in the electrolysis cells can be more directly obtained, and accurate detection of the temperature of the electrolysis cell device is realized; and the problems of high sealing difficulty at the wiring position of the temperature detection element and easiness in leakage of alkali liquor are solved.

The invention belongs to the technical field of lithium ion batteries, and discloses a carboxyl-containing copolyimide binder, a lithium ion battery silicon negative electrode, a lithium ion battery and a preparation method, and polyamide acid is prepared by using a carboxyl-containing diamine monomer, an amino-terminated long aliphatic chain diamine monomer and an anhydride monomer as raw materials; and carrying out chemical imidization, precipitation and washing on the polyamide acid to obtain the carboxyl-containing copolyimide binder. The prepared carboxyl-containing copolyimide binder has good solubility in a conventional electrode manufacturing solvent, and the solution system of the obtained carboxyl-containing copolyimide binder is uniform and stable. When the carboxyl-containing copolyimide binder is applied to preparation of a silicon negative electrode of a lithium ion battery, the carboxyl-containing copolyimide binder can generate dual covalent interface interaction with silicon active material particles and conductive material particles, so that the migration efficiency of lithium ions in an electrode system is remarkably improved, the transmission dynamics performance is enhanced, and the high-rate charge-discharge capacity of the battery is effectively improved.

The invention discloses a cranial cavity rapid hemostasis instrument which comprises a sleeve, a conductive expansion and contraction piece and a push-pull rod connected with the conductive expansion and contraction piece, a through penetrating hole is formed in the sleeve, the push-pull rod can drive the conductive expansion and contraction piece to move in the penetrating hole, and the conductive expansion and contraction piece is electrically connected with an external power source through the push-pull rod. The conductive expansion and contraction piece is of a net-shaped structure, the conductive expansion and contraction piece can be contracted into a strip shape in the penetrating hole, the conductive expansion and contraction piece can be expanded into a sphere-like shape outside the penetrating hole, the conductive expansion and contraction piece comprises a plurality of first silk threads and a plurality of second silk threads, and the extending directions of the first silk threads and the second silk threads are arranged in a staggered mode. The first silk threads and the second silk threads are made of flexible conductive materials. According to the invention, medium injection is not needed, the expansion speed is high, the hemostasis efficiency is high, and the pressure distribution is uniform.

In a method of manufacturing a semiconductor device, a field effect transistor (FET) having a metal gate structure, a source and a drain over a substrate is formed. A first frontside contact disposed between dummy metal gate structures is formed over an isolation insulating layer. A frontside wiring layer is formed over the first frontside contact. A part of the substrate is removed from a backside of the substrate so that a bottom of the isolation insulating layer is exposed. A first opening is formed in the isolation insulating layer from the bottom of the isolation insulating layer to expose a bottom of the first frontside contact. A first backside contact is formed by filling the first opening with a conductive material to connect the first frontside contact.

The invention relates to the technical field of sensors, and provides a flexible pressure sensor and a pressure-sensitive fabric, the flexible pressure sensor comprises the pressure-sensitive fabric, the pressure-sensitive fabric is provided with a pressure detection position for detecting a pressure signal, and the pressure-sensitive fabric is formed by weaving a composite conductive filament and a first non-conductive filament, the composite conductive wire is obtained by doubling a conductive wire and a second non-conductive wire, and the conductive wire is prepared from a conductive material and a base material; the processor is connected with the pressure detection positions and used for processing the pressure signals of the pressure detection positions and outputting pressure distribution information on the pressure-sensitive fabric according to the pressure signals corresponding to the pressure detection positions. According to the pressure sensor provided by the embodiment of the invention, the pressure-sensitive fabric has the characteristics of bending resistance, impact resistance and electric conductivity which is not easily influenced by the environment, and the consistency of the pressure-sensitive fabric is improved, so that the precision of the pressure sensor in various environments is improved.

To provide a vehicle powertrain structure capable of ensuring safety during a vehicle collision, a vehicle includes a drive system, a battery, and an inverter. The drive system has a motor for travel of the vehicle and a motor housing formed of a conductive material. A direct current (DC) connector, to which a wire extending from the battery is connected, is disposed in a rear wall portion of the battery housing. The motor housing accommodates DC bus bars that connect the DC connector and a circuit section of an inverter and an auxiliary machine wire that connects between the DC connector and an electric compressor mounted on the vehicle. A junction box in which the auxiliary machine wire is branched from the DC bus bars is arranged in a rear space behind a motor accommodation space that accommodates a stator and a rotor of a motor.

The invention provides a magnetic random access memory and a preparation method thereof. The magnetic random access memory is applied to a comparison circuit, and comprises a magnetic tunnel junction comprising a free layer, a barrier layer and a reference layer which are stacked in sequence; the spin-orbit torque layer is located on the side, away from the reference layer, of the free layer, the conductive material layer is located on the side, away from the spin-orbit torque layer, of the magnetic tunnel junction, and a conductive material of the conductive material layer has the following characteristics that spontaneous magnetization capacity is achieved, and the resistance temperature coefficient is smaller than 0; the conductive material layer comprises a first part and a second part which are arranged at an interval, the first part is in contact with the reference layer, a first input end of the comparison circuit is electrically connected with the first part, and a second input end of the comparison circuit is electrically connected with the second part. According to the invention, the technical problems that the reading window of the magnetic tunnel junction becomes small and even the reading is wrong and the magnetic random access memory needs to apply an auxiliary magnetic field along the current direction to realize the deterministic overturning of the magnetic moment are at least solved.

The invention relates to the technical field of semiconductors, and discloses a preparation method of a heat-conducting polyurethane polishing pad, which comprises the following steps: coupling a silane coupling agent with a hydroxylated inorganic heat-conducting material, and carrying out condensation reaction on silanol groups in the silane coupling agent and hydroxyl groups in the hydroxylated inorganic heat-conducting material to form Si-O-Si covalent bonds; bridging a hydroxylated inorganic heat-conducting material at one end of a silane coupling agent to obtain an intermediate; the intermediate is an inorganic heat-conducting material modified by a silane coupling agent; mixing the polyurethane prepolymer with the intermediate to form a mixed prepolymer, and curing the mixed prepolymer at a first temperature to obtain heat-conducting polyurethane; or curing the polyurethane prepolymer to obtain polyurethane, carrying out melt blending on the polyurethane and the intermediate at a second temperature, and curing at a first temperature to obtain heat-conducting polyurethane, in the heat-conducting polyurethane, polyurethane is bridged at the other end of the silane coupling agent. Compared with the prior art, the heat transfer and heat conduction performance of the polishing pad is effectively improved.

The present application relates to a kind of full solid-state lithium ion membrane reactor with symmetrical structure and its application, the reactor is in situ construction on the both sides of solid-state lithium ion conductor film with Pt and / or Ni as catalyst, with single-walled carbon nanotube etc. Conductive material is used as current collector gas diffusion electrode, the reactor can work in nitrogen hydrogen mixture atmosphere, integration is high, scale is flexible.The present application changes the working mode of traditional reactor using liquid electrolyte, replaces inefficient nitrogen and proton mass transfer with efficient lithium ion mass transfer, couples lithium-mediated nitrogen reduction and hydrogen oxidation reaction to synthesize ammonia, and the maximum working current density is increased to 1000mA / cm 2 , and can work at 40mA / cm 2 Current density for a long time, with innovation and broad industrial application prospect.

The invention belongs to the technical field of conductive polymer materials, and particularly relates to a three-dimensional polypyrrole conductive material and a preparation method and application thereof. The preparation method of the three-dimensional polypyrrole conductive material comprises the following steps: (1) preparing a metal copper quantum dot and graphene oxide mixed dispersion liquid; (2) adding an oxidizing agent to obtain a reaction solution; (3) adding a pyrrole monomer, and carrying out a polymerization reaction to obtain a graphene oxide / polypyrrole composite dispersion liquid; and (4) adding a reducing agent to reduce the graphene oxide to obtain the three-dimensional polypyrrole conductive material. After the metal copper quantum dots are loaded on the graphene oxide sheet layer, the graphene oxide sheet layer becomes a structure-oriented core in subsequent polymerization, and finally the stable three-dimensional conductive composite material with graphene as a framework and polypyrrole nanosheets as connection points is formed. Compared with a traditional three-dimensional material formed by overlapping and integrating a two-dimensional graphene sheet layer and a conductive nanowire / nanorod, the three-dimensional material with the structure can form an efficient conductive path more easily under the condition of low filler content.

The invention discloses an instrument capable of being separated through light control and a preparation method and application of the instrument, and belongs to the technical field of biomedical engineering and flexible electronics. The instrument capable of being separated through light control comprises a flexible substrate layer, an electrode layer and a gel integration layer, the preparation method comprises the following steps: (1) forming an electrode pattern on a silicon wafer through photoetching, and carrying out oxygen plasma treatment to prepare a hydrophilic surface; (2) spin-coating a water-soluble polymer solution to form a sacrificial layer; (3) spin-coating silicone rubber pre-polymerized liquid and curing to form a flexible substrate layer; (4) dissolving the sacrificial layer with water to realize demolding, and embedding a patterned conductive material into the surface to form an electrode layer; and (5) coating the photo-responsive adhesive hydrogel pre-polymerization liquid, and performing cross-linking curing to form a gel integration layer, thereby obtaining the photo-responsive adhesive hydrogel. Through integrated structural design and functional material integration, the brain-computer interface ECoG electrode with high flexibility, high adhesion, high conductivity and controllable debonding capacity and the like is provided, and a technical basis and an application platform are provided for a next-generation intelligent implantable brain-computer system.

A flexible display device example includes a display panel including an active area, a non-active area, and a bending area and having one edge that is bent in a rear direction to have a predetermined curvature, first and second back plates disposed on a rear surface of the display panel, a metal plate disposed on a rear surface of the first back plate and an adhesive member disposed between the metal plate and the second back plate, and including a support layer, a first adhesive layer and a third adhesive layer disposed on an upper portion of the support layer, and a second adhesive layer disposed on a lower portion of the support layer, wherein the third adhesive layer may include a conductive material and may have conductivity. Thus, fixing force of a bending portion may increase, thereby preventing cracks in the bending portion that may occur during drop evaluation.

A method for manufacturing an electrode for a secondary cell, comprising the steps of: providing an electrode substrate comprising an electrically conducting material; forming an active layer on the electrode substrate, wherein the active layer comprises a plurality of carbonaccous particles; exposing the active layer to a magnetic field configured to orient a majority of the particles along a normal of the substrate; and exposing the active layer to laser pulses or mechanical rollers to form a plurality of passages in the active layer, thereby facilitating ionic transport towards the substrate.

Embodiments described herein relate to electrochemical cells with multiple separators, and methods of producing the same. A method of producing an electrochemical cell can include disposing an anode material onto an anode current collector, disposing a first separator on the anode material, disposing a cathode material onto a cathode current collector, disposing a second separator onto the cathode material, and disposing the first separator on the second separator to form the electrochemical cell. The anode material and / or the cathode material can be a semi-solid electrode material including an active material, a conductive material, and a volume of liquid electrolyte. In some embodiments, less than about 10% by volume of the liquid electrolyte evaporates during the forming of the electrochemical cell. In some embodiments, the method can further include wetting the first separator and / or the second separator with an electrolyte solution prior to coupling the first separator to the second separator.

Embodiments described herein relate to electrochemical cells with multiple separators, and methods of producing the same. A method of producing an electrochemical cell can include disposing an anode material onto an anode current collector, disposing a first separator on the anode material, disposing a cathode material onto a cathode current collector, disposing a second separator onto the cathode material, and disposing the first separator on the second separator to form the electrochemical cell. The anode material and / or the cathode material can be a semi-solid electrode material including an active material, a conductive material, and a volume of liquid electrolyte. In some embodiments, less than about 10% by volume of the liquid electrolyte evaporates during the forming of the electrochemical cell. In some embodiments, the method can further include wetting the first separator and / or the second separator with an electrolyte solution prior to coupling the first separator to the second separator.

The invention provides a graphene-based hydrogen sulfide gas sensor and a preparation method thereof, and relates to the technical field of gas sensors. The preparation method of the graphene-based hydrogen sulfide gas sensor comprises the following steps: soaking the wood substrate in a mixed metal salt solution containing a water-soluble silver salt and a water-soluble transition metal salt; irradiating the soaked wood substrate by using a laser beam at room temperature under the condition of no shielding gas, so that lignin and cellulose in the wood substrate are cracked and reconstructed to form graphene; meanwhile, the mixed metal salt immersed in the wood substrate is decomposed to form bimetallic oxide nanoparticles including silver oxide nanoparticles and transition metal oxide nanoparticles, and the bimetallic oxide nanoparticles are dispersed on the surface of each layer of graphene to obtain a sensitive layer; and coating conductive materials on the wooden substrate and on the two sides of the sensitive layer to form a connecting electrode in contact with the sensitive layer, thereby obtaining the graphene-based hydrogen sulfide gas sensor.

A method for manufacturing a semiconductor structure includes: forming a gate electrode; forming a gate dielectric layer over the gate electrode; forming a channel over the gate dielectric layer opposite to the gate electrode, the channel including a semiconductor material; forming a first confinement layer on the channel opposite to the gate electrode, an energy band gap of the first confinement layer being greater than an energy band gap of the channel; and forming a drain electrode and a source electrode which are connected to the channel, the drain electrode and the source electrode being spaced apart from each other and each including an electrically conductive material.

The embodiment of the invention discloses a semiconductor structure, an alignment detection method and a semiconductor device. The semiconductor structure comprises a first semiconductor structure which comprises a first conductive column and a first identifier which are arranged at an interval; the first conductive column extends along a first direction; the first direction is perpendicular to the plane of the first semiconductor structure; the material of the first identifier comprises a conductive material; the plurality of first identifiers are arranged at intervals around the first conductive column in the direction parallel to the plane where the first semiconductor structure is located; the intervals between the first marks located on the two sides of the first conductive column in the second direction and the first conductive column are equal; the second direction is parallel to the plane of the first semiconductor structure. The first conductive column and one first identifier jointly form a capacitor, and the capacitance value of the capacitor represents the alignment degree of the first conductive column and one first identifier.