1544 results about "Conductive polymer" patented technology

The invention relates to the technical field of solar cells, and provides a laminated cell and a manufacturing method thereof, which are at least beneficial to improving the efficiency of the laminated cell. The laminated cell comprises a crystalline silicon bottom cell, a middle layer and a perovskite top cell which are sequentially laminated in a preset direction, the middle layer comprises a conductive composite layer, the conductive composite layer is located on the surface, facing the perovskite top cell, of the crystalline silicon bottom cell, and materials of the conductive composite layer comprise a conductive polymer and a metal dopant; the metal grid layer is embedded into one side, far away from the crystalline silicon bottom battery, of the conductive composite layer, and the conductive composite layer exposes the surface, far away from the conductive composite layer, of the metal grid layer; the barrier layer is located on the side, away from the composite layer, of the metal grid layer and covers the surfaces of the metal grid layer and the conductive composite layer.

The invention belongs to the technical field of aerogel, and particularly relates to high-conductivity aerogel powder as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly preparing a graphene / polypyrrole nanosheet composite material with a three-dimensional structure, and then preparing the polyimide / graphene / polypyrrole ternary hybrid conductive aerogel by taking a polyamide acid solution as a precursor through a solution dipping and freeze drying process. Polyimide is used as a framework of high-conductivity aerogel powder, excellent mechanical strength and structural integrity are provided, the common brittleness problem of a pure graphene carbon material or polypyrrole conductive polymer aerogel is solved, and the three-dimensional graphene / polypyrrole nanosheet composite material has excellent elasticity and toughness and can be used for preparing a composite material with high conductivity. The polyimide aerogel prepared by the method can be dispersed in a polyimide matrix as a nano reinforcement, can effectively transfer stress and prevent crack propagation, and endows the aerogel with higher mechanical properties.

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.

The invention provides a comprehensive shielding signal cable and a manufacturing method thereof.The comprehensive shielding signal cable comprises a cable core and a protective layer wrapping the cable core, and the protective layer sequentially comprises a composite shielding layer and an outer sheath layer from inside to outside; the composite shielding layer comprises an iron-based amorphous nanocrystalline alloy layer, a 3D woven mesh layer and a conductive polymer coating which are sequentially arranged on the outer side of the cable core from inside to outside; through the gradient composite structure of the iron-based amorphous nanocrystalline alloy layer (low-frequency magnetic shielding), the 3D woven mesh layer (medium-frequency electromagnetic shielding) and the conductive polymer coating (high-frequency electric field shielding), the full-band shielding effectiveness is realized for the first time, meanwhile, the return loss is greatly reduced, the electromagnetic transmission performance and reliability of the cable are improved, and the service life of the cable is prolonged. And the structural stability of the cable is improved.

A method for producing a conductive polymer dispersion, the method comprising a step for adding an electric conductivity improving agent to a dispersion that contains a conjugated conductive polymer and a polyanion and dispersing the same, wherein the step is performed at a liquid temperature of 30°C or higher.

The invention relates to the technical field of rust-proof treatment of metal products, in particular to a rust-proof discoloration-proof packaging system and method for a bronze-plated tire bead wire. The system sequentially comprises a cleaning unit, a surface treatment unit, a drying box, a film coating device, a cooling unit, a post-treatment unit, a take-up device and a packaging system according to the process. The core of the process method is as follows: the steel wire is immediately coated with a special antirust film coating agent to be cured by using waste heat generated after the steel wire is dried, and the film coating agent comprises water-based resin, a silane coupling agent, a conductive polymer, a nano filler and benzotriazole; during packaging, an intelligent packaging system with a built-in humidity response humidity control bag is adopted, and the humidity control bag can automatically release inert gas and a moisture absorbent when the environment humidity reaches a preset threshold value. Multiple synergistic protection on the surface of the steel wire is achieved, the anti-rust period is remarkably prolonged to 12 months or above through dynamic humidity control, meanwhile, the bonding performance and the retention rate of the steel wire and rubber are improved, and energy conservation and environment protection are achieved.

A capacitor that is capable of exhibiting good electrical properties under a wide variety of different conditions is provided. The capacitor contains a capacitor element that includes a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric and includes a conductive polymer. The capacitor also contains multiple exposed anode lead portions that are electrically connected to respective anode terminations and a planar cathode termination that is electrically connected to the solid electrolyte.

The present invention relates to a process for the manufacture of a water-soluble n-type conductive polymer, the process comprising the steps of: a) adding a monomer to a solvent system comprising water in the presence of a catalyst, thereby providing a reaction solution; b) allowing the monomer to polymerize in the reaction solution, thereby obtaining an n-type conductive polymer solution; and c) performing post-treatment on the n-type conductive polymer solution to obtain the water-soluble n-type conductive polymer.

The invention discloses a polycrystalline positive electrode material for a sulfide all-solid-state battery, a preparation method of the polycrystalline positive electrode material and a secondary battery, the surface of a high-nickel polycrystalline positive electrode material is coated with a conductive polymer in a surface coating manner, and an inorganic electrolyte is dispersed in the conductive polymer. According to the polycrystal positive electrode material for the sulfide all-solid-state battery, the stress generated by expansion of the high-nickel polycrystal positive electrode material is effectively relieved by utilizing the elasticity of the conductive polymer, the mechanical strength and durability of the material are enhanced, and the problem that the high-nickel polycrystal positive electrode material is easy to crack in the circulating process is effectively solved. In addition, the interfacial compatibility between the high-nickel polycrystalline positive electrode material subjected to coating modification treatment and the electrolyte is improved, the coated conductive polymer also has excellent electronic conductivity, the inorganic electrolyte can realize lithium ion transmission on a polymer chain segment, and the combined action of the two can improve the internal grain boundary conductivity of the polycrystal, so that the rate performance is improved.

The invention relates to the technical field of functional composite probe material preparation, in particular to a three-core spinning technology-based bio-compatible gel probe and a preparation method thereof, and the three-core spinning technology-based bio-compatible gel probe comprises a composite skin layer and three functional core layers; the composite skin layer is composed of a sodium alginate-polydopamine-chitosan grafted copolymer in a mass ratio of 2: 1: 0.5, and contains # imgabs 0 # chondroitin sulfate and # imgabs 1 # polyoxyethylene; the three core layers are respectively a carbon nanotube-polyaniline # imgabs2 # hybrid material, a graphene-polypyrrole-boron nitride hybrid material and a # imgabs3 # polythiophene-hydroxyapatite hybrid material, and the mass ratio of the carbon material to the conductive polymer to the newly added nano material in each core layer is 1: 2: 0.3; and the diameter ratio of the skin layer to the three core layers is 1: 0.28: 0.22: 0.17. According to the invention, multichannel signal transmission is realized, the impedance is reduced by the hybrid material, and the conductivity is improved; the composite skin layer is matched with soft tissue mechanical properties, and interface bonding is stable; and the biocompatible component reduces inflammation, is suitable for acquiring nerve electrophysiological signals, and is easy for large-scale production.

The invention discloses a diaphragm and an electrochemical device, and belongs to the field of electrochemical energy storage. The diaphragm is used for the electrochemical device and comprises a base membrane and a coating arranged on one side or two sides of the base membrane in the thickness direction, the coating comprises a composite phase-change material, the composite phase-change material comprises a conductive polymer layer and a tubular material, the conductive polymer layer partially or completely coats the surface of the tubular material, and the tubular material is coated with the conductive polymer layer. A phase change material is contained in the tube of the tubular material. According to the diaphragm, the high-temperature thermal safety performance of the diaphragm can be improved under the condition that the high-temperature mechanical performance of the diaphragm is not damaged.

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 relates to a positive pole piece which comprises a positive current collector and a positive active material layer arranged on at least one surface of the positive current collector, and the positive active material layer comprises a positive active material, sulfide solid electrolyte and a core-shell flame retardant, the core-shell type flame retardant comprises a core, a first shell layer coating the core, a second shell layer coating the first shell layer and a third shell layer coating the second shell layer, the core comprises an organic flame retardant, the first shell layer comprises a thermal response polymer, the melting point of the thermal response polymer is 125-275 DEG C, the second shell layer comprises an inorganic flame retardant, and the third shell layer comprises an inorganic flame retardant. And the third shell layer comprises a conductive polymer and a carbon nanomaterial. The positive pole piece provided by the invention has improved safety, and also has enhanced compression resistance and conductivity.

The invention belongs to the technical field of aerogel, and particularly relates to nylon aerogel for 3D printing as well as a preparation method and application of the nylon aerogel. The preparation method of the aerogel comprises the following steps: (1) adding an aniline monomer and ice micropowder into pre-cooled deionized water to obtain a monomer mixed solution; (2) dropwise adding an initiator into the monomer mixed solution in batches under the stirring condition of not less than 400rpm, and reacting to obtain curved polyaniline; (3) preparing a nylon mixed solution containing curved polyaniline; and (4) freeze-drying to obtain the nylon aerogel for 3D printing. According to the preparation method, an ice crystal template method and a freeze drying method are combined, so that the microstructure of the polyaniline-containing nylon aerogel is adjusted, and the nylon-based aerogel conductive polymer material is prepared. The conductive aerogel material can greatly improve the elongation at break and the conductivity of a polyurethane material, and has a wide application prospect.

The invention discloses a composite coated modified positive electrode material, a preparation method thereof and a secondary battery, the composite coated modified positive electrode material provided by the invention comprises a positive electrode material and a composite coating layer on the surface of the positive electrode material, and the composite coating layer is composed of a fast ion conductor and a conductive polymer. The used fast ion conductor is a self-synthesized fast ion conductor and has the characteristics of stable crystal lattice, low surface brittleness and high ionic conductivity, the fast ion conductor and the conductive polymer are simultaneously coated on the surface of the positive electrode material to form a composite coating layer, and an electron-ion double-conduction transmission network is formed on the surface of the positive electrode material; the interface stability of the positive electrode material is enhanced, the volume expansion effect is relieved, and the electrochemical performance of the positive electrode material is comprehensively and effectively improved.

The invention discloses a high-surge ESD electrostatic suppressor, and relates to the technical field of electrostatic suppressors, the high-surge ESD electrostatic suppressor comprises an insulating substrate, and terminal electrodes are symmetrically arranged on the two sides of the substrate; the plurality of internal electrodes are embedded in the insulating substrate and are electrically connected with the conductive polymer layer; the conductive polymer layer is arranged among the plurality of internal electrodes and is used for ESD energy absorption and conduction; salient point units arranged in an array are arranged between the conductive polymer layer and the internal electrode; connecting interfaces between the insulating substrate and the conductive polymer layer are respectively provided with a transition interface; a frame unit wrapping the outer side of the conductive polymer layer is arranged above the insulating substrate, the two ends of the frame unit are in lap joint with the tops of the end electrodes, the frame unit and the insulating substrate are mutually connected through connecting pieces, and through holes are formed in the positions, corresponding to the connecting pieces, of the end electrodes and the internal electrodes respectively; according to the invention, the long-term ESD suppression stability and reliability of the device are improved.

The invention relates to the technical field of new energy materials, in particular to a thermoelectric composite material and a preparation method and application thereof.The thermoelectric composite material comprises 2D TMDs, a P-type semiconductor polymer and a conductive polymer, the P-type semiconductor polymer and the conductive polymer are cross-linked to form a composite conductive polymer, and the 2D TMDs are dispersed in the composite conductive polymer. The composite conductive polymer has the effects of forming a thermoelectric loop, regulating and modifying the interface of the 2D TMDs and protecting the 2D TMDs dispersed in the composite conductive polymer, and the 2D TMDs and the P-type semiconductor polymer convert heat energy into electric energy under the Seebeck effect. The thermoelectric building material additive comprises a thermoelectric composite material combined on an inorganic silica gel carrier. The thermoelectric cement-based material comprises cement and a thermoelectric building material additive. The thermoelectric cement-based material has good thermoelectric performance, stability and durability, and is suitable for scenes with obvious temperature difference or urgent energy recovery requirements.

The invention belongs to the technical field of battery preparation, and particularly relates to a secondary battery and electric equipment. The secondary battery comprises a negative pole piece, wherein the negative pole piece comprises a negative current collector and a negative active material layer arranged on at least one surface of the negative current collector; the negative active material layer comprises a main body region and a thinned region arranged at the edge of the main body region, and the thickness of the thinned region is smaller than that of the main body region; the negative pole piece further comprises an ionic conductive composite material, the ionic conductive composite material makes contact with the thinned area, and the ionic conductive composite material comprises ionic liquid and at least one of a conductive polymer and a sodium ion manganese-based layered oxide. According to the invention, the ionic conductive composite material is added into the negative electrode plate and is in contact with the thinned region, so that the effect of protecting the electrode plate is achieved, the sodium ion conductivity and capacity of the thinned region can be improved, polarization and negative electrode side potential drop in the circulation process can be slowed down, sodium precipitation and side reaction are inhibited, the loss of active sodium is reduced, and the service life of the battery is prolonged.

The invention relates to the technical field of battery diaphragm preparation, in particular to a lithium ion battery diaphragm and a preparation method thereof.The lithium ion battery diaphragm comprises a diaphragm base material and modified slurry coating the surface of the diaphragm base material; a preparation method of the modified slurry comprises the following steps: adding the modified conductive polymer, the modified graphene and the vinylidene fluoride polymer into N-methyl pyrrolidone, uniformly stirring, adding vinylene carbonate, and fully stirring to obtain the modified slurry. The preparation method of the lithium ion battery diaphragm comprises the following steps: coating the modified slurry on the surface of the diaphragm base material, and flattening and curing to obtain the lithium ion battery diaphragm. The lithium ion battery diaphragm prepared in the invention has good thermal stability, can keep a stable structure in a normal working temperature range of a battery, has excellent air permeability, good diaphragm electrolyte wettability, reduced resistance, improved ionic conductivity, good capacity retention rate after long-term use, and is more durable.

The invention provides a solar cell and a preparation method thereof, and a photovoltaic module, the solar cell comprises a substrate, and a first transmission layer, a perovskite layer, a second transmission layer and a silver-carbon composite electrode which are sequentially arranged on the substrate, the silver-carbon composite electrode is located on the surface of the second transmission layer, and the silver-carbon composite electrode comprises a first electrode layer and a second electrode layer, the first electrode layer comprises a conductive polymer and a carbon material, the second electrode layer comprises silver, and the thickness of the second electrode layer is 10-20 nm. The solar cell provided by the invention has higher photoelectric conversion performance and lower manufacturing cost.

The invention provides a high-performance concrete anticorrosive paint and a preparation method of a coating, and relates to the technical field of building materials and corrosion prevention. The coating is composed of a component A and a component B, the component A comprises epoxy resin, a composite solvent, an organic solvent, a dispersant, fumed silica and a leveling agent, and the component B comprises an epoxy hardener, a conductive polymer dispersion liquid and an organic solvent. The composite solvent is formed by compounding one or more of orthotitanate, phosphate and orthosilicate with an ester, ketone, alcohol, aromatic hydrocarbon, aliphatic hydrocarbon or ether organic solvent. The preparation method of the anticorrosive coating comprises the following steps: preparing the component A and the component B, mixing to form a coating, applying the coating to the surface of concrete, and curing. The coating is compact in structure and strong in adhesive force, can obviously improve the durability and corrosion resistance of concrete in extreme environments such as high salinity and high acid, and is particularly suitable for infrastructure protection in coastal and heavy corrosion industrial areas.

A nanocomposite catalyst for use as an electrode in water electrolysis includes a cobalt triazole (Co-Tri) metal-organic framework (MOF), carbon quantum dots (CQDs), carbon nanosheets (CNs), and an ionically conductive polymer binder. The mass ratio of the nanocomposite catalyst includes cobalt triazole metal-organic framework to the carbon quantum dots is in the range of 1:2 to 1:4, and the mass ratio of the cobalt triazole metal organic framework to the carbon nanosheets mass ratio is in the range of 1:4 to 1:6. The nanocomposite catalyst includes current density less than or equal to (≤) −5 milliampere per centimeter square (mA·cm−2) at an applied potential of −100 millivolts (mV) when catalyzing the hydrogen evolution reaction (HER) in water electrolysis.

The invention provides a preparation method of a flexible strain sensor and the flexible strain sensor. The preparation method comprises the following steps: step M1, carbonizing an MOFs material to obtain a porous C-MOF metal framework material; step M2, adding a conductive polymer into the C-MOF material to obtain an interconnection composite material which takes the conductive polymer as a conductive bridge and is connected with isolated C-MOF conductive crystals; step M3, modifying a support material with the interconnected composite material to form a sensitive layer of the strain sensor; step M4, coating a flexible electrode support layer on the substrate, and patterning the flexible electrode support layer; m5, coating the flexible electrode support layer with a flexible conductive material to prepare an electrode conductive layer; step M6, removing the substrate to obtain a flexible electrode; and step M7, placing the sensitive layer of the strain sensor on the flexible electrode. The sensor provided by the invention adopts a structure of modifying and interconnecting the nano composite material on the support material to measure the strain, so that the sensitivity and the stretching range of the sensor are improved, and the service life of the sensor is prolonged.

The invention relates to the field of lithium ion batteries, in particular to a biomass carbon / silicon / conducting polymer ternary composite negative electrode material with a hierarchical pore structure and a preparation method and application thereof. According to the material, active nano silicon is effectively limited by utilizing natural graded pore channels of biomass, and a conductive polymer layer with elastic strain buffering capability is prepared by combining a low-temperature in-situ polymerization process. According to the structure, biomass carbon pores are filled with the conductive polymer layer, the specific surface area of the material can be reduced, interface side reaction can be inhibited, and therefore the first coulombic efficiency and cycling stability of the material are improved.

The invention discloses a hair area hydrogel Ag3Sn tow brain electrode and application. The hair area hydrogel Ag3Sn tow brain electrode comprises an electrode base body and hydrogel. The electrode base body comprises an electrode upper shell, an electrode lower shell, a conducting strip and an electrode buckle; the lower electrode shell and the upper electrode shell are detachably connected; the hydrogel is fixed in an inner cavity of the electrode lower shell and extends out of the shell bottom surface of the electrode lower shell; an electrode buckle extends out of one end, far away from the electrode lower shell, of the electrode upper shell; the hydrogel is in contact with the conducting strip, and the conducting strip is connected with the electrode buckle; and the conducting strip comprises an Ag3Sn nano wire bundle modified with a conducting polymer. According to the hair area hydrogel Ag3Sn wire bundle brain electrode, the structure design of micro / nano wire bundles on the surface of the electrode is optimized, so that the electrode has good conductivity and more excellent charge storage capacity, and the interface impedance and the long-time electroencephalogram collection capacity are reduced.

A hydroxylation solvent and a coupling agent are used for treating hollow glass beads to obtain silanized hollow glass beads, a conductive polymer monomer and an oxidizing agent are introduced, the conductive polymer monomer is excited to generate a polymerization reaction through the strong oxidation effect of the oxidizing agent to generate a conductive polymer, and the modified hollow glass beads are obtained. The conductive polymer and the surface functional groups of the silanized hollow glass beads are combined together in situ under the interaction of the conductive polymer and the silanized hollow glass beads to form the modified hollow glass beads. The conductive polymer with corrosion resistance grows on the hollow glass beads in situ through an in-situ polymerization method, so that the modified hollow glass beads are prepared, the problem of inherent internal defects of pure epoxy resin is solved, the compatibility of the beads and the epoxy resin is enhanced, the beads can be uniformly dispersed in matrix resin, and the corrosion resistance of the hollow glass beads is improved. A good interface layer is formed, and the anti-corrosion effect of the conductive polymer and the heat preservation effect of the hollow glass beads are fully exerted.

The invention discloses a high-magnification low-expansion modified silicon-carbon composite material and a preparation method and application thereof, the modified silicon-carbon composite material is of a particle structure and comprises a silicon-carbon material serving as an inner core and a fluorine-containing conductive polymer layer coating the surface of the silicon-carbon material; the silicon-carbon material is obtained by coating the surfaces of silicon particles with carbon layers; the fluorine-containing conductive polymer layer is obtained by initiating polymerization of a first monomer and a second monomer, and the first monomer is a fluorine-containing polymer monomer. The preparation method comprises the following steps: putting the silicon-carbon material, a first monomer and a second monomer into a hydrothermal reaction kettle, adding a mixed solvent of water and ethanol, heating while stirring, adding an initiator after heating to a target temperature, preserving heat, reacting, cooling, carrying out suction filtration, washing with water, and drying to obtain the fluoro-coated silicon-carbon material, namely the modified silicon-carbon composite material. According to the application, the modified silicon-carbon composite material serves as a negative electrode active component and is mixed with a conductive agent, a binding agent and a dispersing agent, so that the negative electrode coating slurry for preparing the negative electrode plate of the lithium ion battery is formed.

The utility model relates to the field of electromagnetic shielding films, in particular to an electromagnetic shielding film, which comprises a multi-layer composite structure and is characterized in that the electromagnetic shielding film is formed by compounding at least four layers of materials, namely a base material layer 1, a conductive grid layer 2, an electromagnetic absorption layer 3 and a protective layer 4 in sequence; the base material layer 1 adopts a light high-strength polymer film as a substrate and has excellent flexibility and mechanical strength; the conductive grid layer 2 is located on the base material layer 1, is of a grid structure formed by fine metal wires or high-conductivity polymer fibers, is formed through a precise weaving or printing technology and is used for guiding and dispersing electromagnetic wave energy; the technical problem that the service life and the shielding effect of the electromagnetic shielding film are affected due to the fact that the electromagnetic shielding film is prone to abrasion, scraping and the like in the long-term use process is solved.