59results about How to "Conductivity adjustable" patented technology

Electrolyte capacitors containing certain polythiophenes are described. More particularly, the polythiophenes have backbones containing repeating units of the following general formula (I) and / or repeating units of the following general formula (II),wherein A is, for example, a C1-C5-alkylene radical, R is, for example, a C1-C18-alkyl radical, and x is an integer from 0 to 8. Also described are dispersions comprising such polythiophenes, and the use of such polythiophenes or dispersions thereof for producing conductive layers.

The invention relates to a high-viscosity low-melting-point metal conductive paste and its preparation method and application, which is characterized in that it is obtained by uniformly mixing low-melting-point metal and metal powder in a certain ratio and method. The metal powder can increase the viscosity and electrical conductivity of the low melting point metal. The high-viscosity and low-melting-point metal conductive paste of the invention can significantly reduce the contact resistance between electronic components, thereby reducing the contact surface temperature of the electronic components and prolonging the working life of the electronic components as much as possible. The high-viscosity and low-melting-point metal conductive paste of the invention has high conductivity, remarkable conductive effect and long service life, and can be widely used in the technical fields of electric power and energy.

The present invention relates to a molybdenum sulfide / graphene-graphene nano-belts aerogel composite material preparation method, which comprises: dispersing oxidized graphene in deionized water, and carrying out an ultrasonic treatment to obtain an oxidized graphene dispersing liquid; adding an oxidized graphene nano-belt dispersing liquid into the oxidized graphene dispersing liquid in a dropwise manner, stirring to obtain a mixed liquid, freezing with liquid nitrogen to obtain a solid, and carrying out freeze-drying to obtain the precursor of a graphene-graphene nano-belt gel; adding ammonium thiomolybdate to a solvent, and carrying out an ultrasonic treatment to obtain an ammonium thiomolybdate solution; and adding the precursor of the graphene-graphene nano-belt gel to the solution, standing, and carrying out a solvothermal reaction to obtain the molybdenum sulfide / graphene-graphene nano-belts aerogel composite material. According to the present invention, the method has characteristics of simple operation, easy control, low cost, no pollution, and easy large-scale production; and the prepared porous carbon nanometer aerogel has advantages of large specific surface area, stable chemical property, good conductivity, adjustable pore size, and the like.

Disclosed in the present invention are a carbon material and asphalt-based negative electrode material for a sodium-ion battery, and a preparation method therefor and applications thereof. The negative electrode material for a sodium-ion battery is a composite carbon material whose surface is coated with an asphalt-based block-shaped or vertical channel-shaped material that is of an ordered carbon structure or whose morphology is irregular. Carbon materials and asphalt are used as precursor materials, the precursor materials are mechanically mixed and experience thermal treatment in the air, so that melted asphalt is coated on the surface of the carbon material, and then, the asphalt and the carbon materials experience carbonization and cracking reactions in an inert atmosphere at the same time, so as to obtain the composite carbon material having a structure whose surface is ordered and whose inside is disordered, the carbon materials comprising wood charcoal materials and bamboo charcoal materials in type, the wood charcoals comprising one or more mixtures obtained by mixing white charcoal, black charcoal, activated charcoal and machine-made charcoal, the bamboo charcoal materials comprising one or more carbonized material mixtures obtained by mixing phyllostachys pubescen, phyllostachys glauca, pleioblastus amarus, phyllostachys praecox and dendrocalamus membranaceus, and the asphalt materials being one or more mixtures obtained by mixing coal tar pitch, petroleum asphalt and natural bitumen.

The invention relates to a two-step preparation method of a high-property conductive pressure-sensitive adhesive tape. The pressure-sensitive adhesive tape comprises two-layer membrane materials, namely a lower conductive carbon slurry layer and an upper pressure-sensitive adhesive layer. The two-step preparation method particularly comprises the following steps of: (1) uniformly coating conductive carbon slurry on the surface of a substrate to prepare a membrane, and drying; (2) uniformly coating a layer of pressure-sensitive adhesive on the conductive carbon slurry membrane layer to prepare a membrane, and drying. The two-step preparation method disclosed by the invention can meet the requirements for both high conductivity and high adhering property by using low-cost carbon black or graphite as conducting particles.

The invention discloses a preparation method of a conductive polypyrrole hollow compound microsphere which is sensitive to temperature, comprising the steps of: adopting a poly-(N-isopropylamide-styrene) compound microsphere prepared by a soap-free emulsion polymerization method as a core, synthesizing a poly(N-isopropylamide-methacrylic acid) shell with a cross-linked structure by a seed emulsion polymerization method, preparing a polypyrrole compound microsphere by an oxidation polymerization method, and preparing a polypyrrole hollow compound microsphere by adopting the polypyrrole compound microsphere as a template. The preparation method of the conductive polypyrrole hollow compound microsphere which is sensitive to temperature is simple in synthesizing method; the size of the obtained product is easy to control; the microsphere has large specific surface and obvious volume swelling effect; the cavity in the microsphere can contain large amount of guest molecules or macromoleculecarriers; and the cavity size, sensitivity and conductivity of the microsphere are adjustable.