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 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.