Abstract: Disclosed is a method of manufacturing a graphene conductive fabric, which includes mixing a first solvent, a second solvent and nano-graphene sheets, dispersing the nano-graphene sheets with a mechanical force to form a graphene suspension solution; adding at least a curable resin to the graphene suspension solution, dispersing the nano-graphene sheets and the curable resin with the mechanical force to form a graphene resin solution; coating or printing the graphene resin solution on a hydrophobic protective layer, curing the graphene resin solution to form a graphene conductive layer adhered to the hydrophobic protective layer; coating a hot glue layer on the graphene conductive layer; and attaching a fibrous tissue on the hot glue layer, heating and pressing the fibrous tissue to allow the hot glue layer respectively adhere to the graphene conductive layer and the fibrous tissue.

Abstract: Provided is a graphene additive, having a viscosity between 1000 and 40000 cps and a grind fineness not greater than 15 ?m, and comprising: nano-graphene sheets and a silane coupling agent, wherein a weight ratio of the nano-graphene sheets to the silane coupling agent is 0.1-15:99.9-85, and carbon atoms on a surface of the nano-graphene sheets form chemical bonds Si—O—C with oxygen substituents of the silane coupling agent. The present application further provides a method of preparing the graphene additive.

Abstract: A graphene dispersion paste has a viscosity in a range from 50,000 to 350,000 cps and a scraper fineness less than 20 ?m, and includes graphene sheets, a solvent and a first polymer, wherein the graphene sheets have a bulk density in a range from 0.005 to 0.05 g/cm3, a thickness in a range from 0.68 to 10 nm, and a plane lateral dimension in a range from 1 to 100 ?m. The present application further provides methods of preparing and using the graphene dispersion paste.

Abstract: The present invention discloses a composite structure of graphene and carbon nanotube and a method of manufacturing the same. The composite structure includes graphene platelets and carbon nanotubes, each carbon nanotube growing perpendicular to the planar surface of the graphene platelet. The method includes steps of graphene platelets preparation, chemical precipitation, chemical reduction and carbon nanotube growth. Metal particles are first formed on the graphene platelets through the steps of chemical precipitation and electrochemical reduction, and carbon nanotubes grow in the step of carbon nanotube growth through thermal treatment. Thus, the graphene platelets and the carbon nanotubes of the present invention form a three dimensional structure, and the carbon nanotubes are used as three dimensional spacers and configured between the graphene platelets, which are effectively separated and hard to aggregate or congregate together.

Abstract: Disclosed is a graphene printed circuit pattern structure including a substrate excellent in electrical insulation and a graphene printed circuit layer provided on the substrate. The graphene printed circuit layer is electrically conductive and has a circuit pattern like an electrical circuit on the circuit board. The graphene printed circuit layer includes surface-modified nanographene platelets, a carrier resin and a filler. The ratio of the particle size of the filler to the thickness of the surface-modified nanographene platelet is 2-1000, and the surface-modified nanographene platelets are dispersed in the carrier resin. The filler is uniformly placed among the surface-modified nanographene platelets so as to enhance effective contact for the surface-modified nanographene platelets. The graphene printed circuit pattern structure provides excellent electrical properties and heat dissipation to achieve protection by preventing electrical elements from overheat.

Abstract: A method of surface modifying graphene is disclosed and includes placing powder-like graphene into a closed container, heating up to a preset impurity detaching temperature higher than 100° C. so as to detach the impurity from the surface of graphene, further adjusting the treatment temperature to a preset surface modifying temperature, and injecting the gaseous surface modifying agent to be physically adsorbed by the surface of graphene. Thus, surface modified graphene is formed. The surface modifying temperature is higher than the sublimation temperature of the surface modifying agent and less than the decomposition temperature of the surface modifying agent. Therefore, the present invention is simpler and safer because of only physical adsorption used and no chemical reaction involved. Dispersibility of surface modified graphene in the solution is greatly increased to improve uniformity and enhance the performance of the final product formed of surface modified graphene.

Abstract: Disclosed is a graphene polymer composite material, including a matrix resin, a filler and a plurality of nano-scaled graphene sheets. Each nano-scaled graphene sheet has a surface-modified layer formed of a surface modifying agent, which provides hydrophilic and hydrophobic functional groups used to form chemical bonds with the matrix resin and the filler, thereby greatly improving strength of junction cohesion. The filler helps the graphene sheets to contact each other so as so to increase overall electrical conductivity and thermal conductivity. Since the graphene sheets are uniformly dispersed in the matrix resin, the composite material of the present invention possesses excellent mechanical property, anti-oxidation, acid-base resistance, high electrical conductivity and thermal conductivity. Therefore, the composite material is suitable for the industries in need of high performance material.

Abstract: An electrochemical separation membrane and the manufacturing method thereof are disclosed. The method includes: a polymer solution preparing step to mix a polymer material, solvent and ceramic precursors thoroughly to form a polymer solution, wherein the polymer material and the ceramic precursors are dissolved uniformly in the solvent; a coating step to coat the polymer solution on a porous base material; a hydrolysis step to cause the porous base material coated with the polymer solution to contact an aqueous solution to hydrolyze the ceramic precursor into ceramic particles; and a drying step to remove the water and the solvent from the porous base material and in order to form the electrochemical separation membrane. The electrochemical separation membrane made of this method have better ion conductivity, interface stability and thermal stability based on the ceramic particles.

Abstract: A graphene composite coating layer for being coated on the surface of the target object comprises a curable mixed resin more than 97 wt % and a plurality of surface modified nano graphene sheets. The curable mixed resin comprises a curable resin and a curing agent. The curable resin is 10-50 wt % of the curable mixed resin, and the curing agent is 0˜10 wt % of the curable mixed resin. The surface modified graphene sheets with less than 3 wt % of the graphene composite coating layer are evenly spread in the curable mixed resin. The surface of the surface modified nano graphene sheet has some specific functional groups to form effective bonding with the curable mixed resin, thereby improving the compatibility of the surface modified nano graphene sheets and the curable mixed resin, increasing the junction strength, and enhancing the functions like anti-oxidation, acid/base resistance and mechanical strength.

Abstract: The present invention relates to a nano-graphite plate structure with N graphene layers stacked together, where N is 30 to 300. The nanometer nano-graphite structure has a tap density of 0.1 g/cm3 to 0.01 cm3, a thickness of 10 nm to 100 nm, and a lateral dimension of 1 ?m to 100 ?m. The ratio of the lateral dimension to the thickness is between 10 and 10,000. The oxygen content is less than 3 wt %, and the carbon content is larger than 95 wt %. The nano-graphite plate structure has both the excellent features of the graphene and the original advantages of easy processability of the natural graphite so as to be broadly used in various application fields.

Abstract: Disclosed are a hollow graphene nanoparticle and a method for manufacturing the same. The hollow graphene nanoparticle is made of graphene sheets stacked together, and has a particle size of 10˜500 nm and a specific surface area greater than 500 m2/g. The method includes the steps of forming graphene, etching and heat treatment. First, a reducing agent is injected into an oven filled with protective gas, a carbon-containing gas compound or a second gas compound decomposing to generate carbon at higher temperature is added, a processing temperature is heated up to perform a redox reaction so as to form graphene nanoparticles containing side products, the graphene nanoparticles is then immersed in the acidic etching solution to remove the side products and obtain the hollow graphene nanoparticles.

Abstract: A graphene-containing electrochemical device includes cathode/anode current collectors, cathode/anode active layers and a separator. The cathode/anode active layers are formed on the cathode/anode current collectors, and include a metal foil substrate and a graphene conductive layer. The graphene conductive layer includes several first graphene sheets and the polymer binder used to bind the first graphene sheets. The cathode/anode active layers include several second graphene sheets and cathode/anode active particles. The second graphene sheets and the cathode/anode active particles are bound by the polymer binder and further adhered to the graphene conductive layer. The second graphene sheets are blended among the cathode/anode active particles.

Abstract: A current collector structure includes a metal foil substrate and a graphene conductive layer provided on at least one surface of the metal foil substrate. The graphene conductive layer includes a plurality of graphene sheets and a polymer binder used to bind the graphene sheets together and to adhere the graphene sheets onto the metal foil substrate. The conductive layer has a thickness of 0.1 ?m to 5 ?m and a resistance less than 1 ?-cm. The polymer binder increases the adhesion force, such that the integrated conductive network is thus formed. Since the polymer binder is well compatible with the binder as the active material contained in the electrochemical element. The active material of the electrochemical element is thus tightly bound with the graphene conductive layer so as to minimize the contact resistance and greatly improve the performance of the electrochemical element.

Abstract: The present invention discloses a graphene fiber and a method of manufacturing the same. The graphene fiber is manufactured by oxidizing graphite, dispersing, spinning, drying and heat treatment, and has a diameter less than 100 ?m, a ratio of length to diameter greater than 10, and a ratio of carbon to oxygen greater than 5. The graphene fiber is formed of a plurality of graphene sheets, which envelop an axis and are coaxially stacked one by one from the axis. The thickness of the graphene sheet is less than 3 nm, and chemical bonds are formed to tightly bond the graphene sheets to exhibit excellent mechanical and thermally/electrically conductive properties. The method of the present invention is implemented by simple steps so as to greatly reduce poisonous chemicals possibly generated in the manufacturing environment, thereby improving the safety of manufacturing and reducing the whole processing time and cost.

Abstract: A modified lubricant includes lubricant grease and nano-graphite plates dispersed thoroughly in the lubricant grease. The content of the nano-graphite plates is 0.0001 wt % to 10 wt %. Each nano-graphite plate has a length or a width between 1 and 100 ?m, a thickness within 10 nm and 100 nm, and N graphene layers stacked together and a surface modifying layer disposed on the top or bottom of the nano-graphite plates, wherein N is 30 to 300. The surface modifying layer has a surface modifying agent which includes at least two functional groups located at two ends of the surface modifying agent, one of the two functional groups is chemically bonded with certain organic functional group remaining on the surface of the nano-graphite plate, and the other of the two functional groups forms the functional surface of the nano-graphite plate.

Abstract: A graphene ink includes a dispersion solution with a surface tension between 35 and 55 mJ/m2, a polymer binder dissolved in the dispersion solution to form a colloidal solution, and a plurality of graphene sheets dispersed in the colloidal solution with a suspension concentration of 0.1˜5 wt %. The graphene ink has a viscosity less than 100 cp and a surface potential greater than 30 mV or less than ?30 mV. The graphene ink is first prepared and then processed by the steps of masking, spraying, solidifying and removing so as to form a graphene pattern by patterning the graphene ink on an electrical insulation substrate.

Abstract: A modified lubricant includes lubricant grease and nano-graphite plates dispersed thoroughly in the lubricant grease. The content of the nano-graphite plates is 0.0001 wt % to 10 wt %. Each nano-graphite plate has a length or a width between 1 and 100 ?m, a thickness within 10 nm and 100 nm, and N graphene layers stacked together and a surface modifying layer disposed on the top or bottom of the nano-graphite plates, wherein N is 30 to 300. The surface modifying layer has a surface modifying agent which includes at least two functional groups located at two ends of the surface modifying agent, one of the two functional groups is chemically bonded with certain organic functional group remaining on the surface of the nano-graphite plate, and the other of the two functional groups forms the functional surface of the nano-graphite plate.

Abstract: A graphene transparent conductive film, Which includes a plurality of graphene sheets and a transparent conductive binder binding the graphene sheets to form the graphene transparent conductive film. The weight ratio of the graphene sheets to the transparent conductive binder is within a range of 0.01 to 1 wt %, and the volume percentage of the transparent conductive binder in the graphene transparent conductive film is within a range of 0.5 to 10%. The transparent conductive binder is a transparent conductive polymer comprising at least one structure of polythiophene and polycationic polymer. The graphene sheets are stacked and bound together by the transparent conductive binder to form the integrated conductive network structure such that the resulting graphene transparent conductive film still has lower sheet resistance with high transparency. Therefore, the present invention can be formed on the flexible support body and greatly expand the field of application.

Abstract: The present invention relates to a nano-graphite plate structure with N graphene layers stacked together, where N is 30 to 300. The nanometer nano-graphite structure has a tap density of 0.1 g/cm3 to 0.01 cm3, a thickness of 10 nm to 100 nm, and a lateral dimension of 1 ?m to 100 ?m. The ratio of the lateral dimension to the thickness is between 10 and 10,000. The oxygen content is less than 3 wt %, and the carbon content is larger than 95 wt %. The nano-graphite plate structure has both the excellent features of the graphene and the original advantages of easy processability of the natural graphite so as to be broadly used in various application fields.

Abstract: A method for the preparation of graphene is provided, which includes: (a) oxidizing a graphite material to form graphite oxide; (b) dispersing graphite oxide into water to form an aqueous suspension of graphite oxide; (c) adding a dispersing agent to the aqueous suspension of graphite oxide; and (d) adding an acidic reducing agent to the aqueous suspension of graphite oxide, wherein graphite oxide is reduced to graphene by the acidic reducing agent, and graphene is further bonded with the dispersing agent to form a graphene dispersion containing a surface-modified graphene. The present invention provides a method for the preparation of graphene using an acidic reducing agent. The obtained graphene can be homogeneously dispersed in water, an acidic solution, a basic solution, or an organic solution.