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Belenos Clean Power Holding Ag
Stable dispersions of single and multiple graphene layers in solution
Fine particle-exfoliated graphite composite, negative electrode material for lithium ion secondary battery, and methods…
Carbon material for electrical storage device, method of manufacturing the same, and electrical storage device using the…
|| List of recent Graphite-related patents
|Non-polarized geophysical electrode|
The non-polarized geophysical electrode has an electrically conductive metal disk mounted at its bottom opening. A mixture of an adhesive such as epoxy, inorganic binder, or rtv silicone, and fine particles in micron or nano size of graphene, nickel, nanotube, or graphite is applied on the outer bottom surface of the conductive metal disk.
|Stable dispersions of single and multiple graphene layers in solution|
A method for producing colloidal graphene dispersions comprises the steps of: (i) stirring graphite oxide in an aqueous dispersion medium to form a dispersion; (ii) determining if the dispersion is optically clear in a light microscope at 1000 fold magnification after 1 to 5 hours of stirring, and, if not clear, removing any undissolved impurities in the dispersion, in order to form a colloidal graphene oxide dispersion, or a multi-graphene oxide dispersion, that is optically clear in a light microscope at 1000 fold magnification; and (iii) thermally reducing the graphene oxide, or multi-graphene oxide, in dispersion in the aqueous dispersion medium at a temperature between 120° c. And 170° c.
Belenos Clean Power Holding Ag
|Fine particle-exfoliated graphite composite, negative electrode material for lithium ion secondary battery, and methods for producing the same, and lithium ion secondary battery|
There is provided a method for producing a negative electrode material for lithium ion secondary batteries that is easily produced and is less likely to cause deterioration in charge and discharge cycle characteristics. A method for producing a negative electrode material for lithium ion secondary batteries, comprises steps of heating a raw material composition comprising resin-retained partially exfoliated graphite having a structure in which graphene is partially exfoliated and si particles to dope the partially exfoliated graphite with the si particles, the partially exfoliated graphite being obtained by pyrolyzing a resin in a composition in which the resin is fixed to graphite or primary exfoliated graphite, thereby exfoliating the graphite or primary exfoliated graphite while allowing part of the above resin to remain; providing a composition comprising the above partially exfoliated graphite doped with the si particles, a binder resin, and a solvent; and shaping the above composition..
Sekisui Chemical Co., Ltd.
|Carbon material for electrical storage device, manufacturing the same, and electrical storage device using the same|
Provided are: a carbon material for an electrical storage device which exhibits, even under low-temperature conditions, sufficiently excellent characteristics from the standpoint of resistivity; and a process for manufacturing the same. This carbon material for an electrical storage device is a carbon material made by pulverizing a graphite material and in which the 10% volume cumulative diameter, 50% volume cumulative diameter and 90% volume cumulative diameter are controlled to 0.45 to 1.7 μm, 0.8 to 4.0 μm and 1.55 to 8.9 μm respectively, and the volume average particle diameter distribution has at least a second peak with the highest frequency of appearance and a first peak located on the side of a particle diameter smaller than that of the second peak.
Ibiden Co., Ltd.
|Spherical annular seal member and manufacturing the same|
A spherical annular seal member 38 is used in an exhaust pipe joint and includes a spherical annular base member 36 defined by a cylindrical inner surface 32, a partially convex spherical surface 33, large- and small-diameter side annular end faces 34 and 35 of the partially convex spherical surface 33, and an outer layer 37 formed integrally on the partially convex spherical surface 33 of the spherical annular base member 36. The spherical annular base member 36 includes a reinforcing member made from a metal wire net 5 and a heat-resistant material containing expanded graphite filling meshes of the metal wire net 5 of this reinforcing member and compressed in such a manner as to be formed integrally with this reinforcing member in mixed form.
|In situ exfoliation method to fabricate a graphene-reinforced polymer matrix composite (g-pmc)|
A method for forming a graphene -reinforced polymer matrix composite is disclosed. The method includes distributing graphite microparticles into a molten thermoplastic polymer phase; and applying a succession of shear strain events to the molten polymer phase so that the molten polymer phase exfoliates the graphite successively with each event until at least 50% of the graphite is exfoliated to form a distribution in the molten polymer phase of single- and multi-layer graphene nanoparticles less than 50 nanometers thick along the c-axis direction..
Rutgers, The State University Of New Jersey
|Method for fabricating super mirror finish stainless steel decorative sheet|
The present invention provides a method for fabricating a super mirror finish stainless steel sheet uses the following steps: 1) rough machining, wherein a 400-450 grit sandpaper or scouring pad is used to remove an oxide layer on a surface of a stainless steel decorative sheet; 2) finish machining, wherein a 240-1,000 grit graphite grinding wheel is used to perform finish grinding; and 3) polishing processing, wherein an abrasive material is used to perform polishing. For the finish grinding and the polishing that are performed by using the grinding wheel and the abrasive material respectively, a multi-shaft polishing system is used to drive a grinding wheel, and a cylinder is controlled to adjust a force of each polishing shaft, which enables a stainless steel decorative sheet to have a surface finish under 0.01 μm and a reflectivity above 69%..
Haimen Senda Decoration Material Co., Ltd
|Fuel cell separator and production fuel cell separator|
A separator includes a gas flow path forming body, which includes a substrate made of stainless steel, a resin layer arranged on the substrate, and a conductive layer arranged on the surface of the resin layer. The resin layer contains a filler, which has conductivity and greater hardness than an oxide film of the substrate.
Toyota Shatai Kabushiki Kaisha
|Lithium/air cathode design|
The present disclosure is related to an electrochemical component, particularly a coating for an electrode and a method for producing the electrochemical component. Said electrode is part of an electrode assembly of a lithium/air battery cell.
|Highly filled high thermal conductive material, manufacturing same, composition, coating liquid and molded article|
[solution] disclosed is a high filler-loaded high thermal conductive material formed by subjecting a composition which includes organic polymer particles and a thermally conductive filler having a graphite-like structure, and includes 5 to 60% by weight of the organic polymer particles and 40 to 95% by weight of the thermally conductive filler having a graphite-like structure relative to 100% by weight of the total amount of these components, is obtained, so that the thermally conductive filler is dispersed by delamination while maintaining the average planar particle size of the thermally conductive filler, and is capable of forming a thermally conductive infinite cluster; to press molding at a temperature higher than equal to the deflection temperature under load, melting point or glass transition temperature of the organic polymer and a pressure of 1 to 1000 kgf/cm2; and to cooling and solidification.. .
Heat-dissipating sheet having high thermal conductivity and its production method
A heat-dissipating sheet having a density of 1.9 g/cm3 or more and an in-plane thermal conductivity of 570 w/mk or more, which comprises carbon black uniformly dispersed among fine graphite particles, a mass ratio of fine graphite particles to carbon black being 75/25 to 95/5, is obtained by repeating plural times a cycle of applying a dispersion of fine graphite particles, carbon black and an organic binder in an organic solvent to a surface of a support plate, and then drying it, to form a resin-containing composite sheet; burning the resin-containing composite sheet to remove the organic binder; and pressing the resultant composite sheet of fine graphite particles and carbon black for densification.. .
Metal nanoparticle-graphene composites and methods for their preparation and use
Methods of forming metal nanoparticle-graphene composites are provided. The methods can include mixing a metal precursor with graphite oxide in the presence of a liquid medium to form a metal precursor-graphite oxide mixture, and exfoliating the graphite oxide and reducing the metal precursor in the metal precursor-graphite oxide mixture to deposit metal nanoparticles on a first major surface of a graphene sheet formed by exfoliation of the graphite oxide..
Indian Institute Of Technology Madras
Cathodized gold nanopartcle graphite pencil electrode and glucose detection
The cathodized gold nanoparticle graphite pencil electrode is a sensitive enzymeless electrochemical glucose sensor based on the cathodization of aunp-gpe. Cyclic voltammetry shows that advantageously, the cathodized aunp-gpe is able to oxidize glucose partially at low potential (around −0.27 v).
King Abdulaziz City For Science And Technology
Ti(c,n)-based cermet with ni3al and ni as binder and preparation method thereof
Provided are ti(c,n)-based cermets with ni3al and ni as binder and a preparation method thereof. The ti(c,n)-based cermets are prepared by raw materials subjected to ball-mill mixing, die forming, vacuum degreasing and vacuum sintering, wherein weight percentage of each chemical component of the raw materials is as follows: tic 34.2˜43%, tin 8˜15%, mo 10˜15%, wc 5˜10%, graphite 0.8˜1.0%, ni 20˜24%, and ni3al powder containing b 6˜10%.
Huazhong University Of Science And Technology
Anti-ice coating for compressor blades
The present invention relates to a composition for producing a coating for components of a turbomachine having anti-ice properties, wherein the composition comprises a binder which comprises at least one silicon-organic constituent, ceramic particles, boron nitride particles and a solvent and also polytetrafluoroethylene and/or graphite. The ceramic particles can have an average or maximum grain size of less than 4 μm and the boron nitride particles can have an average or maximum grain size of less than 12 μm.
Mtu Aero Engines Ag
Process for manufacturing graphite powder for lithium secondary battery negative electrode material
A method for easily producing a graphite powder for use as a lithium secondary battery negative electrode material with small specific surface area while reducing energy consumption, and achieving high graphitization efficiency, includes melt-mixing a coke powder and a carbon precursor binder so that an amount of fixed carbon included in the carbon precursor binder is 5 to 15 parts by mass based on 100 parts by mass of the coke powder, to prepare a mixture, and pressing the mixture to prepare a compact, the coke powder being obtained by heating a green coke powder at 600 to 1450° c. In a non-oxidizing atmosphere, the green coke powder having a cumulative particle size at 50% in a volumetric cumulative particle size distribution of 5 to 50 μm; heating the compact in a non-oxidizing atmosphere to effect carbonization and graphitization to obtain a graphitized compact; and grinding the graphitized compact..
Tokai Carbon Co., Ltd.
Piezoresistive sensors and methods
Piezoresistive sensors are provided that include a flexible substrate, a flexible thin film coating on the flexible substrate and two or more electrodes connected to the thin film coating at spaced locations of the thin film coating, wherein the thin film coating includes carbon nanotubes, graphite nanoplatelets, or a combination of carbon nanotubes and graphite nanoplatelets. The thin film coating can be a hybrid thin film including carbon nanotubes and graphite nanoplatelets.
Florida State University Research Foundation, Inc.
Electrochemical polishing solution, process for electrochemically polishing graphite gate electrode and graphite gate electrode
The invention discloses an electrochemical polishing solution, a process for electrochemically polishing a graphite gate electrode and a graphite gate electrode, which are used for providing an electrochemical polishing solution and a polishing process to efficiently remove the contaminant on the surface of a gate electrode and improve the quality of the gate electrode. Said electrochemical polishing solution comprises 900-1000 parts by weight of water; 195-205 parts by weight of an alkaline metal hydroxide; 49-51 parts by weight of a weak acid salt; and 294-306 parts by weight of an additive..
Beijing Boe Vacuum Technology Co., Ltd.
Manufacturing nonaqueous electrolyte secondary battery
A manufacturing method according to the present invention is a method for manufacturing a nonaqueous electrolyte secondary battery including graphite as a negative-electrode active material. The manufacturing method includes: a step of assembling the battery including a positive electrode and a negative electrode; and a step of performing an initial charging process of performing first charging on the battery.
Toyota Jidosha Kabushiki Kaisha
Electrical conductive polymer binder for si alloy materials
A poly(1-pyrenemethyl methacrylate-co-dopamine methacrylamide) ppydma polymer binder has been designed and fabricated, and has demonstrated an excellent performance for silicon (si), graphite and a metal alloy anode materials. The ppydma polymer binder demonstrates the great potential of a catechol moiety for use in a lithium-ion battery..
The Regents Of The University Of California
Carbon material for non-aqueous electrolyte secondary battery, negative electrode for non-aqueous electrolyte secondary battery, non-aqueous electrolyte secondary battery, and manufacturing carbon material for non-aqueous electrolyte secondary battery
An objet of the invention is to provide a non-aqueous electrolyte secondary battery superior in input-output characteristics even at a low temperature. To achieve the object, hybrid particles (carbon material) satisfying certain conditions, and composed of graphite particles and carbon particles with a primary particle size from 3 nm to 500 nm, preferably as well as amorphous carbon, are used as a negative electrode active material for a non-aqueous electrolyte secondary battery, so that the input-output characteristics of a non-aqueous electrolyte secondary battery at a low temperature can be improved remarkably..
Mitsubishi Chemical Corporation
Silicon single crystal growing growing silicon single crystal
A silicon single crystal growing apparatus based on a czochralski method arranges a graphite crucible inside a graphite heater for heating and a quartz crucible inside the graphite crucible and grows a crystal from a raw material melt filling the quartz crucible, and includes a heater outer heat-insulating member outside the graphite heater, a crucible lower heat-insulating member below the graphite crucible, a crucible upper heat-insulating member above straight bodies of the graphite and quartz crucibles, a crucible outer heat-insulating member outside the straight body of the graphite crucible, a crucible inner heat-insulating member inside the straight bodies of the graphite crucible and the quartz crucible, and a heat shielding member above a liquid surface of the raw material melt, the graphite crucible and the quartz crucible being movable upward and downward in a space enclosed with the crucible upper heat-insulating, crucible outer heat-insulating, and crucible inner heat-insulating members.. .
Shin-etsu Handotai Co., Ltd.
Advanced technology for iron-chrome alloys production and related plant
A method for producing ferro-chrome alloys comprising a stechiometric charge and stechiometric slag calculation step, a step of making the plant and the crucible furnace operate at normal regime, steps of casting the metal and the slag, a step of collecting the molten metal in suitable modular moulds made from spheroidal graphite cast iron, a step of removing the ingots contained in the moulds with suitable pincer means, a step of collecting the slag in suitable non-refractory bells or ladles, characterised in that the metal-slag separation takes place directly inside the furnace and in that said castings of metal and slag take place in successive steps so as to allow the drawing off of the liquids in the amounts formed between one casting and the next.. .
Coating film formation method
Aluminum alloy-made piston 1 is provided having, on external circumferential surfaces of both skirt portions 8, 9 of base member 1a, a multilayer solid lubricant coating film including inner coating film 21 and outer coating film 22. Both of the inner and outer coating films contain at least one of polyimide-imide resins, polyimide resins and epoxy resins as a binder resin.
Hitachi Automotive Systems, Ltd.
Exfoliation of graphite using ionic liquids
Disclosed are methods of exfoliating graphite using one or more ionic liquids. Also disclosed is the exfoliated graphite and/or graphene provided by a disclosed method.
The Board Of Trustees Of The University Of Alabama
Production of graphene materials in a cavitating fluid
The invention provides a method of producing a graphene material from a starting graphitic material. In an embodiment, the method comprises: (a) dispersing the starting graphitic material in a liquid medium to form a graphite suspension; and (b) introducing the graphite suspension into a hydrodynamic cavitation reactor that generates and collapses cavitation or bubbles in the liquid medium to exfoliate and separate graphene planes from the starting graphitic material for producing the graphene material.
Layered composite material
A layered composite material component has two or more layers of graphite foil. The layers of graphite foil are connected together by way of at least one connecting pin that engages in both layers in a form-fitting manner..
Sgl Carbon Se
Catalyst molded body containing graphite
The invention relates to a catalyst molded body, which is produced by deforming a mixture of a metal oxide and a special graphite. The invention further relates to a method for producing the corresponding catalyst molded bodies and to the use of the catalyst molded bodies for catalytic reactions in which hydrogen acts as a reaction reactant or reaction product, in particular hydrogenation, hydrogenolysis, and dehydrogenation reactions.
Clariant International Ltd.
Coated electrodes for lithium batteries
A coated electrode includes a negative electrode and a carbon coating adhered to a surface of the negative electrode. The negative electrode includes an active material selected from the group consisting of lithium, silicon, silicon oxide, a silicon alloy, graphite, germanium, tin, antimony, or a metal oxide; a conductive filler; and a polymer binder.
Gm Global Technology Operations Llc
Blast furnace spool liner
A hearth refractory assembly is provided to improve gas sealing of a blast furnace hearth. The blast furnace hearth has a metal outer shell and a spool extending outwardly therefrom.
Graftech International Holdings Inc.
Water dispersible flame retardant composition comprising phosphorus-functionalized graphite preparation method thereof
Disclosed is a method for producing edge-functionalized graphite with phosphoric acid. According to the method, graphite is pulverized into smaller pieces and is then exposed to an atmosphere containing oxygen and water.
Unist Academy-industry Research Corporation
Process for producing graphite film
The present invention performs special heat treatment on a polymer film in a temperature range from (i) a lower limit to temperature rise being equal to or higher than a starting temperature of thermal decomposition of the polymer film, i.e., which is a temperature observed at an early stage of the thermal decomposition of the polymer film, to (ii) an upper limit to temperature rise being equal to or lower than an intermediate temperature of thermal decomposition of the polymer film. This reduces foaming in the film during graphitization treatment following the special heat treatment.
A graphite electrode exhibits oxidation resistance by modifying the outer radial surface characteristics. The outer radial surface may be modified by providing a textured portion which improves water flow while minimizing water absorbtion.
Graftech International Holdings Inc.
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Graphite topics: Internal Combustion Engine, Optical Fiber, Fatty Acid, Combustion, Fatty Acid Amide, Circuit Board, Crystallin, Conductive Polymer, Polymer Binder, Carboxylic Acid, Contraction, Lithium Ion, Graphite Electrode, Homeopathic Medicine, Homeopathic
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