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Graphite patents



      
           
This page is updated frequently with new Graphite-related patent applications. Subscribe to the Graphite RSS feed to automatically get the update: related Graphite RSS feeds. RSS updates for this page: Graphite RSS RSS


Lithium ion battery cell having a capacitance sensor and method for monitoring the condition of a lithium ion battery…

Lithium ion battery cell having a capacitance sensor and method for monitoring the condition of a lithium ion battery…

Thermally conductive body and electronic device using same

Thermally conductive body and electronic device using same

Thermally conductive body and electronic device using same

Disc rotor

Date/App# patent app List of recent Graphite-related patents
12/11/14
20140364524
 Method for producing expandable styrene polymers containing graphite and flame retardant patent thumbnailMethod for producing expandable styrene polymers containing graphite and flame retardant
A process for producing expandable styrene polymers via polymerization of at least one vinylaromatic monomer in aqueous suspension in the presence of at least one halogenated polymer as flame retardant, graphite, and blowing agent, which comprises the presence, in the aqueous suspension at the start of the polymerization reaction, of from 1 to 30% by weight of at least one styrene polymer, based on the entirety of monomers and styrene polymer, and likewise the presence of at least one halogenated polymer as flame retardant in the styrene polymer used at the start of the polymerization reaction.. .
12/11/14
20140363705
 Lithium ion battery cell having a capacitance sensor and method for monitoring the condition of a lithium ion battery cell of this type patent thumbnailLithium ion battery cell having a capacitance sensor and method for monitoring the condition of a lithium ion battery cell of this type
A lithium ion battery cell includes a graphite cathode, and an excess pressure valve. The excess pressure valve is configured to open in the presence of a predetermined battery cell internal pressure and discharging gases that have been produced inside the battery cell.
12/11/14
20140362532
 Thermally conductive body and electronic device using same patent thumbnailThermally conductive body and electronic device using same
A thermally conductive body includes an insulating sheet, a first graphite sheet provided on a first surface of the insulating sheet, and a second graphite sheet provided on a second surface that is a reverse side of the first surface of the insulating sheet. Compressibility of the insulating sheet is lower than compressibility of the first graphite sheet and compressibility of the second graphite sheet..
12/11/14
20140360820
 Disc rotor patent thumbnailDisc rotor
Provided is a disc rotor formed of graphite-containing cast iron and having high corrosion resistance. For a disc rotor formed of graphite-containing cast iron, after removal of graphite present adjacent a surface of the disc rotor through a graphite removing treatment, a nitride layer and an oxynitride layer are laminated one after another on the surface through a gas nitrocarburizing treatment..
12/11/14
20140360786
 Lubricants for oil-based and water-based fluids for use in subterranean formation operations patent thumbnailLubricants for oil-based and water-based fluids for use in subterranean formation operations
Methods of treatment subterranean formations including providing a treatment fluid comprising a base fluid and a lubricating agent, wherein the lubricating agent is selected from the group consisting of bismuth dialkyl dithiophosphate; tungsten disulfide; a mixture of micronized graphite and micronized metal disulfide; and any combination thereof; and introducing the treatment fluid into a wellbore in the subterranean formation.. .
12/04/14
20140357758
 Copper-free friction material composition for brake pads patent thumbnailCopper-free friction material composition for brake pads
A copper-free friction material composition for brake pads consists of the following components by weight parts: 0.43 parts of aramid fiber, 1.9 parts of tyre powder, 6 parts of heavy magnesia, 2.55 parts of calcined petroleum coke, 8 parts of ceramic fiber, 6.5 parts of phenolic resin, 14 parts of aluminium silicate fiber, 22 parts of potassium hexatitanate crystal whisker, 25 parts of barite powder, 5 parts of granular graphite, 2 parts of antimony sulfide, 2.8 parts of friction powder of cashew nut oil, 0.9 part of boron nitride, 5 parts of flake aluminum powder, and 0.6 parts of tantalum carbide. The friction material of the present invention is environment-friendly material and contains little heavy metals; hence the friction material is highly environment friendly.
12/04/14
20140356724
 Non-aqueous electrolyte secondary battery patent thumbnailNon-aqueous electrolyte secondary battery
A non-aqueous electrolyte secondary battery comprising a positive electrode plate, a negative electrode being provided with a negative electrode plate mixture layer containing a negative electrode active material, a separator; and a non-aqueous electrolyte. The negative electrode active material is a mixture of at least one of metal silicon and silicon oxide expressed by siox (0.5≦x<1.6) , and graphite material.
12/04/14
20140356707
 Negative electrode active material for rechargeable lithium battery, method for preparing the same and rechargeable lithium battery including the same patent thumbnailNegative electrode active material for rechargeable lithium battery, method for preparing the same and rechargeable lithium battery including the same
The present invention relates to a negative electrode active material for a rechargeable lithium battery, a method for preparing the same, and a rechargeable lithium battery including the same. This invention provides a negative electrode active material for a rechargeable lithium battery, comprising a core part including a spherical graphite, and a coating layer containing a low crystalline carbon material and coated on a surface of the core part, wherein a pore volume of less than or equal to 2000 nm is 0.08 ml/g or less, and a tap density is 1.1 g/cm3 or more..
12/04/14
20140356706
 Secondary battery patent thumbnailSecondary battery
There is provided a negative electrode for a secondary battery that can provide a secondary battery having high charge and discharge efficiency, and a high capacity retention rate in charge and discharge cycles. A negative electrode for a secondary battery according to this exemplary embodiment contains scale-like graphite, a fluorine-based resin, and an imide-based resin.
12/04/14
20140356580
 Compound heat sink patent thumbnailCompound heat sink
The present invention provides a compound heat sink, mainly comprising a graphite layer and a metal layer. The graphite layer has a first embedding structure on a surface; the metal layer has a second embedding structure on a surface and corresponding to the first embedding structure.
12/04/14
20140356277
Production of graphene using electromagnetic radiation
Methods for converting graphite oxide into graphene by exposure to electromagnetic radiation are described. As an example, graphene oxide may be rapidly converted into graphene upon exposure to converged sunlight..
12/04/14
20140355742
Brazed x-ray tube anode
A method (100) creates a braze joint (58) between an anode plate (52) and a piece of graphite (56) of an x-ray tube (38). The method (100) includes receiving (102) the anode plate (52) and the piece of graphite (56).
12/04/14
20140354138
12cao-7al2o3 electride hollow cathode
The use of the electride form of 12cao-7al2o3, or c12a7, as a low work function electron emitter in a hollow cathode discharge apparatus is described. No heater is required to initiate operation of the present cathode, as is necessary for traditional hollow cathode devices.
12/04/14
20140353485
Measurement plate for maldi mass spectrometry
A measurement plate 10 for maldi mass spectrometry consists of a base plate 11 having an upper surface and a carbon sheet 12 laid on at least a portion of the upper surface. The carbon sheet 12 is a highly-oriented graphite sheet with the orientation direction being parallel to the upper surface.
12/04/14
20140353047
Method of making polycrystalline diamond material
A method of making polycrystalline diamond material includes providing a fraction of diamond particles or grains and a sintering additive, the sintering additive comprising a carbon source of nano-sized particles or grains, forming the diamond particles and sintering additive into an aggregated mass, consolidating the aggregated mass and a binder material to form a green body, and subjecting the green body to conditions of pressure and temperature at which diamond is more thermodynamically stable than graphite and for a time sufficient to consume the sintering additive, sintering it and forming polycrystalline diamond material that is thermodynamically and crystallographically stable and is substantially devoid of any nano-structures.. .
12/04/14
20140352851
Spheroidal graphite cast iron having excellent strength and toughness and its production method
A spheroidal graphite cast iron having (a) a composition comprising by mass 3.4-4% of c, 1.9-2.8% of si, 0.02-0.06% of mg, 0.2-1% of mn, 0.2-2% of cu, 0-0.1% of sn, 0.85-3% of (mn+cu+10×sn), 0.05% or less of p, and 0.02% or less of s, the balance being fe and inevitable impurities, and (b) a duplex matrix structure comprising by area 2-40% of fine ferrite phases and 60-98% of fine pearlite phases, the maximum length of the ferrite phases being 300 μm or less, and (c) the pearlite phases being formed around graphite particles dispersed in the duplex matrix structure.. .
11/27/14
20140349191
Electrode material comprising graphene-composite materials in a graphite network
A durable electrode material suitable for use in li ion batteries is provided. The material is comprised of a continuous network of graphite regions integrated with, and in good electrical contact with a composite comprising graphene sheets and an electrically active material, such as silicon, wherein the electrically active material is dispersed between, and supported by, the graphene sheets..
11/27/14
20140349189
Lithium secondary battery
A lithium secondary battery 10 of the present invention is a secondary battery provided with a positive electrode 30 having a positive electrode active material layer 34 on a positive electrode collector 32, and a negative electrode 50 having a negative electrode active material layer 54 on a negative electrode collector 52. The positive electrode active material layer 34 contains a positive electrode active material capable of reversibly storing and releasing lithium ions.
11/27/14
20140349180
Negative electrode active material for rechargeable lithium battery, negative electrode including same, and rechargeable lithium battery including negative electrode
Disclosed are a negative active material for a rechargeable lithium battery including a silicon-based material and graphite, wherein an average particle diameter (d50) of the graphite may range from about 5 μm to about 15 μm, and a raman peak intensity ratio (id/ig) of the graphite may range from about 0.1 to about 0.9, and a negative electrode and a rechargeable lithium battery including the same.. .
11/27/14
20140349173
Graphite particles and lithium secondary battery using the same as negative
A method for forming a negative electrode for a lithium secondary battery, includes providing a paste comprising graphite particulates comprise assembled or bound graphite particles in each of which a plurality of flat-shaped particles are assembled or bound together so that the planes of orientation are not parallel to one another, and the mixture including 3 to 10 parts by weight of the organic binder per 100 parts by weight of the graphite particulates, a binder and a solvent, coating the paste on a current collector, drying the paste coated on the current collector to form a mixture of the graphite particulates and the binder, and integrating the mixture with the current collector by pressing to provide a density of the mixture of graphite particulates and organic binder of 1.5 to 1.9 g/cm3.. .
11/27/14
20140348694
Process for producing spheroidal-graphite cast iron, and spheroidal-graphite cast iron member obtained from said spheroidal-graphite cast iron
A process for producing spheroidal graphite cast iron includes a spheroidization treatment, an inoculant treatment and a pouring inoculation treatment. A molten iron is subjected to the spheroidization treatment using a spheroidizing agent of an fe—si—mg—ca-based alloy which contains a given amount of ba and contains substantially no rare-earth element..
11/27/14
20140345886
Thermally expandable multilayer packing for building material
A thermally expandable multilayer packing for building material, having protruding parts and a body portion in the cross-sectional shape based a plane perpendicular to the longitudinal direction. The thermally expandable multilayer packing includes both a thermally expandable resin composition layer and a thermoplastic resin composition layer, wherein the thermally expandable resin composition forming the thermally expandable resin composition layer contains 100 parts by weight of a resin component containing a chlorinated polyvinyl chloride resin and/or an epdm, 3 to 300 parts by weight of a thermally expandable graphite, 3 to 200 parts by weight of an inorganic filler and 20 to 200 parts by weight of a plasticizer.
11/27/14
20140345843
Dynamic thermal interface material
Aspects of the invention provide compositions that include carbon nanotubes dispersed within nanographite particles, and that have useful thermal properties. Certain compositions have high thermal conductivities (e.g., high thermal conductivities at ambient temperature).
11/20/14
20140342955
Modified lubricant
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 %.
11/20/14
20140342107
Heat shield with outer fiber winding and high-temperature furnace and gas converter having a heat shield
A hollow-cylindrical heat shield includes at least one graphite foil and at least one fiber structure, preferably a wound fiber structure, disposed on the outer side of the at least one graphite foil. The (wound) fiber structure has a degree of coverage of less than 100%.


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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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