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6218050 |
Cabonaceous material for negative electrode of lithium secondary battery and lithium secondary battery using same
Disclosed is carbonaceous material for a negative electrode of a lithium secondary battery and a lithium secondary battery made using the carbonaceous material. The carbonaceous material includes a...
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6207124 |
Lithium intercalation carbon and method for producing same
Disordered carbons were synthesized at 700° C. from methacrylonitrile-divinylbenzene precursors. The disorder, even at the free surface, was confirmed with TEM. These powdered carbons were...
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6200675 |
Diamond-like nanocomposite compositions
The invention relates to an improved diamond-like nanocomposite composition comprising networks of a-C:H and a-Si:O wherein the H-concentration is between 40% and 80% of the C-concentration and...
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6198621 |
Electric double layer capacitor using polarizable electrode of single particle layer
A polarizable electrode includes an collector electrode, and a single particle layer including carbon particles and formed on the collector electrode. A part of each of the carbon particles of the...
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6194344 |
Process for preparing carbonaceous material carrying ultrafinely dispersed metal
A process for the preparation of a high-softening-point pitch rich in mesopores having a softening point measured by temperature gradient method of 150° C. or higher, a weight loss by heating up...
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6184177 |
Method of producing activated carbon particles from spent granular organic ion-exchange resin
A method of processing spent ion-exchange resins contaminated with suspended particles, inorganic residues and/or organic foreign matter so as to render the resin ineffective for continued use, by...
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6162411 |
Production of fullerenic soot in flames
A method for the production of fullerenic nanostructures is described in which unsaturated hydrocarbon fuel and oxygen are combusted in a burner chamber at a sub-atmospheric pressure, thereby...
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6156432 |
Carbon material for negative electrode of secondary lithium battery, process for preparing the same, and secondary lithium battery prepared from said carbon material
In accordance with the present invention, lithium secondary batteries excellent in charge/discharge characteristics, in particular in charge/discharge capacity and initial efficiency, and high in...
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6157043 |
Solenoid comprising a compound nanotube and magnetic generating apparatus using the compound nanotube
A compound nanotube (17) is made of carbon nitride (CN). Another compound nanotube (19) is made of boron carbide (BC 3 ) with alkali metal doped. Each of the nanotubes has a distorted configuration...
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6146611 |
Graphitizable foam preform
The present invention provides an inexpensive, open cell, mechanically robust and graphitizable foam preform. The graphitizable foam is produced via a modified standard flower foam formulation. The...
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6146791 |
Hydrogenated fullerenes as an additive to carbon anode for rechargeable lithium-ion batteries
A rechargeable electrochemical cell comprising a body of aprotic, non-aqueous electrolyte, first and second electrodes in effective electrochemical contact with the electrolyte, the first electrode...
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6143448 |
Electrode materials having carbon particles with nano-sized inclusions therewithin and an associated electrolytic and fabrication process
An electrode for use in an electrolytic cell and an associated process, wherein the electrode includes a current collecting substrate, an electrode active material having at least one component...
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6143268 |
Hydrocarbon treatment of carbonaceous materials
A method for making a carbonaceous material suitable for use as an electrode composition that includes contacting pyrolyzed organic material with hydrocarbon gas for a period and at a temperature...
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6139990 |
Modified graphite particles derived from scaly natural ones, production thereof and secondary battery
There are provided modified and rounded graphite particles derived from scaly natural graphite particles by modification so as to bring their form close to a spherical form and satisfying all the...
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6126864 |
Carbonaceous material having novel electronic structure of surface and method for the preparation thereof
A novel carbonaceous material having a unique periodical annular electronic surface structure as examined by means of a scanning tunnel microscopy can be obtained by the method comprising the steps...
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6114280 |
Highly activated carbon from caustic digestion of rice hull ash and method
Disclosed are highly activated carbon particles derived from caustic digestion of rice hull ash obtained from thermal pyrolysis of rice hulls having an iodine number of at least 650 to 1000. The...
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6103149 |
Method for producing controlled aspect ratio reticulated carbon foam and the resultant foam
A method of manufacturing and the resultant reticulated open cell carbon foam with a controlled aspect ratio between 0.6 to 1.2 throughout the body of the foam billet by controlling the exothermic...
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6090362 |
Method of producing free-flowing carbon
Free-flowing carbon and method of producing that involves combining in an aqueous medium, a thermosetting resin carbon precursor and optionally additional carbon precursor which can be petroleum...
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6083469 |
Pyrolysis process for making fullerenes
Solid fullerite, comprising a mixture of C 60 and C 70 fullerenes and higher molecular weight carbon nanotropes, is produced by high temperature, short residence time, pyrolysis of a mixture of...
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6077401 |
Production of fullerenes using concentrated solar flux
A method of producing soot containing high amounts of fullerenes comprising: providing a primary concentrator capable of impingement of a concentrated beam of sunlight onto a carbon source to cause...
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6071613 |
Fiber reinforced cementitious materials with improved toughness and ductility
A hybrid fiber reinforcing system that enhances ductility of concrete at small and large crack openings, while avoiding the necessity of using steel fibers at high (e.g., 1%) volumes, by taking...
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6060424 |
High energy density carbons for use in double layer energy storage devices
The present invention relates to carbon and methods for preparing same. In particular, this invention relates to the preparation of novel carbons derived from lignocellulosic materials...
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6045769 |
Process for carbon production
A method for the production of elemental carbon fibers and carbon particles uses highly uniform catalyst particles, preferably made by laser pyrolysis. Preferred catalyst particles include...
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6044663 |
Impregnated vitreous (glassy) carbon graphite liner and heating element for a fiber optic draw furnace
The present invention provides an improvement to a fiber optic draw furnace for drawing an optical fiber from a preform. The fiber optic draw furnace has a heating element having a shape for...
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6042801 |
Method for baking or calcination of shaped carbon bodies in a furnace
The present invention concerns a method for baking or calcination of shaped carbon bodies in a furnace and a packing material for use in the same. In accordance with the method, carbon bodies are...
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6040266 |
Foam catalyst support for exhaust purification
A method of producing an acoustic baffle/catalyst foam support material and the resultant material. A polyurethane open cell foam material is provided having a density between 10-100 ppi. The...
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6036934 |
Chemically modified carbonaceous materials made by the defluorination of graphite fluoride and process therefor
A method of making chemically modified carbon-based materials for engineering purposes from a precursor containing graphite fluoride by using halocarbons or elemental sulfur as chemical agents that...
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6024899 |
Method of making mesoporous carbon using pore formers
A method of making mesoporous carbon involves combining a carbon precursor and a pore former. At least a portion of the pore former dissolves molecularly in the carbon precursor. The pore former...
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6022518 |
Surface graphitized carbon material and process for producing the same
A surface graphitized carbon material comprising a graphitic surface and a carbonaceous internal part. This surface graphitized carbon material can be produced by contacting a carbon material with...
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5993697 |
Metallic carbon materials
Novel metallic forms of planar carbon are described, as well as methods of designing and making them. Nonhexagonal arrangements of carbon are introduced into a graphite carbon network essentially...
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5985446 |
Acetylenic carbon allotrope
A fourth allotrope of carbon, an acetylenic carbon allotrope, is described. The acetylenic carbon allotropes of the present invention are more soluble than the other known carbon allotropes in many...
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5977016 |
Process for producing granulated activated carbon
Granulated activated carbon is produced by an improved process which involves carbonizing pellets of a styrene-divinyl benzene copolymer matrix with concentrated sulfuric acid at temperatures up to...
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5972506 |
Intercalation compounds, method for preparing them and use thereof, particularly in pyrotechnics
An intercalation compound of general formula Na x K 1 -X Z y , wherein Z is a carbon or a polymer with a cyclic, particularly aromatic unit, as base unit; 0<x<1 and 2≤y≤6. A method for...
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5968471 |
Process for producing molecular sieve carbon
A process for producing a molecular sieve carbon, which comprises subjecting a cured product obtained by curing a raw material thermosetting resin to heat oxidation; pulverizing the oxidized...
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5965055 |
Elemental metals, oxides, or alloys distributed on a carbon substrate or self-supported and process therefor
A plurality of processes for producing unique end products containing elemental metals or metal oxides on and in a carbon substrate, elemental metals or metal oxides in the absence of such a carbon...
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5965267 |
Method for producing encapsulated nanoparticles and carbon nanotubes using catalytic disproportionation of carbon monoxide and the nanoencapsulates and nanotubes formed thereby
A method for the production of carbon encapsulated nanoparticles, carbon nanotubes and other closed carbon structures, including contacting a catalyst of a transition metal, or a compound or alloy...
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5965297 |
Electrode materials having carbon particles with nano-sized inclusions therewithin and an associated electrochemical and fabrication process
An electrode for use in an electrolytic cell and an associated process, wherein the electrode includes a current collecting substrate, an electrode active material having at least one component...
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5961814 |
Pitch foam products
An improved process for the preparation of a pitch foam with a microcellular structure and a uniform pore size comprises the steps of (a) pressing a quantity of a pitch to provide a pressed...
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5958622 |
Negative electrode material for lithium secondary batteries
A negative electrode material capable of absorbing and desorbing lithium is comprised of a mixture of coke and graphite. The amount of graphite in the mixture is near to that which induces...
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5958831 |
SiC foam catalyst carrier with a reinforced skin and corresponding catalytic systems
SiC foam-based catalyst carrier in the form of a moulded part having walls reinforced with a SiC skin having mechanical characteristics higher than those of the foam, this skin allowing the carrier...
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5955375 |
Production of coal derivation products utilizing NMP-type solvent extraction
A graphite of anisotrophy selected between substantially isotropic to highly anisotropic, or calcined coke graphitizable to such a graphite, or a pitch convertible into such a coke or graphite, is...
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5945084 |
Low density open cell organic foams, low density open cell carbon foams, and methods for preparing same
This pertains to the general field of gels, foams, and aerogels, particularly, to low density open cell organic foams and low density open cell carbon foams, and methods for preparing them. These...
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5932349 |
Substrate for magnetic recording medium
A substrate for magnetic recording medium, consisting essentially of a vitreous carbon produced from a polycarbodiimide resin; and a process for producing a substrate for magnetic recording medium,...
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5932185 |
Method for making thin carbon foam electrodes
A method for fabricating thin, flat carbon electrodes by infiltrating highly porous carbon papers, membranes, felts, metal fibers/powders, or fabrics with an appropriate carbon foam precursor...
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5925465 |
Carbon material originating from graphite and method of producing same
A novel carbon material is obtained by bending at least one carbon atom layer of graphite in at least one selected region along either, or both, of lines I and II in FIG. 1. The bending can be...
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5925591 |
Process for the production of hollow carbon fiber membranes
A process for manufacturing a bundle of hollow carbon membranes comprising the steps of: (a) providing a bundle of hollow cellulose fibers; (b) removing substantially all the absorbed water from...
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5919589 |
Rechargeable battery
Disclosed is a rechargeable battery comprising an anode, a separator, a cathode, an electrolyte, and a battery housing accommodating the members, the battery being of a type utilizing intercalating...
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5906900 |
Non-aqueous solvent secondary battery electrode material and process for preparing the same
Disclosed are an electrode material for a non-aqueous solvent secondary battery, which comprises a composite carbonaceous material in which to the surface of a graphite carbonaceous material is...
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5902562 |
Method for the preparation of high surface area high permeability carbons
A method for preparing carbon materials having high surface area and high macropore volume to provide high permeability. These carbon materials are prepared by dissolving a carbonizable polymer...
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5900189 |
Needle coke for graphite electrodes and process for producing same
The present invention provides a needle coke for graphite electrodes, wherein a needle coke, used as a raw material coke, comprises a coke of 100 parts by weight, to which adheres a substance of...
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