With Metal Compound Patents (Class 252/506)
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Publication number: 20120207994Abstract: Embodiments presented herein provide a new approach for high-performance lithium-sulfur battery by using novel carbon-metal oxide-sulfur composites. The composites may be prepared by encapsulating sulfur particles in bifunctional carbon-supported metal oxide or other porous carbon-metal oxide composites. In this way, the porous carbon-metal oxide composite confines sulfur particles within its tunnels and maintain the electrical contact during cycling. Furthermore, the uniformly embedded metal oxides in the structure strongly adsorb polysulfide intermediates, avoid dissolution loss of sulfur, and ensure high coulombic efficiency as well as a long cycle life.Type: ApplicationFiled: February 13, 2012Publication date: August 16, 2012Inventors: Donghai Wang, Zhongxue Chen, Tianren Xu
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Publication number: 20120205595Abstract: Process for producing electrode materials, wherein (a) (A) iron or at least one iron compound in which Fe is present in the oxidation state zero, +2 or +3, (B) silicon or at least one silicon compound selected from among silicon halides, silicon carbide, SiO, silica gels, silicic acid and silanes having at least one alkyl group or at least one alkoxy group per molecule, (C) at least one lithium compound, (D) at least one carbon source which can be a separate carbon source or at the same time at least one iron compound (A) or silicon compound (B) or lithium compound (C), (E) optionally at least one reducing agent, (F) optionally at least one compound which has a transition metal or metal other than iron of groups 3 to 13 of the Periodic Table of the Elements, (G) optionally water or at least one organic solvent, are mixed with one another, (b) the mixture thus obtained is dried convectively and (c) thermally treated at temperatures in the range from 400 to 1200° C.Type: ApplicationFiled: February 10, 2012Publication date: August 16, 2012Applicant: BASF SEInventors: Martin SCHULZ-DOBRICK, Bastian EWALD, Hartmut HIBST, Jordan Keith LAMPERT
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Patent number: 8226856Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive silver paste for use in the front side of a solar cell device.Type: GrantFiled: October 20, 2008Date of Patent: July 24, 2012Assignee: E I Du Pont de Nemours and CompanyInventors: Alan Frederick Carroll, Kenneth Warren Hang
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Patent number: 8227685Abstract: A graphene sheet including an intercalation compound and 2 to about 300 unit graphene layers, wherein each of the unit graphene layers includes a polycyclic aromatic molecule in which a plurality of carbon atoms in the polycyclic aromatic molecule are covalently bonded to each other; and wherein the intercalation compound is interposed between the unit graphene layers.Type: GrantFiled: February 17, 2010Date of Patent: July 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Jae-young Choi
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Publication number: 20120183770Abstract: The present invention relates to the exfoliation and dispersion of carbon nanotubes resulting in high aspect ratio, surface-modified carbon nanotubes that are readily dispersed in various media. A method is disclosed for their production in high yield. Further modifications by surface active or modifying agents are also disclosed. Application of the carbon nanotubes of this invention as composites with materials such as elastomers, thermosets and thermoplastics are also described.Type: ApplicationFiled: June 20, 2011Publication date: July 19, 2012Inventors: Clive P. Bosnyak, Kurt W. Swogger
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Publication number: 20120183860Abstract: Disclosed is a negative electrode active material which has a high capacity and good cyclability. The negative electrode active material comprises nanosize carbon particles and nanosize tin dioxide particles that are supported in a high-dispersion state on the nanosize carbon particles. The negative electrode active material has a high discharge capacity because of the reversible progress of a conversion reaction of tin dioxide (SnO2+4Li++4e??2Li2O+Sn) therein. In a charge-discharge cycle test within a voltage range of 0 to 2 V vs. an Li/Li+ electrode, the negative electrode active material shows a discharge capacity retention rate of about 90% even after 500 charge-discharge cycles at the rate 1 C, which indicates excellent cyclability. Therefore, the negative electrode active material can be suitably used in a lithium ion secondary battery and a hybrid capacitor.Type: ApplicationFiled: September 29, 2010Publication date: July 19, 2012Inventors: Katsuhiko Naoi, Wako Naoi, Shuichi Ishimoto, Kenji Tamamitsu
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Publication number: 20120178002Abstract: Electrodes and production and use thereof Electrodes, comprising (A) a solid medium through which gas can diffuse, (B) at least one electrically conductive, carbonaceous material, (C) at least one organic polymer, (D) at least one compound of the general formula (I) M1aM2bM3cM4dHeOf ??(I) in particulate form, where the variables are each defined as follows: M1 is selected from Mo, W, V, Nb and Sb, M2 is selected from Fe, Ag, Cu, Ni, Mn and lanthanoids, M3 is selected from B, C, N, Al, Si, P and Sn, M4 ist selected from Li, Na, K, Rb, Cs, NH4, Mg, Ca and Sr, a is in the range from 1 to 3, b is in the range from 0.1 to 10, c is in the range from zero to one, d is in the range from zero to one, e is in the range from zero to 5, f is in the range from 1 to 28, and wherein compound of the general formula (I) has a BET surface area in the range from 1 to 300 m2/g.Type: ApplicationFiled: June 21, 2011Publication date: July 12, 2012Applicant: BASF SEInventors: Arnd GARSUCH, Alexander PANCHENKO, Andrey KARPOV, Rüdiger SCHMIDT, Sabine HUBER
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Publication number: 20120168686Abstract: The invention relates to a continuous process for preparing carbon-coated lithium-iron-phosphate particles, wherein the carbon-coated lithium-iron-phosphate particles have a mean (d50) particle size of 10 to 150 nm, and wherein the carbon-coating is an acetylene-black coating, comprising performing in a reactor a flame-spray pyrolysis step (i) in a particle formation zone of the reactor, and a carbon-coating step (ii) in a carbon-coating zone of the reactor, wherein in (i) a combustible organic solution containing a mixture of lithium or a lithium compound; iron or an iron compound; and phosphorus or a phosphorous compound in an organic solvent, is fed through at least one nozzle where said organic solution is dispersed, ignited and combusted, to give a flame spray thereby forming an aerosol of lithium iron phosphate particles; (ii) acetylene gas is injected into said aerosol thereby forming an acetylene-black coating on the lithium iron phosphate particles; (iii) the coated particles are cooled by an inerType: ApplicationFiled: August 24, 2010Publication date: July 5, 2012Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Hans Joachim Metz, Oliver Waser, Robert Buechel, Sotiris E Pratsinis
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Publication number: 20120168687Abstract: In one embodiment of the present disclosure, a composite electrode for a battery is provided. The composite electrode includes silver vanadium oxide present in an amount from about 75 weight percent to about 99 weight percent and polypyrrole present in an amount from about 1 weight percent to about 25 weight percent.Type: ApplicationFiled: March 5, 2012Publication date: July 5, 2012Applicant: UNIVERSITY OF SOUTH CAROLINAInventors: Branko N. Popov, Jong-Won Lee
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Publication number: 20120171560Abstract: The present invention provides composite anodes comprising particles composed of silicon and lithium silicate, active and inactive anode materials, and binders, for lithium rechargeable batteries, wherein the particles composed of silicon and lithium silicate are prepared via treating silicon particles with lithium hydroxide in a wet process. Cycle life and characteristics and capacity of a secondary battery adopting the composite anode can be greatly improved.Type: ApplicationFiled: February 1, 2012Publication date: July 5, 2012Applicant: ELECTROCHEMICAL MATERIALS, LLCInventors: WANLI XU, JOHN C. FLAKE
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Patent number: 8211594Abstract: A composition comprising an admixture of at least platinum particles and metal nanoparticles of metal that, when in admixture with the platinum particles, beneficially alters the characteristics of the platinum, including metals selected from one or more of the metals in groups 3-16, lanthanides, combinations thereof, and/or alloys thereof. The composition could be used to form an ink that further comprises an ionically conductive material, such as a polymer, capable of ionic networking throughout the ink composition so as to create a substantially structurally coherent mass without significantly impacting the reactivity of a substantial number of the nanoparticles. In one application, the ink may be used to form a catalyst whereby the ink is applied to an electrically conductive backing material, such as carbon paper or fibers.Type: GrantFiled: May 18, 2011Date of Patent: July 3, 2012Assignee: QuantumSphere, Inc.Inventors: Kimberly McGrath, R. Douglas Carpenter
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Publication number: 20120164531Abstract: An energy storage composite particle is provided, which includes a carbon film, a conductive carbon component, an energy storage grain, and a conductive carbon fiber. The carbon film surrounds a space. The conductive carbon component and the energy storage grain are disposed in the space. The conductive carbon fiber is electrically connected to the conductive carbon component, the energy storage grain, and the carbon film, and the conductive carbon fiber extends from the inside of the space to the outside of the space. The energy storage composite particle has a high gravimetric capacity, a high coulomb efficiency, and a long cycle life. Furthermore, a battery negative electrode material and a battery using the energy storage composite particle are also provided.Type: ApplicationFiled: September 9, 2011Publication date: June 28, 2012Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jin-Ming Chen, Yen-Po Chang, Shih-Chieh Liao, Chi-Ju Cheng
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Publication number: 20120164777Abstract: The invention relates to a composition for printing conductor tracks onto a substrate, especially for solar cells, using a laser printing process, which composition comprises 30 to 90% by weight of electrically conductive particles, 0 to 7% by weight of glass frit, 0 to 8% by weight of at least one matrix material, 0 to 8% by weight of at least one organometallic compound, 0 to 5% by weight of at least one additive and 3 to 69% by weight of solvent. The composition further comprises 0.5 to 15% by weight of nanoparticles as absorbents for laser radiation, which nanoparticles are particles of silver, gold, platinum, palladium, tungsten, nickel, tin, iron, indium tin oxide, titanium carbide or titanium nitride. The composition comprises not more than 1% by weight of elemental carbon.Type: ApplicationFiled: August 25, 2010Publication date: June 28, 2012Applicant: BASF SEInventors: Frank Kleine Jaeger, Stephan Hermes
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Publication number: 20120161081Abstract: The invention relates to a composition for printing electrodes on a substrate, comprising 30 to 90% by weight of electrically conductive particles, 0 to 7% by weight of glass frit, 0.1 to 5% by weight of at least one absorbent for laser radiation, 0 to 8% by weight of at least one matrix material, 0 to 8% by weight of at least one organometallic compound, 3 to 50% by weight of water as a solvent, 0 to 65% by weight of at least one retention aid and 0 to 5% by weight of at least one additive, based in each case on the total mass of the composition. The invention further relates to a use of the composition.Type: ApplicationFiled: September 1, 2010Publication date: June 28, 2012Applicant: BASF SEInventors: Frank Kleine Jaeger, Stephan Hermes, Juergen Kaczun
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Publication number: 20120153233Abstract: The thermoplastic molding composition comprises, based on the thermoplastic molding composition, a) at least one polyamide, copolyamide or a polyamide-comprising polymer blend as component A, b) from 0.1 to 10% by weight of carbon nanotubes, graphenes or mixtures thereof as component B, c) from 0.1 to 3% by weight of ionic liquids as component C, wherein the thermoplastic molding composition does not comprise any polyamide-12 units.Type: ApplicationFiled: December 21, 2011Publication date: June 21, 2012Applicant: BASF SEInventors: Cecile Gibon, Xin Yang, Christof Kujat, Martin Weber, Laszlo Szarvas, Daniel Klein, Petra Poetschke, Beate Krause
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Publication number: 20120153232Abstract: The thermoplastic molding composition comprises, based on the thermoplastic molding composition, a) as component A, at least one polyamide or copolyamide, or one polymer blend comprising polyamide, b) as component B, from 3 to 20% by weight of carbon black or graphite, or a mixture thereof, c) as component C, from 0.1 to 3% by weight of ionic liquids.Type: ApplicationFiled: December 13, 2011Publication date: June 21, 2012Applicant: BASF SEInventors: Cecile Gibon, Xin Yang, Christof Kujat, Martin Weber, Laszlo Szarvas, Daniel Klein, Petra Poetschke, Beate Krause
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Publication number: 20120146464Abstract: The present invention provides a flexible conductive crosslinked body excellent in durability having a small influence of a reaction residue after the crosslinking on an object to which the conductive crosslinked body adheres, and a production process of the flexible conductive crosslinked body. The conductive crosslinked body is synthesized from a conductive composition containing a rubber polymer, an organic metal compound, and a conducting agent and has a crosslinked structure. The production process of the conductive crosslinked body includes: a mixed solution preparing step for preparing a mixed solution in which the rubber polymer, the conducting agent, and the organic metal compound are mixed in a solvent capable of dissolving the rubber polymer and capable of chelating the organic metal compound; and a crosslinking step for removing the solvent from the mixed solution to allow a crosslinking reaction to proceed.Type: ApplicationFiled: February 22, 2011Publication date: June 14, 2012Applicant: TOKAI RUBBER INDUSTRIES, LTD.Inventors: Jun Kobayashi, Hitoshi Yoshikawa, Wataru Takahashi
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Publication number: 20120138867Abstract: The present invention relates to a process for the synthesis of a carbon-deposited alkali metal oxyanion cathode material comprising particles, wherein said particles carry, on at least a portion of the particle surface, carbon deposited by pyrolysis, said process comprising a dry high-energy milling step performed on precursors of said carbon-deposited alkali metal oxyanion prior to a solid-state thermal reaction.Type: ApplicationFiled: November 11, 2011Publication date: June 7, 2012Applicant: PHOSTECH LITHIUM INC.Inventors: Guoxian LIANG, Jasmin Dufour, Michael Holzapfel, Christophe Michot
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Publication number: 20120142836Abstract: Provided are an insulated ultrafine powder obtained by adding liquid metal alkoxide to a methanol-containing organic solvent in which a conductive ultrafine powder comprising a carbon material is dispersed and further adding water thereto and a method for producing the same. Also, provided are an insulated ultrafine powder obtained by adding liquid metal alkoxide to a methanol-containing organic solvent in which a conductive ultrafine powder comprising a carbon material is dispersed, further adding a coupling agent having an alkoxide group and then adding water thereto and a method for producing the same. Further, provided is a high dielectric constant resin composite material obtained by blending the insulated ultrafine powder of the present invention with a resin in a volume ratio (insulated ultrafine powder/resin) falling in a range of 5/95 to 50/50.Type: ApplicationFiled: July 9, 2010Publication date: June 7, 2012Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Takahiro Matsumoto, Hirotaka Tsuruya, Hajime Ban, Reiki Akita
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Patent number: 8192595Abstract: A transition metal/carbon nanotube composite includes a carbon nanotube and a transition metal oxide coating layer disposed on the carbon nanotube. The transition metal oxide coating layer includes a nickel-cobalt oxide.Type: GrantFiled: December 2, 2009Date of Patent: June 5, 2012Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Ho-jung Yang, Hyo-rang Kang, Kwang-bum Kim, Jin-go Kim
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Publication number: 20120132898Abstract: The present invention relates to compositions comprising functionalized or un-functionalized multi cyclic hydrocarbons and functional organic compounds, which can be used in different electronic devices. The invention further relates to an electronic device comprising one or more organic functional layers, wherein at least one of the layers comprises at least one functionalized or un-functionalized multi cyclic hydrocarbon. Another embodiment of the present invention relates to a formulation comprising functionalized or un-functionalized multi cyclic hydrocarbons, from which a thin layer comprising at least one functionalized or un-functionalized multi cyclic hydrocarbon can be formed.Type: ApplicationFiled: July 7, 2010Publication date: May 31, 2012Applicant: Merck Patent GmbHInventors: Junyou Pan, Thomas Eberle, Herwig Buchholz
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Publication number: 20120132860Abstract: A process for preparing transition metal mixed oxide precursors, including: (A) precipitating, from aqueous solution at a pH of 8.0 to 9.0, a compound of formula (I): M(CO3)bOc(OH)dAmBe(SO4)fXg(PO4)h??(I), wherein: M is one or more transition metals, A is sodium or potassium, B is one or more metals of groups 1 to 3, excluding Na and potassium, X is halide, nitrate or carboxylate, b is 0.75 to 0.98, c is zero to 0.50, d is zero to 0.50, where the sum (c+d) is 0.02 to 0.50, e is zero to 0.1, f is zero to 0.05, g is zero to 0.05, h is zero to 0.10, m is 0.002 to 0.1, and (B) separating the precipitated material from the mother liquor, where the particles of material of formula (I) have a spherical shape.Type: ApplicationFiled: November 22, 2011Publication date: May 31, 2012Applicant: BASF SEInventors: Martin SCHULZ-DOBRICK, Simon Schrödle
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Publication number: 20120132861Abstract: The electrode material includes metal oxide nanoparticles formed by applying shear force and centrifugal force to reactants containing a reaction inhibitor in a rotating reaction vessel during a chemical reaction; and carbon nanotubes with a specific area of 600 to 2600 m2/g to which shear force and centrifugal force are applied for dispersion in the rotating reaction vessel during the chemical reaction. The metal oxide particles are highly dispersed and carried on the carbon nanotubes. Preferably, the metal oxide is lithium titanate.Type: ApplicationFiled: March 8, 2010Publication date: May 31, 2012Inventors: Kenji Tamamitsu, Shuichi Ishimoto, Katsuhiko Naoi, Wako Naoi, Hiroako Hatori, Kenji Hata, Motoo Yumura
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Patent number: 8187507Abstract: A method for producing a GaN crystal capable of achieving at least one of the prevention of nucleation and the growth of a high-quality non-polar surface is provided. The production method of the present invention is a method for producing a GaN crystal in a melt containing at least an alkali metal and gallium, including an adjustment step of adjusting the carbon content of the melt, and a reaction step of causing the gallium and nitrogen to react with each other. According to the production method of the present invention, nucleation can be prevented, and as shown in FIG. 4, a non-polar surface can be grown.Type: GrantFiled: November 14, 2007Date of Patent: May 29, 2012Assignee: Osaka UniversityInventors: Yusuke Mori, Takatomo Sasaki, Fumio Kawamura, Masashi Yoshimura, Minoru Kawahara, Yasuo Kitaoka, Masanori Morishita
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Publication number: 20120126182Abstract: A lithium/fluorinated carbon (Li/CFx) battery having a composite cathode including an electroactive cathode material, a non-electroactive additive, a conductive agent, and a binder. The electroactive cathode material is a single fluorinated carbon having a general formula of CFx, whereby x is an averaged value ranging from about 0.5 to about 1.2. The non-electroactive additive is at least one or a mixture of two or more oxides selected from the group comprising Mg, B, Al, Si, Cu, Zn, Y, Ti, Zr, Fe, Co, or Ni. The conductive agent is selected from the group comprising carbon, metals, and mixtures thereof. Finally, the binder is an amorphous polymer selected from the group comprising fluorinated polymers, ethylene-propylene-diene (EPDM) rubbers, styrene butadiene rubbers (SBR), poly (acrylonitrile-methyl methacrylate), carboxymethyl celluloses (CMC), and polyvinyl alcohol (PVA).Type: ApplicationFiled: August 10, 2011Publication date: May 24, 2012Applicant: U.S. Government as reperesented by the Secretary of the ArmyInventors: SHENGSHUI ZHANG, DONALD L. FOSTER, JEFFERY WOLFENSTINE, JEFFERY A. READ
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Publication number: 20120129033Abstract: In accordance with the present invention, a powdery material and a positive electrode mixture for providing a nonaqueous electrolyte secondary battery capable of exhibiting a higher output under high current rate conditions are provided. The powdery material according to the present invention comprises a positive electrode active material powder having an average particle diameter of from 0.05 ?m to 1 ?m and two or more types of graphite powder wherein the average particle diameters of the two or more types of the graphite powder are different from each other and each graphite powder has an average particle diameter of from 0.01 ?m to 20 ?m. The positive electrode mixture according to the present invention comprises the powdery material, a binder, and a solvent.Type: ApplicationFiled: August 2, 2010Publication date: May 24, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Kazuyuki Tanino
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TRANSPARENT INTERMEDIATE TRANSFER MEMBERS CONTAINING ZINC OXIDE, POLYARYLSULFONE, AND POLYETHERAMINE
Publication number: 20120119160Abstract: An intermediate transfer member including an optional supporting substrate, and in contact with the supporting substrate in the configuration of a layer a polyarylsulfone, a polyetheramine, and nano-size zinc oxide particles.Type: ApplicationFiled: November 16, 2010Publication date: May 17, 2012Applicant: XEROX CORPORATIONInventor: Yuhua TONG -
Publication number: 20120119161Abstract: A cathode active material for a metal-sulfur battery is provided. By using a cathode active material for a metal-sulfur battery comprising a sulfur-carbon composite composed of composited spherical sulfur compound particle and carbon material particle, electric conductivity of the cathode for a lithium-sulfur battery is increased to improve initial capacity close to theoretical capacity and polysulfide lost in the cathode during charging and discharging is minimized to increase sulfur utilization. Reaction between a metal anode and the polysulfide is minimized to increase life span and stability of the metal-sulfur battery.Type: ApplicationFiled: June 29, 2011Publication date: May 17, 2012Applicant: HYUNDAI MOTOR COMPANYInventors: Sam Ick Son, Hee Yeon Ryu, Ki Chun Lee
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Patent number: 8178006Abstract: A fiber aggregate contains fine carbon fibers and fine boron nitride fibers. Desirably the boron nitride fibers form an outer layer portion of the fiber aggregate and the fine carbon fibers form a core portion of the fiber aggregate. Desirably the fine carbon fibers and the fine boron nitride fibers are twisted with each other. Desirably the fine carbon fibers are carbon nanotubes and the fine boron nitride fibers are boron nitride nanotubes. Desirably the fiber aggregate further contains boron-containing fine carbon fibers. The fine boron nitride fibers are formed by substituting carbon atoms of fine carbon fibers by boron atoms and nitrogen atoms. The fiber aggregate is fabricated by mixing a fiber aggregate that contains fine carbon fibers with boron and heating the fiber aggregate mixed with the boron in a nitrogen atmosphere to transform some of the fine carbon fibers into fine boron nitride fibers.Type: GrantFiled: February 20, 2009Date of Patent: May 15, 2012Assignee: DENSO CORPORATIONInventors: Tomohiro Shimazu, Yoshinobu Suzuki, Hisayoshi Oshima
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Publication number: 20120115031Abstract: A paste suitable for a negative plate of a lead-acid battery comprises lead oxide and composite particles comprising carbon and silica.Type: ApplicationFiled: November 4, 2011Publication date: May 10, 2012Applicant: CABOT CORPORATIONInventors: Paolina ATANASSOVA, Berislav BLIZANAC, Toivo KODAS, Mark HAMPDEN-SMITH, Miodrag OLJACA
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Patent number: 8173049Abstract: The present invention concerns electrode materials capable of redox reactions by electrons and alkali ions exchange with an electrolyte. The applications are in the field of primary (batteries) or secondary electrochemical generators, super capacitors and light modulating system of the super capacitor type.Type: GrantFiled: November 22, 2010Date of Patent: May 8, 2012Assignees: ACEP Inc., University de Montreal, Centre National de la Recherche ScientifiqueInventors: Nathalie Ravet, Simon Besner, Martin Simoneau, Alain Vallee, Michel Armand, Jean-Francois Magnan
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Publication number: 20120104327Abstract: A spinel-type lithium titanium oxide/graphene composite and a method of preparing the same are provided. The method can be useful in simplifying a manufacturing process and shortening a manufacturing time using microwave associated solvothermal reaction and post heat treatment, and the spinel-type lithium titanium oxide/graphene composite may have high electrochemical performances due to its excellent capacity and rate capability and long lifespan, and thus be used as an electrode material of the lithium secondary battery.Type: ApplicationFiled: October 10, 2011Publication date: May 3, 2012Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Kwang Bum KIM, Hyun Kyung KIM, Ji Young KIM
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Publication number: 20120103670Abstract: Articles comprising a composition comprising a polymeric binder and at least one carbonaceous filler, wherein the article has a compositional gradient such that the concentration of the filler is increased or decreased in at least one direction in the article. Methods for their preparation and structures comprising the articles are also described.Type: ApplicationFiled: June 30, 2009Publication date: May 3, 2012Applicant: VORBECK MATERIALS CORP.Inventor: John S. Lettow
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Publication number: 20120107683Abstract: A composite of electrode active material including aggregates formed by self-assembly of electrode active material nanoparticles and carbon nanotubes, and a fabrication method thereof are disclosed. This composite is in the form of a network in which at least some of the carbon nanotubes connect two or more aggregates that are not directly contacting each other, creating an entangled structure in which a plurality of aggregates and a plurality of carbon nanotube strands are intertwined. Due to the highly conductive properties of the carbon nanotubes in this composite, charge carriers can be rapidly transferred between the self-assembled aggregates. This composite may be prepared by preparing a dispersion in which the nanoparticles and/or carbon nanotubes are dispersed without any organic binders, simultaneously spraying the nanoparticles and the carbon nanotubes on a current collector through electrospray, and then subjecting the composite material formed on the current collector to a heat treatment.Type: ApplicationFiled: October 20, 2011Publication date: May 3, 2012Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Il Doo KIM, Jin Hoon CHOI
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Publication number: 20120097901Abstract: The present invention relates to a process for the preparation of particles comprising at least one compound according to general formula (I) M1aM2bM3cOoNnFf (I) wherein M1, M2, M3 O, N, F, a, b, c, o, n and f have the following meanings: M1 at least one alkaline metal, M2 at least one transition metal in oxidation state +2, M3 at least one non-metal chosen form S, Se, P, As, Si, Ge and/or B, O oxygen, N nitrogen, F fluorine, a 0.8-4.2, b 0.8-1.9, c 0.8-2.2, o 1.0-8.4, n 0-2.0 and f 0-2.Type: ApplicationFiled: June 23, 2010Publication date: April 26, 2012Applicant: BASF SEInventors: Simon Schroedle, Hartmut Hibst, Brian Roberts, Kirill Bramnik, Jordan Keith Lampert
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Publication number: 20120100402Abstract: Described is an electrode comprising and preferably consisting of electronically active material (EAM) in nanoparticulate form and a matrix, said matrix consisting of a pyrolization product with therein incorporated graphene flakes and optionally an ionic lithium source. Also described are methods for producing a particle based, especially a fiber based, electrode material comprising a matrix formed from pyrolized material incorporating graphene flakes and rechargeable batteries comprising such electrodes.Type: ApplicationFiled: October 20, 2011Publication date: April 26, 2012Applicant: BELENOS CLEAN POWER HOLDING AGInventors: Reinhard Nesper, Tommy Kaspar, Yoann Mettan
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Publication number: 20120100426Abstract: Provided is a lithium secondary battery which has excellent low-temperature power output characteristics by the inclusion of a given amount of a lithium metal oxide and/or a lithium metal sulfide in an anode mix for a lithium secondary battery containing a carbon-based anode active material and is thereby capable of being used as a power source for electric vehicles (EVs) and hybrid electric vehicles (HEVs) that must provide high-power output at low temperatures as well as at room temperature.Type: ApplicationFiled: January 5, 2012Publication date: April 26, 2012Inventors: Jim KIM, Suk Myung Roh, Youngjoon Shin, Sunjung Hwang
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Publication number: 20120094178Abstract: Composite electrode material for a rechargeable battery cell includes an electroactive material; and a polymeric binder including pendant carboxyl groups, characterised in that (i) the electroactive material includes one or more components selected from the group including an electroactive metal, an electroactive semi-metal, an electroactive ceramic material, an electroactive metalloid, an electroactive semi-conductor, an electroactive alloy of a metal, an electroactive alloy of a semi metal and an electroactive compound of a metal or a semi-metal, (ii) the polymeric binder has a molecular weight in the range 300,000 to 3,000,000 and (iii) 50 to 90% of the carboxyl groups of the polymeric binder are in the form of a metal ion carboxylate salt. A method of making a composite electrode material, an electrode, cells including electrodes and devices using such cells are also disclosed.Type: ApplicationFiled: November 1, 2011Publication date: April 19, 2012Inventors: Melanie J. Loveridge, Michael Jonathan Lain, Fazlil Coowar, Mamdouh Elsayed Abdelsalam
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Publication number: 20120091400Abstract: The present invention relates to a process for producing a nanocomposite material from a) at least one inorganic or organometallic metal phase; and b) an organic polymer phase; comprising the polymerization of at least one monomer M which have at least one first polymerizable monomer unit A which has a metal or semimetal M, and at least one second polymerizable organic monomer unit B which is joined to the polymerizable unit A via a covalent chemical bond, under polymerization conditions under which both the polymerizable monomer unit A and the polymerizable unit B polymerize with breakage of the bond between A and B, the monomers M to be polymerized comprising a first monomer M1 and at least one second monomer M2 which differs at least in one of the monomer units A and B from the monomer M1 (embodiment 1), or the monomers to be polymerized comprising, as well as the at least one monomer M, at least one further monomer other than the monomers M, i.e.Type: ApplicationFiled: April 1, 2010Publication date: April 19, 2012Applicant: BASF SEInventors: Hannah Maria König, Hans-Joachim Hähnle, Arno Lange, Samira Nozari, Gerhard Cox, Rainer Dyllick-Brenzinger, Stefan Spange, Tina Löschner
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Publication number: 20120085975Abstract: The invention relates to crystalline nanometric olivine-type LiFe1-xMxPO4 powder with M being Co and/or Mn, and 0?x?1, with small particle size and narrow particle size distribution. A direct precipitation process is described, comprising the steps of: providing a water-based mixture having at a pH between 6 and 10, containing a dipolar aprotic additive, and Li(I), Fe(II), P(V), and Co(II) and/or Mn(II) as precursor components; heating said water-based mixture to a temperature less than or equal to its boiling point at atmospheric pressure, thereby precipitating crystalline LiFe1-xMxPO4 powder. An extremely fine particle size is obtained of about 80 nm for Mn and 275 nm for Co, both with a narrow distribution.Type: ApplicationFiled: October 6, 2011Publication date: April 12, 2012Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UMICOREInventors: Stephane LEVASSEUR, Michèle VAN THOURNOUT, Pierre GIBOT, Christian MASQUELIER
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Publication number: 20120088156Abstract: An energy storage device having high capacity per weight or volume and a positive electrode active material for the energy storage device are manufactured. A surface of a main material included in the positive electrode active material for the energy storage device is coated with two-dimensional carbon. The main material included in the positive electrode active material is coated with a highly conductive material which has a structure expanding two-dimensionally and whose thickness is ignorable, whereby the amount of carbon coating can be reduced and an energy storage device having capacity close to theoretical capacity can be obtained even when a conduction auxiliary agent is not used or the amount of the conduction auxiliary agent is extremely small. Accordingly, the amount of carbon coating in a positive electrode and the volume of the conduction auxiliary agent can be reduced; consequently, the volume of the positive electrode can be reduced.Type: ApplicationFiled: September 29, 2011Publication date: April 12, 2012Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Kuniharu NOMOTO, Takuya MIWA, Masaki YAMAKAJI, Takahiro KAWAKAMI
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Publication number: 20120082883Abstract: An electrode mixture comprising a lithium nickel manganese composite metal oxide having an average particle diameter of 1 ?m or less, an electrically conductive material and an overcharge inhibition material. The electrode mixture in which the overcharge inhibition material is an aromatic compound. The electrode mixture in which the overcharge inhibition material is one or more members selected from the group consisting of an aramid, a polyether, a polysulfone and a polyethersulfone. An electrode comprising the electrode mixture. A nonaqueous electrolyte secondary battery comprising a positive electrode, a negative electrode capable of being doped and dedoped with lithium ions, a separator and a nonaqueous electrolytic solution, wherein the positive electrode is the electrode described above.Type: ApplicationFiled: May 26, 2010Publication date: April 5, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takitaro Yamaguchi, Jun-ichi Kageura
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Publication number: 20120068123Abstract: The present invention relates to organic solar cell comprising at least one photoactive region comprising an organic donor material in contact with an organic acceptor material and forming a donor-acceptor heterojunction, wherein the photoactive region comprises at least one compound of the formulae Ia and/or Ib where M, (Ra)m and (Rb)n as described in the claims and description. Furthermore, the present invention relates to compounds of formulae Ia and Ib, wherein M, (Ra)m and n are as described in the claims and description and Rb is fluorine and to a process for preparing them.Type: ApplicationFiled: May 25, 2010Publication date: March 22, 2012Applicant: BASF SEInventors: Sudhakar Sundarraj, Ingmar Bruder, Jae Hyung Hwang, Jan Schoeneboom, Martin Koenemann, Sheeja Bahulayan, Antti Ojala, Augustine Leow Yoon Wui, Peter Erk, Ruediger Sens, Thomas Gessner
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Patent number: 8137516Abstract: The hydrogen-oxygen generating electrode plate using a carbon nano tube includes a carbon nano tube (CNT); a carbon (C); NiO; NaTaO3; and a catalyst. The method for manufacturing a hydrogen and oxygen generating electrode plate using a carbon nano tube, includes a step S1 for grinding into high-density powders; a step S2 for uniformly mixing carbon nano tube powder, carbon powder, NiO powder, NaTaO3 powder and catalyst and forming a mixture having a high distribution degree; a step S3 for inputting the mixture into a mold and pressing the same and forming a pressing forming object; and a step S4 for plasticity-forming the pressing forming object in a vacuum plasticity furnace.Type: GrantFiled: August 4, 2009Date of Patent: March 20, 2012Inventor: Boo-Sung Hwang
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Patent number: 8133969Abstract: A method for removing a carbonization catalyst from a graphene sheet, the method includes contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst.Type: GrantFiled: May 16, 2011Date of Patent: March 13, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jaeyoung Choi, Keun Soo Kim, Byung Hee Hong
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Publication number: 20120058397Abstract: A nano graphene-enhanced particulate for use as a lithium battery cathode active material, wherein the particulate is formed of a single or a plurality of graphene sheets and a plurality of fine cathode active material particles with a size smaller than 10 ?m (preferably sub-micron or nano-scaled), and the graphene sheets and the particles are mutually bonded or agglomerated into an individual discrete particulate with at least a graphene sheet embracing the cathode active material particles, and wherein the particulate has an electrical conductivity no less than 10?4 S/cm and the graphene is in an amount of from 0.01% to 30% by weight based on the total weight of graphene and the cathode active material combined.Type: ApplicationFiled: September 7, 2010Publication date: March 8, 2012Inventors: Aruna Zhamu, Jinjun Shi, Guorong Chen, Ming C. Wang, Bor Z. Jang
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Patent number: 8128844Abstract: Disclosed herein are an electrically conductive thermoplastic resin composition and a plastic article. The electrically conductive thermoplastic resin composition comprises about 80 to about 99% by weight of a thermoplastic resin, about 0.1 to about 10% by weight of carbon nanotubes and about 0.1 to about 10% by weight of an organo nanoclay.Type: GrantFiled: June 26, 2009Date of Patent: March 6, 2012Assignee: Cheil Industries Inc.Inventors: Byeong Yeol Kim, Young Sil Lee, Young Kyu Chang
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Publication number: 20120049126Abstract: A cathode active material includes a core including a material having an olivine structure, and a nitrogen atom doped into at least a portion of the core.Type: ApplicationFiled: August 30, 2011Publication date: March 1, 2012Inventors: Kyu-sung Park, Young-min Choi
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Patent number: 8124043Abstract: The present teachings are directed toward a matrix containing nanosized metal components and carbon nanotubes, with the carbon nanotubes being produced in situ by the nanosized metal components upon the contacting of the nanosized metal components with a carbon source under conditions sufficient to produce the carbon nanotubes. Also disclosed are methods of producing the matrix containing the nanosized metal components and carbon nanotubes.Type: GrantFiled: March 16, 2007Date of Patent: February 28, 2012Assignee: Honda Motor Co., Ltd.Inventors: Avetik Harutyunyan, Elena Mora
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Publication number: 20120045687Abstract: Methods of preparing negative active materials and negative active materials are provided herein. The preparation methods include: A) mixing a carbon material, an organic polymer, a Sn-containing compound—optionally with water—to obtain a mixed solution system; B) adding a complexing agent into the mixed solution system obtained in step A optionally while stirring to form an intermediate solution; C) adding a reducing agent into the intermediate solution obtained in step B to a reaction product; D) optionally filtering, washing and then drying the reaction product to obtain the negative active material.Type: ApplicationFiled: August 18, 2011Publication date: February 23, 2012Inventors: Qiang Wang, Lu Zhang, Li Ma, Yan Zhu, Zhenyue Wu