Carbon Base Patents (Class 427/113)
  • Patent number: 10147941
    Abstract: The present invention relates to a method for synthesizing graphene/sulfur composite, involving the steps of mixing graphene oxide (GO) with a hydrogen sulfide (H2S)-releasing agent in a sealed vessel, causing the H2S-releasing agent to release hydrogen sulfide, and then allowing the hydrogen sulfide to react with the graphene oxide at an elevated temperature and pressure to form said graphene/sulfur composite.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: December 4, 2018
    Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Linfeng Fei, Yu Wang
  • Patent number: 10090117
    Abstract: The method of making a porous carbon electrode is a chemical activation-based method of making a porous nanocarbon electrode for supercapacitors and the like. Recycled jackfruit (Artocarpus heterophyllus) peel waste is used as a precursor carbon source for producing the porous nanocarbon. A volume of jackfruit (Artocarpus heterophyllus) peel is collected, dried and then heated under vacuum to produce precursor carbon. The precursor carbon is mixed with phosphoric acid (H3PO4) to form a mixture, which is then stirred, dried and heated to yield porous nanocarbon. The porous nanocarbon is mixed with a binder, such as poly(vinylidenedifluoride), acetylene black, and an organic solvent, such as n-methyl pyrrolidinone, to form a paste. This paste is then coated on a strip of nickel foil to form the porous carbon electrode.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: October 2, 2018
    Assignee: KING SAUD UNIVERSITY
    Inventors: Jothi Ramalingam, Siva Chidambaram, Judith Vijaya, Hamad Al-Lohedan
  • Patent number: 10082703
    Abstract: Provided are a liquid crystal display panel, and a composite substrate and a method for fabricating the composite substrate. The composite substrate includes: a substrate, a carbon nanotube layer and a photoalignment matrix material. The carbon nanotube layer is adhered to a surface of the substrate with the photoalignment matrix material; the carbon nanotube layer includes multiple carbon nanotubes extending in a same direction. Multiple grooves arranged in parallel may be formed between carbon nanotubes since the extending direction of the carbon nanotube is the same, and the groove may be used for an initial alignment of liquid crystal molecules, hence the carbon nanotube layer may serve as an alignment layer. In addition, the carbon nanotube has a polarizing feature to serve as a polarizing layer. Therefore, the composite substrate may serve as both the alignment layer and the polarizing layer.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: September 25, 2018
    Assignees: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Sifan Wei
  • Patent number: 9732005
    Abstract: A method for forming in situ a boron nitride reaction product locally on a reinforcement phase of a ceramic matrix composite material includes the steps of providing a ceramic matrix composite material having a fiber reinforcement material; and forming in situ a layer of boron nitride on the fiber reinforcement material.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: August 15, 2017
    Assignee: United Technologies Corporation
    Inventors: Neal Magdefrau, Paul Sheedy
  • Patent number: 9409198
    Abstract: The invention is a method, an apparatus, and a coated product-manufacturing method each capable of applying a coating solution to a flexible backing sheet using a die coater while preventing contaminants from forming defects. A virtual line L is drawn to pass through the discharge port 74 of the die coater 7 and to extend perpendicular to the backing sheet 1, the distance D1 between a starting line P1 and a boundary line P2 is 50 mm or less, and the distance between the starting line P1 and a line on the roller P3 is 5 ?m or more.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: August 9, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Toshitsugu Hosokawa, Keiichi Okamoto, Satoru Yamamoto
  • Patent number: 9243641
    Abstract: A pump for pumping molten metal includes a pump shaft having an upper end and a lower end. A motor is connected to the upper end of the shaft. An impeller is fastened to the lower end of the shaft. Support structure supports the motor above the molten metal. A base is disposed below the support structure including an impeller chamber in which the impeller is rotated by activation of the motor. The base includes at least one inlet opening leading to the impeller chamber and at least one outlet passageway leading from the impeller chamber. At least one support post extends between the support structure and the base enabling the base to be submerged in the molten metal beneath the support structure. A device enables the post to resist deterioration while the post is disposed in the molten metal.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: January 26, 2016
    Inventor: Bruno H. Thut
  • Publication number: 20150147573
    Abstract: The present invention is directed to nanofiber yarns, ribbons, and sheets; to methods of making said yarns, ribbons, and sheets; and to applications of said yarns, ribbons, and sheets. In some embodiments, the nanotube yarns, ribbons, and sheets comprise carbon nanotubes. Particularly, such carbon nanotube yarns of the present invention provide unique properties and property combinations such as extreme toughness, resistance to failure at knots, high electrical and thermal conductivities, high absorption of energy that occurs reversibly, up to 13% strain-to-failure compared with the few percent strain-to-failure of other fibers with similar toughness, very high resistance to creep, retention of strength even when heated in air at 450° C. for one hour, and very high radiation and UV resistance, even when irradiated in air. Furthermore these nanotube yarns can be spun as one micron diameter yarns and plied at will to make two-fold, four-fold, and higher fold yarns.
    Type: Application
    Filed: December 23, 2014
    Publication date: May 28, 2015
    Applicant: Board of Regents, The University of Texas System
    Inventors: Mei Zhang, Shaoli Fang, Ray H. Baughman, Anvar A. Zakhidov, Kenneth Ross Atkinson, Ali E. Aliev, Sergey Li, Chris Williams
  • Patent number: 9034421
    Abstract: The present invention relates to electrochemical cells, electrodes, and related methods. In some embodiments, a removable filler material may be employed during fabrication of an electrochemical cell, or component thereof, to produce electrochemical devices having improved cell performance and rate capability. Electrochemical cells may exhibit enhanced utilization of electroactive species and/or increased accessibility of electroactive species within the electrochemical cell during operation. In some cases, the invention may provide electrodes which advantageously possess both high loading of an electroactive species (e.g., greater than 1.5 mg/cm2), while also maintaining the stability and good mechanical properties of the electrode.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: May 19, 2015
    Assignee: Sion Power Corporation
    Inventors: Yuriy V. Mikhaylik, William F. Wilkening, Christopher T. S. Campbell, Savannah V. Burnside
  • Publication number: 20150129280
    Abstract: A structure including a graphene electrode and a molecular monolayer, a flexible electronic device, and a method of production thereof are provided. The structure includes a first graphene electrode and a molecular monolayer disposed on the first graphene electrode and chemically or physically bound to the first graphene electrode.
    Type: Application
    Filed: May 27, 2014
    Publication date: May 14, 2015
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Hyoyoung LEE, Sohyeon SEO
  • Publication number: 20150132565
    Abstract: A method of forming a composite material for use in multi-modal transport includes providing three-dimensional graphene having hollow channels, enabling a polymer to wick into the hollow channels of the three-dimensional graphene, curing the polymer to form a cured three-dimensional graphene, adding an active material to the cured three-dimensional graphene to form a composite material, and removing the polymer from within the hollow channels. A composite material formed according to the method is also provided.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 14, 2015
    Inventors: Ian Salmon McKay, Sungwoo Yang, Evelyn N. Wang, Hyunho Kim
  • Publication number: 20150132655
    Abstract: It is an object of an exemplary embodiment of the present invention to provide a negative electrode active material having excellent rate characteristics and cycle characteristics. One embodiment according to the present invention is a negative electrode active material comprising a carbon-containing composite, wherein, in the carbon-containing composite, an active material capable of intercalating and deintercalating lithium, conductive nanofibers and conductive carbon particles are coated with a carbon material and are integrated.
    Type: Application
    Filed: December 20, 2012
    Publication date: May 14, 2015
    Applicant: NEC CORPORATION
    Inventors: Ryota Yuge, Noriyuki Tamura
  • Patent number: 9029016
    Abstract: Provided are a negative active material, a method of preparing the same, and a lithium battery including the negative active material. The negative active material includes a carbonaceous core that has a sulfur content of about 10 ppm to 900 ppm; and an amorphous carbon layer continuously formed on a surface of the carbonaceous core, wherein the carbonaceous core has a crystalloid plate structure, and a crystallite size measured from a full width at half maximum of the peak with respect to the surface (002) of about 10 nm to about 45 nm in an X-ray diffraction spectrum of the carbonaceous core. The lithium battery including a negative electrode including the negative active material has improved capacity characteristics and ring lifetime characteristics.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: May 12, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: So-Ra Lee, Chang-Su Shin, Ui-Song Do, Beom-Kwon Kim, Jae-Myung Kim
  • Publication number: 20150102268
    Abstract: Disclosed is a carbon paper for a fuel cell gas diffusion layer. The carbon paper can be produced by baking and calcination at a low temperature. This low-temperature heat treatment can greatly reduce the production cost of the carbon paper. In addition, the carbon paper has superior gas permeability and electrical conductivity despite the greatly reduced production cost. The application of the carbon paper to a gas diffusion layer of a fuel cell contributes to reduced fabrication cost and improved quality of the fuel cell. Also disclosed is a method for producing the carbon paper.
    Type: Application
    Filed: January 10, 2014
    Publication date: April 16, 2015
    Applicant: Korea Institute Of Energy Research
    Inventors: Hyunuk KIM, Yoonjong YOO, Sungjin LEE, Young Ju LEE, Kwangsub SONG
  • Patent number: 8999577
    Abstract: Provided are a negative active material, a method of preparing the same, and a lithium battery including the negative active material. The negative active material includes a carbonaceous core that has a sulfur content of about 10 ppm to 900 ppm; and an amorphous carbon layer continuously formed on a surface of the carbonaceous core, wherein the carbonaceous core has a crystalloid plate structure, and a crystallite size measured from a full width at half maximum of the peak with respect to the surface (002) of about 10 nm to about 45 nm in an X-ray diffraction spectrum of the carbonaceous core. The lithium battery including a negative electrode including the negative active material has improved capacity characteristics and ring lifetime characteristics.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: April 7, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: So-Ra Lee, Chang-Su Shin, Ui-Song Do, Beom-Kwon Kim, Jae-Myung Kim
  • Patent number: 8993170
    Abstract: A composite carbon material of negative electrode in lithium ion, which is made of composite graphite, includes a spherical graphite and a cover layer, wherein the cover layer is pyrolytic carbon of organic substance. Inserted transition metal elements are contained between layers of graphite crystal. Preparation of the negative electrode includes the steps of: crushing graphite, shaping to form a spherical shape, purifying treatment, washing, dewatering and drying, dipped in salt solution doped by transition metal in multivalence, mixed with organic matter, covering treatment, and carbonizing treatment or graphitization treatment. The negative electrode provides advantages of reversible specific capacity larger than 350 mAh/g, coulomb efficiency higher than 94% at first cycle, conservation rate for capacity larger than 8-% in 500 times of circulation.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: March 31, 2015
    Assignee: BTR New Energy Materials Inc.
    Inventors: Min Yue, Wanhong Zhang
  • Publication number: 20150086871
    Abstract: Methods for producing nanostructures from copper-based catalysts on porous substrates, particularly silicon nanowires on carbon-based substrates for use as battery active materials, are provided. Related compositions are also described. In addition, novel methods for production of copper-based catalyst particles are provided. Methods for producing nanostructures from catalyst particles that comprise a gold shell and a core that does not include gold are also provided.
    Type: Application
    Filed: July 24, 2012
    Publication date: March 26, 2015
    Applicant: ONED MATERIAL LLC
    Inventors: Wanqing Cao, Virginia Robbins
  • Publication number: 20150072269
    Abstract: Disclosed is an electrode additive for a fuel cell and a synthesis method thereof. A synthesis method according to an exemplary embodiment of the present invention includes: producing a metal salt solution by dissolving metal salt in a solvent such as ethylene glycol; producing a carbon-metal salt suspension by distributing carbon in the metal salt solution; heating and cooling the carbon-metal salt suspension and then filtering out the carbon-supported metal powder; cleansing and drying the carbon-supported metal powder; and obtaining carbon-supported metal oxide powder by performing heat treatment on the carbon-supported metal powder at about 300-1000° C. by exposure to water vapor.
    Type: Application
    Filed: December 5, 2013
    Publication date: March 12, 2015
    Applicants: Kia Motors Corporation, Hyundai Motor Company
    Inventor: Hoon Hui Lee
  • Publication number: 20150071844
    Abstract: Ultra-large graphene oxide (UL-GO) sheets are formed using a Langmuir-Blodgett (LB) thin film process. Sulfuric acid and nitric acid are applied to interlayers of natural graphite flake to form graphite intercalation compound (GIC) powders. The GIC powders are expanded at a high temperature, and intercalating agents are used to further oxidize the expanded GIC powders by to exfoliating the EG into monolayer graphene oxide (GO) sheets. The GO is sequentially centrifuged and UL-GO sheets are collected. An LB thin film is prepared from the collected sheets and the thin films are reduced and chemically doped.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 12, 2015
    Inventors: Jang Kyo KIM, Jingjing JIA, Xiuyi LIN, Chak Ming KAN, Sheung Man AU
  • Publication number: 20150068917
    Abstract: The present invention relates to the electrolytic splitting of water using a carbon-supported manganese oxide (MnOx) composite. Specifically, the present electrolytic splitting of water is carried under neutral electrolyte conditions with a high electrolytic activity, while using an oxygen evolution reaction (OER)-electrode comprising the present carbon-supported MnOx composite. Next, the present invention relates to a process for producing such a carbon-supported MnOx composite as well as to a composite obtainable by the present process for producing the same and to an OER-electrode comprising the carbon-supported MnOx composite obtainable by the present process.
    Type: Application
    Filed: February 28, 2013
    Publication date: March 12, 2015
    Applicant: Fritz Haber Institut der Max Planck Gesellschaft
    Inventors: Robert Schlögl, Katharina Mette, Malte Behrens, Jean-Philippe Tessonnier, Arno Bergmann, Peter Strasser
  • Publication number: 20150060267
    Abstract: A bulk boron doped diamond electrode comprising a plurality of grooves disposed in a surface of the bulk boron doped diamond electrode. The bulk boron doped diamond electrode is formed by growing a bulk boron doped diamond electrode using a chemical vapour deposition technique and forming a plurality of grooves in a surface of the bulk boron doped diamond electrode. According to one arrangement, the plurality of grooves are formed by forming a pattern of carbon solvent metal over a surface of the bulk boron doped diamond electrode and heating whereby the carbon solvent metal dissolves underlying diamond to form grooves in the surface of the bulk boron doped electrode. The invention also relates to an electrochemical cell comprising one or more grooved bulk boron doped diamond electrodes. The or each bulk boron doped diamond electrode is oriented within the electrochemical device such that the grooves are aligned in a direction substantially parallel to a direction of electrolyte flow.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 5, 2015
    Applicant: ELEMENT SIX LIMITED
    Inventor: Helen Wilman
  • Patent number: 8968825
    Abstract: The disposable palladium nanoparticle-modified graphite pencil electrode (PdNP-GPE) is a graphite pencil electrode having palladium nanoparticles disposed on the surface of the electrode. The electrode is prepared by adding ascorbic acid to an aqueous solution of ammonium tetrachloropalladate(II) [(NH4)2PdCl4] at room temperature to form the palladium nanoparticles (PdNPs), immersing a GPE in the aqueous solution of PdNPs, and heating the solution to about 75° C. to deposit the PdNPs on the GPE. The palladium nanoparticle modified graphite pencil electrode may be used in an electrochemical cell for quantitative analysis of hydrogen peroxide content in an unknown solution.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: March 3, 2015
    Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventors: Abdel-Nasser Metwally Aly Kawde, MD Abdul Aziz
  • Publication number: 20150053554
    Abstract: The disposable palladium nanoparticle-modified graphite pencil electrode (PdNP-GPE) is a graphite pencil electrode having palladium nanoparticles disposed on the surface of the electrode. The electrode is prepared by adding ascorbic acid to an aqueous solution of ammonium tetrachloropalladate(II) [(NH4)2PdCl4] at room temperature to form the palladium nanoparticles (PdNPs), immersing a GPE in the aqueous solution of PdNPs, and heating the solution to about 75° C. to deposit the PdNPs on the GPE. The palladium nanoparticle modified graphite pencil electrode may be used in an electrochemical cell for quantitative analysis of hydrogen peroxide content in an unknown solution.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicants: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Abdel-Nasser Metwally Aly KAWDE, MD ABDUL AZIZ
  • Publication number: 20150053555
    Abstract: The pencil graphite electrode modified with gold nanoparticles can be used for the detection of hydrazine. The pencil graphite electrode has an outer surface coated with gold nanoparticles. Prior to modification of the pencil graphite electrode, equal volumes of an aqueous solution of ascorbic acid and an aqueous solution of gold(III) chloride are mixed to form a mixture containing gold nanoparticles. A pencil graphite electrode is then immersed in the mixture and is heated at a temperature of about 75° C. to form the pencil graphite electrode coated with gold nanoparticles. The pencil graphite electrode coated with gold nanoparticles is then removed from the mixture, washed and dried, and may then be used for the to electrochemical detection of hydrazine.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: ABDEL-NASSER METWALLY ALY KAWDE, MD ABDUL AZIZ
  • Publication number: 20150050450
    Abstract: The invention relates to a material (I) adapted for the production of composite parts by a process in which a thermoplastic or thermosetting matrix is diffused within said material, comprising at least one sheet (1) of unidirectional carbon fibres (2) associated on at least one of its faces with at least one conductive component (5) associated or integrated with a permeable layer (3a, 3b, 10) in a thermoplastic material or in a mixture of thermoplastic or thermosetting materials, said permeable layer being in the form of a fabric, a powder, a porous film, a knit, or, preferably, a non-woven (3a, 3b, 10), a process for fabricating composite parts using such a material and the composite parts that can be obtained by such a process.
    Type: Application
    Filed: March 28, 2013
    Publication date: February 19, 2015
    Inventors: Jean-Marc Beraud, Andrea Viard
  • Publication number: 20150034857
    Abstract: Disclosed is a method of manufacturing ceramic coated graphite having electric resistance in a range from 108 to 1016 ?/sq via a sol-gel method, the ceramic coated graphite comprising graphite; and ceramic chemically bonded to a lateral defect area of the graphite, wherein the graphite is oval graphite having an aspect ratio selected from the group consisting of 10:1 to 200:1, and the ceramic is at least one type selected from the group consisting of magnesium oxide, aluminum oxide, zinc oxide, zirconium oxide, and silica.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 5, 2015
    Inventors: Sang Eun SHIM, Seong Cheol CHOI, Min Jae KIM
  • Publication number: 20150024304
    Abstract: A catalyst layer constituting body which prevents runoff of a proton conductive polymer from a catalyst layer even when moisture is generated by an operation of a fuel cell. In a catalyst layer constituting body of a fuel cell where catalyst particles are carried on carbon, the catalyst particles are carried by way of a carrying layer constituted of two upper and lower layers, the upper layer of the carrying layer is formed by using a polymer having proton conductivity, the upper layer forming a proton conduction layer which conducts protons generated in the catalyst particles or protons to be supplied to the catalyst particles therethrough, and the lower layer of the carrying layer is formed using a polymer having affinity with both the proton conduction layer and the carbon, the lower layer forming an adhesive layer which bonds the proton conduction layer and the carbon to each other.
    Type: Application
    Filed: January 17, 2013
    Publication date: January 22, 2015
    Inventors: Naotoshi Nakashima, Tsuyohiko Fujigaya
  • Publication number: 20150017524
    Abstract: Disclosed is an electrode active material for a rechargeable lithium battery, including: a core part including a carbon-based active material; and a coating layer disposed on a surface of the core portion to include a ceramic, wherein the surface of the core part is subjected to coating with a low crystalline carbon material, a method for preparing the same, an electrode including the same, and a rechargeable lithium battery including the electrode.
    Type: Application
    Filed: October 29, 2013
    Publication date: January 15, 2015
    Applicant: POSCO CHEMTECH CO., LTD.
    Inventors: Mi Ryeong Lee, Heon Young Lee, Kyoung Muk Lee, Hyun Ki Choi
  • Publication number: 20150010825
    Abstract: A method for making graphene-based material is disclosed. A graphene oxide dispersion includes graphene oxide dispersed in solvent. A hydrogen sulfide gas is introduced to the graphene oxide dispersion at a reacting temperature to achieve a graphene dispersion. The hydrogen sulfide reduces graphene oxide into graphene, and elemental sulfur produced from the hydrogen sulfide is deposited on surfaces of the graphene. The solvent is removed to achieve a graphene composite material. Further, a graphene composite material and a lithium sulfur battery using the graphene composite material are also disclosed.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 8, 2015
    Inventors: QUAN-HONG YANG, CHEN ZHANG, WEI LV, XIAO-YU ZHENG, WEI WEI, YING TAO, BAO-HUA LI, FEI-YU KANG
  • Publication number: 20150010696
    Abstract: The present invention provides a method of finely depositing lithium metal powder or thin lithium foil onto a substrate while avoiding the use of a solvent. The method includes depositing lithium metal powder or thin lithium foil onto a carrier, contacting the carrier with a substrate having a higher affinity for the lithium metal powder as compared to the affinity of the carrier for the lithium metal powder, subjecting the substrate while in contact with the carrier to conditions sufficient to transfer the lithium metal powder or lithium foil deposited on the carrier to the substrate, and separating the carrier and substrate so as to maintain the lithium metal powder or lithium metal foil, deposited on the substrate.
    Type: Application
    Filed: September 25, 2014
    Publication date: January 8, 2015
    Inventors: Marina Yakovleva, Yuan Gao, Yangxing Li, Kenneth Brian Fitch
  • Publication number: 20150004516
    Abstract: A lamellar structure graphite foil is used as a material for a separator for a fuel cell, and a hydrophobic layer is formed by impregnation on flow-field channels of the graphite foil. Such a separator is manufactured by forming the flow field channel by etching the graphite foil formed with the mask pattern thereon and forming a hydrophobic layer by impregnation. According to such a separator, performance of a fuel cell stack is enhanced and the manufacturing process of a separator is simplified.
    Type: Application
    Filed: September 16, 2014
    Publication date: January 1, 2015
    Inventors: Ho-Suk Kim, Byung-Sun Hong, Mee-Nam Shinn
  • Publication number: 20150004529
    Abstract: The present invention relates to the use, as a precursor for the chemical vapour deposition of PtSi at the surface of a support, of at least one organometallic complex of Pt comprising at least:—a ligand having a cyclic structure that comprises at least two non-adjacent C?C double bonds, or two ligands having a cyclic structure that each comprise a C?C double bond; and—a ligand chosen from *O—Si(R)3 and *N—(Si(R)3)2, with: the R units being chosen, independently of one another, from (C1-C4)alkoxy groups; the R? units being chosen, independently of one another, from (C1-C4)alkyl and (C3-C4)cycloalkyl groups; and * representing the coordination of the ligand to the platinum.
    Type: Application
    Filed: January 16, 2013
    Publication date: January 1, 2015
    Inventors: Sebastien Donet, Christophe Coperet, Nicolas Guillet, Pierre Laurent, Chloe Thieuleux
  • Publication number: 20140356707
    Abstract: 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.
    Type: Application
    Filed: May 13, 2014
    Publication date: December 4, 2014
    Applicant: POSCO CHEMTECH CO., LTD.
    Inventors: Se Mann Kwon, Ji Kwon Jung, Yong Tae Park
  • Publication number: 20140356722
    Abstract: The present invention relates to a conductive material for a secondary battery, including a pitch coated graphene sheet, an anode for a secondary battery including the same, and a lithium secondary battery including the electrode.
    Type: Application
    Filed: July 1, 2014
    Publication date: December 4, 2014
    Inventors: Sun Young Shin, Sang Wook Woo, Eun Kyung Kim, Je Young Kim, Hyun Wook Kim, Su Min Lee
  • Publication number: 20140349186
    Abstract: A method of modifying the surface of carbon materials such as vapor grown carbon nanofibers is provided in which silicon is deposited on vapor grown carbon nanofibers using a chemical vapor deposition process. The resulting silicon-carbon alloy may be used as an anode in a rechargeable lithium ion battery.
    Type: Application
    Filed: August 6, 2014
    Publication date: November 27, 2014
    Inventors: David J. Burton, Max L. Lake, Maryam Nazri
  • Publication number: 20140342234
    Abstract: The present invention relates to a sulfur-carbon composite made from microporous-carbon-coated carbon nanotube (CNT@MPC) composites, in particular a sulfur-carbon composite, which comprises a carbon-carbon composite substrate (CNT@MPC) and sulfur loaded into said carbon-carbon composite substrate (CNT@MPC); as well as a method for preparing said sulfur-carbon composite, an electrode material and a lithium-sulfur battery comprising said sulfur-carbon composite.
    Type: Application
    Filed: November 29, 2011
    Publication date: November 20, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventors: Yuguo Guo, Sen Xin, Nahong Zhao, Longjie Zhou
  • Publication number: 20140342233
    Abstract: The present invention relates to a sulfur-carbon composite, comprising a pyrolysis microporous carbon sphere (PMCS) substrate and sulfur loaded into said pyrolysis microporous carbon sphere (PMCS) substrate; as well as a method for preparing said sulfur-carbon composite, an electrode material and a lithium-sulfur battery comprising said sulfur-carbon composite.
    Type: Application
    Filed: November 29, 2011
    Publication date: November 20, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventors: Yuguo Guo, Sen Xin, Nahong Zhao, Longjie Zhou
  • Publication number: 20140332732
    Abstract: Conductive particle 10 has conductive carbon black particle (CB) 11 and cover layer 12. The amount of an insulating resin in conductive particle 10 is from 10 to 50% by mass. The number-average primary particle diameter of CB11 is from 20 to 60 nm; DBP absorption amount is from 100 to 200 mL/100 g. Cover layer 12 is formed by a phase-inversion emulsification method that contains an insulating resin having an amino group and CB11 in an oil phase. Conductive particle 10 is used suitably for a conductive agent of an intermediate transfer belt of an image forming apparatus.
    Type: Application
    Filed: May 5, 2014
    Publication date: November 13, 2014
    Applicant: Konica Minolta, Inc.
    Inventors: Wanli ZHANG, Kouichi ETOU, Kazuyoshi OTA, Junji KANDA
  • Publication number: 20140330100
    Abstract: Carbon nanostructures may be protected and functionalized using a layer-by-layer method whereby functional groups on the carbon nanostructure surface may be further derivatized to incorporate additional functional moieties. Exemplary moieties include redox mediator molecules, crown ethers, catalysts, boric acids, carbohydrates, oligonucleotides, DNA or RNA aptamers, peptide aptamers, proteins such as enzymes and antibodies, quantum dots and nanoparticles, cells, cell organelles, or other cellular components. The density of functional groups or functional moieties on carbon nanostructure surfaces may also be controlled as well as the degree of surface hydrophilicity of the nanostructure.
    Type: Application
    Filed: September 10, 2012
    Publication date: November 6, 2014
    Applicant: NANOSELECT, INC.
    Inventors: Chunhong Li, David J. Ruggieri
  • Publication number: 20140314949
    Abstract: A method includes the steps of receiving a conductor element formed from a plurality of carbon nanotubes; and exposing the conductor element to a controlled amount of a dopant so as to increase the conductance of the conductor element to a desired value, wherein the dopant is one of bromine, iodine, chloroauric acid, hydrochloric acid, hydroiodic acid, nitric acid, and potassium tetrabromoaurate. A method includes the steps of receiving a conductor element formed from a plurality of carbon nanotubes; and exposing the conductor element to a controlled amount of a dopant solution comprising one of chloroauric acid, hydrochloric acid, nitric acid, and potassium tetrabromoaurate, so as to increase the conductance of the conductor element to a desired value.
    Type: Application
    Filed: July 3, 2014
    Publication date: October 23, 2014
    Inventor: John A. Starkovich
  • Publication number: 20140308437
    Abstract: Processes for preparation of an epitaxial graphene surface to make it suitable for deposition of high-? oxide-based dielectric compounds such as Al2O3, HfO2, TaO5, or TiO2 are provided. A first process combines ex situ wet chemistry conditioning of an epitaxially grown graphene sample with an in situ pulsing sequence in the ALD reactor. A second process combines ex situ dry chemistry conditioning of the epitaxially grown graphene sample with the in situ pulsing sequence.
    Type: Application
    Filed: June 26, 2014
    Publication date: October 16, 2014
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Nelson Garces, Virginia D. Wheeler, David Kurt Gaskill, Charles R. Eddy, Jr., Glenn G. Jernigan
  • Publication number: 20140302595
    Abstract: A nanosensor and methods to manufacture are disclosed. For example, a detection system for detecting the presence of a target substance can include a nanosensor that includes a sensing layer, and a plurality of sockets embedded within the body of the sensing layer, each socket having a physical profile matching a shape of the target substance such that, when target substances occupy the sockets, at least one measurable physical characteristic of the sensing layer changes.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 9, 2014
    Applicant: Lockheed Martin Corporation
    Inventors: Rebecca Schwartz, John Arthur Wood
  • Publication number: 20140302394
    Abstract: A lithium ion battery graphite negative electrode material and preparation method thereof. The lithium ion battery graphite negative electrode material is a composite material including graphite substrates, surface coating layers coated on the graphite substrates and carbon nanotubes and/or carbon nanofibers grown in situ on the surface of the surface coating layers. The preparation method thereof includes, in solid phase or liquid phase circumstance, the coated carbon material precursor forms the surface coating layer of amorphous carbon by carbonization, and then carbon nanotubes and/or carbon nanofibers having high conductive performance are formed on the surface of the surface coating layers by vapor deposition. This coating mode of the combination of solid phase with gas phase or of liquid phase and gas phase makes the amorphous carbon formed on the surface of the graphite substrates more uniform and dense.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 9, 2014
    Applicant: SHENZHEN BTR NEW ENERGY MATERIALS INC
    Inventors: Min Yue, Yan Liang, Huiqing Yan, Minghua Deng, Youyuan Huang
  • Publication number: 20140295066
    Abstract: A one-pot process for the electroless-plating of silver onto graphite powder is disclosed. No powder pretreatment steps for the graphite, which typically require filtration, washing or rinsing, are required. The inventive process comprises mixing together three reactant compositions in water: an aqueous graphite activation composition comprising graphite powder and a functional silane, a silver-plating composition comprising a silver salt and a silver complexing agent, and a reducing agent composition.
    Type: Application
    Filed: June 12, 2014
    Publication date: October 2, 2014
    Inventors: Jie Cao, Wenhua Huang, Allison Yue Xiao
  • Publication number: 20140287315
    Abstract: The invention relates to a process for producing an Si/C composite, which includes providing an active material containing silicon, providing lignin, bringing the active material into contact with a C precursor containing lignin and carbonizing the active material by converting lignin into inorganic carbon at a temperature of at least 400° C. in an inert gas atmosphere. The invention further provides an Si/C composite, the use thereof as anode material in lithium ion batteries, an anode material for lithium ion batteries which contains such an Si/C composite, a process for producing an anode for a lithium ion battery, in which such an anode material is used, and also a lithium ion battery which includes an anode having an anode material according to the invention.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 25, 2014
    Applicant: Wacker Chemie AG
    Inventors: Dennis TROEGEL, Manfred AMANN, Stefan HAUFE, Jelena PANTELIC
  • Publication number: 20140287337
    Abstract: Disclosed is a carbon fiber web including polymer nanofibers. Specifically, the carbon fiber web includes: a dispersed structure of carbon fibers; and polymer nanofibers distributed among and bonding the constituent carbon fibers of the dispersed structure. The carbon fiber web exhibits excellent characteristics in terms of flexural strength, gas permeability and electrical properties while possessing a tensile strength sufficient to undergo continuous processes for mass production. Also disclosed are a gas diffusion medium using the carbon fiber web, a gas diffusion layer including the gas diffusion medium, a membrane electrode assembly including the gas diffusion layer, and a fuel cell including the membrane electrode assembly. The use of the carbon fiber web ensures high performance of the membrane electrode assembly and the fuel cell.
    Type: Application
    Filed: June 19, 2013
    Publication date: September 25, 2014
    Inventors: Yoonjong Yoo, Hyunuk Kim, Kwangsub Song, Hongsoo Kim, Young Ju Lee, Sungjin Lee
  • Publication number: 20140287317
    Abstract: Silicon/carbon composite material, consisting of at least one capsule comprising a silicon shell within which there are carbon nano-objects partially or totally covered with silicon, and silicon nano-objects. The capsule may further comprise an amorphous carbon shell inside the silicon shell and adjacent to the latter. A method for preparing said composite material is disclosed.
    Type: Application
    Filed: October 25, 2012
    Publication date: September 25, 2014
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Pascal Tiquet, Mélanie Alias
  • Patent number: 8834829
    Abstract: The invention provides a method of making a battery anode in which a quantity of graphite powder is provided. The temperature of the graphite powder is raised from a starting temperature to a first temperature between 1000 and 2000° C. during a first heating period. The graphite powder is then cooled to a final temperature during a cool down period. The graphite powder is contacted with a forming gas during at least one of the first heating period and the cool down period. The forming gas includes H2 and an inert gas.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: September 16, 2014
    Assignee: UT-Battelle, LLC
    Inventors: Cristian Ion Contescu, Nidia C. Gallego, Jane Y. Howe, Harry M. Meyer, III, Edward Andrew Payzant, David L. Wood, III, Sang Young Yoon, Matthew R. Denlinger
  • Publication number: 20140255819
    Abstract: A non-woven gas diffusion substrate including: (i) a non-woven carbon fibre web; (ii) a carbon particulate material; and 10 (iii) a hydrophobic binder characterised in that the non-woven gas diffusion substrate further includes a conductive material having a x:y aspect ratio from 0.01 to 100, a x:z aspect ratio of at least 500 and a y:z aspect ratio of at least 500.
    Type: Application
    Filed: October 17, 2012
    Publication date: September 11, 2014
    Inventors: Rosemary Fisher, Ian Roy Harkness, Jonathan David Brereton Sharman, Michael Jeschke
  • Patent number: 8828481
    Abstract: A method of modifying the surface of carbon materials such as vapor grown carbon nanofibers is provided in which silicon is deposited on vapor grown carbon nanofibers using a chemical vapor deposition process. The resulting silicon-carbon alloy may be used as an anode in a rechargeable lithium ion battery.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: September 9, 2014
    Assignee: Applied Sciences, Inc.
    Inventors: David J. Burton, Max L. Lake, Maryam Nazri
  • Patent number: 8822078
    Abstract: The present invention relates to freestanding carbon nanotube paper comprising purified carbon nanotubes, where the purified carbon nanotubes form the freestanding carbon nanotube paper and carbon microparticles embedded in and/or present on a surface of the carbon nanotube paper. The invention also relates to a lithium ion battery, capacitor, supercapacitor, battery/capacitor, and fuel cell containing the freestanding carbon nanotube paper as an electrode. Also disclosed is a method of making a freestanding carbon nanotube paper. This method involves providing purified carbon nanotubes, contacting the purified carbon nanotubes with an organic solvent under conditions effective to form a dispersion comprising the purified carbon nanotubes. The dispersion is formed into a carbon nanotube paper and carbon microparticles are incorporated with the purified carbon nanotubes.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: September 2, 2014
    Assignee: Rochester Institute of Technology
    Inventors: Brian J. Landi, Ryne P. Raffaelle, Cory D. Cress