With Metal Compound Patents (Class 252/506)
  • Publication number: 20140225041
    Abstract: Hybrid materials and nanocomposite materials, methods of making and using such materials. The nanoparticles of the nanocomposite are formed in situ during pyrolysis of a hybrid material comprising metal precursor compounds. The nanoparticles are uniformly distributed in the carbon matrix of the nanocomposite. The nanocomposite materials can be used in devices such as, for example, electrodes and on-chip inductors.
    Type: Application
    Filed: December 6, 2013
    Publication date: August 14, 2014
    Inventors: Lynden A. Archer, Zichao Yang, Shyamal Kumar Das
  • Publication number: 20140225043
    Abstract: A production apparatus for an electric storage material includes a dissolution device that dissolves a thickener in a solvent by applying vibration to the solvent, and a kneading device that kneads a solution of the thickener having an adjusted viscosity and an active substance. The thickener is dissolved in the solvent, and a powder of the active substance and the like are dispersed and kneaded in the solution of the thickener having the adjusted viscosity. Thus, kneading can be performed in a short time, and damage to the active substance can be suppressed.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 14, 2014
    Applicant: JTEKT Corporation
    Inventors: Takumi MIO, Koji Nishi, Junya Fujita, Yoshifumi Fukaya, Takafumi Fujii, Kazuya Suzuki
  • Publication number: 20140220444
    Abstract: Provided are a method of preparing iron oxide nanoparticles, iron oxide nanoparticles prepared thereby, and an anode material including the iron oxide nanoparticles.
    Type: Application
    Filed: April 9, 2014
    Publication date: August 7, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Myung Ki Lee, Sung Bin Park, Sung Joong Kang, Wang Mo Jung
  • Publication number: 20140220456
    Abstract: The present application is generally directed to energy storage materials such as activated carbon comprising enhanced particle packing properties and devices containing the same. The energy storage materials find utility in any number of devices, for example, in electric double layer capacitance devices and batteries. Methods for making the energy storage materials are also disclosed.
    Type: Application
    Filed: January 8, 2014
    Publication date: August 7, 2014
    Applicant: EnerG2 Technologies, Inc.
    Inventors: Henry R. Costantino, Chad Goodwin, William D. Scott, Aaron M. Feaver
  • Patent number: 8795853
    Abstract: A material for an organic EL element showing high light emission efficiency and high color purity of the emission light, an organic EL element, a lighting device and a displaying device each using the material.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: August 5, 2014
    Assignee: Konica Minolta, Inc.
    Inventors: Tomohiro Oshiyama, Masato Nishizeki, Noboru Sekine
  • Publication number: 20140212753
    Abstract: Disclosed are embodiments of active materials for organometallic and organometallic-inorganic hybrid electrodes and particularly active materials for organometallic and organometallic-inorganic hybrid cathodes for lithium-ion batteries. In certain embodiments the organometallic material comprises a ferrocene polymer.
    Type: Application
    Filed: January 29, 2014
    Publication date: July 31, 2014
    Inventors: Qian Huang, John P. Lemmon, Daiwon Choi, Lelia Cosimbescu
  • Patent number: 8790551
    Abstract: An electrolyte composition containing an ionic liquid and conductive particles, an electrolyte composition containing an ionic liquid and oxide semiconductor particles and optionally containing conductive particles, and an electrolyte composition containing an ionic liquid and insulating particles are provided. Furthermore, a photoelectric conversion element comprising: a working electrode, the working electrode comprising an electrode substrate and an oxide semiconductor porous film formed on the electrode substrate and sensitized with a dye; a counter electrode disposed opposing the working electrode; and an electrolyte layer made of these electrolyte compositions is provided.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: July 29, 2014
    Assignee: Fujikura Ltd.
    Inventors: Hiroki Usui, Nobuo Tanabe, Hiroshi Matsui, Tetsuya Ezure, Shozo Yanagida
  • Publication number: 20140203218
    Abstract: A method is employed for producing a positive electrode active material for a lithium secondary battery that comprises mixing lithium phosphate having a particle diameter D90 of 100 ?m or less, an M element-containing compound having a particle diameter D90 of 100 ?m or less (where, M is one type or two or more types of elements selected from the group consisting of Mg, Ca, Fe, Mn, Ni, Co, Zn, Ge, Cu, Cr, Ti, Sr, Ba, Sc, Y, Al, Ga, In, Si, B and rare earth elements) and water, adjusting the concentration of the M element with respect to water to 4 moles/L or more to obtain a raw material, and producing olivine-type LiMPO4 by carrying out hydrothermal synthesis using the raw material.
    Type: Application
    Filed: March 24, 2014
    Publication date: July 24, 2014
    Applicant: SHOWA DENKO K.K.
    Inventors: Akihisa TONEGAWA, Akihiko SHIRAKAWA, Isao KABE, Gaku ORIJI
  • Patent number: 8784694
    Abstract: The invention relates to a lithium manganese phosphate/carbon nanocomposite as cathode material for rechargeable electrochemical cells with the general formula LixMnyM1-y(PO4)z/C where M is at least one other metal such as Fe, Ni, Co, Cr, V, Mg, Ca, Al, B, Zn, Cu, Nb, Ti, Zr, La, Ce, Y, x=0.8-1.1, y=0.5-1.0, 0.9<z<1.1, with a carbon content of 0.5 to 20% by weight, characterized by the fact that it is obtained by milling of suitable precursors of LixMnyM1-y(PO4)Z with electro-conductive carbon black having a specific surface area of at least 80 m2/g or with graphite having a specific surface area of at least 9.5 m2/g or with activated carbon having a specific surface area of at least 200 m2/g. The invention also concerns a process for manufacturing said nanocomposite.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: July 22, 2014
    Assignee: Dow Global Technologies LLC
    Inventor: Andreas Kay
  • Patent number: 8778230
    Abstract: A subject-matter of the invention is a novel process for the preparation of sulphur-modified monolithic porous carbon-based materials by impregnation with a strong sulphur-based acid, the materials capable of being obtained according to this process and the use of these materials with improved supercapacitance properties to produce electrodes intended for energy storage systems. Electrodes composed of sulphur-modified monolithic porous carbon-based materials according to the invention and lithium batteries and supercapacitors having such electrodes also form part of the invention.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: July 15, 2014
    Assignee: Hitchinson
    Inventors: David Ayme-Perrot, Marie Dieudonné, Philippe Sonntag, Anne-Caroline Pasquier
  • Publication number: 20140186708
    Abstract: The present invention provides electrochemical energy storage systems comprising metallolyte composites, iron fluoride composites and iron oxyfluoride composites. The present invention further provides methods for fabricating metallolyte composites.
    Type: Application
    Filed: November 26, 2013
    Publication date: July 3, 2014
    Inventors: Nathalie Pereira, Glenn Amatucci
  • Publication number: 20140186705
    Abstract: The invention relates to lithium-bearing iron phosphate in the form of micrometric mixed aggregates of nanometric particles, to an electrode and cell resulting therefrom and to the method for manufacturing same, which is characterized by a nanomilling step.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 3, 2014
    Inventors: Sébastien Patoux, Sébastien Martinet, Sébastien Launois, Alain Gourgue, Alain Germeau, Isabelle Willems
  • Publication number: 20140178765
    Abstract: A positive electrode active substance including a lithium-containing metal oxide represented by the following general formula (1): LiFe1-xMxP1-ySiyO4??(1) wherein M represents an element selected from Sn, Zr, Y, and Al; 0<x<1; and 0<y<1, wherein the lithium-containing metal oxide has a lattice constant and a half value width of a diffraction peak of a (011) plane.
    Type: Application
    Filed: November 14, 2013
    Publication date: June 26, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: KOJI OHIRA, Motoaki Nishijima, Toshitsugu Sueki, Shougo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
  • Publication number: 20140175337
    Abstract: A modified maleimide oligomer is disclosed. The modified maleimide oligomer is made by performing a reaction of a compound having a barbituric acid structure, a free radical capture, and a compound having a maleimide structure. A composition for a battery is also disclosed. The composition includes the modified maleimide oligomer.
    Type: Application
    Filed: June 3, 2013
    Publication date: June 26, 2014
    Inventors: Chorng-Shyan CHERN, Jing-Pin PAN, Chang-Rung YANG, Tsung-Hsiung WANG, Guan-Lin LAI, Jung-Mu HSU
  • Patent number: 8753533
    Abstract: Provided are a mixed cathode active material including lithium manganese oxide expressed as Chemical Formula 1 and a stoichiometric spinel structure Li4Mn5O12 having a plateau voltage profile in a range of 2.5 V to 3.3 V, and a lithium secondary battery including the mixed cathode active material. The mixed cathode material and the lithium secondary battery including the same may have improved safety and simultaneously, power may be maintained more than a required value by allowing Li4Mn5O12 to complement low power in a low state of charge (SOC) range. Therefore, a mixed cathode active material able to widen an available SOC range and a lithium secondary battery including the mixed cathode active material may be provided and properly used in a plug-in hybrid electric vehicle (PHEV) or electric vehicle (EV).
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: June 17, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Jung Hwan Park, Song Taek Oh, Geun Chang Chung, Su Hwan Kim, Juichi Arai
  • Publication number: 20140162129
    Abstract: In an aspect, a negative electrode active material, a method of preparing the same, and a lithium secondary battery having the negative electrode including the negative electrode active material is provided. The negative electrode active material may include amorphous silicon oxide, crystalline silicon, carbon, metal silicide, spherical particles and whiskers.
    Type: Application
    Filed: March 14, 2013
    Publication date: June 12, 2014
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Deok-Hyun Kim, Jae-Myung Kim, Kyu-Nam Joo, Soon-Sung Suh, Yeon-Gap Kim
  • Publication number: 20140154563
    Abstract: Composite particles for a positive electrode of an electrochemical element include a conductive material, a Ni containing positive electrode active material, a water soluble resin including a monomeric unit containing an acidic functional group, and a granular binder resin. The content of the water soluble resin is 1 to 10 parts by mass per 100 parts by mass of the Ni containing positive electrode active material. An electrochemical element includes a collector and a positive electrode active material layer obtained by formation with the composite particles. Furthermore, a method for producing the composite particles includes drying and granulating an aqueous slurry composition including the above components in order to obtain the composite particles. The content in the slurry composition of the water soluble resin is 1 to 10 parts by mass per 100 parts by mass of the Ni containing positive electrode active material.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 5, 2014
    Applicant: ZEON CORPORATION
    Inventor: Hiroki OGURO
  • Publication number: 20140151609
    Abstract: A slurry composition for composite particles for a positive electrode includes a positive electrode active material, a conductive material, a water soluble resin including a monomeric unit containing an acidic functional group, and a granular binder resin. The moisture content is at most 25% by mass, and the viscosity at a shear velocity of 10 s?1 is at most 2000 mPa·s. A method for producing composite particles for a positive electrode of an electrochemical element includes kneading a mixture including a positive electrode active material, a conductive material, and a water soluble resin including a monomeric unit containing an acidic functional group, preparing a slurry composition with a moisture content of at most 25% by mass and a viscosity at a shear velocity of 10 s?1 of at most 2000 mPa·s by adding a granular binder resin and water to the kneaded mixture, and spray drying the slurry composition.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 5, 2014
    Applicant: Zeon Corporation
    Inventor: Hiroki OGURO
  • Publication number: 20140154577
    Abstract: Compositions, and methods of obtaining them, useful for lithium ion batteries comprising discrete oxidized carbon nanotubes having attached to their surface lithium ion active materials in the form of nanometer sized crystals or layers. The composition can further comprise graphene or oxygenated graphene.
    Type: Application
    Filed: June 21, 2012
    Publication date: June 5, 2014
    Applicant: Molecular Rebar Design, LLC
    Inventors: Clive P. Bosnyak, Kurt W. Swogger
  • Publication number: 20140145121
    Abstract: The present invention relates to a combustion method for producing a lithium insertion material for a cathode in a Li-ion battery, the material comprising iron, lithium, silicon, and carbon.
    Type: Application
    Filed: June 7, 2012
    Publication date: May 29, 2014
    Applicant: HÖGANÄS AB (Publ)
    Inventors: Mohammed Dhabi, Torbjörn Gustafsson, Björn Skårman
  • Publication number: 20140147738
    Abstract: An electrode composite material is disclosed in the invention. The electrode composite material comprises ABxCyDz, wherein A is selected from at least one of polypyrrole, polyacrylonitrile, and polyacrylonitrile copolymer; B comprises sulfur; C is selected from carbon material; D is selected from metal oxides, l?x?20, 0?y<l, and 0?z<1. Comparing to the prior art, the conductivity of the electrode composite material is obviously increased, the material is dispersed uniformly and the size of the material is small. The electrochemical performance of the electrode composite material is improved. It has a good cycle life and high discharging capacity efficiency. A method for manufacturing the electrode composite material, a positive electrode using the electrode composite material and a battery including the same are also disclosed in the invention.
    Type: Application
    Filed: December 11, 2013
    Publication date: May 29, 2014
    Applicant: POSITEC POWER TOOLS (SUZHOU) CO., LTD
    Inventors: Pu Chen, Yongguang Zhang, Zhumabay Bakenov, Aishuak Konarov, The Nam Long Doan
  • Publication number: 20140145120
    Abstract: A method for producing an iron(III)orthophosphate-carbon composite which contains iron(III)orthophosphate of the general formula FePO4×nH2O (n?2.5), a carbon source being dispersed in a phosphoric aqueous Fe2+ ion-containing solution and orthophosphate-carbon composite being precipitated and removed from the aqueous solution when an oxidant is added to the dispersion.
    Type: Application
    Filed: January 23, 2012
    Publication date: May 29, 2014
    Applicant: CHEMISCHE FABRIK BUDENHEIM KG
    Inventors: Gunnar Buehler, Killian Schwarz, Andreas Jazdanian, Christian Graf, Michael Rapphahn
  • Publication number: 20140147727
    Abstract: Provided are a cathode active material having high capacity and excellent lifetime characteristics as well as being inexpensive by mixing transition metal oxide having high irreversible capacity with composite dimensional manganese oxide (CDMO) of the following Chemical Formula 1, which has high capacity and good lifetime characteristics but is difficult to be charged and discharged by being used alone, and a lithium secondary battery including the cathode active material: xMnO2·(1?x)Li2MnO3(0<x<1).
    Type: Application
    Filed: November 22, 2013
    Publication date: May 29, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hwan PARK, Hyun Seok LEE, Youn Kyoung LEE, Ji Hee AHN, Hoe Jin HAH
  • Publication number: 20140147744
    Abstract: Provided is a cathode material for lithium ion secondary battery containing a composite material of a lithium silicate crystal and a carbon material. The composite material shows a peak in a wave number range from 1400 cm?1 to 1550 cm?1 in infrared absorption spectrum and shows no peak in a wave number range from 1000 cm?1 to 1150 cm?1 in Raman spectrum.
    Type: Application
    Filed: July 2, 2012
    Publication date: May 29, 2014
    Applicant: SHOEI CHEMICAL INC.
    Inventors: Atsushi Nemoto, Maki Moriya, Hirokazu Sasaki
  • Patent number: 8734752
    Abstract: A method of synthesis of a fulleride of metal nano-cluster is provided. The method is characterized in mechanically alloying metal nano-clusters with fullerene-type clusters. Fullerene molecules in the fulleride of metal nano-cluster are preserved. The alloying is done by milling in a planetary mill. A material including a fulleride of a metal nano-cluster is also provided.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: May 27, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Vladimir Davidovich Blank, Gennadii Ivanovich Pivovarov, Mikhail Yurievich Popov
  • Patent number: 8734996
    Abstract: An anode of a lithium battery includes a supporting member and a carbon nanotube film disposed on a surface of the support member. The carbon nanotube film includes at least two overlapped and intercrossed layers of carbon nanotubes. Each layer includes a plurality of successive carbon nanotube bundles aligned in the same direction. A method for fabricating the anode of the lithium battery includes the steps of: (a) providing an array of carbon nanotubes; (b) pulling out, by using a tool, at least two carbon nanotube films from the array of carbon nanotubes; and (c) providing a supporting member and disposing the carbon nanotube films to the supporting member along different directions and overlapping with each other to achieving the anode of lithium battery.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: May 27, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Chen Feng, Kai-Li Jiang, Liang Liu, Xiao-Bo Zhang, Shou-Shan Fan
  • Publication number: 20140141332
    Abstract: Provided is a cathode material for a lithium ion secondary battery that includes a composite grain formed of lithium iron silicate crystals or lithium manganese silicate crystals and a carbon material. The composite grain has a sea-islands structure in which the lithium iron silicate crystals or lithium manganese silicate crystals are scattered like islands in the carbon material, and the islands have an average value of circle-equivalent diameter of smaller than 15 nm.
    Type: Application
    Filed: July 2, 2012
    Publication date: May 22, 2014
    Applicant: SHOEI CHEMICAL INC.
    Inventors: Atsushi Nemoto, Yuki Matsuda, Hirokazu Sasaki
  • Publication number: 20140134490
    Abstract: A process of preparing mesoporous nano-composite LiMn1-xFexPO4 (0?x?1, e.g., x=0, 0.2, 0.5 and 0.8) particles. The process contains the steps of providing a mixture of a soft-template compound, a lithium ion-containing compound, an iron ion-containing compound, a manganese ion-containing compound, and a phosphate ion-containing compound in a solvent, removing the solvent to obtain a LiMn1-xFexPO4 precursor, and calcining the precursor followed by milling and annealing. Also disclosed is a mesoporous nano-composite LiMn1-xFexPO4 particle prepared by this process.
    Type: Application
    Filed: June 27, 2012
    Publication date: May 15, 2014
    Applicant: National University of Singapore
    Inventors: Palani Balaya, Vishwanathan Ramar
  • Publication number: 20140124708
    Abstract: The invention relates to a novel method for producing a carbon-doped lithium sulfide powder, according to which elementary lithium is reacted with elementary sulfur and/or a sulfur-containing compound selected from the group containing CS2, COS, SO2 and SO, in a liquid state, in a hydrocarbon solvent except naphthalene. The products of the method according to the invention are used to produce lithium battery electrodes or a lithium-ion-conducting solid.
    Type: Application
    Filed: June 12, 2012
    Publication date: May 8, 2014
    Applicant: Chemetall GmbH
    Inventor: Ulrich Wietelmann
  • Publication number: 20140127562
    Abstract: 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: Application
    Filed: January 14, 2014
    Publication date: May 8, 2014
    Applicant: Belenos Clean Power Holding AG
    Inventors: Reinhard NESPER, Tommy KASPAR, Yoann METTAN
  • Patent number: 8715532
    Abstract: Disclosed herein is a reduced graphene oxide doped with a dopant, and a thin layer, a transparent electrode, a display device and a solar cell including the reduced graphene oxide. The reduced graphene oxide doped with a dopant includes an organic dopant and/or an inorganic dopant.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: May 6, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeon-jin Shin, Jae-young Choi, Seon-mi Yoon
  • Publication number: 20140120420
    Abstract: A composite electrode material consisting of a carbon coated complex oxide, fibrous carbon and a binder. Said material is prepared by a method which includes co-grinding an active electrode material and fibrous carbon, and adding a binder to the co-grinded mixture to lower the viscosity of the mixture. The fibrous carbon is preferably vapor grown carbon fibers.
    Type: Application
    Filed: January 7, 2014
    Publication date: May 1, 2014
    Applicants: SHOWA DENKO K.K., HYDRO-QUEBEC
    Inventors: KARIM ZAGHIB, CHIAKI SOTOWA, PATRICK CHAREST, MASATAKA TAKEUCHI, ABDELBAST GUERFI
  • Publication number: 20140110635
    Abstract: The invention relates to a novel method for producing a carbon-doped lithium sulfide powder, according to which elementary lithium is reacted with elementary sulfur and/or a sulfur-containing compound selected from the group containing CS2, COS, SO2 and SO, in a liquid state, in an aliphatic or cycloaliphatic hydrocarbon solvent. The products of the method according to the invention are used to produce lithium battery electrodes or a lithium-ion-conducting solid.
    Type: Application
    Filed: June 14, 2012
    Publication date: April 24, 2014
    Inventor: Ulrich Wietelmann
  • Patent number: 8703009
    Abstract: The present invention provides for a lithium ion battery and process for creating such, comprising higher binder to carbon conductor ratios than presently used in the industry. The battery is characterized by much lower interfacial resistances at the anode and cathode as a result of initially mixing a carbon conductor with a binder, then with the active material. Further improvements in cycleability can also be realized by first mixing the carbon conductor with the active material first and then adding the binder.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: April 22, 2014
    Assignee: The Regents of the University of California
    Inventors: Gao Liu, Vincent S. Battaglia, Honghe Zheng
  • Publication number: 20140103263
    Abstract: Provided is a cathode material capable of obtaining high energy density and superior instantaneous output characteristics in a lithium ion secondary battery. The cathode material is used in a lithium ion secondary battery (1), and includes FeF3 and LiV3O8 as a cathode active material. A mass ratio of FeF3 to LiV3O8 of the cathode material is in a range of 86:14 to 43:57. The cathode material further comprises a conductive auxiliary.
    Type: Application
    Filed: October 14, 2013
    Publication date: April 17, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yuji Isogai, Shintaro Aoyagi, Kaoru Omichi
  • Publication number: 20140103264
    Abstract: A method for modifying a positive electrode material for a lithium-ion battery. The method includes: a) grinding a mixture of manganese dioxide and lithium carbonate, and calcining the mixture at no less than a temperature of 600° C. for no less than 20 hrs in the presence of air, to yield a powdery lithium manganese oxide (LiMn2O4); b) adding a precursor for forming a graphene-like structure to the powdery LiMn2O4, mixing, curing at a constant temperature of no less than 180° C. for between 2 and 4 hrs, grinding, and calcining at no less than a temperature of 500° C. for between 1 and 50 hrs in the presence of an inert gas, to yield a composite powder comprising a graphene-like structure and LiMn2O4; and c) collecting and sintering the composite powder at a temperature of between 300 and 500° C. for between 1 and 10 hrs in the presence of air.
    Type: Application
    Filed: December 19, 2013
    Publication date: April 17, 2014
    Inventors: Jianhong LIU, Hongzhen ZHANG, Qianling ZHANG, Dayong GUI, Chuanxin HE, Caizhen ZHU
  • Publication number: 20140103297
    Abstract: Various methods and apparatuses involve the provision of graphitic material. As consistent with one or more aspects herein, an organic material template is used to restrict growth, in a width dimension, of graphitic material grown from the organic material template. Graphitic material is therein provided, having a set of characteristics including electrical behavior and shape, with a representative width defined by the width dimension, based on the organic material template.
    Type: Application
    Filed: August 30, 2013
    Publication date: April 17, 2014
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Anatoliy N. Sokolov, Fung Ling Yap, Zhenan Bao, Nan Liu
  • Publication number: 20140106215
    Abstract: A lithium ion battery includes a positive electrode comprising carbon fibers, a binder composition with conductive carbon, and a lithium rich composition. The lithium rich composition comprises at least one selected from the group consisting of Li1+x(My MzII MwIII)O2 where x+y+z=1, and xLi2MnO3(1?x)LiMO2, where x=0.2-0.7, and where M, MII and MIII are interchangeably manganese, nickel and cobalt, and LiM2?xMxIIO4 , where M and MII are manganese and nickel, respectively, with x=0.5. A negative electrode comprises carbon fibers having bound thereto silicon nanoparticles, and a mesophase pitch derived carbon binder between the silicon nanoparticles and the carbon fibers. An electrolyte is interposed between the positive electrode and the negative electrode. Methods of making positive and negative electrodes are also disclosed.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 17, 2014
    Applicant: UT-BATTELLE, LLC
    Inventor: UT-BATTELLE, LLC
  • Patent number: 8696943
    Abstract: A catalyst for producing a carbon nanofiber is obtained by dissolving or dispersing [I] a compound containing Fe element; [II] a compound containing Co element; [III] a compound containing at least one element selected from the group consisting of Ti, V, Cr, and Mn; and [IV] a compound containing at least one element selected from the group consisting of W and Mo in a solvent to obtain a solution or the fluid dispersion, and then impregnating a particulate carrier with the solution or the fluid dispersion. A carbon nanofiber is obtained by bringing a carbon element-containing compound into contact with the catalyst in a vapor phase at a temperature of 300 degrees C. to 500 degrees C.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: April 15, 2014
    Assignee: Showa Denko K.K.
    Inventors: Eiji Kambara, Akihiro Kitazaki
  • Patent number: 8691441
    Abstract: 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: Grant
    Filed: September 7, 2010
    Date of Patent: April 8, 2014
    Assignee: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, Jinjun Shi, Guorong Chen, Ming C. Wang, Bor Z. Jang
  • Publication number: 20140087164
    Abstract: Inks for the formation of transparent conductive films are described that comprise an aqueous or alcohol based solvent, carbon nanotubes as well as suitable dopants. Suitable dopants generally comprise halogenated ionic dopants. In some embodiment, the inks comprise sulfonated dispersants that can effectively provide additional doping to improve electrical conductivity as well as stabilize the inks with respect to settling and/or improve the fluid properties of the inks for certain processing approaches. The inks can be processed into films with desirable levels of electrical conductivity and optical transparency.
    Type: Application
    Filed: September 24, 2012
    Publication date: March 27, 2014
    Applicant: C3NANO INC.
    Inventors: Melburne C. LeMieux, Ajay Virkar, Yung-Yu Huang
  • Publication number: 20140084219
    Abstract: In some embodiments, the present invention pertains to carbon nanotube fibers that include one or more fiber threads. In some embodiments, the fiber threads include doped multi-walled carbon nanotubes, such as doped double-walled carbon nanotubes. In some embodiments, the carbon nanotubes are functionalized with one or more functional groups. In some embodiments, the carbon nanotube fibers are doped with various dopants, such as iodine and antimony pentafluoride. In various embodiments, the carbon nanotube fibers of the present invention can include a plurality of intertwined fiber threads that are twisted in a parallel configuration with one another. In some embodiments, the carbon nanotube fibers include a plurality of fiber threads that are tied to one another in a serial configuration. In some embodiments, the carbon nanotube fibers of the present invention are also coated with one or more polymers.
    Type: Application
    Filed: February 28, 2012
    Publication date: March 27, 2014
    Applicant: William Marsh Rice University
    Inventors: Yao Zhao, Jinquan Wei, Padraig G. Moloney, Pulickel M. Ajayan, Enrique V. Barrera
  • Patent number: 8673462
    Abstract: A system, in one embodiment, includes an ESD adhesive operatively coupled to leads of an electronic device for providing ESD protection thereto, the ESD adhesive including a mixture of a polymeric thin film and electrically conductive fillers dispersed in the polymeric thin film, and has a structural characteristic of being formed through at least partial evaporation of a solvent therefrom and being substantially free of agglomerates of the electrically conductive fillers. In another embodiment, a method for providing ESD protection to an element of an electronic device includes preventing formation of agglomerates of electrically conductive fillers in an ESD adhesive that includes a polymeric thin film, the electrically conductive fillers dispersed therein, and a solvent by subjecting the ESD adhesive to high-energy mixing during formation thereof, applying the ESD adhesive across exposed leads, such as leads of a cable, PCB, or other substrate, and evaporating solvent from the ESD adhesive.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: March 18, 2014
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Myron H. Gentrup, Icko E. T. Iben
  • Publication number: 20140060602
    Abstract: An electrically conductive composition, containing (A) a carbon nanotube, (B) an electrically conductive polymer, and (C) an onium salt compound, an electrically conductive film using the composition, and a method of producing the electrically conductive film.
    Type: Application
    Filed: September 27, 2013
    Publication date: March 6, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Toshiaki AOAI, Ryo NISHIO, Naoyuki HAYASHI
  • Patent number: 8663506
    Abstract: A method relating to making a metal coated filler includes mixing a solution of an organic diol with a plurality of porous filler particles to obtain a support mixture; contacting a metal salt solution with the support mixture forming a reaction mixture; and heating the reaction mixture to a temperature within a temperature range from about 50 degrees Celsius to about 200 degrees Celsius. The metal cations in the metal salt solution are reduced to metal particles by the organic diol and are disposed on the porous filler particles and on filler particle pore surfaces. The metal coated filler may then be optionally isolated. Electrically and/or thermally conductive articles including the metal coated fillers and methods for their manufacture are also disclosed.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: March 4, 2014
    Assignee: Laird Technologies, Inc.
    Inventors: Bukkinakere Kapanipathaiya Chandrasekhar, Shalini Kandoor, Adyam Srinivasa Mukunda
  • Publication number: 20140054511
    Abstract: The present invention provides a method for transferring phases of nanoparticles, which use a polymer with a molecular weight greater than 5,000 as a dispersant. The first step of the method of the present invention is to synthesize nanoparticles in the polymer aqueous solution. Next, an amphiphilic phase-transfer agent is added into the solution to coat the surface of nanoparticles with bipolar molecules, and then the mixture is added into an organic solvent to form a homogeneous solution. Finally, a salt and an alcohol are added into the homogeneous solution, and then an organic phase layer and an aqueous phase layer through a centrifugal method. The method of the present invention combines the advantages of aqueous process for preparing nanoparticles and transfers the same with a simple phase transferring process to obtain oil-phase nanoparticles, which can be applied to various fields.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 27, 2014
    Applicant: National Tsing Hua University
    Inventors: Kan-Sen CHOU, Yi-Chu CHEN
  • Publication number: 20140054490
    Abstract: Metal-graphene nanocomposites, metal-oxide-graphene nanocomposites, and method for their preparation are described. According to some embodiments, a metal salt is combined with graphite oxide (GO) to form a metal salt-GO composite. The metal salt-GO composite is reduced to a metal-graphene or metal oxide-graphene nanocomposite material. The metals may be magnetic or non-magnetic. In some embodiments, the reduction is conducted via exposure to intensified electromagnetic radiation, such as focused solar radiation.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 27, 2014
    Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
    Inventors: Ramaprabhu SUNDARA, Eswaraiah VARRLA, Jyothirmayee Aravind SASIDHARANNAIR SASIKALADEVI
  • Patent number: 8652361
    Abstract: The invention relates to a composite electrode material consisting of a carbon coated complex oxide, fibrous carbon and a binder. Said material is prepared by a method which comprises co-grinding an active electrode material and fibrous carbon, and adding a binder to the co-grinded mixture to lower the viscosity of the mixture. The fibrous carbon is preferably vapor grown carbon fibers.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: February 18, 2014
    Assignees: Hydro-Quebec, Showa Denko K.K.
    Inventors: Karim Zaghib, Chiaki Sotowa, Patrick Charest, Masataka Takeuchi, Abdelbast Guerfi
  • Publication number: 20140042372
    Abstract: The present invention provides a method for producing a cathode-active material containing an olivine-type lithium metal phosphate for a lithium secondary battery which does not need washing or sintering after hydrothermal synthesis, the method including a step in which hydrothermal synthesis is carried out by using a mixture containing HMnPO4 and a lithium source as a raw material to produce an olivine-type lithium metal phosphate.
    Type: Application
    Filed: April 16, 2012
    Publication date: February 13, 2014
    Applicant: SHOWA DENKO K.K.
    Inventor: Akihisa Tonegawa
  • Publication number: 20140038035
    Abstract: A positive active material composition for a rechargeable lithium battery that includes a positive active composite material including a compound being reversibly capable of intercalating and deintercalating lithium, WO3, and a binder; and an aqueous binder, a positive electrode for a rechargeable lithium battery including the positive active material composition, and a rechargeable lithium battery comprising the positive electrode including the positive active material composition.
    Type: Application
    Filed: February 19, 2013
    Publication date: February 6, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Chae-Woong Cho, Myung-Duk Lim, Seung-Hun Han