With Metal Compound Patents (Class 252/506)
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Patent number: 9245662Abstract: An electroconductive particle having a core particle and a tin oxide-containing coating layer on the core particle. The tin oxide of the coating layer has a crystallite size of 70 to 200 ?. The electroconductive particle preferably has a ratio of R3 to R1 of 1 to 250, wherein R1 and R3 are respective surface resistivities of electroconductive films formed of a coating composition containing the electroconductive particle and prepared by 1-hour dispersing and 3-hour dispersing, respectively. The coating layer preferably comprises dopant element-free, electroconductive tin oxide.Type: GrantFiled: August 20, 2013Date of Patent: January 26, 2016Assignee: MITSUI MINING & SMELTING CO., LTD.Inventors: Akihiro Nara, Hiroyuki Iseki, Takahiko Sakaue
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Patent number: 9181440Abstract: An electrically conductive paste providing low alpha particle emission is provided. A resin and conductive particles are mixed, and a curing agent is added. A solvent is subsequently added. The electrically conductive paste including a resin compound is formed by mixing the mixture in a high shear mixer. The electrically conductive paste can be applied to a surface of an article to form a coating, or can be molded into an article. The solvent is evaporated, and the electrically conductive paste is cured to provide a graphite-containing resin compound. The graphite-containing resin compound is electrically conductive, and provides low alpha particle emission at a level suitable for a low alpha particle emissivity coating.Type: GrantFiled: August 29, 2013Date of Patent: November 10, 2015Assignee: GLOBALFOUNDRIES U.S. 2 LLCInventors: Michael A. Gaynes, Michael S. Gordon, Eric P. Lewandowski
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Patent number: 9172091Abstract: Provided are a core-shell type anode active material for lithium secondary batteries including a carbonaceous material core; and a shell formed outside the carbonaceous material core, the shell including a PTC (Positive Temperature Coefficient) medium. The core-shell type anode active material for lithium secondary batteries has the shell including the PTC medium, and thus has the improved conductivity and high output density, exhibiting excellent electrical characteristics. And, a lithium secondary battery manufactured using the anode active material has excellent safety, in particular safety against overcharge and external short circuit.Type: GrantFiled: December 16, 2008Date of Patent: October 27, 2015Assignee: Kokam Co., Ltd.Inventors: Ji-Jun Hong, Sung-Tae Ko, Yoon-Jeong Heo
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Patent number: 9160147Abstract: A spark plug having excellent load life performance, and a method of manufacturing the same, the spark plug having a connecting portion which electrically connects a center electrode and a metallic terminal within the axial hole of an insulator, the connecting portion including a resistor whose porosity is 5.0% or less.Type: GrantFiled: September 7, 2011Date of Patent: October 13, 2015Assignee: NGK SPARK PLUG CO., LTD.Inventors: Haruki Yoshida, Toshitaka Honda, Houju Fukushima
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Publication number: 20150147646Abstract: A conductive coating composition for use in electrical energy storage devices, which contain a non-aqueous electrolyte, is provided comprising an organic polymeric binder comprising one or more water-soluble polymers; water; solid conductive particles dispersed in the binder; and phosphorus based acid bound to at least one of the water-soluble polymers and present in a range of 0.025-10.0% by weight of the water-soluble polymers, as well as methods of making and using said conductive coating composition, coated current collectors and electrical energy storage devices made therefrom.Type: ApplicationFiled: November 22, 2013Publication date: May 28, 2015Inventors: John D. McGee, John Zimmermann, Gregory T. Donaldson, John T. Comoford, Andrew M. Dahl
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Patent number: 9039939Abstract: A production method of an active material, and the active material are provided to realize an active material containing metal-containing particles and being capable of achieving satisfactory cycle performance and rate performance. The active material is produced by a method of polymerizing a mixture of a metal ion, a hydroxy acid, and a polyol to obtain a polymer, and a step of carbonizing the polymer. The active material used is one having a carbonaceous porous material, and metal particles and/or metal oxide particles supported in pores of the carbonaceous porous material, and particle diameter of the metal-containing particles are in the range of 10 to 300 nm.Type: GrantFiled: March 20, 2008Date of Patent: May 26, 2015Assignee: TDK CORPORATIONInventor: Atsushi Sano
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Publication number: 20150140431Abstract: A method for producing a positive electrode active material for nonaqueous secondary batteries, the positive electrode active material using a polyanionic active material. The method includes the steps of mixing raw materials of the positive electrode active material with each other, pre-calcining the mixed raw materials in an oxidizing atmosphere at a temperature ranging from 400 to 600° C. both inclusive, mixing carbon or an organic substance with a pre-calcinated material yielded through the pre-calcining step, and the step of calcining the pre-calcinated material, with which the carbon or the organic substance is mixed in a reducing atmosphere or an inert atmosphere.Type: ApplicationFiled: March 15, 2013Publication date: May 21, 2015Inventors: Kan Kitagawa, Toyotaka Yuasa
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Publication number: 20150140425Abstract: A cathode material comprising an active material, a carbon material, a binder polymer, a lithium salt, and a solvent. The cathode material has a viscosity in the range from about from about 3.0 to about 30.0 cP such that the cathode material can be applied to a surface using an ink jet print head. An anode base material includes from about 50% to about 85% by weight of metallic lithium particles substantially free from other metals and from about 15% to about 50% by weight of a solvent. The anode base material has a viscosity such that the anode base material can be extruded.Type: ApplicationFiled: November 13, 2014Publication date: May 21, 2015Inventors: Theodore F. Cyman, Jr., Kevin J. Hook, Pamela Geddes, Alan R. Murzynowski, James W. Blease, Daniel E. Kanfoush
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Publication number: 20150138693Abstract: [Problem to be Solved] The present invention is aimed at providing a polarizable electrode material for a high-withstand-voltage-type electric double layer capacitor with a high energy density and less degradation over time in capacitance and resistance, that is, excellent long-term reliability; and at providing an electric double layer capacitor in which the polarizable electrode material is used. [Solution] Disclosed are the polarizable electrode material used in an electric double layer capacitor and comprising porous carbon particles, a conductive assistant, a tungsten oxide powder and a binder, wherein the tungsten oxide is dispersed in the polarizable electrode material so that the tungsten oxide per 1 g of the polarizable electrode material has a surface area of 0.2 m2 or more and less than 6 m2; and the electric double layer capacitor in which the polarizable electrode material is used.Type: ApplicationFiled: July 25, 2013Publication date: May 21, 2015Inventor: Hiroyuki Norieda
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Patent number: 9034213Abstract: The separation of single-walled carbon nanotubes (SWNTs), by electronic type using centrifugation of compositions of SWNTs and surface active block copolymers in density gradient media.Type: GrantFiled: May 31, 2011Date of Patent: May 19, 2015Assignee: Northwestern UniversityInventors: Mark C. Hersam, Alexander L. Antaris, Alexander A. Green
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Publication number: 20150132660Abstract: The present invention concerns electrode materials capable of redox reactions by electron and alkali-ion exchange with an electrolyte. The applications are in the field of primary (batteries) or secondary electrochemical generators, supercapacitors and light modulating systems of the electrochromic type.Type: ApplicationFiled: January 22, 2015Publication date: May 14, 2015Inventors: Nathalie Ravet, Simon Besner, Martin Simoneau, Alain Vallee, Michel Armand, Jean-Francois Magnan, Karim Zaghib
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Publication number: 20150132647Abstract: [Problem] Provided is a slurry composition which has an excellent viscosity stability and thus, after being applied to a current collector for an electrode and drying, has an excellent adhesion with the current collector. [Solving Means] A slurry composition which is used for manufacturing an electrode for an electrochemical cell contains a lithium ion, comprising a polymer binder resin, a pH adjusting agent, and an active material, wherein the pH is from 2.0 to 9.0.Type: ApplicationFiled: November 12, 2014Publication date: May 14, 2015Applicant: TAIYO INK MFG. CO., LTD.Inventor: Fumitaka KATO
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Publication number: 20150123042Abstract: A paste suitable for a negative plate of a lead-acid battery, the paste comprising lead oxide and carbon black, wherein the carbon black has the following properties: (a) a BET surface area between about 100 and about 2100 m2/g; and (b) an oil adsorption number (OAN) in the range of about 35 to about 360 cc/100 g, provided that the oil absorption number is less than the 0.14×the BET surface area+65.Type: ApplicationFiled: January 8, 2015Publication date: May 7, 2015Inventors: Paolina Atanassova, Berislav Blizananc, Miodrag Oljaca, Toivo T. Kodas, Geoffrey D. Moeser, Pavel A. Kossyrev, Ned J. Hardman
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Publication number: 20150123110Abstract: An oxide semiconductor composition comprises graphene, a metal oxide precursor, and a solvent. Based on a total weight of the oxide semiconductor composition, a concentration of the graphene is between 0.01 and 10 wt %, a concentration of the metal oxide is between 0.01 and 30 wt %, and a concentration of the solvent is between 60 and 99.98 wt %.Type: ApplicationFiled: December 18, 2013Publication date: May 7, 2015Applicant: Chunghwa Picture Tubes, LTD.Inventors: Chia-Sheng Hsieh, Jan-Tian Lian, Hung-Yu Wu, Hsin-Min Fu, Jang-Jeng Liang
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Patent number: 9023252Abstract: 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: GrantFiled: June 14, 2012Date of Patent: May 5, 2015Assignee: Rockwood Lithium GmbHInventor: Ulrich Peter Wietelmann, I
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Patent number: 9023527Abstract: A new electroactive material of formula H4V3O8 obtainable from H2V3O8 is described as well as a method for its production, an electroactive cathode coating material comprising this electroactive material, a method for its production and cathodes as well as aqueous and non aqueous, rechargeable and non rechargeable batteries comprising such cathodes.Type: GrantFiled: December 12, 2012Date of Patent: May 5, 2015Assignee: Belenos Clean Power Holding AGInventors: Yoan Mettan, Reinhard Nesper
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Publication number: 20150115206Abstract: A predoping method for lithium, which is characterized by mixing and kneading, in the presence of a solvent, lithium metal with (a) silicon and a composite dispersion of silicon and silicon dioxide, (b) particles represented by SiOx (wherein 0.5?x<1.6) and having a fine structure wherein fine silicon particles are dispersed in a silicon-based compound, and (c) an Si-based material that is a mixture of one or more oxides selected from among the lower oxides of silicon represented by the above-mentioned formula and that is capable of absorbing and desorbing lithium ions; a lithium-predoped electrode which uses the predoping method for lithium; and an electricity storage device.Type: ApplicationFiled: May 8, 2013Publication date: April 30, 2015Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Masanori Fujii, Hisashi Satake, Hajime Kinoshita
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Publication number: 20150118560Abstract: The present invention relates to a process for producing electrode materials, which comprises the following steps: (a) mixing the following with one another: (A) at least one phosphorus compound, (B) at least one lithium compound, (C) at least one carbon source, (D1) at least one water-soluble iron compound in which Fe is present in the +2 or +3 oxidation state, (D2) at least one iron source which is different than (D1) and is water-insoluble and in which Fe is present in the zero, +2 or +3 oxidation state, (b) thermally treating the mixture obtained.Type: ApplicationFiled: April 29, 2013Publication date: April 30, 2015Applicant: BASF SEInventors: Bastian Ewald, Ivana Krkljus, Jordan Keith Lampert
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Publication number: 20150118559Abstract: A composition for forming an electrode of a lithium secondary battery of the present invention includes: an active material represented by the following general formula (1), which is coated with conductive carbon; a dispersant; a binder; and a solvent, wherein, as the active material, secondary particles with different particle diameters are used in combination with granulated particles wherein the secondary particles are respectively formed from fine primary particles having an average primary particle diameter of 50 to 300 nm. LiFe1-xMxPO4(0?x?1)??General formula (1): (In the formula, M denotes a metallic element of at least one type selected from the group consisting of Mn, Co, Ni and V.Type: ApplicationFiled: April 26, 2013Publication date: April 30, 2015Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.Inventors: Takanori Ito, Akihiko Hatemata, Yasuyuki Moroishi, Yoshiyuki Onai, Jyunko Sakaki
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Publication number: 20150108412Abstract: A manganese(Mn)-bearing monometal phosphate of the type Mn3(PO4)2.3H2O or mixed-metal phosphate of the type (Mnx, Mety)3(PO4)2.3H2O, wherein x+y=1 and Met represents one or more metals selected from Fe, Co, Ni, Sc, Ti, V, Cr, Cu, Zn, Be, Mg, Ca, Sr, Ba, Al, Zr, Hf, Re, Ru, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, characterised in that in the X-ray powder diffraction diagram the phosphate has peaks at 10.96±0.05, 12.78±0.17, 14.96±0.13, 17.34±0.15, 18.98±0.18, 21.75±0.21, 22.07±0.11, 22.97±0.10, 25.93±0.25, 26.95±0.30, 27.56±0.10, 29.19±0.12, 29.84±0.21, 30.27±0.12, 34.86±0.21, 35.00±0.20, 35.33±0.30, 35.58±0.10, 35.73±0.12, 42.79±0.45, 43.37±0.45, 44.70±0.15 and 44.93±0.20 degrees two-theta, based on CuK?-radiation.Type: ApplicationFiled: December 21, 2012Publication date: April 23, 2015Inventors: Gunnar Buehler, Christian Graf, Andreas Jazdanian, Killian Schwarz, Michael Rapphahn
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Publication number: 20150108411Abstract: A method for preparing graphene nanoplate (GNP) is provided and includes preparing expanded graphite (EG) and exfoliating, grinding, or cracking the expanded graphite to crack the EG induced by gas-phase-collision. A graphene nanoplate paste and a conductive coating layer formed of the graphene nanoplate paste are provided and are prepared by the method for preparing graphene nanoplate.Type: ApplicationFiled: December 30, 2013Publication date: April 23, 2015Applicants: Korea Institute of Ceramic Engineering and Technology, HYUNDAI MOTOR COMPANYInventors: Kwang Il Chang, Chul Kyu Song, Dha Hae Kim, Seung Hun Hur
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Publication number: 20150107093Abstract: A method of making a positive electrode includes forming a slurry of particles using an electrode formulation, a diluent, and oxalic acid, coating the slurry on a collector and drying the coating on the collector to form the positive electrode. The electrode formulation includes an electrode active material, a conductive carbon source, an organic polymeric binder, and a water soluble polymer. The diluent consists essentially of water.Type: ApplicationFiled: July 28, 2014Publication date: April 23, 2015Inventors: Qiang Luo, Junwei Jiang, Yongkyu Son, Bernhard M. Metz, Patrick T. Hurley
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Patent number: 9011731Abstract: A method for preparing a negative electrode material of a lithium ion battery is provided. In the method, a solvent-thermal reaction of a graphite material and a modifier precursor in an organic solvent is conducted to form a reaction product. And then, the reaction product is dried. Next, a heat treatment is applied to the dried reaction product to obtain the negative electrode material. The negative electrode material prepared by the method has improved cycle stability and high current performance.Type: GrantFiled: October 28, 2012Date of Patent: April 21, 2015Assignee: Microvast Power Systems Co., Ltd.Inventors: Lingyan Fu, Hui Li, Xiaoping Zhou
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Publication number: 20150102267Abstract: The present invention relates to a method for preparing a graphene-based LiFePO4/C composite material, to solve the problem of poor conductivity and rate performance of lithium iron phosphate cathode material. The main features of the present invention include the steps of: 1) preparing an iron salt solution having graphene oxide dispersed therein; 2) preparing a ferric phosphate/graphene oxide precursor; 3) preparing the graphene-based LiFePO4/C composite material. The beneficial effects of the method is that the process is simple, easy to control and the resulted graphene-based LiFePO4/C composite material has high specific capacity, good recycle performance and excellent rate capability is particularly suitable to the field of the power battery application.Type: ApplicationFiled: May 9, 2013Publication date: April 16, 2015Applicant: GUOGUANG ELECTRIC COMPANY LIMITEDInventors: Guorong Hu, Yanbing Cao, Kaipeng Wu, Zhongdong Peng, Ke Du
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Publication number: 20150104709Abstract: A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1-xMxP1-ySiyO4??(1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0<x?0.5; and y=x×({valence of M}?2)+(1?x)×({average valence of Fe}?2). This provides a cathode active material that not only excels in terms of safety and cost but also can provide a long-life battery.Type: ApplicationFiled: December 18, 2014Publication date: April 16, 2015Inventors: Koji OHIRA, Motoaki NISHIJIMA, Toshitsugu SUEKI, Shogo ESAKI, Isao TANAKA, Yukinori KOYAMA, Katsuhisa TANAKA, Koji FUJITA, Shunsuke MURAI
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Publication number: 20150090940Abstract: The present application relates to a process for the preparation of compounds of general formula (I) Lia?bM1bFe1?cM2cPd?eM3eOx??(I), wherein M1, M2, M3, a, b, c, d, e and x: M1: Na, K, Rb and/or Cs, M2: Mn, Mg, Ca, Ti, Co, Ni, Cr, V, M3: Si, S, a: 0.8-1.9, b: 0-0.3, c: 0-0.9, d: 0.8-1.9, e: 0-0.5, x: 1.Type: ApplicationFiled: December 8, 2014Publication date: April 2, 2015Applicant: BASF SEInventors: Hartmut HIBST, Brian Roberts, Jordan Keith Lampert, Kirill Bramnik
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Patent number: 8992801Abstract: The present invention relates to a novel electroactive material which comprises a graphitic carbon phase C and a (semi)metal phase and/or a (semimetal) oxide phase (MOx phase) and also to the use of the electroactive material in anodes for lithium ion cells. The invention further relates to a process for producing such materials. The electroactive material comprises: a) a carbon phase C; b) at least one MOx phase, where M is a metal or semimetal, x is from 0 to <k/2, where k is the maximum valence of the metal or semimetal. In the electroactive material of the invention, the carbon phase C and the MOx phase form essentially co-continuous phase domains, with the average distance between two neighboring domains of identical phases being not more than 10 nm, in particular not more than 5 nm and especially not more than 2 nm.Type: GrantFiled: April 1, 2010Date of Patent: March 31, 2015Assignee: BASF SEInventors: Hannah Maria König, Kirill Bramnik, Arno Lange, Phillip Hanefeld
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Patent number: 8992799Abstract: A polymer composite composed of a polymerized mixture of functionalized carbon nanotubes and monomer which chemically reacts with the functionalized nanotubes. The carbon nanotubes are functionalized by reacting with oxidizing or other chemical media through chemical reactions or physical adsorption. The reacted surface carbons of the nanotubes are further functionalized with chemical moieties that react with the surface carbons and selected monomers. The functionalized nanotubes are first dispersed in an appropriate medium such as water, alcohol or a liquefied monomer and then the mixture is polymerized. The polymerization results in polymer chains of increasing weight bound to the surface carbons of the nanotubes. The composite may consists of some polymer chains imbedded in the composite without attachment to the nanotubes.Type: GrantFiled: October 26, 2005Date of Patent: March 31, 2015Assignee: Hyperion Catalysis International, Inc.Inventors: Chunming Niu, Lein Ngaw
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Publication number: 20150083975Abstract: In an aspect, a binder composition, a cathode including the same, and a lithium battery including the cathode, wherein the binder composition includes a first fluorine containing binder including a polar functional group; a second fluorine containing binder not including a polar functional group; and a non-fluorine containing binder including a repeating unit resulting from polymerization of an acryl monomer and a repeating unit resulting from polymerization of an olefin monomer, wherein the first fluorine containing binder is a vinylidene fluoride containing binder is provided.Type: ApplicationFiled: January 29, 2014Publication date: March 26, 2015Applicant: Samsung SDI Co., Ltd.Inventors: Jung-Ock Yeou, Beom-Wook Lee, Sam-Jin Park
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Publication number: 20150083976Abstract: A composition includes an active material, a conductive agent, lithium dodecyl sulfate, a solvent, and an organic binder. Another composition includes an active compound containing lithium, a conductive agent, lithium dodecyl sulfate, a solvent and an organic binder. Another composition includes an anode active material, a conductive agent, lithium dodecyl sulfate, a solvent and an organic binder.Type: ApplicationFiled: September 24, 2013Publication date: March 26, 2015Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: RANJEET RAO, CHANG-JUN BAE
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Patent number: 8980126Abstract: To provide a power storage device including an electrode material having a large capacity. First heat treatment is performed on a mixture of a compound containing lithium; a compound containing a metal element selected from manganese, iron, cobalt, and nickel; and a compound containing phosphorus. A cleaning step is performed on the mixture subjected to the first heat treatment. Second heat treatment is performed on the mixture subjected to the cleaning step, so that a lithium phosphate compound is produced. With the use of the lithium phosphate compound, an electrode is formed.Type: GrantFiled: October 3, 2011Date of Patent: March 17, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takahiro Kawakami, Shunpei Yamazaki
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Publication number: 20150069305Abstract: A doped, passivated graphene nanomesh includes a graphene nanomesh, a plurality of nanoholes formed in a graphene sheet, and a plurality of carbon atoms which are formed adjacent to the plurality of nanoholes; a passivating element bonded to the plurality of carbon atoms; and a dopant bonded to the passivating element, the dopant comprising one of an electron-donating element for making the graphene nanomesh an n-doped graphene nanomesh, and an electron-accepting element for making the graphene nanomesh a p-doped graphene nanomesh.Type: ApplicationFiled: November 14, 2014Publication date: March 12, 2015Inventors: Ahmed Abou-Kandil, Ahmed Maarouf, Glenn John Martyna, Hisham Mohamed, Dennis M. Newns
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Patent number: 8974706Abstract: Provided is a composition comprising a polymeric material, a filler material dispersed in the polymeric material, the filler material comprising inorganic particles and a discontinuous arrangement of conductive material wherein at least a portion of the conductive material is in durable electrical contact with the inorganic particles, and conductive material dispersed in the polymeric material.Type: GrantFiled: December 7, 2010Date of Patent: March 10, 2015Assignee: 3M Innovative Properties CompanyInventors: Nanayakkara L. D. Somasiri, Jimmie R. Baran, Jr., Andrew C. Lottes, Ge Jiang, Badri Veeraraghavan, Paul V. Huynh, Dipankar Ghosh
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Publication number: 20150062781Abstract: The present application is directed to electric double layer capacitance (EDLC) devices. In one aspect, the present application is directed to an electrode comprising an activated carbon cryogel having a tunable pore structure wherein: the surface area is at least 1500 m2/g as determined by nitrogen sorption at 77K and BET analysis; and the pore structure comprises a pore volume ranging from about 0.01 cc/g to about 0.25 cc/g for pores having a pore diameter of 0.6 to 1.0 nm. In another aspect, the present application is directed to an Electric Double Layer Capacitor (EDLC) device comprising an activated cryogel.Type: ApplicationFiled: July 31, 2014Publication date: March 5, 2015Inventors: Aaron M. Feaver, Guozhong Cao
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Publication number: 20150056516Abstract: Lithium ion battery electrodes including graphenic carbon particles are disclosed. Lithium ion batteries containing such electrodes are also disclosed. The graphenic carbon particles may be used in cathodes of such batteries by depositing a graphenic carbon particle-containing coating of a conductive substrate such as a metal foil The use of graphenic carbon particles in the cathodes results in improved performance of the lithium ion batteries.Type: ApplicationFiled: October 31, 2014Publication date: February 26, 2015Inventors: Stuart D. Hellring, Randy E. Daughenbaugfh, Noel R. Vanier, Cheng-Hung Hung, John W. Burgman
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Publication number: 20150056496Abstract: A lithium sulfur cell has a cathode including Li3PS4+n (0<n<9), an electrolyte, and an anode comprising lithium. A cathode for a lithium sulfur cell is also disclosed.Type: ApplicationFiled: August 23, 2013Publication date: February 26, 2015Inventors: CHENGDU LIANG, NANCY J. DUDNEY, ZHAN LIN, ZENGCAI LIU
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Patent number: 8961833Abstract: 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: GrantFiled: August 10, 2011Date of Patent: February 24, 2015Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Shengshui Zhang, Donald L. Foster, Jeffery Wolfenstine, Jeffery A. Read
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Patent number: 8962504Abstract: The disclosure provides novel graphene-reinforced ceramic composites and methods for making such composite materials.Type: GrantFiled: July 27, 2012Date of Patent: February 24, 2015Assignee: Arizona Board of Regents on Behalf of The University of ArizonaInventors: Erica L. Corral, Luke S. Walker, Victoria R. Marotto, Mohammad A. Rafiee, Nikhil Koratkar
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Publication number: 20150044566Abstract: An electronically active glass has the composition (TxOy)z-(MuOv)w—(Na/LiBO2)t wherein T is a transition metal selected from V and Mo, M is a metal selected from Ni, Co, Na, Al, Mn, Cr, Cu, Fe, Ti and mixtures thereof, x, y, u, and v are the stoichiometric coefficients resulting in a neutral compound, i.e. x=2y/(oxidation state of T) and u=2v/(oxidation state of M), z, w and t are weight-%, wherein z is 70-80, w is 0-20 t is 10-30, and the sum of z, w and t is 100 weight-%, in particular V2O5—LiBO2 and V2O5—NiO—LiBO2.Type: ApplicationFiled: March 7, 2013Publication date: February 12, 2015Inventors: Semih Afyon, Reinhard Nesper
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Publication number: 20150044558Abstract: A negative electrode active material for a sodium-ion battery includes a negative electrode active material ingredient that is a compound having an aromatic ring structure and two or more COOX groups in which X is Li or Na, and which are bonded to ends of the aromatic ring structure; and a carbon material. The carbon material has an interlayer distance d002 equal to or smaller than 3.5 ? or a D/G ratio equal to or smaller than 0.80, the D/G ratio being obtained by Raman spectrometry.Type: ApplicationFiled: August 12, 2014Publication date: February 12, 2015Inventor: Hideki Nakayama
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Publication number: 20150037673Abstract: There is provided a positive-electrode material for a lithium secondary battery. The material comprises a lithium oxide compound or a complex oxide as reactive substance. The material also comprises at least one type of carbon material, and optionally a binder. A first type of carbon material is provided as a coating on the reactive substance particles surface. A second type of carbon material is carbon black. And a third type of carbon material is a fibrous carbon material provided as a mixture of at least two types of fibrous carbon material different in fiber diameter and/or fiber length. Also, there is provided a method for preparing the material as well as lithium secondary batteries comprising the material.Type: ApplicationFiled: October 4, 2012Publication date: February 5, 2015Inventors: Karim Zaghib, Abdelbast Guerfi, Pierre Hovington, Takehiko Sawai, Shinji Saito, Kazunori Urao
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Patent number: 8945501Abstract: A method for preparing a carbon nanotube, including: a) preparing an LPAN solution, stirring the LPAN solution at between 100 and 200° C. for between 100 and 200 hours to yield a cyclized LPAN solution; b) heating the cyclized LPAN solution at between 200 and 300° C. for between 1 and 10 hours to yield an OPAN; c) grinding, screening, and drying at room temperature the OPAN to yield a thermal oxidative precursor; d) calcining the thermal oxidative precursor at between 400 and 1000° C. for between 1 and 24 h in the presence of inert gas having a flow rate of between 10 and 500 mL/min to yield a carbonated precursor; and e) calcining the carbonated precursor at between 1000 and 1500° C. for between 1 and 10 hours in the presence of the inert gas having a flow rate of between 10 and 500 mL/min to yield a carbon nanotube material.Type: GrantFiled: September 30, 2013Date of Patent: February 3, 2015Inventors: Jianhong Liu, Jian Xu, Shuangquan Wu
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Publication number: 20150028264Abstract: A positive electrode for a battery includes a positive active material, a conductive agent, and a copolymer. The copolymer includes a constituent unit (a) represented by the following general formula (1) and a constituent unit (b) represented by the following general formula (2): (wherein R1, R2, R3, R5, R6, R7 and R9 are the same or different and denote a hydrogen atom, a methyl group or an ethyl group, R4 denotes a hydrocarbon group having 8 to 30 carbon atoms, R8 denotes a linear or branched alkylene group having 2 to 4 carbon atoms, X1 and X2 denote an oxygen atom or NH, and p denotes a number of 1 to 50.Type: ApplicationFiled: April 2, 2013Publication date: January 29, 2015Inventors: Kazuo Kuwahara, Shuichi Inaya, Yuichi Ito, Kohei Tsujita, Mitsuhiko Samata
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Publication number: 20150021315Abstract: The invention relates to a combined decoupling and heating system, in particular for installing ceramic tiling using the thin bed method, having at least one anchoring layer formed from a structure element for a filler compound that is to be introduced in the area of the upper side of the decoupling and heating system and that is ductile during processing and hardens thereafter. The anchoring layer is formed at least in part of mechanically highly stressable reinforcement fibers made of a material that itself is electrically conducting or that has become electrically conductive through coatings and/or additives, whereby the reinforcement fibers can be heated up by conducting electrical current thus forming the heating layer of an electrically operable area heating system.Type: ApplicationFiled: July 17, 2014Publication date: January 22, 2015Inventor: Peter Blanke
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Publication number: 20150014601Abstract: Method for the production of lithium metal phosphate, wherein a dry mixture containing a lithium compound, a metal compound, wherein the metal is selected from Fe, Mn and mixtures thereof, and a phosphate is provided, the dry mixture is converted to LiMPO4 and the LiMPO4 is wet ground by adding water and lithium polyacrylate and dried.Type: ApplicationFiled: November 28, 2012Publication date: January 15, 2015Applicant: BK GIULINI GMBHInventors: Thomas Staffel, Siegbert Weber, Marina Fleischhauer, Sebastian Metzger
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Publication number: 20150018182Abstract: The present disclosure discloses a charge roller (1) particularly but not exclusively for charging a photoconductor in a liquid electro-photograph (LEP) image-forming apparatus. The charge roller includes a cured composition of an epichlorohydrin/ethylene oxide/allyl glycidyl ether terpolymer, a lithium salt and carbon black.Type: ApplicationFiled: March 1, 2012Publication date: January 15, 2015Applicant: Hewlett-Packard Development Company, L.P.Inventors: Yi Feng, Stanley J. Kozmiski, Shao-Wei Li
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Publication number: 20150017322Abstract: The invention relates to an electrode material. Said material is characterized in that it contains, as positive electrode active material, at least one sulphate of iron in the +II oxidation state and of alkali metal corresponding to the formula (Na1?aLib)xFey(SO4), (I) in which the subscripts a, b, x, y and z are chosen so as to ensure the electroneutrality of the compound, with 0?a?1, 0?b?1, 1?x?3, 1?y?2, 1?z?3, and 2?(2z?x)/y<3 so that at least one portion of the iron is in the +II oxidation state, with the exclusion of the compound Li2Fe2(SO4)3. It is of use in particular as a positive electrode material in an alkali metal ion battery.Type: ApplicationFiled: February 27, 2013Publication date: January 15, 2015Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE PICARDIE JULES VERNEInventors: Marine Reynaud, Mohamed Ati, Jean-Noel Choland, Jean-Marie Tarascon
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Patent number: 8932482Abstract: A paste suitable for a negative plate of a lead-acid battery, the paste comprising lead oxide and carbon black, wherein the carbon black has the following properties: (a) a BET surface area between about 100 and about 2100 m2/g; and (b) an oil adsorption number (OAN) in the range of about 35 to about 360 cc/100 g, provided that the oil absorption number is less than the 0.14×the BET surface area+65.Type: GrantFiled: October 28, 2010Date of Patent: January 13, 2015Assignee: Cabot CorporationInventors: Paolina Atanassova, Berislav Blizanac, Miodrag Oljaca, Toivo T. Kodas, Geoffrey D. Moeser, Pavel A. Kossyrev, Ned J. Hardman
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Patent number: 8932481Abstract: 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: GrantFiled: August 30, 2011Date of Patent: January 13, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Kyu-sung Park, Young-min Choi
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Patent number: 8926868Abstract: A superconducting article comprises a substrate, a buffer layer overlying the substrate, and a high-temperature superconducting (HTS) layer overlying the buffer layer. The HTS layer includes a plurality of nanorods. A method of forming a superconducting article comprises providing a substrate, depositing a buffer layer overlying the substrate; forming a nanodot array overlying the buffer layer; depositing an array of nanorods nucleated on the nanodot array; and depositing a high-temperature superconducting (HTS) layer around the array of nanorods and overlying the buffer layer.Type: GrantFiled: July 27, 2010Date of Patent: January 6, 2015Assignees: University of Houston System, Superpower, Inc.Inventors: Venkat Selvamanickam, Goran Majkic, Maxim Martchevskii