With Metal Compound Patents (Class 252/506)
-
Publication number: 20130062574Abstract: Disclosed is a carbon nanotube powder, including a carbon nanotube averagely mixed with a dispersant, wherein the carbon nanotube and the dispersant have a weight ratio of 30:70 to 90:10. The carbon nanotube has a diameter of 10 nm to 100 nm, and a length/diameter ratio of 100:1 to 5000:1. The dispersant is an alternative copolymer, a block copolymer, or a random copolymer polymerized of a solvation segment (A) and a carbon affinity group (B). The carbon nanotube powder can be blended with a thermoplastic material to form a composite, wherein the carbon nanotube and the composite have a weight ratio of 0.5:100 to 50:100.Type: ApplicationFiled: January 12, 2012Publication date: March 14, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: An-En HSIAO, Shinn-Jen CHANG, Shu-Ya TSAI, Mei-Wen HSU
-
Publication number: 20130065118Abstract: Disclosed herein is a cathode active material for a secondary battery, which includes a combination of one or more selected from compounds represented by Formula 1, one or more selected from compounds represented by Formula 2, and one or more selected from compounds represented by Formula 3, (1-s-t)[Li(LiaMn(i-a-x-y)NixCoy)O2]*s[Li2CO3]*t[LiOH]??(1) Li(LibMn2-b)O4 ??(2) (1-u)LiFePO4*uC ??(3) In these formulae, 0<a<0.3; 0<x<0.8; 0<y<0.6; 0<s<0.05; 0<t<0.05; 0<b<0.3; and 0.01<u<0.1, wherein a, b, x and y denote mole ratios, and s, t and u denote weight ratios. The disclosed cathode active material has long lifespan and storage characteristics at room temperature and/or high temperature and excellent safety, and is effectively used to fabricate a non-aqueous electrolyte type high power lithium secondary battery having excellent rate properties and power characteristics.Type: ApplicationFiled: April 19, 2012Publication date: March 14, 2013Applicant: LG CHEM, LTD.Inventors: Sung kyun CHANG, Hong-Kyu PARK, Sunkyu KIM, Sinyoung PARK, Young Hwa JUNG, Geun-Chang CHUNG, Keun Wan AN, Soo Min PARK, Ji Eun LEE
-
Patent number: 8388867Abstract: A composition comprising: a metal oxide of a first metal ions and second metal ions; an electrically conductive material; and a binder material. The second metal ions have a higher oxidation state than the first metal ions. The presence of the second metal ion increases the number of metal cation vacancies. A method of: dissolving salts of a first metal ion and a second metal ion in water to form a solution; heating the solution to a temperature of about 80-90° C.; and adding a base to the solution to precipitate nanoparticles of a metal oxide of the first metal ion and the second metal ion.Type: GrantFiled: August 12, 2010Date of Patent: March 5, 2013Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Jeffrey W Long, Debra R Rolison, Benjamin P. Hahn
-
Publication number: 20130048078Abstract: The present invention relates to a carbon nanotube-invaded metal oxide composite film used as an N-type metal oxide conductive film of an organic solar cell, a manufacturing method thereof, and the organic solar cell with an improved photoelectric conversion efficiency and improved durability using the same, and more specifically, to a metal oxide-carbon nanotube composite film, a manufacturing method thereof, and an organic solar cell with an improved photoelectric conversion efficiency and improved durability using the same, characterized in that a single-wall carbon nanotube which has been surface-treated by a metal oxide is uniformly dispersed and is combined with the metal oxide.Type: ApplicationFiled: December 22, 2010Publication date: February 28, 2013Applicant: KOREA INSTITUTE OF MACHINERY AND MATERIALSInventors: Dong Chan Lim, Kyu Hwan Lee, Yong Soo Jeong, Won Hyun Shim, Sun Young Park, Sung-Woo Cho
-
Patent number: 8383011Abstract: A conductive ink having a glass frit, an organic medium a conductive species and one or more metallo-organic components which form metal oxides upon firing and reduce series resistance to a same or greater degree a ink that do not include metallo-organic components, is provided. Embodiments of conductive ink include metallo-organic components that include a bismuth metallo-organic component and glass frits comprising one or more of bismuth oxide, silica, boron oxide, tellurium dioxide, and combinations thereof. Embodiments of photovoltaic cells with an anti-reflection coating, gridlines formed from conductive ink incorporating one or more metallo-organic components, are also provided.Type: GrantFiled: January 30, 2008Date of Patent: February 26, 2013Assignee: BASF SEInventors: Imelda Castillo, Xuerong Gao
-
Publication number: 20130043437Abstract: Multicomponent nanoparticles materials and apparatuses and processes therefor are disclosed. In one aspect of the disclosure, separate particles generated from solution or suspension or by flame synthesis or flame spray pyrolysis, and the resultant particles are mixed in chamber prior to collection or deposition. In another aspect of the disclosure, nanoparticles are synthesized in stagnation or Bunsen flames and allowed to deposit by theirnophoresis on a moving substrate. These techniques are scalable allowing mass production of multicomponent nanoparticles materials and films. The foregoing techniques can be used to prepare composites and component devices comprising one ore more lithium based particles intimately mixed with carbon particles.Type: ApplicationFiled: September 15, 2012Publication date: February 21, 2013Inventors: Hai Wang, Denis Phares
-
Publication number: 20130037758Abstract: Provided is a method of preparing a complex of a transition metal oxide and carbon nanotube. The method includes (a) dispersing carbon nanotube powder in a solvent, (b) mixing the dispersion with a transition metal salt, and (c) synthesizing a complex of transition metal oxide and carbon nanotube by applying microwave to the mixed solution. The method may considerably reduce the time required to synthesize the complex. In the complex of transition metal oxide and carbon nanotube prepared by the method, the transition metal oxide may be stacked on the surface of the carbon nanotube in the size of a nanoparticle, and may enhance charge/discharge characteristics when being applied to a lithium secondary battery as an anode material.Type: ApplicationFiled: April 20, 2011Publication date: February 14, 2013Applicant: INDUSTRY ACADEMIC COOPERATION FOUNDATION, YONSEIInventors: Kwang Bum Kim, Hyun Kyung Kim, Ji Young Kim
-
Publication number: 20130040198Abstract: 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: ApplicationFiled: January 28, 2011Publication date: February 14, 2013Inventors: Sébastien Patoux, Sébastien Martinet, Sébastien Launois, Alain Gourgue, Alain Germeau
-
Publication number: 20130040439Abstract: Various embodiments relate to a method of modifying the electrical properties of carbon nanotubes. The method may include providing a substrate having carbon nanotubes deposited on a surface of the substrate, and depositing on the carbon nanotubes a coating layer comprising a mixture of nanoparticles, a matrix in which the nanoparticles are dissolved or stabilized, and an ionic liquid. A field-effect transistor including the modified carbon nanotubes is also provided.Type: ApplicationFiled: February 7, 2011Publication date: February 14, 2013Applicant: NANYANG TECHNOLOGICAL UNIVERSITYInventors: Jianwen Zhao, Lain-Jong Li, Peng Chen, Bee Eng Mary Chan
-
Publication number: 20130027844Abstract: The present invention relates to carbon nanofibers, and more particularly, to a method capable of preparing metal oxide-containing porous carbon nanofibers having a high specific surface area by changing the composition of a spinning solution, which is used in a process of preparing carbon nanofiber by electrospinning, and to metal oxide-containing porous carbon nanofibers prepared by the method, and carbon nanofiber products comprising the same.Type: ApplicationFiled: May 14, 2010Publication date: January 31, 2013Applicant: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITYInventors: Kap Seung Yang, Bo Hye Kim
-
Publication number: 20130025662Abstract: Techniques for reducing the resistivity of carbon nanotube and graphene materials are provided. In one aspect, a method of producing a doped carbon film having reduced resistivity is provided. The method includes the following steps. A carbon material selected from the group consisting of: a nanotube, graphene, fullerene and pentacene is provided. The carbon material and a dopant solution comprising an oxidized form of ruthenium bipyridyl are contacted, wherein the contacting is carried out under conditions sufficient to produce the doped carbon film having reduced resistivity.Type: ApplicationFiled: July 25, 2011Publication date: January 31, 2013Applicant: International Business Machines CorporationInventors: Ali Afzali-Ardakani, Ageeth Anke Bol, Bhupesh Chandra, George Stojan Tulevski
-
Patent number: 8361349Abstract: A nanoparticle coated with a semiconducting material and a method for making the same. In one embodiment, the method comprises making a semiconductor coated nanoparticle comprising a layer of at least one semiconducting material covering at least a portion of at least one surface of a nanoparticle, comprising: (A) dispersing the nanoparticle under suitable conditions to provide a dispersed nanoparticle; and (B) depositing at least one semiconducting material under suitable conditions onto at least one surface of the dispersed nanoparticle to produce the semiconductor coated nanoparticle. In other embodiments, the nanoparticle comprises a fullerene. Further embodiments include the semiconducting material comprising CdS or CdSe.Type: GrantFiled: February 18, 2010Date of Patent: January 29, 2013Assignees: William Marsh Rice University, Natcore Technology Inc.Inventors: Andrew R. Barron, Dennis J. Flood, John Ryan Loscutova
-
Publication number: 20130017442Abstract: A cathode active material composition includes a cathode active material, a water-based binder, and a transition metal oxide. A cathode is prepared using the cathode active material composition. A lithium battery includes the cathode. The lithium battery has improved high-rate characteristics and lifespan characteristics by preventing an increase in internal resistance due to the corrosion of an electrode base material.Type: ApplicationFiled: June 29, 2012Publication date: January 17, 2013Inventors: Jun-Kyu Cha, Seung-Hun Han, Hye-Sun Jeong, Ki-Jun Kim
-
Publication number: 20130017418Abstract: The present invention relates to electrode material for an electrical cell comprising as component (A) at least one ion- and electron-conductive metal chalcogenide, as component (B) carbon in a polymorph comprising at least 60% sp2-hybridized carbon atoms, as component (C) at least one sulfur-containing component selected from the group consisting of elemental sulfur, a composite produced from elemental sulfur and at least one polymer, a polymer comprising divalent di- or polysulfide bridges and mixtures thereof, and as component (D) optionally at least one binder. The invention further relates to a rechargeable electrical cell comprising at least one electrode which has been produced from or using the inventive electrode material, to the use of the rechargeable electrical cell and to the use of an ion- and electron-conductive metal chalcogenide for production of an inventive rechargeable electrical cell.Type: ApplicationFiled: July 9, 2012Publication date: January 17, 2013Applicant: BASF SEInventors: Arnd GARSUCH, Stefan Herzog, Lucas Montag, Andrea Krebs
-
Publication number: 20130015410Abstract: A lithium ion secondary battery has a high cycle retention rate, and has its battery capacity increased. A positive electrode active material is used which includes a crystal phase having a structure formed by collecting a plurality of crystallites 101, and powder particles containing amorphous phases 103a and 103b formed between the crystallites 101. The amorphous phases 103a and 103b contain one or more kinds of metal oxides selected from the group consisting of vanadium oxide, iron oxide, manganese oxide, nickel oxide and cobalt oxide. The crystal phase and the amorphous phase 103a and 103b are capable of intercalation and deintercalation of lithium ions.Type: ApplicationFiled: March 31, 2011Publication date: January 17, 2013Inventors: Yuji Hashiba, Kei Yoshimura, Shinichi Tachizono, Takashi Naito, Takuya Aoyagi, Tadashi Fujieda
-
Publication number: 20130018112Abstract: A cellulose aerogel comprises a plurality of cellulose nanoparticles. The cellulose nanoparticles preferably comprise at least 50% or 80% cellulose nanocrystals by weight of cellulose nanoparticles, and the cellulose nanoparticle aerogel preferably has a density of from 0.001 to 0.2 g/cm3 or from 0.2 to 1.59 g/cm3 The cellulose nanoparticle aerogel typically has an average pore diameter of less than 100 nmm and the cellulose nanoparticles may comprise anionic and/or cationic surface groups.Type: ApplicationFiled: September 14, 2010Publication date: January 17, 2013Applicant: University of NottinghamInventors: Wim Albert Wilfried Irene Thielemans, Rebecca Davies
-
Publication number: 20130011739Abstract: A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicants: UNIVERSITÉ DE MONTREAL, PHOSTECH LITHIUM INC., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: LAURENT GAUTHIER, Michel Gauthier, Donald Lavoie, Christophe Michot, Nathalie Ravet
-
Publication number: 20130011731Abstract: A cathode slurry composition, a cathode prepared from the same, and a lithium battery comprising the cathode. The cathode slurry composition may include an aqueous binder, a cathode active material, and a non-transition metal oxide.Type: ApplicationFiled: May 11, 2012Publication date: January 10, 2013Applicant: Samsung SDI Co., Ltd.Inventors: Hye-Sun JEONG, Jun-Kyu Cha, Seung-Hun Han, Ki-Jun Kim
-
Patent number: 8350001Abstract: A method for removing a carbonization catalyst from a graphene sheet, the method includes contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst.Type: GrantFiled: February 2, 2012Date of Patent: January 8, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jaeyoung Choi, Keun Soo Kim, Byung Hee Hong
-
Patent number: 8343386Abstract: An electrostatically dissipative adhesive in one embodiment includes a mixture comprising: an adhesive material; and electrically conductive particles intermixed with the adhesive material, the electrically conductive particles being present in an amount between 0 and about 10% by weight of a total weight of the mixture. An electrostatically dissipative adhesive in another embodiment includes a mixture comprising: an adhesive material; and electrically conductive particles intermixed with the adhesive material, the electrically conductive particles being present in an amount between 0 and about 10% by weight of a total weight of the mixture, wherein the mixture has at least 50% of a lap shear strength as measured in accordance with ISO 4587 after curing for 72 hours at 22° C. as the raw adhesive material has as measured in accordance with ISO 4587 after curing for 72 hours at 22° C.Type: GrantFiled: May 21, 2008Date of Patent: January 1, 2013Assignee: International Business Machines CorporationInventors: William Thomas Bandy, IV, Icko E. Tim Iben, Wayne Alan McKinley
-
Publication number: 20120328952Abstract: Described herein are improved composite anodes and lithium-ion batteries made therefrom. Further described are methods of making and using the improved anodes and batteries. In general, the anodes include a porous composite having a plurality of agglomerated nanocomposites. At least one of the plurality of agglomerated nanocomposites is formed from a dendritic particle, which is a three-dimensional, randomly-ordered assembly of nanoparticles of an electrically conducting material and a plurality of discrete non-porous nanoparticles of a non-carbon Group 4A element or mixture thereof disposed on a surface of the dendritic particle. At least one nanocomposite of the plurality of agglomerated nanocomposites has at least a portion of its dendritic particle in electrical communication with at least a portion of a dendritic particle of an adjacent nanocomposite in the plurality of agglomerated nanocomposites.Type: ApplicationFiled: March 27, 2012Publication date: December 27, 2012Inventors: Gleb Yushin, Oleksandr Magazynskyy, Patrick Dixon, Benjamin Hertzberg
-
Patent number: 8337723Abstract: Disclosed is an electroconductive material which contains at least a vanadium oxide and a phosphorus oxide, and has a crystalline structure composed of a crystalline phase and an amorphous phase, in which the crystalline phase contains a monoclinic vanadium-containing oxide, and a volume of the crystalline phase is larger than that of the amorphous phase. The electroconductive material has a reduced specific resistance and has improved functions as an electrode material, a solid-state electrolyte, or a sensor such as a thermistor.Type: GrantFiled: July 1, 2010Date of Patent: December 25, 2012Assignees: Hitachi Powdered Metals Co., Ltd., Hitachi, Ltd.Inventors: Yuji Hashiba, Shinichi Tachizono, Kei Yoshimura, Takashi Naito, Takuya Aoyagi
-
Patent number: 8333912Abstract: A process for making a composite material and the composite materials having thermoelectric properties.Type: GrantFiled: July 9, 2010Date of Patent: December 18, 2012Assignees: Corning Incorporated, Shanghai Institute of CeramicsInventors: Lidong Chen, Monika Backhaus-Ricoult, Lin He, Zhen Xiong, Xihong Chen, Xiangyang Huang
-
Publication number: 20120313053Abstract: Provided is a hydrogen-storing carbon material with improved hydrogen storage capacity. The hydrogen-storing carbon material has a total pore volume of 0.5 cm3/g or more, and a ratio of a total mesoporous volume to a total microporous volume per unit weight of 5 or more. In addition, the hydrogen-storing carbon material may have a nitrogen content of 0.5 wt % or more and less than 20 wt %. In addition, the hydrogen-storing carbon material may have a stable potential of ?1.28 V or more when a cathode current with respect to the hydrogen-storing carbon material is held at 1,000 mA/g in electrochemical measurement by chronopotentiometry involving using the hydrogen-storing carbon material in a working electrode in a three-electrode method.Type: ApplicationFiled: February 21, 2011Publication date: December 13, 2012Applicants: NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY, NISSHINBO HOLDINGS INC., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Chihiro Fujii, Yasuhiro Oshima, Takeaki Kishimoto, Rieko Kobayashi, Akiko Taira, Jun-ichi Ozaki, Haruo Kumagai
-
Publication number: 20120315530Abstract: An electrode mixture containing a lithium mixed metal oxide having a BET specific surface area of 2 to 30 m2/g, a water-soluble polymer having an acid functional group, water and an electrically conductive material. An electrode produced by applying the electrode mixture on an electrode current collector, and then drying the applied current collector. A lithium secondary battery comprising the electrode as a positive electrode.Type: ApplicationFiled: February 14, 2011Publication date: December 13, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Jun-ichi Kageura
-
Publication number: 20120312467Abstract: The invention relates to a process for producing electrically conductive bonds between solar cells, in which an adhesive comprising electrically conductive particles is first transferred from a carrier to the substrate by irradiating the carrier with a laser, the adhesive transferred to the substrate is partly dried and/or cured to form an adhesive layer, in a further step the adhesive is bonded to an electrical connection, and finally the adhesive layer is cured. The invention further relates to an adhesive for performing the process, comprising 20 to 98% by weight of electrically conductive particles, 0.01 to 60% by weight of an organic binder component used as a matrix material, based in each case on the solids content of the adhesive, 0.005 to 20% by weight of absorbent based on the weight of the conductive particles in the adhesive, and 0 to 50% by weight of a dispersant and 1 to 20% by weight of solvent, based in each case on the total mass of the undried and uncured adhesive.Type: ApplicationFiled: February 16, 2011Publication date: December 13, 2012Applicant: BASF SEInventors: Frank Kleine Jaeger, Juergen Kaczun, Stephan Hermes
-
Publication number: 20120305855Abstract: A positive electrode material for a secondary battery and a method for manufacturing the same are provided, in which manganese fluorophosphate containing lithium or sodium can be used as an electrode material. That is, a positive electrode material for a lithium/sodium battery is provided, in which intercalation/deintercalation of sodium/lithium ions is possible due to a short lithium diffusion distance caused by nanosizing of particles. Furthermore, a positive electrode material for a lithium/sodium battery is provided, which has electrochemical activity due to an increase in electrical conductivity by effective carbon coating.Type: ApplicationFiled: August 22, 2011Publication date: December 6, 2012Applicants: KOREA ELECTRONICS TECHNOLOGY INSTITUTE, HYUNDAI MOTOR COMPANYInventors: Dong Gun Kim, Sa Heum Kim, Young Jun Kim, Jun Ho Song, Woo Suk Cho, Jeom Soo Kim
-
Publication number: 20120295162Abstract: A compound of formula Lia+y(M1(1?t)Mot)2M2b(O1?xF2x)c wherein: M1 is selected from the group consisting in Ni, Mn, Co, Fe, V or a mixture thereof; M2 is selected from the group consisting in B, Al, Si, P, Ti, Mo; with 4?a?6; 0<b?1.8; 3.8?c?14; 0?x<1; ?0.5?y?0.5; 0?t?0.9; b/a<0.45; the coefficient c satisfying one of the following relationships: c=4+y/2+z+2t+1.5b if M2 is selected from B and Al; c=4+y/2+z+2t+2b if M2 is selected from Si, Ti and Mo; c=4+y/2+z+2t+2.5b if M2 is P; with z=0 if M1 is selected from Ni, Mn, Co, Fe and z=1 if M1 is V.Type: ApplicationFiled: March 7, 2012Publication date: November 22, 2012Applicants: UMICORE, SAFTInventors: Georges CAILLON, Stephane LEVASSEUR, Thierry HEZEQUE, Christian JORDY, Nina V. KOSOVA, Evgeniya T. DEVYATKINA
-
Patent number: 8313863Abstract: Novel process for the preparation of finely divided, nano-structured, olivine lithium metal phosphates (LiMPO4) (where metal M is iron, cobalt, manganese, nickel, vanadium, copper, titanium and mix of them) materials have been developed. This so called Polyol” method consists of heating of suited precursor materials in a multivalent, high-boiling point multivalent alcohol like glycols with the general formula HO—(—C2H4O—), —H where n=1-10 or HO—(—C3H6O—)n—H where n=1-10, or other polyols with the general formula HOCH2—(—C3H5OH—)n—H where n=1-10, like for example the tridecane-1,4,7,10,13-pentaol. A novel method for implementing the resulting materials as cathode materials for Li.-ion batteries is also developed.Type: GrantFiled: April 6, 2006Date of Patent: November 20, 2012Assignee: Dow Global Technologies LLCInventors: Ivan Exnar, Thierry Drezen
-
Publication number: 20120280184Abstract: The present invention relates to a composite material comprising a ceramic component, characterized in that it has a negative coefficient of thermal expansion, and carbon nanofilaments, to its obtainment process and to its uses as electrical conductor in microelectronics, precision optics, aeronautics and aerospace.Type: ApplicationFiled: December 14, 2010Publication date: November 8, 2012Applicant: Consejo Superior De Investigaciones Cientificas (CSIC)Inventors: Ramon Torrecillas San Millan, Olga Garcia Moreno, Maria Amparo Borrell Tomás, Adolfo Fernández Valdes
-
Publication number: 20120256121Abstract: The present invention relates to a process for preparing graphene solutions by means of alkali metal salts, to graphene solutions, to processes for preparing graphene alkali metal salts, to graphene alkali metal salts and to graphene composite materials and to processes for producing the graphene composite materials.Type: ApplicationFiled: November 8, 2010Publication date: October 11, 2012Applicant: BAYER TECHNOLOGY SERVICES GMBHInventors: Aurel Wolf, Giulio Lolli, Leslaw Mleczko, Oliver Felix-Karl Schluter
-
Publication number: 20120258367Abstract: The present invention relates to a nanocomposite material including graphene and a lithium-containing metal oxide on a surface of the graphene, a method for preparing the same, and an energy storage device including the same as an electrode material. According to the present invention, the nanocomposite material, in which the nano-sized lithium-containing metal oxide with high crystallinity is combined with the graphene with high specific surface area and high electrical conductivity, has an effect of achieving excellent high efficiency charge and discharge characteristics of energy storage devices such as an ultra-high capacity capacitor with high power and high energy density and a lithium secondary battery with high energy density.Type: ApplicationFiled: January 25, 2012Publication date: October 11, 2012Inventors: Hyun Chul Jung, Kwang Bum Kim, Bae Kyun Kim, Seong Min Bak
-
POSITIVE-ELECTRODE MATERIAL FOR A LITHIUM ION SECONDARY BATTERY AND MANUFACTURING METHOD OF THE SAME
Publication number: 20120258363Abstract: Provided is a positive electrode material for a safe, high capacity, long lifetime lithium ion secondary battery capable of large current charging and discharging. The positive electrode material contains between 5% by mass or more and 30% by mass or less of a carbon black composite formed by joining together fibrous carbon and carbon black wherein ash is 1.0% or less by mass in accordance with JIS K 1469 and the remainder includes olivine-type lithium iron phosphate, and volatile oxygen-containing functional groups which constitutes 1.0% or less by mass of the positive electrode material. The fibrous carbon is preferably a nanotube having a fiber diameter of 5 nm or more and 50 nm or less and a specific surface area between 50 m2/g or more and 400 m2/g or less.Type: ApplicationFiled: May 16, 2012Publication date: October 11, 2012Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Takashi KAWASAKI, Hiroshi SAKASHITA, Takehiko SAWAI, Shinji SAITO -
Publication number: 20120248383Abstract: A paste suitable for a negative plate of a lead-acid battery comprises at least (a) a lead-based active material and an expander mixture comprising (b) carbon, (c) barium sulfate and (d) a lignosulfonate, wherein at least part of at least two of said components (a) to (d) are present in the paste as composite particles.Type: ApplicationFiled: March 30, 2012Publication date: October 4, 2012Applicant: Cabot CorporationInventors: Paolina Atanassova, Yipeng Sun, Berislav Blizanac, Toivo T. Kodas, Mark J. Hampden-smith, Miodrag Oljaca
-
Publication number: 20120248382Abstract: This disclosure relates to polycarbonate compositions, methods, and articles of manufacture that at least meets certain electrical tracking resistance requirements. The compositions, methods, and articles of manufacture that meet these requirements contain at least a polycarbonate; a polysiloxane block co-polycarbonate; and a transition metal oxide, e.g. titanium dioxide.Type: ApplicationFiled: August 11, 2011Publication date: October 4, 2012Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Karin van de Wetering, Robert D. van de Grampel, Jaykisor Pal, Andries J. P. Van Zyl
-
Publication number: 20120244432Abstract: Provided are a mixed cathode active material including layered structure lithium manganese oxide expressed as Chemical Formula 1 and a second cathode active material 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 active material and the lithium secondary battery including the same may have improved safety and simultaneously, may be used in an operating device requiring the foregoing battery by widening a state of charge (SOC) range able to maintain power more than a required value by allowing the second cathode active material to complement low power in a low SOC range.Type: ApplicationFiled: May 9, 2012Publication date: September 27, 2012Inventors: Jung Hwan Park, Song Taek Oh, Geun Chang Chung, Min Hee Lee, Juichi Arai
-
Publication number: 20120244334Abstract: The present invention provides a complex comprising an aggregate of primary particles of an electrode-active transition metal compound and a fibrous carbon material, wherein said fibrous carbon material is present more densely in the surface region of the aggregate than in the inside of the aggregate.Type: ApplicationFiled: December 19, 2011Publication date: September 27, 2012Applicant: HANWHA CHEMICAL CORPORATIONInventors: Sei Ung Park, Dong Suek Lee, Ju Suk Ryu, Seong Jae Lim, Si Jin Oh
-
Publication number: 20120241706Abstract: Disclosed are a resistive random-access memory (ReRAM) based on resistive switching using a resistance-switchable conductive filler and a method for preparing the same. When a resistance-switchable conductive filler prepared by coating a conductive filler with a material whose resistance is changeable is mixed with a dielectric material, the dielectric material is given the resistive switching characteristics without losing its inherent properties. Therefore, various resistance-switchable materials having various properties can be prepared by mixing the resistance-switchable conductive filler with different dielectric materials. The resulting resistance-switchable material shows resistive switching characteristics comparable to those of the existing metal oxide film-based resistance-switchable materials. Accordingly, a ReRAM device having the inherent properties of a dielectric material can be prepared using the resistance-switchable conductive filler.Type: ApplicationFiled: June 15, 2011Publication date: September 27, 2012Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Sang-Soo LEE, Woojin JEON
-
Publication number: 20120237828Abstract: At least one embodiment of the present invention provides preparation methods and compositions for nanoarchitectured multi-component materials based on carbon-coated iron-molybdenum mixed oxide as the electrode material for energy storage devices. A sol-gel process containing soluble organics is a preferred method. The soluble organics could become a carbon coating for the mixed oxide after thermal decomposition. The existence of the carbon coating provides the mixed oxide with an advantage in cycling stability over the corresponding carbon-free mixed oxide. For the carbon-coated mixed oxide, a stable cycling stability at high charge/discharge rate (3A/g) can be obtained with Mo/Fe molar ratios ?1/3. The cycling stability and rate capability could be tuned by incorporating a structural additive such as Al2O3 and a conductive additive such as carbon nanotubes. The high rate performance of the multi-component material has been demonstrated in a full device with porous carbons as the positive electrode material.Type: ApplicationFiled: March 14, 2011Publication date: September 20, 2012Inventors: Bing TAN, Zhendong HU, Yong CHE
-
Publication number: 20120234581Abstract: A percolative conductive network includes bundles of carbon nanotubes and clusters of conductive particles arranged on a substrate. A plurality of the bundles include one or more points of contact with at least one adjacent bundle to form a carbon nanotube network, and the clusters of conductive particles separate the bundles in regions between the points of contact. At least a portion of the clusters form conductive pathways between adjacent bundles, and the carbon nanotube network and the conductive pathways define a percolative conductive network on the substrate.Type: ApplicationFiled: March 18, 2011Publication date: September 20, 2012Inventors: Ilia N. Ivanov, Matthew P. Garrett, Rosario A. Gerhardt, John M. Boyea
-
Publication number: 20120225352Abstract: Selenium or selenium-containing compounds may be used as electroactive materials in electrodes or electrochemical devices. The selenium or selenium-containing compound is mixed with a carbon material.Type: ApplicationFiled: February 24, 2012Publication date: September 6, 2012Inventors: Ali Abouimrane, Khalil Amine
-
Patent number: 8257616Abstract: 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: GrantFiled: October 6, 2010Date of Patent: September 4, 2012Assignees: ACEP Inc., Centre National de la Recherche Scientifique (“CNRS”), Universite de MontrealInventors: Nathalie Ravet, Simon Besner, Martin Simoneau, Alain Vallee, Michel Armand, Jean-Francois Magnan
-
Publication number: 20120217452Abstract: 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: ApplicationFiled: May 9, 2012Publication date: August 30, 2012Inventors: Jung Hwan PARK, Song Taek Oh, Geun Chang Chung, Su Hwan Kim, Juichi Arai
-
Publication number: 20120219862Abstract: The present invention provides a Li3V2(PO4)3-based positive active material for a lithium secondary battery, which has high discharge capacity and excellent storage performance, particularly high-temperature storage performance; and a lithium secondary battery made using the positive active material. The positive active material for a lithium secondary battery has general formula Li3V2(PO4)3-x(BO3)x (0<x?2?2). It is preferable that x be 2?7?x?2?3. Also provided are a positive electrode for a lithium secondary battery containing the positive active material; and a lithium secondary battery including the positive electrode.Type: ApplicationFiled: October 27, 2010Publication date: August 30, 2012Applicant: GS YUASA INTERNATIONAL LTD.Inventors: Yukiko Fujino, Yoshinobu Yasunaga, Toru Tabuchi, Tokuo Inamasu, Toshiyuki Nukuda
-
Publication number: 20120217451Abstract: Solid particles of a compound (Y) having a composition represented by AxMyP3Oz (wherein the element A is at least one member selected from the group consisting of Li and Na, the element M is at least one member selected from the group consisting of Fe, Mn, Co and Ni, the valency N of the element M satisfies +2<N?+4, 0<x<4, and 0<y<3) and a compound (Z) containing the element M are blended to achieve a composition of AaMbPOw (wherein 0<a<2 and 0.8<b<1.2), the blended product is mixed while it is pulverized, and heated in an inert gas or in a reducing gas to obtain particles of a phosphate compound (X) having a composition represented by AaMbPOw (wherein A derives from the compound (Y), and M derives from the compounds (Y) and (Z)), by a solid phase reaction.Type: ApplicationFiled: May 8, 2012Publication date: August 30, 2012Applicant: Asahi Glass Company, LimitedInventor: Yoshihisa Beppu
-
Publication number: 20120211703Abstract: 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: October 28, 2010Publication date: August 23, 2012Applicant: Cabot CorporationInventors: Paolina Atanassova, Berislav Blizanac, Miodrag Oljaca, Toivo T. Kodas, Geoffrey D. Moeser, Pavel A. Kossyrev, Ned J. Hardman
-
Publication number: 20120214072Abstract: 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: May 4, 2012Publication date: August 23, 2012Applicants: ACEP Inc., Universite De Montreal, CNRSInventors: Nathalie Ravet, Simon Besner, Martin Simoneau, Alain Vallee, Michel Armand, Jean-Francois Magnan
-
Patent number: 8246860Abstract: A carbon nanotube composite includes a free-standing carbon nanotube structure and an amount of reinforcements. The free-standing carbon nanotube structure includes an amount of carbon nanotubes. The reinforcements are located on the carbon nanotubes and combining the carbon nanotubes together.Type: GrantFiled: June 24, 2010Date of Patent: August 21, 2012Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Kai Liu, Rui-Feng Zhou, Ying-Hui Sun, Kai-Li Jiang, Shou-Shan Fan
-
Patent number: 8246861Abstract: A method for making a carbon nanotube composite includes providing a free-standing carbon nanotube structure and a reacting liquid with a metal compound dissolved therein, treating the carbon nanotube structure by applying the reacting liquid on the carbon nanotube structure, and heating the treated carbon nanotube structure in an oxide-free environment to decompose the metal compound.Type: GrantFiled: June 30, 2010Date of Patent: August 21, 2012Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Rui-Feng Zhou, Chui-Zhou Meng, Kai Liu, Kai-Li Jiang, Chang-Hong Liu, Shou-Shan Fan
-
Publication number: 20120205594Abstract: Process for producing electrode materials, wherein (a) (A) at least one iron compound in which Fe is present in the oxidation state +2 or +3, (B) at least one phosphorus compound, (C) at least one lithium compound, (D) at least one carbon source which can be a separate carbon source or at the same time at least one iron compound (A) or phosphorus compound (B) or lithium compound (C), (E) optionally at least one reducing agent, (F) optionally at least one further metal compound which has a metal other than iron, (G) optionally water or at least one organic solvent, are mixed with one another, (b) spray dried together by means of at least one apparatus which employs at least one spray nozzle for spraying and (c) thermally treated at temperatures in the range from 350 to 1200° C.Type: ApplicationFiled: February 14, 2012Publication date: August 16, 2012Applicant: BASF SEInventors: Robert BAYER, Bastian EWALD, Jordan Keith LAMPERT, Simon SCHRÖEDLE