Cobalt (co) Containing Patents (Class 423/594.5)
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Patent number: 9670111Abstract: Provided are a catalyst whereby isobutylene can be produced at high yield in a lower-temperature environment, and a method for producing isobutylene using the catalyst. The catalyst for producing isobutylene is an oxide including at least one element selected from molybdenum and tungsten, and at least one element selected from tantalum, niobium, and titanium.Type: GrantFiled: September 18, 2013Date of Patent: June 6, 2017Assignees: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, MITSUBISHI RAYON CO., LTD.Inventors: Wataru Ueda, Toru Murayama, Ken Ooyachi, Wataru Ninomiya, Toshiya Yasukawa
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Patent number: 9028710Abstract: The invention is directed to a pulverulent compound of the formula NiaM1bM2cOx(OH)y where M1 is at least one element selected from the group consisting of Fe, Co, Zn, Cu and mixtures thereof, M2 is at least one element selected from the group consisting of Mn, Al, Cr, B, Mg, Ca, Sr, Ba, Si and mixtures thereof, 0.3?a?0.83, 0.1?b?0.5, 0.01?c?0.5, 0.01?x?0.99 and 1.01?y?1.99, wherein the ratio of tapped density measured in accordance with ASTM B 527 to the D50 of the particle size distribution measured in accordance with ASTM B 822 is at least 0.2 g/cm3·?m. The invention is also directed to a method for the production of the pulverulent compound and the use as a precursor material for producing lithium compounds for use in lithium secondary batteries.Type: GrantFiled: July 23, 2008Date of Patent: May 12, 2015Assignee: H.C. Starck GmbHInventors: Matthias Jahn, Gerd Maikowske, Stefan Malcus, Juliane Meese-Marktscheffel, Armin Olbrich, Rüdiger Zertani
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Patent number: 8986644Abstract: A method for preparing crystalline cobalt nitrate. The method includes: 1) calcining a spent Co/SiO2 catalyst, cooling the calcined material to room temperature, and grinding it to yield a powder; 2) heating the powder in a fluidized bed reactor; 3) adding the heated powder into excess dilute nitric acid solution and filtering to obtain a cobalt nitrate solution; 4) adjusting the pH value of the cobalt nitrate solution to 1.5, adding a preheated oxalic acid solution, adjusting a pH value of the resulting solution to 1.5, immediately filtering the resulting solution to yield a precipitate of cobalt oxalate, washing the precipitate of cobalt oxalate to yield a neutral filtrate; 5) drying the precipitate and calcining to yield cobalt oxide; 6) dissolving the cobalt oxide in nitric acid to yield a second cobalt nitrate solution; and 7) evaporating the second cobalt nitrate solution to obtain crystalline cobalt nitrate.Type: GrantFiled: September 5, 2014Date of Patent: March 24, 2015Assignee: Wuhan Kaidi Engineering Technology Research Institute Co., Ltd.Inventors: Yiming Han, Qianqian Liu, Bo Lai, Li Xu, Dechen Song
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Publication number: 20150048280Abstract: A method for manufacturing a nanostructured metal oxide calcinate suitable for biosensor through a procedure of redox reaction is disclosed in this invention. The nanostructured metal oxide calcinate is free of impurities and produced with better electrocatalytic activity and better conductivity. Thus, an electrode of biosensor can be modified via the nanostructured metal oxide calcinate. The method for manufacturing the nanostructured metal oxide calcinate includes: disposing a first metal material and a second metal material into a reaction slot and making the first metal material and the second metal material dissolved within a solvent to form a mixture, wherein the pH value of the mixture ranges between 0 to 7, the mixture performs a redox reaction process for obtaining a metal oxide material; and eventually calcining the metal oxide material for obtaining a nanostructured metal oxide calcinate.Type: ApplicationFiled: December 11, 2013Publication date: February 19, 2015Applicant: NATIONAL SUN YAT-SEN UNIVERSITYInventors: Chun-Hu Chen, Cheng-Chi Kuo, Wen-Jie Lan
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Publication number: 20150034861Abstract: In at least one embodiment, a rechargeable battery is provided comprising an anode having an active material including MSb2O4 having a purity level of greater than 93 percent by weight, wherein M is a metal. The metal may have an oxidation state of 2+ and may include transition metals and/or alkali-earth metals. The anode active material may be synthesized using metal acetates or metal oxides. The synthesis may include heating at a first temperature to remove oxygen and water and reacting at a second temperature to form the MSb2O4 structure, which may be a spinel crystal structure.Type: ApplicationFiled: July 30, 2013Publication date: February 5, 2015Applicant: Ford Global Technologies, LLCInventor: Kevin James Rhodes
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Publication number: 20140272568Abstract: A compound MjXp which is particularly suitable for use in a battery prepared by the complexometric precursor formulation methodology wherein: Mj is at least one positive ion selected from the group consisting of alkali metals, alkaline earth metals and transition metals and j is an integer representing the moles of said positive ion per moles of said MjXp; and Xp, a negative anion or polyanion from Groups IIIA, IV A, VA, VIA and VIIA and may be one or more anion or polyanion and p is an integer representing the moles of said negative ion per moles of said MjXp.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: PERFECT LITHIUM CORP.Inventor: PERFECT LITHIUM CORP.
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Patent number: 8821766Abstract: The present invention aims at providing lithium manganate having a high output and an excellent high-temperature stability. The above aim can be achieved by lithium manganate particles having a primary particle diameter of not less than 1 ?m and an average particle diameter (D50) of kinetic particles of not less than 1 ?m and not more than 10 ?m, which are substantially in the form of single crystal particles and have a composition represented by the following chemical formula: Li1+xMn2-x-yYyO4 in which Y is at least one element selected from the group consisting of Al, Mg and Co; x and y satisfy 0.03?x?0.15 and 0.05?y?0.20, respectively, wherein the Y element is uniformly dispersed within the respective particles, and an intensity ratio of I(400)/I(111) thereof is not less than 33% and an intensity ratio of I(440)/I(111) thereof is not less than 16%.Type: GrantFiled: March 7, 2013Date of Patent: September 2, 2014Assignee: Toda Kogyo CorporationInventors: Masayuki Uegami, Akihisa Kajiyama, Kazutoshi Ishizaki, Hideaki Sadamura
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Patent number: 8809224Abstract: A catalyst for removing nitrogen protoxide from gas mixtures which contain it, comprising mixed oxides of cobalt, manganese and rare earth metals having composition expressed as percentage by weight of CoO, MnO and transition metal oxide in the lowest state of valence as follows: MnO 38-56%, CoO 22-30%, rare earth metal oxide 22-32%.Type: GrantFiled: September 6, 2011Date of Patent: August 19, 2014Assignee: Sud-Chemie Catalysts Italia S.R.L.Inventors: Alberto Cremona, Marvin Estenfelder, Edoardo Vogna
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Publication number: 20140227925Abstract: A novel metal polyoxide is a compound in which a plurality of oxygen elements are coupled to a transition metal element, and shows surface electrical resistance in addition to antibacterial and deodorizing activities. More specifically, the metal polyoxide contains manganese (III) molybdate and cobalt (III) molybdate having a novel structure. A preparation method thereof and a preparation method of a functional fiber or textile prepared using the same are provided.Type: ApplicationFiled: August 24, 2012Publication date: August 14, 2014Inventors: Seung Won Kook, Alexandru Botar
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Patent number: 8801974Abstract: A method for making a composite of cobalt oxide is disclosed. An aluminum nitrate solution is provided. Lithium cobalt oxide particles are introduced into the aluminum nitrate solution. The lithium cobalt oxide particles are mixed with the aluminum nitrate solution to form a mixture. A phosphate solution is added into the mixture to react with the aluminum nitrate solution and form an aluminum phosphate layer on surfaces of the lithium cobalt oxide particles. The lithium cobalt oxide particles with the aluminum phosphate layer formed on the surfaces thereof are heat treated to form a lithium cobalt oxide composite. The lithium cobalt oxide composite is electrochemical lithium-deintercalated at a voltage of Vx, wherein 4.5V<Vx?5V to form a cobalt oxide. The present disclosure also relates to a cobalt oxide and a composite of cobalt oxide.Type: GrantFiled: October 26, 2011Date of Patent: August 12, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Jian-Jun Li, Xiang-Ming He, Li Wang, Dan Wang, Xian-Kun Huang, Chang-Yin Jiang
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Publication number: 20140213441Abstract: The present invention provides an electrocatalytic material and a method for making an electrocatalytic material. There is also provided an electrocatalytic material comprising amorphous metal or mixed metal oxides. There is also provided methods of forming an electrocatalyst, comprising an amorphous metal oxide film.Type: ApplicationFiled: September 4, 2012Publication date: July 31, 2014Inventors: Simon Trudel, Curtis Berlinguette
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Patent number: 8765305Abstract: The present invention relates to a cathode active material for a lithium secondary battery and a process for preparing the same. In accordance with the present invention, the cathode active material having a high packing density was designed and synthesized and thus provided is a cathode active material for a lithium secondary battery exhibiting structural stability such as improved characteristics for charge/discharge, service life and high-rate and thermal stability, by modifying surface of the electrode active material with amphoteric or basic compounds capable of neutralizing acid produced around the cathode active material.Type: GrantFiled: November 17, 2004Date of Patent: July 1, 2014Assignee: Industry-University Cooperation Foundation, Hanyang UniversityInventors: Yang Kook Sun, Myoung Hun Lee, Yoon Jung Kang, Gil Ho Kim
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Patent number: 8663847Abstract: It is an object of the present invention to provide a positive electrode material having a large ratio of the discharge capacity around 4 V to the total discharge capacity including the discharge capacity at 4V or lower while making the discharge capacity around 4 V sufficient, for the purpose of providing a lithium secondary battery using a lithium transition metal phosphate compound excellent in thermal stability, utilizing the discharge potential around 4V (vs. Li/Li+) that is higher than the discharge potential of LiFePO4, and being advantageous with respect to the detection of the end of discharge state, and a lithium secondary battery using the same. The present invention uses a positive active material for a lithium secondary battery containing a lithium transition metal phosphate compound represented by LiMn1-x-yFexCoyPO4(0.1?x?0.2, 0<y?0.2).Type: GrantFiled: November 27, 2009Date of Patent: March 4, 2014Assignee: GS Yuasa International Ltd.Inventors: Yuta Kashiwa, Mariko Kohmoto, Toru Tabuchi, Tokuo Inamasu, Toshiyuki Nukuda
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Publication number: 20130336871Abstract: A cosmetic material that exhibits sufficient shielding effects against UV-A and UV-B, does not color a resultant cosmetic product even when blended in cosmetic materials, and will not result in a non-powdery finish when applied to the skin, and a method for producing such a cosmetic material are provided. It is a cosmetic material with at least part of InTaO4 substituted with at least one element of Sc, Ti, V, Cr, Mn, Co, Cu, Ga, Ge, As, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, Sn, Sb, Hf, W, Re, Os, Ir, Pt, Au, and Hg.Type: ApplicationFiled: November 9, 2011Publication date: December 19, 2013Applicant: IHI CORPORATIONInventors: Haruki Eguchi, Kenji Fuchigami
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Patent number: 8574540Abstract: A method for producing prefluxed metal oxide from a metal salt selected from nickel hydroxide, cobalt hydroxide, mixed nickel-cobalt hydroxide, nickel carbonate, cobalt carbonate, mixed nickel-cobalt carbonate and combinations thereof includes providing a mixture of at least one slag making oxide and a metal salt selected from the group consisting of nickel hydroxide, cobalt hydroxide, mixed nickel-cobalt hydroxide, nickel carbonate, cobalt carbonate, mixed nickel-cobalt carbonate and combinations thereof, blending with a binder, blending in a flux additive to form a slag-making mixture, forming the slag-making mixture into prefluxed agglomerates, and calcining the prefluxed agglomerates to produce a prefluxed metal oxide. An agglomerate is provided which includes a metal salt selected from nickel hydroxide, cobalt hydroxide, mixed nickel-cobalt hydroxide, nickel carbonate, cobalt carbonate, mixed nickel-cobalt carbonate and combinations thereof, a slag making oxide, and a flux additive.Type: GrantFiled: February 6, 2009Date of Patent: November 5, 2013Assignee: Vale S.A.Inventors: Geoffrey Edwin Osborne, Ahmed Vahed, Samuel Walton Marcuson
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Patent number: 8557449Abstract: An air cathode for a metal-air battery is disclosed which contains a catalyst chosen to make the metal air battery more easily rechargeable. This catalyst is based on cobalt phosphate, cobalt borate mixed metal cobalt phosphates, mixed metal cobalt borates, or mixed metal cobalt phosphate borates.Type: GrantFiled: June 24, 2011Date of Patent: October 15, 2013Inventors: Wilson Hago, Ivan Marc Lorkovic
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Patent number: 8545794Abstract: The invention relates to a powder compound of the formula NiaMbOx(OH)y, wherein M represents Co and at least one element selected from the group consisting of Fe, Zn, Al, Sr, Mg, or Ca and mixtures thereof, or M represents Co Mn and Fe, wherein 0.6?a<1.0, 0<b?0.4, 0<x?0.60, and 1.4?y<2, wherein the powder compound has a particle size distribution d50 value, measured in accordance with ASTM B 822, of <5 ?m, and wherein a ratio of tap density, measured in accordance with ASTM B 527, to the particle size distribution d50 value is at least 0.4 g/cm3. The invention also relates to a process for preparing the compound and its uses.Type: GrantFiled: September 2, 2008Date of Patent: October 1, 2013Assignee: H.C. Starck GmbHInventors: Matthias Jahn, Gerd Malkowske, Stefan Malcus, Juliane Meese-Marktscheffel, Armin Olbrich, Rüdiger Zertani
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Patent number: 8440113Abstract: The present invention aims at providing lithium manganate having a high output and an excellent high-temperature stability. The above aim can be achieved by lithium manganate particles having a primary particle diameter of not less than 1 ?m and an average particle diameter (D50) of kinetic particles of not less than 1 ?m and not more than 10 ?m, which are substantially in the form of single crystal particles and have a composition represented by the following chemical formula: Li1+xMn2?x?yYyO4 in which Y is at least one element selected from the group consisting of Al, Mg and Co; x and y satisfy 0.03?x?0.15 and 0.05?y?0.20, respectively, wherein the Y element is uniformly dispersed within the respective particles, and an intensity ratio of I(400)/I(111) thereof is not less than 33% and an intensity ratio of I(440)/I(111) thereof is not less than 16%.Type: GrantFiled: March 27, 2008Date of Patent: May 14, 2013Assignee: Toda Kogyo CorporationInventors: Masayuki Uegami, Akihisa Kajiyama, Kazutoshi Ishizaki, Hideaki Sadamura
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Patent number: 8383077Abstract: A method of stabilizing a metal oxide or lithium-metal-oxide electrode comprises contacting a surface of the electrode, prior to cell assembly, with an aqueous or a non-aqueous acid solution having a pH greater than 4 but less than 7 and containing a stabilizing salt, for a time and at a temperature sufficient to etch the surface of the electrode and introduce stabilizing anions and cations from the salt into said surface. The structure of the bulk of the electrode remains unchanged during the acid treatment. The stabilizing salt comprises fluoride and at least one cationic material selected from the group consisting of ammonium, phosphorus, titanium, silicon, zirconium, aluminum, and boron.Type: GrantFiled: February 14, 2012Date of Patent: February 26, 2013Assignee: UChicago Argonne, LLCInventors: Michael M. Thackeray, Sun-Ho Kang, Christopher S. Johnson
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Patent number: 8349286Abstract: A lithium-transition metal complex compound has an nth order hierarchical structure in which n type structures represented by at least one unit of ath order units in a range of 1×10?(a+5) m to 10×10?(a+5) m exist in a complex form, wherein n is a natural number that is 2 or greater, and a is a natural number in a range of 1 to 5. The lithium-transition metal complex may be prepared by heat-treating a mixture including a lithium source, a transition metal source, and solvent in contact with a natural material having a hierarchical structure. A lithium battery includes an electrode including the lithium-transition metal complex compound having the nth order hierarchical structure. The lithium battery can have improved rapid charging characteristics, high power characteristics, and cycle characteristics.Type: GrantFiled: March 6, 2009Date of Patent: January 8, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Yoonsok Kang, Joungwon Park, Guesung Kim, Jaegu Yoon
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Publication number: 20120312344Abstract: The present invention relates to the use of Layered Double Hydroxides (LDH) for synthesizing cobaltites, in particular Ca3Co4O9. The invention also relates to a thermoelectric material comprising Ca3Co4O9 as obtained from a LDH precursor.Type: ApplicationFiled: February 22, 2011Publication date: December 13, 2012Inventor: Fabian Delorme
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Patent number: 8236277Abstract: A process comprises (a) combining (1) at least one base and (2) at least one metal carboxylate salt comprising (i) a metal cation selected from metal cations that form amphoteric metal oxides or oxyhydroxides and (ii) a carboxylate anion comprising from one to four alkyleneoxy moieties, or metal carboxylate salt precursors comprising (i) at least one metal salt comprising the metal cation and a non-interfering anion and (ii) at least one carboxylic acid comprising from one to four alkyleneoxy moieties, at least one salt of the carboxylic acid and a non-interfering, non-metal cation, or a mixture thereof; and (b) allowing the base and the metal carboxylate salt or metal carboxylate salt precursors to react.Type: GrantFiled: December 18, 2007Date of Patent: August 7, 2012Assignee: 3M Innovative Properties CompanyInventor: Timothy D. Dunbar
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Patent number: 8216544Abstract: A ZnO varistor powder can be obtained with high operating voltage and excellent current-voltage nonlinear resistance characteristics. In the ZnO varistor powder, the main ingredient is zinc oxide (ZnO); and at least bismuth (Bi), cobalt (Co), manganese (Mn), antimony (Sb), nickel (Ni), and aluminum (Al), calculated as Bi2O3, CO2O3, MnO, Sb2O3, NiO, and Al3+, are contained as accessory ingredients in amounts of 0.3 to 1.5 mol % Bi2O3, 0.3 to 2.0 mol % Co2O3, 0.3 to 3 mol % MnO, 0.5 to 4 mol % Sb2O3, 0.5 to 4 mol % NiO, and 0.0005 to 0.02 mol % Al3+. ZnO content is greater than or equal to 90 mol %; the bulk density is greater than or equal to 2.5 g/cc; the powder is a spherical powder in which the 50% particle diameter in the particle size distribution is 20 ?m to 120 ?m.Type: GrantFiled: March 5, 2008Date of Patent: July 10, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Hideyasu Ando, Yasunori Kasuga
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Patent number: 8192595Abstract: A transition metal/carbon nanotube composite includes a carbon nanotube and a transition metal oxide coating layer disposed on the carbon nanotube. The transition metal oxide coating layer includes a nickel-cobalt oxide.Type: GrantFiled: December 2, 2009Date of Patent: June 5, 2012Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Ho-jung Yang, Hyo-rang Kang, Kwang-bum Kim, Jin-go Kim
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Patent number: 8137844Abstract: A method for manufacturing a cathode active material for a lithium rechargeable battery, including: selecting a first metal compound from a group consisting of a halide, a phosphate, a hydrogen phosphate and a sulfate of Mg or Al; selecting a second metal compound from a group consisting of an oxide, a hydroxide and a carbonate of Mg or Al; combining the first metal compound and the second metal compound to obtain a metal compound, the metal compound containing either Mg or Al atoms; mixing a lithium compound, a transition metal compound and the metal compound to obtain a mixture; and sintering the mixture.Type: GrantFiled: November 16, 2007Date of Patent: March 20, 2012Assignee: Nippon Chemical Industrial Co., Ltd.Inventors: Hidekazu Awano, Minoru Fukuchi, Yuuki Anbe
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Patent number: 8114307Abstract: The present invention provides a piezoelectric element and having a piezoelectric body and a pair of electrodes being contact with the piezoelectric body, wherein the piezoelectric body consists of an ABO3 perovskite oxide in which an A-site atom consists of Bi and a B-site atom is composed of an atom of at least two types of elements.Type: GrantFiled: September 4, 2007Date of Patent: February 14, 2012Assignee: Canon Kabushiki KaishaInventors: Katsumi Aoki, Kenichi Takeda, Tetsuro Fukui, Hiroshi Funakubo, Shintaro Yasui, Ken Nishida
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Patent number: 8088349Abstract: Disclosed is a clean method for preparing layered double hydroxides (LDHs), in which hydroxides of different metals are used as starting materials for production of LDHs by atom-economical reactions. The atom efficiency of the reaction is 100% in each case because all the atoms of the reactants are converted into the target product since only M2+(OH)2, M3+(OH)3, and CO2 or HnAn? are used, without any NaOH or other materials. Since there is no by-product, filtration or washing process is unnecessary. The consequent reduction in water consumption is also beneficial to the environment.Type: GrantFiled: September 11, 2007Date of Patent: January 3, 2012Assignee: Beijing University of Chemical TechnologyInventors: Xue Duan, Dianqing Li, Zhi Lv, Yanjun Lin, Xiangyu Xu
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Publication number: 20110315936Abstract: A sputtering target including an oxide sintered body, the oxide sintered body containing indium (In) and at least one element selected from gadolinium (Gd), dysprosium (Dy), holmium (Ho), erbium (Er) and ytterbium (Yb), and the oxide sintered body substantially being of a bixbyite structure.Type: ApplicationFiled: February 28, 2008Publication date: December 29, 2011Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Kazuyoshi Inoue, Koki Yano, Masashi Kasami
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Patent number: 8066969Abstract: This invention relates, in general, to a method of producing magnetic oxide nanoparticles or metal oxide nanoparticles and, more particularly, to a method of producing magnetic or metal oxide nanoparticles, which comprises (1) adding a magnetic or metal precursor to a surfactant or a solvent containing the surfactant to produce a mixed solution, (2) heating the mixed solution to 50-6001 C to decompose the magnetic or metal precursor by heating so as to form the magnetic or metal oxide nanoparticles, and (3) separating the magnetic or metal oxide nanoparticles. Since the method is achieved through a simple process without using an oxidizing agent or a reducing agent, it is possible to simply mass-produce uniform magnetic or metal oxide nanoparticles having desired sizes compared to the conventional method.Type: GrantFiled: November 26, 2004Date of Patent: November 29, 2011Assignee: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Jin-Woo Cheon, Jung-Wook Seo, Jae-Hyun Lee
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Patent number: 8062620Abstract: The present invention relates to a process for the conversion of cobalt(II)hydroxide into cobalt(III)oxidehydroxide (CoOOH) by reaction of the cobalt(II)hydroxide with oxygen in the presence of certain metal compounds. The invention further relates to the use of cobalt(III)oxidehydroxide thus prepared in the preparation of catalysts or catalysts precursors, especially catalysts or catalyst precursors for the conversion of synthesis gas into normally liquid and normally solid hydrocarbons and to normally liquid or solid hydrocarbons, optionally after additional hydrotreatment, obtained in such a conversion process.Type: GrantFiled: November 28, 2005Date of Patent: November 22, 2011Assignee: Shell Oil CompanyInventors: Ronald Jan Dogterom, Heiko Oosterbeek, Marinus Johannes Reynhout
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Patent number: 8048398Abstract: Process for preparing a mixed metal oxide powder, in which oxidizable starting materials are evaporated and oxidized, the reaction mixture is cooled after the reaction and the pulverulent solids are removed from gaseous substances, wherein as starting materials, at least one pulverulent metal and at least one metal compound, the metal and the metal component of the metal compound being different and the proportion of metal being at least 80% by weight based on the sum of metal and metal component from metal compound, together with one or more combustion gases, are fed to an evaporation zone of a reactor, where metal and metal compound are evaporated completely under nonoxidizing conditions, subsequently, the mixture flowing out of the evaporation zone is reacted in the oxidation zone of this reactor with a stream of a supplied oxygen-containing gas whose oxygen content is at least sufficient to oxidize the starting materials and combustion gases completely.Type: GrantFiled: May 9, 2007Date of Patent: November 1, 2011Assignee: Evonik Degussa GmbHInventors: Stipan Katusic, Guido Zimmermann, Michael Kraemer, Peter Kress, Horst Miess
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Patent number: 7964175Abstract: A procedure for obtaining mixed multimetallic oxides derived from hydrotalcite type compounds, characterized in that the laminar metallic hydroxides obtained are constituted by three or four metallic cations, forming part of the sheets of the hydrotalcite type material represented by the formula: [M(II)1?x?y?zM(II)?xM(III)yM(III)?z(OH)2](An?y+z/n).mH2O. by a process comprising: (1) preparing an aqueous or organic solution containing three or more cations; (2) preparing an alkaline solution; (3) slowly combining solutions (1) and (2) to cause the co-precipitation of the cations in the form of hydroxides; (4) washing the precipitate containing the hydrotalcites with water, until removal of the non-precipitated ions; (5) drying; and (6) calcining the hydrotalcites.Type: GrantFiled: January 6, 2006Date of Patent: June 21, 2011Assignee: Instituto Mexico del PetroleoInventors: Jaime Sánchez Valente, Esteban López Salinas, Manuel Sánchez Cantú, Francisco Hernández Beltrán
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Patent number: 7931746Abstract: The present invention is directed to pigment compositions with the formula BiwMnxCoyCuzO40, wherein w is between 7 and 9, x is between 3 and 13, y is between 2 and 13, z is between 0.5 and 7 and the sum of w, x, y and z is 26. The invention also is directed to thick film black pigment compositions, conductive single layer thick film compositions, black electrodes made from such black conductive compositions and methods of forming such electrodes, and to the uses of such compositions, electrodes, and methods in flat panel display applications, including alternating-current plasma display panel devices (AC PDP).Type: GrantFiled: May 20, 2010Date of Patent: April 26, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Jerome David Smith, Pedro A. Jimenez, Tony Jackson, Veda L. Evans
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Publication number: 20110091371Abstract: Soluble homo and heterometallic coordination polymers based on the oxalate ligand and method for obtaining spinels from them. Homo or heterometallic coordination polymers comprising at least one oxalate ligand are characterised by comprising also at least one organic molecule that can stabilise extended structures of metal complexes by the formation of supramolecular interactions so that this polymer is substantially water-soluble and insoluble in organic solvents.Type: ApplicationFiled: April 24, 2009Publication date: April 21, 2011Applicant: Universitat De Valencia, Estudi GeneralInventors: Eugenio Coronado Miralles, Carlos Marti Gastaldo, Jose Ramon Galan Mascaros
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Patent number: 7923615Abstract: The present invention relates to a catalyst system for the selective conversion of hydrocarbons into multi-walled carbon nanotubes and hydrogen comprising a compound of the formula: (Ni,Co)FeyOz(Al2O3)w wherein ‘y’ represents the molar fraction of Fe relative to Co and Ni and wherein 0.11?y?9.0, 1.12?z?14.5, and 1.5?w?64.Type: GrantFiled: August 25, 2006Date of Patent: April 12, 2011Assignee: Nanocyl S.A.Inventors: Ricardo Prada Silvy, Christophe Pirlot, Benedicte Culot
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Patent number: 7897135Abstract: The present invention is generally directed to a novel, economic synthesis of oxide ceramic composites. Methods of the present invention, referred to as carbon combustion synthesis of oxides (CCSO), are a modification of self-propagating high-temperature synthesis (SHS) methods in which the heat needed for the synthesis is generated by combustion of carbon in oxygen rather than that of a pure metal. This enables a more economic production of the ceramic material and minimizes the presence of intermediate metal oxides in the product. The reactant mixture generally comprises at least one oxide precursor (e.g., a metal or non metal oxide, or super oxide, or nitride, or carbonate, or chloride, or oxalate, or halides) as a reactant, but no pure metal. Pure carbon in the form of graphite or soot is added to the reactant mixture to generate the desired heat (upon ignition). The mixture is placed in a reactor and exposed to gaseous oxygen.Type: GrantFiled: September 21, 2005Date of Patent: March 1, 2011Assignee: University of HoustonInventors: Karen S. Martirosyan, Dan Luss
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Patent number: 7897136Abstract: A method is described for the manufacture of hydrotalcites by using at least one compound of a bivalent metal (Component A) and at least one compound of a trivalent metal (Component B), wherein at least one of these components is not used in the form of a solution, characterized in that a) at least one of the Components A and/or B which is not used in the form of a solution, shortly before or during mixing of the components, and/or b) the mixture containing the Components A and B is subjected to intensive grinding until an average particle size (D50) in the range of approx. 0.1 to 5 ?m is obtained, and optionally, after aging treatment or hydrothermal treatment, the resulting hydrotalcite product is separated, dried, and optionally calcinated.Type: GrantFiled: April 30, 2007Date of Patent: March 1, 2011Assignee: Sud-Chemie AGInventors: Max Eisgruber, Jürgen Ladebeck, Jürgen Koy, Hubert Schiessling, Wolfgang Buckl, Herrmann Ebert
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Patent number: 7879265Abstract: It is an object of the present invention to provide an active material for lithium ion battery capable of producing a lithium ion battery having an excellent high rate charge and discharge performance and a lithium ion battery having an excellent high rate charge and discharge performance. The present invention provides an active material for lithium ion battery represented by a composition formula: Li[Li(1-x)/3AlxTi(5-2x)/3]O4 (??x<1) lithium titanate is substituted with Al, and a lithium ion battery using this active material as a negative electrode active material.Type: GrantFiled: March 22, 2006Date of Patent: February 1, 2011Assignee: GS Yuasa CorporationInventors: Daisuke Endo, Tokuo Inamasu, Toshiyuki Nukuda, Yoshihiro Katayama
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Publication number: 20110002831Abstract: A sol-gel process for preparing a mixture of metal-oxide-metal compounds wherein at least one metal oxide precursor is subjected to a hydrolysis treatment to obtain one or more corresponding metal oxide hydroxides, the metal oxide hydroxides so obtained are subjected to a condensation treatment to form the metal-oxide-metal compounds, which process is carried out in the presence of an encapsulated catalyst, whereby the catalytically active species is released from the encapsulating unit by exposure to an external stimulus, and wherein the catalytically active species released after exposure to such external stimulus is capable of catalyzing the condensation of the metal-hydroxide groups that are present in the metal oxide hydroxides so obtained.Type: ApplicationFiled: December 15, 2008Publication date: January 6, 2011Inventors: Nanning Joerg Arfsten, Pascal Jozef Paul Buskens, Jens Christoph Thies
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Publication number: 20100285371Abstract: Disclosed is a separator comprising inorganic particle or aggregates thereof having a unique spectrum or color pattern according to a predetermined rule. Also, disclosed are an electrochemical device comprising the above separator and a method for identifying the origin or kind of the separator itself or the electrochemical device comprising the same by using the above separator. Further, disclosed is a method for manufacturing the aforementioned separator, the method comprising a step of forming a specific pattern by coating inorganic particles having a unique spectrum or color pattern on at least one area selected from the group consisting of a surface of a porous substrate and a porous part of the substrate.Type: ApplicationFiled: September 21, 2007Publication date: November 11, 2010Applicant: LG CHEM, LTD.Inventors: Sang-Young Lee, Dae-Jong Seo, Dong-Myung Kim, Seok-Koo Kim, Hyun-Min Jang
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Publication number: 20100266485Abstract: A process comprises (a) combining (1) at least one base and (2) at least one metal carboxylate salt comprising (i) a metal cation selected from metal cations that form amphoteric metal oxides or oxyhydroxides and (ii) a lactate or thiolactate anion, or metal carboxylate salt precursors comprising (i) at least one metal salt comprising the metal cation and a non-interfering anion and (ii) lactic or thiolactic acid, a lactate or thiolactate salt of a non-interfering, non-metal cation, or a mixture thereof; and (b) allowing the base and the metal carboxylate salt or metal carboxylate salt precursors to react.Type: ApplicationFiled: December 16, 2008Publication date: October 21, 2010Inventor: Timothy D. Dunbar
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Patent number: 7811545Abstract: The present invention is directed to a process for making nanoparticles of metals, metal alloys, metal oxides and multi-metallic oxides, which comprises the steps of reacting a metal salt dissolved in water with an alkali metal salt of C4-25 carboxylic acid dissolved in a first solvent selected from the group consisting of C5-10 aliphatic hydrocarbon and C6-10 aromatic hydrocarbon to form a metal carboxylate complex; and heating the metal carboxylate complex dissolved in a second solvent selected from the group consisting of C6-25 aromatic, C6-25 ether, C6-25 aliphatic hydrocarbon and C6-25 amine to produce the nanoparticles.Type: GrantFiled: November 23, 2005Date of Patent: October 12, 2010Assignee: Seoul National University Industry FoundationInventors: Taeg-Hwan Hyeon, Jong-Nam Park
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Publication number: 20100254875Abstract: A material comprising a plurality of nanoparticles. Each of the plurality of nanoparticles includes at least one of a metal phosphate, a metal silicate, a metal oxide, a metal borate, a metal aluminate, and combinations thereof. The plurality of nanoparticles is substantially monodisperse. Also disclosed is a method of making a plurality of substantially monodisperse nanoparticles. The method includes providing a slurry of at least one metal precursor, maintaining the pH of the slurry at a predetermined value, mechanically milling the slurry, drying the slurry to form a powder; and calcining the powder at a predetermined temperature to form the plurality of nanoparticles.Type: ApplicationFiled: October 5, 2006Publication date: October 7, 2010Inventors: Kalaga Murali Krishna, Sergio Paulo Martins Loureiro, Mohan Manoharan, Geetha Karavoor, Shweta Saraswat
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Patent number: 7803348Abstract: Oxygen is reduced in the presence of a catalyst at the cathode of an alkaline-electrolyte fuel cell. Catalysts of the formula Sr3?xA1+xCo4?yByO10.5?z wherein ?0.6?x?1.0; 0?y?3; and ?1.5?z?0.5; wherein A represents Eu, Gd, Tb, Dy, Ho, or Y; and wherein B represents Fe, Ga, Cu, Ni, Mn, and Cr, demonstrate high catalytic activity and high chemical stability when used as the oxygen-reduction catalyst in alkaline fuel cells.Type: GrantFiled: February 10, 2006Date of Patent: September 28, 2010Assignee: Horizon Fuel Cells, LLCInventors: Evgeny V. Antipov, Galina A. Tsirlina, Sergey Y. Istomin, Oleg A. Drozhzhin, Eduard E. Levin
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Patent number: 7759007Abstract: A lithium ion secondary battery is provided. The battery includes a positive electrode having at least a cathode active material and a binder, a negative electrode, an electrolyte, and a separator which are arranged between the positive electrode and the negative electrode, and in which an open circuit voltage per unit cell in a full charging state lies within (4.25V?voltage?6.00V). The cathode active material includes either a lithium-cobalt composite oxide expressed by a general formula: LiaCo1-xMexO2-b (Me denotes metal elements of at least one, two or more kinds selected from V, Cu, Zr, Zn, Mg, Al, and Fe; 0.9?a?1.1; 0?x=0.3; and ?0.1?b?0.1) or a lithium-cobalt-nickel-manganese oxide expressed by a general formula: LiaNi1-x-y-zCoxMnyMezO2-b (0.9?a?1.1; 0<x<0.4; 0<y<0.4; 0<z<0.3; and ?0.1?b?0.1). The binder includes a polyacrylonitrile resin.Type: GrantFiled: December 19, 2006Date of Patent: July 20, 2010Assignee: Sony CorporationInventors: Takashi Tokunaga, Yoshiaki Obana, Hiroyuki Akashi
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Patent number: 7749321Abstract: The present invention is directed to pigment compositions, thick film black pigment compositions, conductive single layer thick film compositions, black electrodes made from such black conductive compositions and methods of forming such electrodes, and to the uses of such compositions, electrodes, and methods in flat panel display applications, including alternating-current plasma display panel devices (AC PDP).Type: GrantFiled: June 28, 2007Date of Patent: July 6, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Jerome D. Smith, Pedro A. Jimenez, Tony Jackson
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Publication number: 20100135937Abstract: Nanocrystalline forms of metal oxides, including binary metal oxide, perovskite type metal oxides, and complex metal oxides, including doped metal oxides, are provided. Methods of preparation of the nanocrystals are also provided. The nanocrystals, including uncapped and uncoated metal oxide nanocrystals, can be dispersed in a liquid to provide dispersions that are stable and do not precipitate over a period of time ranging from hours to months. Methods of preparation of the dispersions, and methods of use of the dispersions in forming films, are likewise provided. The films can include an organic, inorganic, or mixed organic/inorganic matrix. The films can be substantially free of all organic materials. The films can be used as coatings, or can be used as dielectric layers in a variety of electronics applications, for example as a dielectric material for an ultracapacitor, which can include a mesoporous material. Or the films can be used as a high-K dielectric in organic field-effect transistors.Type: ApplicationFiled: September 24, 2009Publication date: June 3, 2010Applicant: The Trustees of Columbia University in the City of New YorkInventors: Stephen O'Brien, Limin Huang, Zhuoying Chen, Ioannis Kymissis, Zhang Jia
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Patent number: 7691352Abstract: A new set of additives to be sued in the preparation of inorganic materials; especially of perovskite nature is proposed. The chemical compositions of the perovskites prepared in the presence of the mentioned additives are found to be more homogenous, leading to better catalytic behavior, including higher selectivity and yields as compared to catalysts of identical formulations prepared through the conventional method of using EDTA/citrate (or other organic additive) method.Type: GrantFiled: April 2, 2009Date of Patent: April 6, 2010Assignee: Research Institute of Petroleum Industry (RIPI)Inventors: Khodadad Nazari, Zahra Taheri, Naser Seyed Matin, Reza Ahmadi, Saeed Zarrinpashneh, Morteza Rezapour
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Patent number: 7682595Abstract: There is provided a lithium secondary battery having a high capacity and excellent high-rate discharge characteristic and charge/discharge cycle characteristic. The lithium secondary battery comprises a negative electrode, a positive electrode and an ionic conductor, wherein the positive electrode comprises lithium metal composite oxide particles; the lithium metal composite oxide particles comprise a plurality of secondary particles in an elongated shape each comprised of a plurality of primary particles with an average particle size of 0.1 to 1 ?m so aggregated as to form a void therebetween; and the secondary particle is columnar or planar and has an average size in a long length direction of 5 to 15 ?m.Type: GrantFiled: November 5, 2008Date of Patent: March 23, 2010Assignee: Canon Kabushiki KaishaInventors: Katsuhiko Inoue, Soichiro Kawakami
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Positive electrode active material and non-aqueous electrolyte secondary battery containing the same
Patent number: 7682747Abstract: The present invention provides a high-capacity and low-cost non-aqueous electrolyte secondary battery, comprising: a negative electrode containing, as a negative electrode active material, a substance capable of absorbing/desorbing lithium ions and/or metal lithium; a separator; a positive electrode; and an electrolyte, wherein the positive electrode active material contained in the positive electrode is composed of crystalline particles of an oxide containing two kinds of transition metal elements, the crystalline particles having a layered crystal structure, and oxygen atoms constituting the oxide forming a cubic closest packing structure.Type: GrantFiled: October 25, 2007Date of Patent: March 23, 2010Assignee: Panasonic CorporationInventors: Tsutomu Ohzuku, Hiroshi Yoshizawa, Masatoshi Nagayama