Plural Metal Or Metal And Ammonium Containing Patents (Class 423/306)
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Patent number: 7887954Abstract: A composition for use in an electrochemical redox reaction may comprise a first material represented by MyXO4 or AxMyXO4, where each of A, M, and X independently represents at least one element, O represents oxygen, and each of x and y represent a number, and second material selected from SiC, BN, carbon tube material, carbon fiber material, and an oxide of at least one element. When the first material is represented by MyXO4, it may be capable of being intercalated with ionic A to form AxMyXO4. At least a portion of the second material may be at least partially distributed within the first material and/or may at least partially coat the first material. An electrode comprising such a composition is also described, as is an electrochemical cell comprising such an electrode. A process of preparing a composition for use in an electrochemical redox reaction is also described.Type: GrantFiled: November 14, 2007Date of Patent: February 15, 2011Assignee: Advanced Lithium Electrochemistry Co., Ltd.Inventors: Wen-Ren Liu, Chih-Wei Yang, Ben-Jie Liaw
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Publication number: 20110017947Abstract: The invention describes a process for producing a compound of the formula LiMPO.sub.4, in which M represents at least one metal from the first transition series, comprising the following steps: a) production of a precursor mixture, containing at least one Li.sup.+ source, at least one M.sup.2+ source and at least one PO.sub.4.sup.3? source, in order to form a precipitate and thereby to produce a precursor suspension; b) dispersing or milling treatment of the precursor mixture and/or the precursor suspension until the D90 value of the particles in the precursor suspension is less than 50 .mu.m; and c) the obtaining of LiMPO.sub.4 from the precursor suspension obtained in accordance with b), preferably by reaction under hydrothermal conditions. The material obtainable by this process has particularly advantageous particle size distributions and electrochemical properties when used in electrodes.Type: ApplicationFiled: October 4, 2010Publication date: January 27, 2011Inventors: Gerhard Nuspl, Lucia Wimmer, Max Eisgruber
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Publication number: 20110008233Abstract: A highly effective positive electrode is obtained by using a material such as Na which is an inexpensive abundant resource. A positive electrode active material of sodium transition metal phosphate of olivine structure in which the sodium transition metal phosphate of olivine structure includes, a phosphorus atom that is located at the center of a tetrahedron having an oxygen atom in each vertex, a transition metal atom that is located at the center of a first octahedron having an oxygen atom in each vertex; and a sodium atom that is located at the center of a second octahedron having an oxygen atom in each vertex, and adjacent sodium atoms are arranged one-dimensionally in a <010> direction.Type: ApplicationFiled: July 2, 2010Publication date: January 13, 2011Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Akiharu MIYANAGA, Junichi KOEZUKA, Masahiro TAKAHASHI
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Publication number: 20110006256Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine, a modified olivine, or the rhombohedral NASICON structure and the polyanion (PO4)3? as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.Type: ApplicationFiled: September 8, 2010Publication date: January 13, 2011Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakoda S. Nanjundaswamy, Christian Masquelier
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Publication number: 20110006270Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine, a modified olivine, or the rhombohedral NASICON structure and the polyanion (PO4)3? as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.Type: ApplicationFiled: September 8, 2010Publication date: January 13, 2011Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
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Publication number: 20100314589Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine, a modified olivine, or the rhombohedral NASICON structure and the polyanion (PO4)3? as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.Type: ApplicationFiled: August 20, 2010Publication date: December 16, 2010Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakada S. Nanjundaswamy, Christian Masquelier
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Publication number: 20100314577Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine, a modified olivine, or the rhombohedral NASICON structure and the polyanion (PO4)3? as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.Type: ApplicationFiled: August 20, 2010Publication date: December 16, 2010Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
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Publication number: 20100304217Abstract: The present invention provides an active material which can increase the discharge capacity of a lithium-ion secondary battery as compared with the case using conventional LiMnPO4 as a positive electrode active material. The active material in accordance with the present invention contains a crystallite of LiMnPO4, the crystallite having a size of 20 to 93 nm in a direction perpendicular to a (060) plane thereof.Type: ApplicationFiled: May 21, 2010Publication date: December 2, 2010Applicant: TDK CORPORATIONInventors: Hisashi Suzuki, Keitaro Otsuki, Masayoshi Hirano
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Patent number: 7842420Abstract: Materials useful as electrodes for lithium batteries have very good electronic and ionic conductivities. They are fabricated from a starting mixture which includes a metal, a phosphate ion, and an additive which enhances the transport of lithium ions in the resultant material. The mixture is heated in a reducing environment to produce the material. The additive may comprise a pentavalent metal or a carbon. In certain embodiments the material is a two-phase material. Also disclosed are electrodes which incorporate the materials and lithium batteries which incorporate those electrodes.Type: GrantFiled: February 2, 2006Date of Patent: November 30, 2010Assignee: A123 Systems, Inc.Inventors: Michael R. Wixom, Chuanjing Xu
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Patent number: 7842268Abstract: To provide a cathode active material for a lithium secondary battery, which is low in gas generation and has high safety and excellent durability for charge and discharge cycles even at a high charge voltage. A process for producing a lithium-containing composite oxide represented by the formula LipLqNxMyOzFa (wherein L is at least one element selected from the group of B and P, N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than N, 0.9?p?1.1, 1.0?q<0.03, 0.97?x<1.00, 0?y?0.03, 1.9?z?2.1, q+x+y=1 and 0?a?0.Type: GrantFiled: August 14, 2007Date of Patent: November 30, 2010Assignee: AGC Seimi Chemical Co., Ltd.Inventors: Takeshi Kawasato, Tokumitsu Kato, Megumi Uchida, Naoshi Saito, Manabu Suhara
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Patent number: 7833385Abstract: Processes for producing the monohydrate form of magnesium ammonium phosphate in slurry from use of environmentally friendly reactants are described. Slurry containing the monohydrate form of magnesium ammonium phosphate can be fed directly to, and mixed with, paper making feedstock, such as feedstock for cigarette paper, without transformation of the monohydrate form to the hexahydrate form of magnesium ammonium phosphate.Type: GrantFiled: November 10, 2008Date of Patent: November 16, 2010Assignee: Philip Morris USA Inc.Inventors: Jay A. Fournier, Joshua Powell, John F. Cunningham, Warren D. Winterson, Ulrike Becker
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Publication number: 20100276632Abstract: The invention provides a novel polyanion-based electrode active material for use in a secondary or rechargeable electrochemical cell, wherein the electrode active material is represented by the general formula AaMb(SO4)2Zd.Type: ApplicationFiled: July 13, 2010Publication date: November 4, 2010Inventors: Jeremy Barker, Yazid Saidi
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Publication number: 20100279117Abstract: In one aspect of the invention, a method of synthesizing a lithium metal phosphate composite usable for a lithium secondary battery includes the steps of forming a nanometer-size precursor comprising lithium source and metal phosphate nanoparticles having each nanoparticle at least partially coated a layer of carbon precursor, spray drying the nanometer-size precursor at a first desired temperature to form micron-size particles packed with the lithium metal phosphate precursor nanoparticles, and sintering the micron-size particles at a second desired temperature under an inert and/or reduction atmosphere to form a micron-size lithium metal phosphate composite.Type: ApplicationFiled: April 30, 2010Publication date: November 4, 2010Applicant: MEECOTECH, INC.Inventor: Tao Gu
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Patent number: 7824781Abstract: A metal phosphate composite having a composition represented by the formula M1xM21-x(HwPyOz) (wherein M1 represents at least one element selected from the group consisting of tin, titanium, zirconium, silicon, and germanium, M2 represents an element having a valence of 3, and x, w, y, and z satisfy the following relationship, 0.5?x<1, 0?w, 2<y<10, and 0<z<35).Type: GrantFiled: July 11, 2008Date of Patent: November 2, 2010Assignee: NGK Insulators, Ltd.Inventors: Hiroki Fujita, Yosuke Sato, Yuki Bessho
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Patent number: 7824802Abstract: A method of preparing a composite cathode active material having superior cell characteristics includes mixing and milling starting material, carbon and an organic complexing agent. The mixture is heated at a first temperature in an inert atmosphere to form a composite precursor, and then the precursor is ground and heated at a second temperature in an inert atmosphere to produce a carbon-containing composite cathode material having high electronic conductivity. The said composite cathode has a general formula of LiFe1?xMxPO4—C, within 0?x<1, M is selected from the group consisting of Co, Ni, V, Cr, Mn and a mixture thereof.Type: GrantFiled: January 17, 2007Date of Patent: November 2, 2010Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Shengshui Zhang, Kang Xu, T. Richard Jow
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Publication number: 20100266474Abstract: The present invention provides for the preparation of an “optimized” lithium vanadium phosphate material. The materials are synthesized under conditions that avoid exposure to reducing gases, such as hydrogen, at high temperatures and thus materials of high performance are produced. The lithium vanadium phosphate materials so produced find use in producing electrodes for electrochemical cells.Type: ApplicationFiled: April 1, 2010Publication date: October 21, 2010Inventors: Titus Faulkner, Jon Parke
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Publication number: 20100252847Abstract: A red light fluorescent material adapted for being excited by a first light to emit a red light is provided. The red light fluorescent material has the chemical formula (1) presented below, A2Eu(MO4)(PO4)??(1), in which A represents Li, Na, K, Rb, Cs, or Ag, and M represents Mo, W, or a combination thereof (MoxW(1-x)). The red light fluorescent material can provide a red light with high luminance and good color purity. Moreover, since the composition of the red light fluorescent material includes oxides, the red light fluorescent material has high chemical stability and long lifetime.Type: ApplicationFiled: June 3, 2009Publication date: October 7, 2010Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventors: Chuang-Hung Chiu, Teng-Ming Chen, Chi-Neng Mo
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Publication number: 20100255308Abstract: A cyclic process for the preparation of barium sulphate and lithium-iron phosphate comprising (i) preparing an aqueous solution containing lithium and sulphate ions and (ii) adding solid barium hydroxide at a temperature of more than 50° C., wherein the barium hydroxide is added over a period of less than 15 minutes. Also, barium sulphate obtainable by the process according to the invention.Type: ApplicationFiled: July 14, 2008Publication date: October 7, 2010Inventors: Christian Vogler, Klaus Langer, Andreas Pollner, Gerhard Nuspl
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Patent number: 7807121Abstract: The invention describes a process for producing a compound of the formula LiMPO4, in which M represents at least one metal from the first transition series, comprising the following steps: a) production of a precursor mixture, containing at least one Li+ source, at least one M2+ source and at least one PO43? source, in order to form a precipitate and thereby to produce a precursor suspension; b) dispersing or milling treatment of the precursor mixture and/or the precursor suspension until the D90 value of the particles in the precursor suspension is less than 50 ?m; and c) the obtaining of LiMPO4 from the precursor suspension obtained in accordance with b), preferably by reaction under hydrothermal conditions. The material obtainable by this process has particularly advantageous particle size distributions and electrochemical properties when used in electrodes.Type: GrantFiled: November 14, 2004Date of Patent: October 5, 2010Assignee: Sud-Chemie AGInventors: Gerhard Nuspl, Lucia Wimmer, Max Eisgruber
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Patent number: 7807122Abstract: A process for manufacturing a metalloaluminophosphate molecular sieve, the process comprising the steps of: (a) combining at least one silicon source, at least one metal source, at least one structure-directing-agent (R), at least one phosphorus source, and at least one aluminum source to form a mixture having a molar composition according to formula: (n)Si:Al2:(m)P:(x)R:(y)H2O:(z)M wherein n is in the range of from about 0.005 to about 0.6, m is in the range of from about 1.2 to about 2.4, x is in the range of from about 0.5 to about 2, y is in the range of from about 10 to about 60, and z is in the range of from about 0.001 to 1; and (b) submitting the mixture to crystallization conditions to form the metalloaluminophosphate molecular sieve, wherein the metalloaluminophosphate molecular sieve has an X-ray diffraction pattern having a FWHM greater than 0.10 degree (2?) and an AEI/CHA framework type ratio of from about 0/100 to about 40/60 as determined by DIFFaX analysis.Type: GrantFiled: October 27, 2006Date of Patent: October 5, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Machteld Maria Mertens, Karl G. Strohmaier
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Publication number: 20100249476Abstract: The disclosure describes a new class of isomorphously metal-substituted aluminophosphate materials with high phase purity that are capable of performing selective Brönsted acid catalyzed chemical transformations, such as transforming alcohols to olefins, with high conversions and selectivities using mild conditions. Isomorphous substitutions of functional metal ions for both the aluminum ions and the phosphorous ions were successful in various AlPO structures, along with multiple metal substitutions into a single aluminum site and/or a phosphorous site. This invention can be used towards the catalytic conversion of hydroxylated compounds of linear and/or branched moiety with the possibility of being substituted to their respective hydrocarbon products, preferably light olefins containing 2 to 10 carbon atoms, among other chemistries.Type: ApplicationFiled: January 22, 2010Publication date: September 30, 2010Applicant: SiGNa Chemistry, Inc.Inventors: Michael LEFENFELD, Robert RAJA, Alexander James PATERSON, Matthew Edward POTTER
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Patent number: 7799457Abstract: An ion storage compound of cathode material and method for preparing the same are disclosed. The method for preparing the ion storage compound comprises steps of providing a first reactant having a formula of A3xM12y(PO4)3, providing a second reactant being at least one compound selected from the group consisting of SiC, BN and metal oxide having a formula of M2aOb, and reacting the first reactant with the second reactant to form the ion storage compound. A is at least one element selected from the group consisting of Groups IA, IIA and IIIA; each of M1 and M2 is at least one element selected from the group consisting of Groups IIA, IIIA, IVA and VA and transition metal elements, respectively; and 0<x?1.2, 1.2?y?1.8, 0<a?7, and 0<b?6.Type: GrantFiled: June 18, 2007Date of Patent: September 21, 2010Assignee: Advanced Lithium Electrochemistry Co., LtdInventors: Wen-Ren Liu, Chih-Wei Yang
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Publication number: 20100233544Abstract: The present invention provides a method of manufacturing an active material comprising both ?-LiVOPO4 and ?-LiVOPO4. The method of manufacturing an active material in accordance with the present invention comprises a hydrothermal synthesis step of heating a mixture containing a lithium source, a phosphate source, a vanadium source, and water and having a pH greater 7 but smaller than 12.7; and a firing step of firing the mixture after being heated under pressure in the hydrothermal synthesis step.Type: ApplicationFiled: March 12, 2010Publication date: September 16, 2010Applicant: TDK CORPORATIONInventors: Atsushi SANO, Keitaro OTSUKI, Yousuke MIYAKI, Takeshi TAKAHASHI, Tohru INOUE, Akiji HIGUCHI
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Publication number: 20100233058Abstract: The present invention provides a method of manufacturing an active material which can form an electrochemical device excellent in discharge capacity. The method of manufacturing an active material in accordance with the present invention comprises a hydrothermal synthesis step of heating a mixture including a lithium compound, a metal compound containing one species selected from the group consisting of Fe, Mn, Co, Ni, and V, a phosphorus compound, and water within a reactor while keeping an internal pressure of the reactor at 0.3 MPa or lower by ventilating the inside of the reactor to the outside, and closing the reactor at a time when the temperature of the mixture reaches 100 to 150° C.; and a firing step of firing the mixture after the hydrothermal synthesis step.Type: ApplicationFiled: March 12, 2010Publication date: September 16, 2010Applicant: TDK CORPORATIONInventors: Atsushi SANO, Keitaro OTSUKI, Yousuke MIYAKI, Takeshi TAKAHASHI, Akiji HIGUCHI
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Patent number: 7790318Abstract: Disclosed in a positive active material for a lithium secondary battery including a compound represented by formula 1 and having a 10% to 70% ratio of diffracted intensity of diffraction lines in 2?=53° (104 plane) with respect to diffracted intensity of diffraction lines in the vicinity of 2?=22° (003 plane) in X-ray diffraction patterns using a CoK?-ray, LixCoO2-yAy??(1) wherein, x is from 0.90 to 1.04, y is from 0 to 0.5, and A is selected from the group consisting of F, S and P.Type: GrantFiled: February 26, 2010Date of Patent: September 7, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Jung-Joon Park, Su-Ho Song, Wan-Seog Oh, Jae-Chul Um
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Patent number: 7790319Abstract: The present invention is directed to a method for making electrode active materials represented by the general formula: Aa(VO)bXO4, wherein: (a) A is an alkali metal or mixture of alkali metals, and 0<a<4; (b) 0<b<2; (c) X is selected from the group consisting of phosphorous (P), sulfur (S), arsenic (As), silicon (Si), and combinations thereof; and wherein A, X, a and b are selected to maintain the electroneutrality of the electrode active material in its nascent (as prepared or synthesized) state.Type: GrantFiled: April 21, 2006Date of Patent: September 7, 2010Assignee: Valence Technology, Inc.Inventor: Titus Faulkner
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Patent number: 7781100Abstract: A cathode material including a first compound and a second compound is disclosed. The first compound has a formula of A3xM12y(PO4)3 and includes plural micrometer-sized secondary particles, each of which has a particle size larger than 1 ?m and is composed of crystalline nanometer-sized primary particles, each of which has a particle size ranging from 10 to 500 nm. The second compound is at least one compound selected from the group consisting of SiC, BN and metal oxide having a formula of M2aOb and is coated on the first compound. A is at least one element selected from the group consisting of Groups IA, IIA and IIIA; each of M1 and M2 is at least one element selected from the group consisting of Groups IIA, IIIA, IVA and VA and transition metal elements, respectively; and 0<x?1.2, 1.2?y?1.8, 0<a?7, and 0<b?6.Type: GrantFiled: May 11, 2007Date of Patent: August 24, 2010Assignee: Advanced Lithium Electrochemistry Co., LtdInventors: Wen-Ren Liu, Chih-Wei Yang
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Patent number: 7759006Abstract: Disclosed is a compound represented by the following formula 1. A lithium secondary battery using the same compound as electrode active material, preferably as cathode active material, is also disclosed. LiMP1-xAxO4??[Formula 1] wherein M is a transition metal, A is an element having an oxidation number of +4 or less and 0<x<1. The electrode active material comprising a compound represented by the formula of LiMP1-xAxO4 shows excellent conductivity and charge/discharge capacity compared to LiMPO4.Type: GrantFiled: July 14, 2005Date of Patent: July 20, 2010Assignee: LG Chem, Ltd.Inventors: Sung Kyun Chang, Jeong Ju Cho
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Publication number: 20100170845Abstract: A method of treating a mixture of microorganisms with readily biodegradable carbon compounds (RBCs) in the form of one or more volatile fatty acids (VFAs), by first inducing the mixture microorganisms to release phosphorus and magnesium which is then tapped o as the mixture is thickened, to produce a phosphorus/magnesium-nch liquid and a phosphorus/magnesium-reduced treated mixture This treated mixture is placed in an anaerobic digester where ammonia is formed, but combines very little with phosphorus or magnesium Next the high-ammonia mixture is dewatered to produce an ammonia-rich liquid, which is combined with the phosphorus and magnesium-rich liquid and reacted to form struvite In one preferred embodiment, VFAs are formed in situ via an upstream unified fermentation and thickening (UFAT) process and added to the waste sidestream to strip phosphorus and magnesium found therein In another preferred embodiment a usable struvite product is harvested.Type: ApplicationFiled: February 2, 2009Publication date: July 8, 2010Inventor: Robert Baur
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Publication number: 20100155656Abstract: Processes produce a lithium vanadium fluorophosphate or a carbon-containing lithium vanadium fluorophosphate. Such processes include forming a solution-suspension of precursors having V5+ that is to be reduced to V3+. The solution-suspension is heated in an inert environment to drive synthesis of LiVPO4F such that carbon-residue-forming material is also oxidized to precipitate in and on the LiVPO4F forming carbon-containing LiVPO4F or CLVPF. Liquids are separated from solids and a resulting dry powder is heated to a second higher temperature to drive crystallization of a product. The product includes carbon for conductivity, is created with low cost precursors, and retains a small particle size without need for milling or other processing to reduce the product to a particle size suitable for use in batteries. Furthermore, the process does not rely on addition of carbon black, graphite or other form of carbon to provide the conductivity required for use in batteries.Type: ApplicationFiled: December 17, 2009Publication date: June 24, 2010Applicant: ConocoPhillips CompanyInventors: ZHENHUA MAO, Mark W. Carel, Daniel H. Irvin, David W. Westphal
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Patent number: 7736607Abstract: The process of this invention is directed to the removal of metals from an unsupported spent catalyst. The catalyst is subjected to leaching reactions. Vanadium is removed as a precipitate, while a solution comprising molybdenum and nickel is subjected to further extraction steps for the removal of these metals. Molybdenum may alternately be removed through precipitation.Type: GrantFiled: December 30, 2008Date of Patent: June 15, 2010Assignee: Chevron U.S.A. IncInventor: Paul J. Marcantonio
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Patent number: 7722848Abstract: Lithium iron phosphate cathode materials for lithium secondary batteries and methods of preparation thereof are disclosed. Better cathode materials may be produced by multiple annealing and/or heating steps. The annealing step can be carried out before and/or after the heating steps to provide cathode materials, which exhibit superior electrical properties. In some instances, divalent iron compounds are incorporated as starting materials.Type: GrantFiled: May 27, 2008Date of Patent: May 25, 2010Assignee: BYD Company LimitedInventors: Quan Dai, Julin Shen
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Patent number: 7718320Abstract: A family of Li-ion battery cathode materials and methods of synthesizing the materials. The cathode material is a defective crystalline lithium transition metal phosphate of a specific chemical form. The material can be synthesized in air, eliminating the need for a furnace having an inert gas atmosphere. Excellent cycling behavior and charge/discharge rate capabilities are observed in batteries utilizing the cathode materials.Type: GrantFiled: January 13, 2009Date of Patent: May 18, 2010Assignee: Changs-Ascending Enterprise CoInventor: Chun-Chieh Chang
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Patent number: 7700236Abstract: A cathode material has one of olivine and NASICON structures and includes micrometer-sized secondary particles having a particle size ranging from 1 to 50 ?m. Each of the micrometer-sized secondary particles is composed of crystalline nanometer-sized primary particles of a metal compound having a particle size ranging from 10 to 500 nm.Type: GrantFiled: August 25, 2006Date of Patent: April 20, 2010Assignee: Aquire Energy Co., Ltd.Inventor: Chih-Wei Yang
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Publication number: 20100092364Abstract: Calcium-phosphate based nanoparticles (CAPNP) are synthesized which are simultaneously intrinsically magnetic and fluorescent, and extrinsically surface modified to serve an attachment function. Doping calcium phosphates during colloidal synthesis results in 10 nm particles that are stable in aqueous media and at physiological pH. The scalable, one-step synthesis produces several modified CAPNPs. By introducing metal dopants into the base crystal lattice during synthesis, magnetically, electronically and optically enhanced nanoparticle dispersions were similarly synthesized.Type: ApplicationFiled: October 13, 2009Publication date: April 15, 2010Inventors: Rajendra Kumar Kasinath, Kumar Ganesan, Marisa Pedulla
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Patent number: 7695869Abstract: Disclosed in a positive active material for a lithium secondary battery including a compound represented by formula 1 and having a 10% to 70% ratio of diffracted intensity of diffraction lines in 2?=53° (104 plane) with respect to diffracted intensity of diffraction lines in the vicinity of 2?=22° (003 plane) in X-ray diffraction patterns using a CoK?-ray, LixCoO2-yAy??(1) wherein, x is from 0.90 to 1.04, y is from 0 to 0.5, and A is selected from the group consisting of F, S and P.Type: GrantFiled: January 15, 2009Date of Patent: April 13, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Jung-Joon Park, Su-Ho Song, Wan-Seog Oh, Jae-Chul Um
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Publication number: 20100086461Abstract: Provided are lithium transition metal phosphates where the cation anti-site defects between lithium and transition metals in a lithium transition metal phosphate with a cation well-ordered olivine structure are arranged only in a 1D crystal direction, and a method of preparing the same. The method comprises adding any one selected from the group consisting of an alkali element and an element that has a valence of 5+ or any combination thereof to a solid salt comprising lithium, transition metals, and phosphorus as a starting material to produce a first intermediate material; subjecting the first intermediate to a first heat treatment at a temperature of approximately 250° C. to approximately 400° C. to produce a second amorphous material; and cooling the second intermediate material to room temperature, followed by a second heat treatment at a temperature of approximately 400° C. to approximately 800° C.Type: ApplicationFiled: December 9, 2009Publication date: April 8, 2010Inventor: Sung Yoon CHUNG
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Patent number: 7691354Abstract: A process for producing an ElAPO molecular sieve with essentially pure CHA framework is disclosed. When El is silicon the process allows for a broad range of silicon content, and produces a catalyst with a high selectivity for the conversion of methanol to olefins.Type: GrantFiled: July 15, 2009Date of Patent: April 6, 2010Assignee: UOP LLCInventor: Stephen T. Wilson
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Patent number: 7691171Abstract: This invention provides a process for the preparation of water insoluble, bio-release iron-manganese fertilizer which comprises, heating phosphoric acid with a mixture of (i) source of iron oxide such as goethite and hematite, (ii) pyrolusite and (iii) one or more basic compound(s) selected from oxide(s) or carbonate(s) of magnesium, calcium, sodium and potassium, (b) neutralisation followed by drying and pulverisation.Type: GrantFiled: August 6, 2004Date of Patent: April 6, 2010Assignee: Department of Science & Technology (DST) A Department under the Ministry of Science and Technology, Government of IndiaInventor: Chandrika Varadachari
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Publication number: 20100074822Abstract: Provided is a process for preparing a nanoparticle powder of lithium transition metal phosphate, involving synthesis of lithium transition metal phosphate (LiMPO4) (M=Fe, Mn, Co, Ni, Ti, Cu or any combination thereof) into a nanoparticle powder having a particle size of less than 100 nm to thereby significantly reduce a diffusion distance of lithium ions within particles, which consequently results in full exploitation of a capacity of an electrode material corresponding up to a theoretical capacity thereof and formation of nanoparticles having a high electrical conductivity within a short period of time, and which is also capable of achieving efficient industrial-scale production of a desired compound via a heat treatment at a low temperature of less than 600° C. for a short period of time of less than 4 hours while overcoming a shortcoming of a low electrical conductivity, using solid raw materials.Type: ApplicationFiled: December 28, 2007Publication date: March 25, 2010Inventor: Sung Yoon Chung
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Patent number: 7674553Abstract: Disclosed in a positive active material for a lithium secondary battery including a compound represented by formula 1 and having a 10% to 70% ratio of diffracted intensity of diffraction lines in 2?=53° (104 plane) with respect to diffracted intensity of diffraction lines in the vicinity of 2?=22° (003 plane) in X-ray diffraction patterns using a CoK?-ray, LixCoO2-yAy??(1) wherein, x is from 0.90 to 1.04, y is from 0 to 0.5, and A is selected from the group consisting of F, S and P.Type: GrantFiled: February 16, 2005Date of Patent: March 9, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Jung-Joon Park, Su-Ho Song, Wan-Seog Oh, Jae-Chul Um
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Patent number: 7670405Abstract: This invention describes a process for the preparation of bio-release molybdenum fertilizers which comprises heating molybdenum trioxide, one or more basic compound(s) of metal(s) selected from magnesium, calcium and sodium, and phosphoric acid till a solid polyphosphate is obtained and finally obtaining the dried powder.Type: GrantFiled: August 6, 2004Date of Patent: March 2, 2010Assignee: Department of Science & Technology (DST)Inventor: Chandrika Varadachari
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Patent number: 7670721Abstract: Methods of manufacture and use of phosphates of transition metals are described as positive electrodes for secondary lithium batteries, including a process for the production of LiMPO4 with controlled size and morphology, M being FexCoyNizMnw, where 0?x?1, 0?y?1, 0?w?1, and x+y+z+w=1. According to an exemplary embodiment, a process is described for the manufacture of LiFePO4 including the steps of providing an equimolar aqueous solution of Li1+, Fe3+ and PO43?, evaporating water from the solution to produce a solid mixture, decomposing the solid mixture at a temperature of below 500° C. to form a pure homogeneous Li and Fe phosphate precursor, and annealing the precursor at a temperature of less than 800° C. in a reducing atmosphere to produce the LiFePO4 powder. The obtained powders can have a particle size of less than 1 ?m, and can provide superior electrochemical performance when mixed for an appropriate time with an electrically conductive powder.Type: GrantFiled: April 11, 2007Date of Patent: March 2, 2010Assignees: Le Centre National de la Rocherche Scientifique, UmicoreInventors: Calin Wurm, Mathieu Morcrette, Sylvain Gwizdala, Christian Masquelier
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Patent number: 7662227Abstract: The present invention relates to compounds on apatite basis, having the general formula M5 (A04)3X wherein X is situated in the hexagonal channels of the apatite structure and includes Cu-atoms, processes for the preparation thereof as well as applications of these compounds. The compounds presented herein are particularly useful as pigments.Type: GrantFiled: October 31, 2007Date of Patent: February 16, 2010Assignee: Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V.Inventors: Pavel E. Kazin, Andrei S. Karpov, Martin Jansen
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Publication number: 20100028677Abstract: A system for delivering nano-metallic alloys to infected cells in a patient is disclosed. The nano-metallic alloy may be formed from binary, triple, or quadruple elemental compositions complexed in predetermined percentages of monosodium phosphate monohydrate and disodium phosphate heptahydrate. The nano-metallic alloy may be capable of eliminating infectious microorganisms within infect cells or legions without harming the cells or tissues. The system may also include a method of placement of a predetermined concentration of the nano-metallic alloy in the complexing solution in the vicinity of the infected cells of legions to kill the foreign matter.Type: ApplicationFiled: July 30, 2009Publication date: February 4, 2010Applicant: UNIVERSITY OF NORTH CAROLINA AT GREENSBOROInventor: Yousef Haik
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Publication number: 20100028676Abstract: The LiMPO4 compound is synthesized by reacting a compound of general formula XMPO4, nH2O where X represents a radical selected from —NH4 and —H and M is a transition metal selected from Co, Ni and Mn, with a lithium source such as lithium nitrate, at a temperature lower than or equal to 350° C. The XMPO4, nH2O compound further exhibits a particular morphology in the form of platelets that is preserved during the reaction between the two precursors. The LiMPO4 compound thus synthesized is advantageously used as active material of an electrode for a lithium storage battery.Type: ApplicationFiled: March 12, 2008Publication date: February 4, 2010Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUEInventors: Sebastien Patoux, Carole Pagano, Carole Bourbon, Frederic Le Cras
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Patent number: 7645907Abstract: This invention relates to a Polyoxometalate (POM) represented by the formula: (An)m+[HqM16X8W48O184(OH)32]m? or solvates thereof, wherein: A represents a cation, n is the number of the cations A, m is the charge of the polyoxoanion, q is the number of protons and varies from 0 to 12, M represents a transition metal, and X represents a heteroatom selected from P, As and mixtures thereof. This invention also relates to a process to produce such POMs and to a process for the homogeneous or heterogeneous oxidation of organic substrates comprising contacting the organic substrate with such POMs.Type: GrantFiled: March 23, 2007Date of Patent: January 12, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Ulrich Kortz, Sib Sankar Mal
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Patent number: 7622090Abstract: The invention relates to a method for separating uranium(VI) from one or more actinides selected from actinides(IV) and actinides(VI) other than uranium(VI), characterized in that it comprises the following steps: a) bringing an organic phase, which is immiscible with water and contains the said uranium and the said actinide or actinides, in contact with an aqueous acidic solution containing at least one lacunary heteropolyanion and, if the said actinide or at least one of the said actinides is an actinide(VI), a reducing agent capable of selectively reducing this actinide(VI); and b) separating the said organic phase from the said aqueous solution. Applications: reprocessing irradiated nuclear fuels, processing rare-earth, thorium and/or uranium ores.Type: GrantFiled: November 17, 2004Date of Patent: November 24, 2009Assignees: Commissariat a l'Energie Atomique, Compagnie General des Matieres NucleairesInventors: Binh Dinh, Michaël Lecomte, Pascal Baron, Christian Sorel, Gilles Bernier
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Patent number: 7622624Abstract: A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about 55/45 as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al2) from about 0.13 to about 0.24.Type: GrantFiled: March 4, 2005Date of Patent: November 24, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Machteld M. Mertens, An Verberckmoes, Marcel J. Janssen, Yun Feng Chang, Luc R. M. Martens, Stephen Neil Vaughn, Kenneth Ray Clem, Wilfried J. Mortier
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Patent number: RE41251Abstract: The present invention is directed to a synthetic biomaterial compound based on stabilized calcium phosphates and more particularly to the molecular, structural and physical characterization of this compound. The compound comprises calcium, oxygen and phosphorous, wherein at least one of the elements is substituted with an element having an ionic radius of approximately 0.1 to 1.1 ?. The knowledge of the specific molecular and chemical properties of the compound allows for the development of several uses of the compound in various bone-related clinical conditions.Type: GrantFiled: January 30, 2008Date of Patent: April 20, 2010Inventors: Sydney M. Pugh, Timothy J. N. Smith, Michael Sayer, Sarah D. Langstaff