Manganese (e.g., Manganate, Etc.) Patents (Class 423/599)
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Publication number: 20080260621Abstract: The present invention provides a process for making a complex metal oxide comprising the formula AxByOz. The process comprises the steps of: (a) reacting in solution at a temperature of between about 75° C. to about 100° C. at least one water-soluble salt of A, at least one water-soluble salt of B and a stoichiometric amount of a carbonate salt or a bicarbonate salt required to form a mole of a carbonate precipitate represented by the formula AxBy(CO3)n, wherein the reacting is conducted in a substantial absence of carbon dioxide to form the carbonate precipitate and wherein the molar amount of carbonate salt or bicarbonate salt is at least three times the stoichiometric amount of carbonate or bicarbonate salt required to form a mole of the carbonate precipitate; and (b) reacting the carbonate precipitate with an oxygen containing fluid under conditions to form the complex metal oxide.Type: ApplicationFiled: April 20, 2007Publication date: October 23, 2008Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Robert Quinn, Diwakar Garg, Frederick Carl Wilhelm, Terry Lee Slager
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Publication number: 20080247931Abstract: The preparation of finely divided, alkali metal-containing metal oxide powders which contain at least one alkali metal and at least one further metal from the group consisting of the transition metals, the remaining main group metals, the lanthanides and actinides is described. Precursor compounds of these components are introduced in solid form or in the form of a solution or a suspension into a pulsation reactor having a gas flow resulting from a flameless combustion and partly or completely converted into the desired multicomponent metal oxide powder.Type: ApplicationFiled: September 10, 2005Publication date: October 9, 2008Applicant: UMICORE AG & CO. KGInventors: Rainer Domesle, Stefan Ambrousius, Thomas Kreuzer
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Publication number: 20080241053Abstract: Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an ammonium-ion donor to react under specific conditions; and a lithium-nickel-cobalt-manganese-containing composite oxide represented by a general formula, LipNixMn1-x-yCoyO2-qFq (where 0.98?p?1.07, 0.3?x?0.5, 0.1?y?0.38, and 0?q?0.05), which is a positive electrode active material for a lithium secondary cell having a wide usable voltage range, a charge-discharge cycle durability, a high capacity and high safety, is obtained by dry-blending coagulated particles of nickel-cobalt-manganese composite oxyhydroxide formed by making an oxidant to act on the coagulated particles with a lithium salt, and firing the mixture in an oxygen-containing atmosphere.Type: ApplicationFiled: April 22, 2008Publication date: October 2, 2008Applicant: SEIMI CHEMICAL CO., LTD.Inventors: Manabu Suhara, Takuya Mihara, Koichiro Ueda, Yukimitsu Wakasugi
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Publication number: 20080233033Abstract: 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: ApplicationFiled: March 23, 2007Publication date: September 25, 2008Inventors: Ulrich Kortz, Sib Sankar Mal
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Publication number: 20080191600Abstract: A display device comprising at least one phosphor layer, the phosphor layer containing a green phosphor of ? alumina structure represented by the following formula: A(Zn1-x-yMgxMny)Al10O17 wherein, A is an element selected from Ca, Ba and Sr, x is a number satisfying 0.01?x?0.3, and y is a number satisfying 0.02?x?0.14.Type: ApplicationFiled: March 17, 2005Publication date: August 14, 2008Inventors: Tomonari Misawa, Shinya Fukuta, Toshiaki Onimaru, Hironori Sakata, Shigeo Kasahara
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Publication number: 20080182169Abstract: A layered lithium-nickel-based compound oxide powder for a positive electrode material for a high density lithium secondary cell, capable of providing a lithium secondary cell having a high capacity and excellent in the rate characteristics also, is provided. A layered lithium-nickel-based compound oxide powder for a positive electrode material for a lithium secondary cell, characterized in that the bulk density is at least 2.0 g/cc, the average primary particle size B is from 0.1 to 1 ?m, the median diameter A of the secondary particles is from 9 to 20 ?m, and the ratio A/B of the median diameter A of the secondary particles to the average primary particle size B, is within a range of from 10 to 200.Type: ApplicationFiled: October 31, 2007Publication date: July 31, 2008Applicant: MITSUBISHI CHEMICAL CORPORATIONInventor: Kenji Shizuka
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Publication number: 20080160414Abstract: Provided are a cathode active material for a non-aqueous electrolyte secondary battery with high operating voltage, high volume capacity density, high safety and excellent charge and discharge cyclic properties, and its production method. The cathode active material for a non-aqueous electrolyte secondary battery, which comprises a lithium-containing composite oxide powder, which is represented by the formula LipNxMyOzFa (wherein 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 the element N, 0.9?p?1.1, 0.965?x<1.00, 0<y?0.035, 1.9?z?2.1, x+y=1 and 0?a?0.02), a surface layer of which contains zirconium, and the surface layer within 5 nm of which has an atomic ratio (zirconium/the element N) of at least 1.0.Type: ApplicationFiled: March 13, 2008Publication date: July 3, 2008Applicant: AGC Seimi Chemical Co., Ltd.Inventors: Yukio Jitsugiri, Yukiko Amagasaki, Takeshi Kawasato, Naoshi Saito, Tokumitsu Kato, Yukimitsu Wakasugi
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Patent number: 7393476Abstract: A positive active material for lithium secondary batteries, includes a composite oxide including an oxide which is represented by the composite formula LixMnaNibCocO2 and has an ?-NaFeO2 structure, and an impurity phase including Li2MnO3. The values a, b, and c are within such a range that in a ternary phase diagram showing the relationship among these, (a, b, c) is present on the perimeter of or inside the quadrilateral ABCD defined by point A (0.5, 0.5, 0), point B (0.55, 0.45, 0), point C (0.55, 0.15, 0.30), and point D (0.15, 0.15, 0.7) as vertexes, and 0.95<x/(a+b+c)<1.35.Type: GrantFiled: November 12, 2002Date of Patent: July 1, 2008Assignee: GS Yuasa CorporationInventors: Ryuji Shiozaki, Akihiro Fujii, Kazuya Okabe, Toshiyuki Nukuda
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Publication number: 20080152567Abstract: The present disclosure sets forth an effluent treatment composition, system, and method for the comprehensive treatment of odiferous or noxious effluent formed as a result of an industrial process. The treatment composition includes an oxidant, a biocide, a scale inhibitor, and an anti-foulant agent. The oxidant may be a permanganate composition. A gas absorption system may be used to apply the treatment composition to an odorous effluent to remove primary and secondary odor components from the industrial process.Type: ApplicationFiled: December 20, 2006Publication date: June 26, 2008Inventor: Kerry R. Killough
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Patent number: 7384706Abstract: Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an ammonium-ion donor to react under specific conditions; and a lithium-nickel-cobalt-manganese-containing composite oxide represented by a general formula, LipNixMn1-x-yCoyO2-qFq (where 0.98?p?1.07, 0.3?x?0.5, 0.1?y?0.38, and 0?q?0.05), which is a positive electrode active material for a lithium secondary cell having a wide usable voltage range, a charge-discharge cycle durability, a high capacity and high safety, is obtained by dry-blending coagulated particles of nickel-cobalt-manganese composite oxyhydroxide formed by making an oxidant to act on the coagulated particles with a lithium salt, and firing the mixture in an oxygen-containing atmosphere.Type: GrantFiled: March 22, 2004Date of Patent: June 10, 2008Assignee: Seimi Chemical Co., Ltd.Inventors: Manabu Suhara, Takuya Mihara, Koichiro Ueda, Yukimitsu Wakasugi
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Publication number: 20080131357Abstract: Collections of particles comprising multiple a metal oxide can be formed with average particle sizes less than about 500 nm. In some embodiments, the particle collections have particle size distributions such that at least about 95 percent of the particles have a diameter greater than about 40 percent of the average diameter and less than about 160 percent of the average diameter. Also, in further embodiments, the particle collections have particle size distribution such that effectively no particles have a diameter greater than about four times the average diameter of the collection of particles.Type: ApplicationFiled: January 16, 2008Publication date: June 5, 2008Inventors: Sujeet Kumar, Hariklia Dris Reitz, Craig R. Home, James T. Gardner, Ronald J. Mosso, Xiangxin Bi
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Patent number: 7381498Abstract: To provide a lithium-nickel-cobalt-manganese composite oxide powder for a positive electrode of a lithium secondary battery, which has a large volume capacity density and high safety and is excellent in the charge and discharge cyclic durability. A positive electrode active material powder for a lithium secondary battery characterized by comprising a first granular powder having a compression breaking strength of at least 50 MPa and a second granular powder having a compression breaking strength of less than 40 MPa, formed by agglomeration of many fine particles of a lithium composite oxide represented by the formula LipNixCoyMnzMqO2-aFa (wherein M is a transition metal element other than Ni, Co and Mn, Al or an alkaline earth metal element, 0.9?p?1.1, 0.2?x?0.8, 0?y?0.4, 0?z?0.5, y+z>0, 0?q?0.05, 1.9?2?a?2.1, x+y+z+q=1 and 0?a?0.02) to have an average particle size D50 of from 3 to 15 ?m, in a weight ratio of the first granular powder/the second granular powder being from 50/50 to 90/10.Type: GrantFiled: June 13, 2005Date of Patent: June 3, 2008Assignee: Seimi Chemical Co., Ltd.Inventors: Manabu Suhara, Takuya Mihara, Koichiro Ueda, Yukimitsu Wakasugi
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Patent number: 7381394Abstract: Methods of producing a safe and hygienic method for industrially and efficiently producing a perovskite-type composite oxide are provided that can maintain the catalytic activity of a noble metal at a high level. Methods include preparing a precursor of the perovskite-type composite oxide by mixing organometal salts of elementary components of the perovskite-type composite oxide and heat treating the precursor. The precursor may be prepared by mixing all elementary components constituting the perovskite-type composite oxide, or by mixing one or more organometal salts of part of the elementary components with the other elementary components prepared as alkoxides, a coprecipitate of salts, or a citrate complex of the respective elements.Type: GrantFiled: July 3, 2003Date of Patent: June 3, 2008Assignees: Daihatsu Motor Co., Ltd., Hokko Chemical Industry Co. Ltd.Inventors: Hirohisa Tanaka, Kimiyoshi Kaneko
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Publication number: 20080121584Abstract: Methods of making unique water treatment compositions are provided. In one embodiment, a method of making a doped metal oxide or hydroxide for treating water comprises: disposing a metal precursor solution and a dopant precursor solution in a reaction vessel comprising water to form a slurry; and precipitating the doped metal oxide or hydroxide from the slurry.Type: ApplicationFiled: June 14, 2007Publication date: May 29, 2008Applicants: INFRAMAT CORPORATION, UNIVERSITY OF HOUSTONInventors: Huimin Chen, Dennis A. Clifford
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Publication number: 20080124265Abstract: An anode in a Direct Carbon Fuel Cell (DCFC) operating in a temperature range between 500 and 1200 degrees Celsius is provided. The anode material has high catalytic activity and selectivity for carbon oxidation, sufficient oxygen non-stoichiometry, rapid oxygen chemical diffusion, wide thermodynamic stability window to withstand reducing environment, sufficient electronic conductivity and tolerance to sulfur and CO2 environments. The anode has doped ruthenate compositions A1?xA?xRuO3, AB1?yRuyO3, or A1?xA?xB1?yRuyO3. A and A? may be divalent, trivalent, or tetravalent cation, and B is a multivalent cation. A is among lanthanide series elements La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Er or Yb, and dopant A? is from Group IIA, IIIB, or IVB elements. The doped ruthenates can also be a (AB1?yRuyO3) structure or an ordered Ruddlesden-Popper series ((A1?xAx?)n+1(B1?yRuy)nO3n+1) structure where n=1 or 2. The dopant B is among Group IVB, VB, VIB, VIII, IB, and IIB elements.Type: ApplicationFiled: October 16, 2007Publication date: May 29, 2008Inventor: Turgut M. Gur
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Patent number: 7368095Abstract: The present invention provides a composite oxide for a high performance solid oxide fuel cell which can be fired at a relatively low temperature, and which has little heterogeneous phases of impurities other than the desired composition. The composite oxide is the one having a perovskite type crystal structure containing rare earth elements, and having constituent elements homogeneously dispersed therein. A homogeneous composite oxide having an abundance ratio of heterogeneous phases of at most 0.3% by average area ratio, and a melting point of at least 1470° C., is obtained by using metal carbonates, oxides or hydroxides, and reacting them with citric acid in an aqueous system.Type: GrantFiled: November 15, 2002Date of Patent: May 6, 2008Assignee: Seimi Chemical Co., Ltd.Inventors: Fumio Munakata, Kenji Furuya, Masaharu Hatano, Yoshinori Fujie, Manabu Suhara
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Patent number: 7364793Abstract: The present invention provides a powdered lithium transition metal oxide useful as a major component for cathode active material of rechargeable lithium batteries, comprising a lithium transition metal oxide particle, a doped interface layer formed near the surface of the particle, and a thermodynamically and mechanically stable outer layer, and a method of preparing the same.Type: GrantFiled: September 24, 2004Date of Patent: April 29, 2008Assignee: LG Chem, Ltd.Inventors: Jens M. Paulsen, Munju Kim, Joon Sung Bae, Jaeup Jang, Hong-Kyu Park
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Patent number: 7357910Abstract: Method for producing metal oxide nanoparticles. The method includes generating an aerosol of solid metallic microparticles, generating plasma with a plasma hot zone at a temperature sufficiently high to vaporize the microparticles into metal vapor, and directing the aerosol into the hot zone of the plasma. The microparticles vaporize in the hot zone into metal vapor. The metal vapor is directed away from the hot zone and into the cooler plasma afterglow where it oxidizes, cools and condenses to form solid metal oxide nanoparticles.Type: GrantFiled: July 15, 2002Date of Patent: April 15, 2008Assignee: Los Alamos National Security, LLCInventors: Jonathan Phillips, Daniel Mendoza, Chun-Ku Chen
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Publication number: 20080057204Abstract: Tunable variable emissivity materials, methods for fabricating tunable variable emissivity materials, and methods for controlling the temperature of a spacecraft using tunable variable emissivity materials have been provided. In an exemplary embodiment, a variable emissivity material has the formula M1(1?(x+y))M2xM3yMnO3, wherein M1 comprises lanthanum, praseodymium, scandium, yttrium, neodymium or samarium, M2 comprises an alkali earth metal, M3 comprises an alkali earth metal that is not M2, and x, y, and (x+y) are less than 1. The material has a critical temperature (Tc) in the range of about 270 to about 320 K and a transition width is less than about 30 K.Type: ApplicationFiled: August 29, 2006Publication date: March 6, 2008Inventors: Robert Cumberland, William B. Barvose Carter, Adam F. Gross
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Patent number: 7338582Abstract: It is an object of the present invention to provide an oxygen reduction electrode having excellent oxygen reduction catalysis ability. In a method of manufacturing a manganese oxide nanostructure having excellent oxygen reduction catalysis ability and composed of secondary particles which are aggregations of primary particles of manganese oxide, a target plate made of manganese oxide is irradiated with laser light to desorb the component substance of the target plate, and the desorbed substance is deposited on a substrate facing substantially parallel to the aforementioned target plate.Type: GrantFiled: August 16, 2005Date of Patent: March 4, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Nobuyasu Suzuki, Yasunori Morinaga, Hidehiro Sasaki, Yuka Yamada
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Patent number: 7323158Abstract: Collections of particles comprising multiple a metal oxide can be formed with average particle sizes less than about 500 nm. In some embodiments, the particle collections have particle size distributions such that at least about 95 percent of the particles have a diameter greater than about 40 percent of the average diameter and less than about 160 percent of the average diameter. Also, in further embodiments, the particle collections have particle size distribution such that effectively no particles have a diameter greater than about four times the average diameter of the collection of particles.Type: GrantFiled: September 4, 2003Date of Patent: January 29, 2008Assignee: NanoGram CorporationInventors: Sujeet Kumar, Hariklia Dris Reitz, Craig R. Horne, James T. Gardner, Ronald J. Mosso, Xiangxin Bi
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Patent number: 7314684Abstract: A positive electrode active material for lithium-ion rechargeable batteries of general formula Li1+xNi?Mn?A?O2 and further wherein A is Mg, Zn, Al, Co, Ga, B, Zr, or Ti and 0<x<0.2, 0.1???0.5, 0.4???0.6, 0???0.1 and a method of manufacturing the same. Such an active material is manufactured by employing either a solid state reaction method or an aqueous solution method or a sol-gel method which is followed by a rapid quenching from high temperatures into liquid nitrogen or liquid helium.Type: GrantFiled: March 12, 2004Date of Patent: January 1, 2008Assignee: U Chicago Argonne LLCInventors: Sun-Ho Kang, Khalil Amine
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Patent number: 7314682Abstract: An uncycled electrode for a non-aqueous lithium electrochemical cell including a lithium metal oxide having the formula Li(2+2x)/(2+x)M?2x/(2+x)M(2?2x)/(2+x)O2??, in which 0?x<1 and ? is less than 0.2, and in which M is a non-lithium metal ion with an average trivalent oxidation state selected from two or more of the first row transition metals or lighter metal elements in the periodic table, and M? is one or more ions with an average tetravalent oxidation state selected from the first and second row transition metal elements and Sn. Methods of preconditioning the electrodes are disclosed as are electrochemical cells and batteries containing the electrodes.Type: GrantFiled: April 15, 2004Date of Patent: January 1, 2008Assignee: UChicago Argonne, LLCInventors: Michael M. Thackeray, Jeom-Soo Kim, Christopher S. Johnson
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Patent number: 7303840Abstract: An activated electrode for a non-aqueous electrochemical cell is disclosed with a precursor of a lithium metal oxide with the formula xLi2MnO3.(1?x)LiMn2?yMyO4 for 0<x<1 and 0?y<1 in which the Li2MnO3 and LiMn2?yMyO4 components have layered and spinel-type structures, respectively, and in which M is one or more metal cations. The electrode is activated by removing lithia, or lithium and lithia, from the precursor. A cell and battery are also disclosed incorporating the disclosed positive electrode.Type: GrantFiled: February 14, 2005Date of Patent: December 4, 2007Assignee: UChicago Argonne, LLCInventors: Michael M. Thackeray, Christopher S. Johnson, Naichao Li
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Patent number: 7288242Abstract: A lithium-containing complex oxide exhibits a high performance as a cathode active material of a lithium secondary cell or the like and having a high tap density. A granular lithium-containing complex oxide, such as lithium manganese complex oxide, is made up of “complex oxide grains produced by integrating lithium-rich material grains abnormally grown during a firing reaction with the surfaces of the base grains by sintering.” The number of complex oxide grains is not more than 50 per gram of the complex grains. A metal oxide such as manganese oxide and lithium carbonate not more than 5 ?m in average grain size are mixed by means of a mixer which grinds and mixes particles by using a shearing force and heated and fired at a warming rate of not more than 50° C./h., thus producing the lithium-containing complex oxide.Type: GrantFiled: January 15, 2003Date of Patent: October 30, 2007Assignee: Nikko Materials Co., Ltd.Inventors: Hiroshi Tasaki, Yoshio Kajiya
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Patent number: 7285357Abstract: An electrochemically active material resulting from substituting a portion of the nickel in a single-phase composite oxide of nickel and lithium of the LiNiO2 type, characterized in that the active material satisfies the formula: Li(M1(1-a-b-c)LiaM2bM3c)O2 in which: 0.02<a?0.25; 0?b<0.30; 0?c<0.30; (a+b+c)<0.50; M3 is at least one element selected from Al, B, and Ga; M2 is at least one element selected from Mg and Zn; and M1=Ni(1-x-y-z)CoxMnyM4z in which M4 is at least one element selected from Fe, Cu, Ti, Zr, V, Ga, and Si; and 0?x<0.70; 0.10?y<0.55; 0?z<0.30; and 0.20<(1-x-y-z); b+c+z>0; and in that said active material, regardless of its state of charge, satisfies the relationship: 0.40<R<0.90, where: R=(1-a-b-c)*[3-[(nU/nMA+dox)/(4-2b-3c)]*(2-b-2c)] in which: nU is the lithium content expressed in moles; nMA is the sum of the contents of Ni, Mn, Co, and M4 expressed in moles; and dox is the overall degree of oxidation of M1.Type: GrantFiled: October 8, 2004Date of Patent: October 23, 2007Assignee: SAFTInventors: Christian Jordy, Claudette Audry, Jean-Pierre Boeuve, Philippe Biensan, Andre Lecerf
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Patent number: 7285259Abstract: Preparation of sintering resistant hexaaluminates, AAl11O18, wherein A is an alka-line earth or rare earth metal, and more particularly lanthanum, by a combination of sol-gel and microemulsion techniques using a water soluble salt of A, and a method of forming spherical pellets thereof are disclosed.Type: GrantFiled: May 23, 2002Date of Patent: October 23, 2007Assignee: ECAPSInventors: Kjell Anflo, Johan Agrell, Anders Ersson, Sven Järås, Magali Boutonnet, Jesper Brandt, Ola Lyckfeldt
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Publication number: 20070218360Abstract: The present invention provides a lithium manganese-based composite oxide represented by the compositional formula: Li1+x(Mnl-m-nFemTin)1-xO2, wherein 0<x<?, 0?m?0.75, 0.01?n?0.75, and 0.01?m+n<1, and comprising a crystal phase of layered rock-salt type structure. The composite oxide is capable of maintaining an average discharge voltage of 3 V or more over long charge/discharge cycles. The composite oxide can be prepared using lower-cost starting materials, and exhibits improved charge/discharge characteristics over conventional low-cost positive electrode materials.Type: ApplicationFiled: March 20, 2007Publication date: September 20, 2007Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Mitsuharu Tabuchi, Yoko Nabeshima, Kazuaki Ado, Kuniaki Tatsumi, Tomonari Takeuchi
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Patent number: 7232527Abstract: A sintered body for thermistor device comprising: at least one element selected from elements of group 3 in a periodic table proviso that La is excluded; at least one element selected from elements of group 2 in a periodic table; Mn; Al; and oxygen, and being substantially free from any transition metal other than Mn and the at least one element selected from elements of group 3 in the periodic table.Type: GrantFiled: December 1, 2003Date of Patent: June 19, 2007Assignee: NGK Spark Plug Co., Ltd.Inventors: Takaaki Chosokabe, Masaki Iwaya, Naoki Yamada
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Patent number: 7232557Abstract: The invention describes a method of preparing magnetic ferrites from layered precursors in which Fe2+ is first introduced into the layers of layered double hydroxides (LDHs) in order to prepare Me-Fe2+—Fe3+ LDHs, and then by utilizing the easily oxidized nature of Fe2+, binary or multi-component ferrite materials containing Fe3+ in a single crystalline phase can be prepared. Values of the saturation magnetization of ferrites prepared by the method are significantly increased compared with ferrites prepared by traditional methods. Because the metal elements in the layered precursor have the characteristics of a high degree of dispersion, high activity and small particle size (average particle size 40-200 nm), no milling is required before calcination, thus simplifying the production process, shortening the production period, reducing capital investment in equipment and economizing on energy costs. In addition, the method does not corrode production equipment and does not pollute the environment.Type: GrantFiled: January 21, 2005Date of Patent: June 19, 2007Assignee: Beijing University of Chemical TechnologyInventors: Xue Duan, Feng Li, Junjie Liu
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Patent number: 7226698Abstract: Disclosed is a positive active material for a lithium rechargeable battery, a method of preparing the same, and a lithium rechargeable battery comprising the same. The positive active material has an I(003)/I(104) intensity ratio of between 1.15 to 1 and 1.21 to 1 in an X ray diffraction pattern using CuK? ray, wherein I(003)/I(004) is the X-ray diffraction intensity of the (003) plane divided by the X-ray diffraction intensity of the (104) plane. The compound is represented by the formula: LixNiyCozMn1?y?z?qXqO2 wherein x?1.05, 0<y<0.35, 0<z<0.35, X is Al, Mg, Sr, Ti or La, and 0?q<0.1.Type: GrantFiled: July 16, 2004Date of Patent: June 5, 2007Assignee: Samsung SDI Co., LtdInventors: Hyun-Sook Jung, Geun-Bae Kim
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Patent number: 7217474Abstract: A non-aqueous electrolyte secondary battery employing a positive electrode active material containing a compound represented by the general formula LixMyPO4, where 0<x?2 and 0.8?y?1.2, with M containing a 3d transition metal, where LixMyPO4 encompasses that with the grain size not larger than 10 ?m. The non-aqueous electrolyte secondary battery has superior cyclic characteristics and a high capacity.Type: GrantFiled: April 10, 2006Date of Patent: May 15, 2007Assignee: Sony CorporationInventors: Atsuo Yamada, Guohua Li, Hideto Azuma
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Patent number: 7217406Abstract: Granular secondary particles of a lithium-manganese composite oxide suitable for use in non-aqueous electrolyte secondary batteries showing high-output characteristics which are granular secondary particles made up of aggregated crystalline primary particles of a lithium-manganese composite oxide and have many micrometer-size open voids therein with a defined average diameter and total volume of open voids. A process for producing the granular secondary particles which includes spray-drying a slurry of at least a manganese oxide, a lithium source, and an agent for open-void formation to thereby granulate the slurry and then calcining the granules.Type: GrantFiled: February 20, 2003Date of Patent: May 15, 2007Assignee: Tosoh CorporationInventors: Koji Tsukuma, Minoru Kuniyoshi
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Patent number: 7211237Abstract: Single-phase lithium-transition metal oxide compounds containing cobalt, manganese and nickel can be prepared by wet milling cobalt-, manganese-, nickel- and lithium-containing oxides or oxide precursors to form a finely-divided slurry containing well-distributed cobalt, manganese, nickel and lithium, and heating the slurry to provide a lithium-transition metal oxide compound containing cobalt, manganese and nickel and having a substantially single-phase O3 crystal structure. Wet milling provides significantly shorter milling times than dry milling and appears to promote formation of single-phase lithium-transition metal oxide compounds. The time savings in the wet milling step more than offsets the time that may be required to dry the slurry during the heating step.Type: GrantFiled: November 26, 2003Date of Patent: May 1, 2007Assignee: 3M Innovative Properties CompanyInventors: Kevin W. Eberman, Jerome E. Scanlan, Chris J. Goodbrake
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Patent number: 7211238Abstract: Mesoporous aluminum oxides with high surface areas have been synthesized using inexpensive, small organic templating agents instead of surfactants. Optionally, some of the aluminum can be framework-substituted by one or more other elements. The material has high thermal stability and possesses a three-dimensionally randomly connected mesopore network with continuously tunable pore sizes. This material can be used as catalysts for dehydration, hydrotreating, hydrogenation, catalytic reforming, steam reforming, amination, Fischer-Tropsch synthesis and Diels-Alder synthesis, etc.Type: GrantFiled: March 8, 2004Date of Patent: May 1, 2007Assignee: ABB Lummus Global Inc.Inventors: Zhiping Shan, Jacobus Cornelius Jansen, Chuen Y. Yeh, Philip J. Angevine, Thomas Maschmeyer
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Patent number: 7157072Abstract: Provided is a cathode composition for lithium secondary battery that includes a lithium-chromium-titanium-manganese oxide that has the formula Li[Li(1-x)/3CrxTi(2/3)yMn2(1-x-y)/3]O2 where 0?x?0.3, 0?y?0.3 and 0.1?x+y?0.3, and layered a-LiFeO2 structure. A method of synthesizing the lithium-chromium-titanium manganese oxide includes preparing a first mixed solution by dispersing titanium dioxide (TiO2) in a mixed solution of chrome acetate (Cr3(OH)2(CH3CO2)7) and manganese acetate ((CH3CO2)2Mn.4H2O), adding a lithium hydroxide (LiOH) solution to the first mixed solution to obtain homogeneous precipitates, forming precursor powder that has the formula Li[Li(1-x)/3CrxTi(2/3)yMn2(1-x-y)/3]O2 where 0?x?0.3, 0?y?0.3 and 0.1?x+y?0.3 by heating the homogeneous precipitates, and heating the precursor powder to form oxide powder having a layered structure.Type: GrantFiled: July 6, 2004Date of Patent: January 2, 2007Assignee: Electronics and Telecommunications Research InstituteInventors: Xianglan Wu, Yong Joon Park, Kwang Sun Ryu, Soon Ho Chang
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Patent number: 7147834Abstract: A low-temperature hydrothermal reaction is provided to generate crystalline perovskite nanotubes such as barium titanate (BaTiO3) and strontium titanate (SrTiO3) that have an outer diameter from about 1 nm to about 500 nm and a length from about 10 nm to about 10 micron. The low-temperature hydrothermal reaction includes the use of a metal oxide nanotube structural template, i.e., precursor. These titanate nanotubes have been characterized by means of X-ray diffraction and transmission electron microscopy, coupled with energy dispersive X-ray analysis and selected area electron diffraction (SAED).Type: GrantFiled: August 11, 2004Date of Patent: December 12, 2006Assignee: The Research Foundation of State University of New YorkInventors: Stanislaus Wong, Yuanbing Mao
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Patent number: 7138209Abstract: Disclosed is a positive active material for a rechargeable lithium battery. The positive active material includes a core and a surface-treatment layer on the core. The core includes at least one lithiated compound and the surface-treatment layer includes at least one coating material selected from the group consisting of coating element included-hydroxides, oxyhydroxides, oxycarbonates, hydroxycarbonates and any mixture thereof.Type: GrantFiled: July 3, 2001Date of Patent: November 21, 2006Assignee: Samsung SDI Co., Ltd.Inventors: Ho-Jin Kweon, Joon-Won Suh
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Patent number: 7138102Abstract: A method for manufacturing a highly-crystallized double oxide powder composed of a single crystal phase which can be used as a phosphor material, a dielectric material, a magnetic material, etc. The method involves forming fine droplets of a raw material solution containing a raw material compound that includes at least one metal element and/or at least one semi-metal element that constitutes a double oxide, and heating these droplets at a high temperature, wherein the raw material solution is a solution which exhibits only one main peak attributable to the decomposition reaction of the raw material compound or a reaction intermediate thereof in a DTA profile when the solution is dried and solidified and subjected to TG-DTA measurement.Type: GrantFiled: July 1, 2003Date of Patent: November 21, 2006Assignee: Shoei Chemical Inc.Inventors: Yuji Akimoto, Kazuro Nagashima, Yoshikazu Nageno, Hidenori Ieda, Naoko Tanaka
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Patent number: 7135252Abstract: A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO2.(1-x)Li2M?O3 in which 0<x<1, and where M is more than one ion with an average trivalent oxidation state and with at least one ion being Ni, and where M? is one or more ions with an average tetravalent oxidation state. Complete cells or batteries are disclosed with anode, cathode and electrolyte as are batteries of several cells connected in parallel or series or both.Type: GrantFiled: October 17, 2003Date of Patent: November 14, 2006Assignee: UChicago Argonne LLCInventors: Michael M. Thackeray, Christopher S. Johnson, Khalil Amine, Jaekook Kim
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Patent number: 7132093Abstract: The oxide materials are of the class of ternary mesoporous mixed oxide materials including lanthanum, a metal M selected from the group consisting of Cr, Mn, Fe, Co, Ni, Cu and Zn, and zirconium or cerium such a mesoporous La—Co—Zr mixed oxide material designated as Meso LCZ[x] where x is the atomic ratio (La+Co)/La+Co+Zr. They are useful as catalysts since they show high activities for hydrocarbon oxidation and good resistance against poisoning agents. These highly ordered mesoporous mixed oxides are synthesized by: preparing an amorphous solution of a La-M precursor and adding a salt of zirconium or cerium thereto; acidifying the amorphous solution in the presence of a surfactant under conditions to obtain a clear homogeneous solution; adjusting pH of the solution under conditions to form a solid precipitate; separating the solution and surfactant from the precipitate; and calcinating the precipitate.Type: GrantFiled: June 5, 2003Date of Patent: November 7, 2006Assignee: Université LavalInventors: Serge Kaliaguine, Trong On Do
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Patent number: 7118728Abstract: A method for making ferrite powder may include providing ferrite feed materials in a form of particles having different sizes and irregular shapes, and exposing the ferrite feed materials to a plasma to provide a more spherical shape to irregularly shaped particles to thereby make the ferrite powder. An apparatus for making ferrite powder may include a feeder for ferrite feed materials and a plasma generator for exposing the ferrite feed materials to a plasma.Type: GrantFiled: May 7, 2003Date of Patent: October 10, 2006Assignee: Steward Advanced Materials, Inc.Inventors: Henry G. Paris, Danny R. Smith
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Patent number: 7105138Abstract: The present invention relates to the macroporous manganese oxide material having ferromagnetic property and a method of preparing the same, more particularly to the macroporous ferromagnetic manganese oxide having three-dimensionally ordered nanopores, which is prepared by aligning colloidal polymer particles with an average diameter of a few hundred nanometers in 3D, infiltrating a solution of the precursor compound capable of forming manganese oxide represented by the following Chemical Formula 1 into interstices of the colloidal template and heating in an oxygen atmosphere to decompose and remove the polymer template, and a method for preparing the same: La1-xCax-ySryMnO3 ??(1) wherein 0.25<x<0.35 and 0<y?0.35.Type: GrantFiled: April 16, 2004Date of Patent: September 12, 2006Assignee: Korea Research Institute of Standards and ScienceInventors: Nam Hwi Hur, Young Nam Kim, Eun Ok Chi, Jin Cheol Kim, Eun Kwang Lee
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Patent number: 7081235Abstract: The cathode of a primary alkaline battery is composed of electrode grade manganese dioxide containing Zr.Type: GrantFiled: June 1, 2001Date of Patent: July 25, 2006Assignee: Eveready Battery Company, Inc.Inventors: Frank H. Feddrix, Robert M. Estanek, Scott W. Donne
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Patent number: 7078127Abstract: A method for producing a positive electrode material adapted to the Li-ion secondary batteries is disclosed. The produced material has the following formula (I), Li1+xMn2?yMyO4 ??(I) wherein M is Mg, Al, Cr, Fe, Co, or Ni; 0?x?0.4, and 0?y?0.2. The method is achieved by co-precipitating a gel salts with an organic acid. First, salts of Li, Mn and M are mixed with at least a solvent to form an initial solution. The mole ratio of Li, Mn and M ions in their respective salts is (1+x):(2?y):y. Next, at least a chelate is added into the initial solution to form a suspension, which is then filtered to obtain a co-precipitate. Finally, the co-precipitate is calcined and heated to obtain the final product.Type: GrantFiled: June 11, 2003Date of Patent: July 18, 2006Assignee: Tatung Co., Ltd.Inventors: She-Huang Wu, Yung-Jen Lin, Mu-Rong Yang, Wen-Jen Liu, Yi-Shiuan Chen
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Patent number: 7064238Abstract: A process is provided for converting an alkane to an oxygenated product by passing an alkane gas over a first fixed bed containing a higher valence bromide salt to produce an alkyl bromide, a hydrobromic acid, and a lower valence bromide salt. The alkyl bromide and hydrobromic acid are conveyed as a gas to a second fixed bed containing a metal oxide and are passed over the second fixed bed to produce the first bromide salt and the oxygenated product. The metal oxide in the second fixed bed is regenerated by passing oxygen over the second fixed bed producing the metal oxide and bromine. The bromine is conveyed as a gas from the second fixed bed to the first fixed bed. The first bromide salt of the first fixed bed is regenerated by passing the bromine over the first fixed bed producing the first bromide salt.Type: GrantFiled: January 2, 2004Date of Patent: June 20, 2006Assignee: Marathon Oil CompanyInventor: John J. Waycuilis
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Patent number: 7056486Abstract: The present invention relates to lithium manganese complex oxide with a spinel structure used as an active material of a lithium or lithium ion secondary battery. Specifically, the present invention relates to a process for preparing lithium manganese complex oxide having improved cyclic performance at a high temperature above room temperature, and a lithium or lithium ion secondary battery using the oxide prepared according to said process as a cathode active material.Type: GrantFiled: January 19, 2001Date of Patent: June 6, 2006Assignee: LG Chemical Co., Ltd.Inventors: Hong-Kyu Park, Yong-Hoon Kwon, Joon-Sung Bae, Ki-Young Lee
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Patent number: 7049031Abstract: A positive electrode for a non-aqueous lithium cell comprising a LiMn2?xMxO4 spinel structure in which M is one or more metal cations with an atomic number less than 52, such that the average oxidation state of the manganese ions is equal to or greater than 3.5, and in which 0?x?0.15, having one or more lithium spine oxide LiM?2O4 or lithiated spinel oxide Li1+yM?2O4 compounds on the surface thereof in which M? are cobalt cations and in which 0?y?1.Type: GrantFiled: January 28, 2003Date of Patent: May 23, 2006Assignee: The University of ChicagoInventors: Christopher S. Johnson, Michael M. Thackeray, Arthur J. Kahaian
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Patent number: 7033566Abstract: A photocatalyst including a metal oxide semiconductor represented by the formula: In1?xMxAO4 wherein M represents a transition metal element, A represents an element belonging to the Group 5a of the Periodic Table and x is a number greater than 0 but smaller than 1.Type: GrantFiled: July 9, 2002Date of Patent: April 25, 2006Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Hironori Arakawa, Zhigang Zou, Kazuhiro Sayama
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Patent number: 7033555Abstract: A low temperature contaminant limiting process for lithiating hydroxides and forming lithiated metal oxides of suitable crystalinity in-situ. M(OH)2 is added to an aqueous solution of LiOH. An oxidant is introduced into the solution which is heated below about 150° C. and, if necessary, agitated. M may be selected from cobalt, nickel and manganese. The resultant LiMO2 becomes crystallized in-situ and is subsequently removed.Type: GrantFiled: May 6, 2003Date of Patent: April 25, 2006Assignee: Inco LimitedInventors: Feng Zou, Mohammad Jahangir Hossain, Juraj Babjak, Quan Min Yang, Samuel Walton Marcuson