Vanadium Compound Patents (Class 252/520.4)
  • Patent number: 9029018
    Abstract: A method for making a lithium battery cathode material is disclosed. A mixed solution including a solvent, an iron salt material, a vanadium source material and a phosphate material is provided. An alkaline solution is added in the mixed solution to make the mixed solution have a pH value ranging from about 1.5 to 5. The iron salt, the vanadium source material and the phosphate material react with each other to form a plurality particles of iron phosphate precursor doped with vanadium which are added in a mixture of a lithium source solution and a reducing agent to form a slurry of lithium iron phosphate precursor doped with vanadium. The slurry of lithium iron phosphate precursor doped with vanadium is heat-treated.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: May 12, 2015
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Gai Yang, Chang-Yin Jiang, Jian Gao, Jie-Rong Ying, Jian-Jun Li, Xiang-Ming He
  • Publication number: 20150079863
    Abstract: The present disclosure is directed to composite or articles for protective clothing, which include an anti-static layer. The antistatic layer can 1), include an antistatic agent comprising an electronically conductive material, and the antistatic layer can have a visible light transmission of at least 70%; 2) the anti-static layer can have a surface electrical resistivity (SER), and/or a water electrode resistivity (WER) of no greater than 1011 ohms/square and a visible light transmission of at least 70%; or 3) the anti-static layer has an electrical resistivity, measured in ohms/square, which varies by no more than 1.5 order of magnitude over a range of relative humidity of 5% to 95%, and a visible light transmission of at least 70%.
    Type: Application
    Filed: August 8, 2014
    Publication date: March 19, 2015
    Inventors: Debasis Majumdar, Ryan C. Hirschey, Jenna Reynolds
  • Patent number: 8951436
    Abstract: A lithium ion secondary battery has a high cycle retention rate, and has its battery capacity increased. A positive electrode active material is used which includes a crystal phase having a structure formed by collecting a plurality of crystallites, and powder particles containing amorphous phases and formed between the crystallites. The amorphous phases and contain one or more kinds of metal oxides selected from the group consisting of vanadium oxide, iron oxide, manganese oxide, nickel oxide and cobalt oxide. The crystal phase and the amorphous phase and are capable of intercalation and deintercalation of lithium ions.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: February 10, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Yuji Hashiba, Kei Yoshimura, Shinichi Tachizono, Takashi Naito, Takuya Aoyagi, Tadashi Fujieda
  • Patent number: 8945436
    Abstract: Provided is a conductive paste which contains an inexpensive metal, such as copper or aluminum, as an electrode wiring material and has oxidation resistance that enables the paste to withstand a high-temperature process performed in an oxidizing atmosphere and an electronic part equipped with electrode wiring formed from the paste. The electronic part in accordance with the present invention is equipped with electrode wiring that comprises a conductive glass phase containing transition metals and phosphorus, metal particles, and none of the substances prohibited by the RoHS directive. The electronic part is characterized in that each of the transition metals contained in the conductive glass phase is present in the state of having a plurality of oxidation numbers and that the proportion of the atoms which have the largest oxidation number for each transition metal satisfies a given relationship.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: February 3, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Takuya Aoyagi, Takashi Naito, Hiroki Yamamoto, Takahiko Kato
  • Publication number: 20140272581
    Abstract: A method of forming an electrode active material by reacting a metal fluoride and a reactant. The reactant can be a metal oxide, metal phosphate, metal fluoride, or a precursors expected to decompose to oxides. The method includes a milling step and an annealing step. The method can alternately include a solution coating step. Also included is the composition formed following the method.
    Type: Application
    Filed: March 19, 2014
    Publication date: September 18, 2014
    Applicant: Wildcat Discovery Technologies, Inc.
    Inventors: Steven Kaye, David Keogh, Cory O'Neill
  • Publication number: 20140231725
    Abstract: Fabrication of doped AlN crystals and/or AlGaN epitaxial layers with high conductivity and mobility is accomplished by, for example, forming mixed crystals including a plurality of impurity species and electrically activating at least a portion of the crystal.
    Type: Application
    Filed: March 26, 2014
    Publication date: August 21, 2014
    Inventors: Glen A. Slack, Leo J. Schowalter
  • Publication number: 20140220362
    Abstract: The present invention provides an electrochromic nanocomposite film. In an exemplary embodiment, the electrochromic nanocomposite film, includes (1) a solid matrix of oxide based material and (2) transparent conducting oxide (TCO) nanostructures embedded in the matrix. In a further embodiment, the electrochromic nanocomposite film farther includes a substrate upon which the matrix is deposited. The present invention also provides a method of preparing an electrochromic nanocomposite film.
    Type: Application
    Filed: July 24, 2012
    Publication date: August 7, 2014
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Delia Milliron, Anna Llordes, Raffaella Buonsanti, Guillermo Garcia
  • Patent number: 8785045
    Abstract: An active material comprises a core particle containing LiCo(1-x)MxO2 and/or Li(Mn(1-y)My)2O4, and a coating part covering at least part of a surface of the core particle, while the coating part contains LiVOPO4. Here, M is at least one element selected from the group consisting of Al, Mg, and transition elements, 0.95?x?0, 0.2?y?0, and V in LiVOPO4 may partly be substituted by at least one element selected from the group consisting of Ti, Ni, Co, Mn, Fe, Zr, Cu, Zn, and Yb.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: July 22, 2014
    Assignee: TDK Corporation
    Inventor: Tadashi Suzuki
  • Publication number: 20140178763
    Abstract: A composite material comprising graphene oxide and an electrochemically active ingredient, in particular H4?xV3O8 with x ranging from 0.1 to 2.2, as well as a method for its manufacture were developed. The composite material is suitable for being used as electrode in an electrochemical cell.
    Type: Application
    Filed: December 9, 2013
    Publication date: June 26, 2014
    Applicant: Belenos Clean Power Holding AG
    Inventor: Yoann METTAN
  • Patent number: 8696949
    Abstract: A particulate mixture which can be used as a precursor of lithium transition metal silicate-type compound of small particle size and low crystallinity, is provided. It is a mixture of silicon oxide particulates, transition metal oxide particulates, and lithium transition metal silicate particulates, and its powder X-ray diffraction measurement shows diffraction peaks near 2?=33.1° and near 2?=35.7°, and said silicon oxide particulates and said transition metal oxide particulates are amorphous, and said lithium transition metal silicate particulates are in a microcrystalline or amorphous state.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: April 15, 2014
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Michio Ohkubo, Takeshi Yagi, Michihiro Shimada, Naoki Uno, Yosuke Hirayama, Takeshi Nishimura, Toshio Tani
  • Patent number: 8652347
    Abstract: Provided are new compositions of ruthenates in the pervoskite and layered pervoskite family, wherein the ruthenate compositions exhibit large magnetoresistance (MR) and electric-pulse-induced resistance (EPIR) switching effects, the latter observable at room temperature. This is the first time large MR and EPIR effects have been shown together in ruthenate compositions. Further provided are methods for synthesizing the class of ruthenates that exhibits such properties, as well as methods of use therefor in electromagnetic devices, thin films, sensors, semiconductors, insulators and the like.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: February 18, 2014
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: I-Wei Chen, Alexander Mamchik
  • Publication number: 20140004417
    Abstract: An active material capable of improving the discharge capacity of a lithium ion secondary battery is provided. The active material of the present invention includes LiVOPO4 and one or more metal elements selected from the group consisting of Al, Nb, Ag, Mg, Mn, Fe, Zr, Na, K, B, Cr, Co, Ni, Cu, Zn, Si, Be, Ti, and Mo.
    Type: Application
    Filed: March 30, 2012
    Publication date: January 2, 2014
    Applicant: TDK CORPORATION
    Inventors: Atsushi Sano, Keitaro Otsuki, Tomohiko Kato, Akiji Higuchi
  • Patent number: 8617433
    Abstract: A conductive sintered oxide including: a first crystal phase represented by RE14Al2O9 and a second crystal phase having a perovskite structure represented by (RE21-cSLc)(AlxM1y)O3. RE1 is a first element group consisting of Yb and/or Lu and at least one element selected from Group IIIA elements excluding Yb, Lu and La. RE2 is a second element group consisting of at least one element selected from Group IIIA elements excluding La and including at least one of the elements constituting the first element group RE1. SL is an element group consisting of at least one of Sr, Ca and Mg and which includes Sr as a main element, and M1 is an element group consisting of at least one element selected from Groups IVA, VA, VIA, VIIA and VIII excluding Cr. The coefficient c is in the range of 0.18<c<0.50, and the coefficients x and y are in the range of 0.95?x+y?1.1.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: December 31, 2013
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Hiroshi Watanabe, Yasayuki Okimura, Shinji Ban, Takeshi Mitsuoka
  • Patent number: 8617432
    Abstract: A sintered electroconductive oxide forming a thermistor element has a first crystal phase having a composition represented by RE14Al2O9 and a second crystal phase having a perovskite structure represented by (RE21-aSLa)MO3. The factor a of the second crystal phase is: 0.18<a<0.50, wherein RE1 represents at least one of Yb and Lu and at least one species selected from among group 3A elements excluding Yb, Lu, and La; RE2 represents at least one species selected from among group 3A elements excluding La and which contains at least one species selected from the group RE1; M represents Al and at least one species selected from group 4A to 7A, and 8 elements; and SL represents Sr, Ca, and Mg, with at least Sr being included at a predominant proportion by mole.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: December 31, 2013
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Yasuyuki Okimura, Shinji Ban, Hiroshi Watanbe, Takeshi Mitsuoka
  • Patent number: 8603367
    Abstract: The invention provides electrode active materials comprising lithium or other alkali metals, manganese, a +3 oxidation state metal ion, and optionally other metals, and a phosphate moiety. Such electrode active materials include those of the formula: AaMnbMIcMIIdMIIIePO4 wherein (a) A is selected from the group consisting of Li, Na, K, and mixtures thereof, and 0<a?1; (b) 0<b?1; (c) MI is a metal ion in the +3 oxidation state, and 0<c<0.5; (d) MII is metal ion, a transition metal ion, a non-transition metal ion or mixtures thereof, and 0?d<1; (e) MIII is a metal ion in the +1 oxidation state and 0<e<0.5; and wherein A, Mn, MI, MII, MIII, PO4, a, b, c, d and e are selected so as to maintain electroneutrality of said compound.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: December 10, 2013
    Assignee: Valence Technology, Inc.
    Inventors: Haitao Huang, Yazid Saidi
  • Patent number: 8562868
    Abstract: The present invention is related to ternary metal transition metal non-oxide nano-particle compositions, methods for preparing the nano-particles, and applications relating in particular to the use of said nano-particles in dispersions, electrodes and capacitors. The nano-particle compositions of the present invention can include a precursor which includes at least one material selected from the group consisting of alkoxides, carboxylates and halides of transition metals, the material including transition metal(s) selected from the group consisting of vanadium, niobium, tantalum, tungsten and molybdenum.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: October 22, 2013
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Prashant Nagesh Kumta, Amit Paul, Prashanth Hanumantha Jampani
  • Publication number: 20130273425
    Abstract: This invention relates generally to electrode materials, electrochemical cells employing such materials, and methods of synthesizing such materials. The electrode materials have a crystal structure with a high ratio of Li to metal M, which is found to improve capacity by enabling the transfer of a greater amount of lithium per metal, and which is also found to improve stability by retaining a sufficient amount of lithium after charging. Furthermore, synthesis techniques are presented which result in improved charge and discharge capacities and reduced particle sizes of the electrode materials.
    Type: Application
    Filed: March 18, 2013
    Publication date: October 17, 2013
    Inventors: Gerbrand Ceder, Anubhav Jain, Geoffroy Hautier, Jae Chul Kim, Byoungwoo Kang, Robert Daniel
  • Publication number: 20130260253
    Abstract: A positive electrode material for a lithium ion secondary battery contains a first compound represented by Li3V2(PO4)3 and one or more second compounds selected from vanadium oxide and lithium vanadium phosphate.
    Type: Application
    Filed: March 18, 2013
    Publication date: October 3, 2013
    Inventors: Keitaro OTSUKI, Atsushi SANO, Tomohiko KATO
  • Publication number: 20130244109
    Abstract: The present technology is able to provide a solid electrolyte cell that uses a positive electrode active material which has a high ionic conductivity in an amorphous state, and a positive electrode active material which has a high ionic conductivity in an amorphous state. The solid electrolyte cell has a stacked body, in which, a positive electrode side current collector film, a positive electrode active material film, a solid electrolyte film, a negative electrode potential formation layer and a negative electrode side current collector film are stacked, in this order, on a substrate. The positive electrode active material film is made up with an amorphous-state lithium phosphate compound that contains Li; P; an element M1 selected from Ni, Co, Mn, Au, Ag, and Pd; and O, for example.
    Type: Application
    Filed: December 2, 2011
    Publication date: September 19, 2013
    Applicant: Sony Corporation
    Inventors: Yuichi Sabi, Susumu Sato, Saori Tsuda
  • Patent number: 8529802
    Abstract: Disclosed is a solution composition for forming a thin film transistor including a zinc-containing compound, an indium-containing compound, and a compound including at least one metal or metalloid selected from the group consisting of hafnium (Hf), magnesium (Mg), tantalum (Ta), cerium (Ce), lanthanum (La), silicon (Si), germanium (Ge), vanadium (V), niobium (Nb), and yttrium (Y). A method of forming a thin film by using the solution composition, and a method of manufacturing thin film transistor including the thin film are also disclosed.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: September 10, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Baek Seon, Sang-Yoon Lee, Jeong-il Park, Myung-Kwan Ryu, Kyung-Bae Park
  • Patent number: 8507135
    Abstract: Nanocomposites of conductive, nanoparticulate polymer and electronically active material, in particular PEDOT and LiFePO4, were found to be significantly better compared to bare and carbon coated LiFePO4 in carbon black and graphite filled non conducting binder. The conductive polymer containing composite outperformed the other two samples. The performance of PEDOT composite was especially better in the high current regime with capacity retention of 82% after 200 cycles. Further improvement can be obtained if the porosity of the nanocomposites is enhanced. Hence an electrode produced from a composite made of conductive, nanoparticulate polymer, electronically active material, and sacrificial polymer, wherein the sacrificial polymer has been removed leaving pores has improved electrolyte and ion diffusion properties allowing the production of thicker electrodes.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: August 13, 2013
    Assignee: The Swatch Group Research and Development Ltd
    Inventor: Nathalie Brebner-Grupp
  • Patent number: 8455139
    Abstract: A method for making a lithium battery cathode composite is provided. First, a plurality of lithium vanadium phosphate particles is provided. A lithium iron phosphate layer is then formed on an outer surface of each of the lithium vanadium phosphate particle by coating a lithium iron phosphate precursor slurry, thereby forming the lithium battery cathode composite.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: June 4, 2013
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Gai Yang, Chang-Yin Jiang, Jian Gao, Jie-Rong Ying, Jian-Jun Li, Xiang-Ming He
  • Publication number: 20130115515
    Abstract: Provided herein is an electrode active material comprising a lithium metal oxide and an overcharge protection additive having an operating voltage higher than the operating voltage of the lithium metal oxide.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 9, 2013
    Applicant: JOHNSON CONTROLS TECHNOLOGY LLC
    Inventor: JOHNSON CONTROLS TECHNOLOGY LLC
  • Patent number: 8394291
    Abstract: 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: Grant
    Filed: December 17, 2009
    Date of Patent: March 12, 2013
    Assignee: Phillips 66 Company
    Inventors: Zhenhua Mao, Mark W. Carel, Daniel H. Irvin, David W. Westphal
  • Publication number: 20130052529
    Abstract: A particulate mixture etc., which can be used as a precursor of lithium transition metal silicate-type compound of small particle size and low crystallinity, is provided. Further, a cathode active material that can undergo charge-and-discharge reaction in room temperature, and comprises lithium transition metal silicate-type compound, is provided. It is a mixture of silicon oxide particulates, transition metal oxide particulates, and lithium transition metal silicate particulates, and its powder X-ray diffraction measurement shows diffraction peaks near 2?=33.1° and near 2?=35.7°, and said silicon oxide particulates and said transition metal oxide particulates are amorphous, and said lithium transition metal silicate particulates are in a microcrystalline or amorphous state. Furthermore, a cathode active material obtained by grinding the active material aggregate obtained by heat-treating this particulate mixture is provided.
    Type: Application
    Filed: August 28, 2012
    Publication date: February 28, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Michio OHKUBO, Takeshi YAGI, Michihiro SHIMADA, Naoki UNO, Yosuke HIRAYAMA, Takeshi NISHIMURA, Toshio TANI
  • Publication number: 20120295163
    Abstract: An electric storage device is provided with a positive electrode having a positive-electrode mixture layer including a positive-electrode active material. The positive-electrode active material includes a lithium-vanadium-phosphate from 8% to 70% by mass and a lithium-nickel complex oxide from 20% to 82% by mass. A coating concentration of the positive-electrode mixture layer is from 4 mg/cm2 to 20 mg/cm2. The lithium-nickel complex oxide includes a nickel element from 0.3 mol to 0.8 mol with respect to a lithium element of 1 mol.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 22, 2012
    Applicants: NIPPON CHEMICAL INDUSTRIAL CO.,LTD., FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideo Yanagita, Kazuki Takimoto, Takahito Sakuraba, Ken Baba, Yasuyuki Kiya, Tsutomu Kikuchi
  • Publication number: 20120267580
    Abstract: Provided herein are electroactive agglomerated particles, which comprise nanoparticles of a first electroactive material and nanoparticles of a second electroactive materials, and processes of preparation thereof.
    Type: Application
    Filed: May 13, 2012
    Publication date: October 25, 2012
    Applicant: AMERICAN LITHIUM ENERGY CORP.
    Inventors: Jiang Fan, Robert M. Spotnitz
  • Publication number: 20120270109
    Abstract: Amorphous or partially amorphous nanoscale ion storage materials are provided. For example, lithium transition metal phosphate storage compounds are nanoscale and amorphous or partially amorphous in an as-prepared state, or become amorphous or partially amorphous upon electrochemical intercalation or de-intercalation by lithium. These nanoscale ion storage materials are useful for producing devices such as high energy and high power storage batteries.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 25, 2012
    Applicant: A123 SYSTEMS, INC.
    Inventors: Yet-Ming CHIANG, Anthony E. PULLEN, Nonglak MEETHONG
  • Patent number: 8293143
    Abstract: A method to prepare a thin ceramic or metallic solid-state composition comprising three phases: a material (A), a material (B), and pores, wherein the porous matrix of material (A) has a porosity gradient in the range of about 0% to about 80%, and wherein the pores are partially or completely filled with material (B). Various compositions and methods of use for the prepared composition are also disclosed.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: October 23, 2012
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Thierry Chartier, Francois Guillotin
  • Publication number: 20120153231
    Abstract: A cathode material structure and a method for preparing the same are described. The cathode material structure includes a material body and a composite film coated thereon. The material body has a particle size of 0.1-50 ?m. The composite film has a porous structure and electrical conductivity.
    Type: Application
    Filed: March 14, 2011
    Publication date: June 21, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Tsung-Hsiung Wang, Jing-Pin Pan, Chung-Liang Chang, Yu-Ling Lin
  • Patent number: 8197721
    Abstract: The invention provides improved conditions for atmospheric pressure chemical vapor deposition (APCVD) of vanadium (IV) oxide. Specifically, higher quality vanadium oxide (particularly in the form of films) can be obtained by employing concentrations of precursors in the APCVD reaction which are substantially less than those used previously. These conditions improve the reproducibility of the films obtained by APCVD and also prevent particulate formation in the manufacturing apparatus, which in previous work had caused blockages. The films obtained have improved visual appearance, especially color, and/or have improved adhesion to a substrate. The obtained films also show a greater difference in transmission above and below the switching temperature than previous films. The invention also provides doped vanadium oxide, particularly with tungsten. Substrates (e.g. glass substrates) coated with a film of vanadium oxide are also provided.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: June 12, 2012
    Assignee: UCL Business PLC
    Inventors: Christopher Stuart, Ivan Paul Parkin
  • Publication number: 20120107491
    Abstract: Thin films containing a transparent conducting oxide and a high permittivity material are disclosed. Exemplary thin films may exhibit increased transmission in the visible-to-near infrared (vis-NIR) spectrum without a decrease in electrical conductivity compared to the thin film without the high permittivity material. Methods for making thin films having enhanced optical properties without substantially decreased electrical quality are also disclosed.
    Type: Application
    Filed: January 5, 2012
    Publication date: May 3, 2012
    Applicant: ALLIANCE FOR SUSTAINABLE ENERGY, LLC
    Inventors: Xiaonan Li, James Burst, Timothy A. Gessert
  • Publication number: 20120080649
    Abstract: A process for preparing transition metal particles with a gradient in composition from the core of the particle to the outer layers. In particular, the process involves contacting a first transition metal solution with a second transition metal solution to form a transition metal source solution under specific process conditions. The transition metal particles with desired composition gradients are precipitated from the transition metal source solution. The transition metal particles may be combined with metals such as lithium to form cathode active metal oxides.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 5, 2012
    Inventors: Gary M. Koenig, JR., Ilias Belharouak, Khalil Amine, Haixia Deng
  • Publication number: 20120077082
    Abstract: Electrodes for lithium batteries are coated via an atomic layer deposition process. The coatings can be applied to the assembled electrodes, or in some cases to particles of electrode material prior to assembling the particles into an electrode. The coatings can be as thin as 2 ?ngstroms thick. The coating provides for a stable electrode. Batteries containing the electrodes tend to exhibit high cycling capacities.
    Type: Application
    Filed: June 13, 2011
    Publication date: March 29, 2012
    Inventors: Lee Se-Hee, Steven M. George, Andrew S. Cavanagh, Jung Yoon Seok, Anne C. Dillon
  • Publication number: 20120043513
    Abstract: A conductive sintered oxide including: a first crystal phase represented by RE14Al2O9 and a second crystal phase having a perovskite structure represented by (RE21-cSLc)(AlxM1y)O3. RE1 is a first element group consisting of Yb and/or Lu and at least one element selected from Group IIIA elements excluding Yb, Lu and La. RE2 is a second element group consisting of at least one element selected from Group IIIA elements excluding La and including at least one of the elements constituting the first element group RE1. SL is an element group consisting of at least one of Sr, Ca and Mg and which includes Sr as a main element, and M1 is an element group consisting of at least one element selected from Groups IVA, VA, VIA, VIIA and VIII excluding Cr. The coefficient c is in the range of 0.18<c<0.50, and the coefficients x and y are in the range of 0.95?x+y?1.1.
    Type: Application
    Filed: August 16, 2011
    Publication date: February 23, 2012
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Hiroshi WATANABE, Yasuyuki OKIMURA, Shinji BAN, Takeshi MITSUOKA
  • Publication number: 20120040192
    Abstract: The present invention provides a method to effectively inhibit the oxidization of VO(acac)2 in solution for months. It is believed that VO(acac)2 forms a ?-complex with as many as three allylic alcohols which precludes reaction with any oxygen in the system. Although saturated and homo-allylic alcohols were also tested, this effect appears only in the allylic-alcohol based solutions. This ability to inhibit oxidation of VO(acac)2 allows these solutions to be used for making thermochromic VO2 film much more easily and economically as it avoids the requirement of operating under low oxygen level conditions. Thus the present invention provides a method of stabilizing vanadium oxyacetylacetonate (VO(acac)2) in solution against oxidation for extended periods of time, comprising the steps of mixing the oxyacetylacetonate precursor in an allylic alcohol prior to spin-coating for VO2 film formation. The allylic alcohol may be (?-methallyl alcohol.
    Type: Application
    Filed: October 20, 2009
    Publication date: February 16, 2012
    Applicant: The University of Western Ontario
    Inventors: Robert H. Lipson, Cheng Lu
  • Publication number: 20120032165
    Abstract: Provided are an aqueous solution composition for fluorine doped metal oxide semiconductor, a method for manufacturing a fluorine doped metal oxide semiconductor using the same, and a thin film transistor including the same. The aqueous solution composition for fluorine doped metal oxide semiconductor includes: a fluorine compound precursor made of one or two or more selected from the group consisting of a metal compound containing fluorine and an organic material containing fluorine; and an aqueous solution containing water or catalyst. The method for manufacturing a fluorine doped metal oxide semiconductor, includes: preparing an aqueous solution composition for fluorine doped metal oxide semiconductor, coating a substrate with the aqueous solution composition; and performing heat treatment on the coated substrate to form the fluorine doped metal oxide semiconductor.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 9, 2012
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Byeong-Soo BAE, Jun-Hyuck JEON
  • Publication number: 20110300292
    Abstract: A method for making a lithium battery cathode composite is provided. First, a plurality of lithium vanadium phosphate particles is provided. A lithium iron phosphate layer is then formed on an outer surface of each of the lithium vanadium phosphate particle by coating a lithium iron phosphate precursor slurry, thereby forming the lithium battery cathode composite.
    Type: Application
    Filed: December 16, 2010
    Publication date: December 8, 2011
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: GAI YANG, CHANG-YIN JIANG, JIAN GAO, JIE-RONG YING, JIAN-JUN LI, XIANG-MING HE
  • Publication number: 20110195185
    Abstract: Nanocomposite materials comprising a SiGe matrix with silicide and/or germanide nanoinclusions dispersed therein, said nanocomposite materials having improved thermoelectric energy conversion capacity.
    Type: Application
    Filed: July 11, 2008
    Publication date: August 11, 2011
    Inventors: Natalio Mingo Bisquert, Nobuhiko Kobayashi, Marc Plissonnier, Ali Shakouri
  • Publication number: 20110143020
    Abstract: A cathode active material composition of a cathode of a lithium battery includes a conducting agent, a binder, and a cathode active material coated on one surface of a current collector, wherein the cathode active material composition is coated with a vanadium oxide.
    Type: Application
    Filed: February 22, 2011
    Publication date: June 16, 2011
    Inventors: Ky-sung Park, Dong-min Im
  • Publication number: 20110084238
    Abstract: The present invention relates to a process for preparing lithium vanadium oxides and also a process for producing mixtures of a lithium vanadium oxide and at least one electrically conductive material. Furthermore, the invention relates to the use of lithium vanadium oxides or of mixtures of a lithium vanadium oxide and at least one electrically conductive material for producing cathodes for batteries and in electrochemical cells. In addition, the invention relates to cathodes which comprise a lithium vanadium oxide or a mixture of a lithium vanadium oxide and at least one electrically conductive material.
    Type: Application
    Filed: May 28, 2009
    Publication date: April 14, 2011
    Applicant: BASF SE
    Inventors: Hartmut Hibst, Kirill Bramnik, Julian Proelss
  • Patent number: 7906239
    Abstract: A cathode active material capable of improving chemical stability, a method for producing the same, and a nonaqueous electrolyte secondary battery using the same which has high capacity and good charge-discharge cycling characteristics is provided. The cathode has a cathode active material. The cathode active material includes a coating layer formed on at least a part of the composite oxide particle, the coating layer including an oxide including lithium and an oxide including a coating element of nickel, or nickel and manganese, and a surface layer formed on at least a part of the coating layer and containing molybdenum.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: March 15, 2011
    Assignee: Sony Corporation
    Inventors: Haruo Watanabe, Kenji Ogisu, Tomoyo Ooyama, Masanori Soma
  • Publication number: 20110052988
    Abstract: Improved positive electrode material and methods for making the same are described. Lithium-iron-manganese phosphate materials, doped with one or more dopant Co, Ni, V, and Nb, and methods for making the same are described. The improved positive electrode material of the present invention is capable of exhibiting improved energy density and/or specific capacity for use in wide range of applications. In certain embodiments, energy density of greater than 340 mWh/g is possible.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 3, 2011
    Applicant: A123 Systems, Inc.
    Inventors: Larry W. BECK, Chuanjing Xu, Young-ll Jang
  • Publication number: 20110048538
    Abstract: A suspension or solution for an organic optoelectronic device is disclosed. The composition of the suspension or solution includes at least one kind of micro/nano transition metal oxide and a solvent. The composition of the suspension or solution can selectively include at least one kind of transition metal oxide ions or a precursor of transition metal oxide. Moreover, the method of making and applications of the suspension or solution are also disclosed.
    Type: Application
    Filed: October 6, 2009
    Publication date: March 3, 2011
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: JING-SHUN HUANG, CHING-FUH LIN
  • Publication number: 20110049443
    Abstract: The present application relates to a process for the preparation of compounds of general formula (I) Lia-bM1bFe1-cM2cPd-eM3eOx (I), wherein M1, M2, M3, a, b, c, d, e and x: M1: Na, K, Rb and/or Cs, M2: Mn, Mg, Ca, Ti, Co, Ni, Cr, V, M3: Si, S, a: 0.8-1.9, b: 0-0.3, c: 0-0.9, d: 0.8-1.9, e: 0-0.5, x: 1.
    Type: Application
    Filed: April 16, 2009
    Publication date: March 3, 2011
    Applicant: BASF SE
    Inventors: Hartmut Hibst, Brian Roberts, Jordan Keith Lampert, Kirill Bramnik
  • Publication number: 20110001094
    Abstract: Disclosed is an electroconductive material which contains at least a vanadium oxide and a phosphorus oxide, and has a crystalline structure composed of a crystalline phase and an amorphous phase, in which the crystalline phase contains a monoclinic vanadium-containing oxide, and a volume of the crystalline phase is larger than that of the amorphous phase. The electroconductive material has a reduced specific resistance and has improved functions as an electrode material, a solid-state electrolyte, or a sensor such as a thermistor.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 6, 2011
    Inventors: Yuji Hashiba, Shinichi Tachizono, Kei Yoshimura, Takashi Naito, Takuya Aoyagi
  • Publication number: 20100316918
    Abstract: In various aspects, provided are substantially single phase ceramic membranes, gas separation devices based thereon, and methods of making the membranes. In various embodiments, the membranes and devices can be used for hydrogen production, such as in a fuel-cell.
    Type: Application
    Filed: April 9, 2007
    Publication date: December 16, 2010
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Shriram Ramanathan, Annamalai Karthikeyan
  • Publication number: 20100310941
    Abstract: The present invention relates to compositions including nano-particles and a nano-structured support matrix, methods of their preparation and applications thereof. The compositions of the present invention are particularly suitable for use as anode material for lithium-ion rechargeable batteries. The nano-structured support matrix can include nanotubes, nanowires, nanorods, and mixtures thereof. The composition can further include a substrate on which the nano-structured support matrix is formed. The substrate can include a current collector material.
    Type: Application
    Filed: June 4, 2010
    Publication date: December 9, 2010
    Inventors: Prashant Nagesh KUMTA, Wei WANG
  • Publication number: 20100258769
    Abstract: The present invention relates to optically variable pigments of high electrical conductivity which comprise a flake-form substrate, which essentially consists of silicon dioxide and/or silicon oxide hydrate, and an electrically conductive layer surrounding the substrate, to a process for the preparation thereof, and to the use of pigments of this type.
    Type: Application
    Filed: December 11, 2008
    Publication date: October 14, 2010
    Applicant: Merck Patent GmbH
    Inventors: Burkhard Krietsch, Matthias Kuntz, Reinhold Rueger
  • Patent number: 7754111
    Abstract: An electrochemical cell comprising a lithium anode and a fluorinated silver vanadium oxide cathode activated with a nonaqueous electrolyte is described. The fluorinated silver vanadium oxide is of the formula Ag4V2O11-xFx, wherein x ranges from about 0.02 to about 0.3.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: July 13, 2010
    Assignee: Greatbatch Ltd.
    Inventors: Jingsi Yang, Esther S. Takeuchi, Randolph Leising