Iron, Cobalt, Or Nickel Compound Patents (Class 252/521.2)
  • Patent number: 10256467
    Abstract: An object is to provide an electrode material with high electrical conductivity and a power storage device using the electrode material. An object is to provide an electrode material with high capacity and a power storage device using the electrode material. Provided is a particulate electrode material including a core containing a compound represented by a general formula Li2MSiO4 (in the formula, M represents at least one kind of an element selected from Fe, Co, Mn, and Ni) as a main component, and a covering layer containing a compound represented by a general formula LiMPO4 as a main component and covering the core. Further, a solid solution material is provided between the core and the covering layer. With such a structure, an electrode material with high electrical conductivity can be obtained. Further, with such an electrode material, a power storage device with high discharge capacity can be obtained.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: April 9, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Masaki Yamakaji
  • Patent number: 10109851
    Abstract: A composite cathode active material includes a material capable of intercalating or deintercalating lithium; and a solid ion conductor. A cathode and a lithium battery each include the composite cathode active material. A method of preparing a composite cathode active material includes: mixing a core including a cathode active material and a solid ion conductor; and forming a coating layer including the solid ion conductor on the core utilizing a dry method.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: October 23, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yu-Mi Song, Ming-Zi Hong, Do-Hyung Park, Seon-Young Kwon, Joong-Ho Moon, Ju-Hyeong Han, Han-Eol Park, Min-Han Kim, Kyoung-Hyun Kim, Ki-Hyun Kim, Sang-Hoon Kim
  • Patent number: 10003072
    Abstract: A secondary battery having an improved life characteristics is provided by the use of a positive electrode active material for a secondary battery, comprising (a) a surface layer comprising a lithium metal composite oxide having a spinel crystal structure represented by space group Fd-3m, and (b) an internal portion comprising a lithium metal composite oxide having a spinel crystal structure represented by space group P4332.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: June 19, 2018
    Assignee: NEC Corporation
    Inventors: Takehiro Noguchi, Makiko Takahashi, Shin Serizawa
  • Patent number: 9867889
    Abstract: Methods are provided for the generation of nanostructures suitable for use in magnetic resonance imaging where the nanostructures have at least one dimension of about 2 nm or less. In particular, the methods comprise the selective use of incubation temperatures that result in the controlled removal of ligands from metallic cores to which they are attached, allowing the metallic cores or the precursor moieties to unite to form nanostructures of defined and predictable shapes, but having at least one dimension significantly less that at least one other dimension. Accordingly, the nanostructures of the disclosure may be ultrathin sheets, rods, whiskers and the like, or even structures that are thin and porous resembling rice grains. The temperatures useful in the methods of the disclosure are less than 300° C. and allow for progressive elevation of the incubation temperature.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: January 16, 2018
    Assignee: The Board of Trustees of the University of Alabama
    Inventor: Yuping Y. Bao
  • Patent number: 9786911
    Abstract: Disclosed is a cathode active material for secondary batteries comprising at least one compound selected from the following formula 1: (1?s?t)[Li(LiaMn(1?a?x?y)NixCoy)O2]*s[Li2CO3]*t[LiOH]??(1) wherein 0<a<0.2, 0<x<0.9, 0<y<0.5, a+x+y<1, 0<s<0.03, and 0<t<0.03; and a, x and y represent a molar ratio, and a and t represent a weight ratio. The cathode active material has long lifespan at room temperature and high temperatures and provides superior stability, although charge and discharge are repeated at a high current.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: October 10, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Kyun Chang, Hong Kyu Park, Sin Young Park, Jin-hyung Lim, DongHun Lee
  • Patent number: 9716268
    Abstract: A positive electrode including a positive electrode mixture layer containing a positive electrode active material represented by Li1.08Ni0.43Co0.26Mn0.24O2 having a layered structure, a negative electrode containing a negative electrode active material, a separator provided between the positive electrode and the negative electrode, and a nonaqueous electrolyte are included, in which a film composed of carbon black permeable to lithium ions is formed on a surface of the positive electrode active material, and the film contains lithium fluoride particles serving as metal halide particles.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: July 25, 2017
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Kazunari Okita, Tadayoshi Tanaka, Takatoshi Higuchi, Hiroyuki Fujimoto, Yoshinori Kida
  • Patent number: 9543582
    Abstract: The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a triethanolamine solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 1 bar to 10 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method, a supercritical hydrothermal synthesis method and a glycothermal synthesis method, a reaction may be performed under a relatively lower pressure. Thus, a high temperature/high pressure reactor is not necessary and process safety and economic feasibility may be secured. In addition, a lithium iron phosphate nanopowder having uniform particle size and effectively controlled particle size distribution may be easily prepared.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: January 10, 2017
    Assignee: LG Chem, Ltd.
    Inventors: In Kook Jun, Seung Beom Cho, Myoung Hwan Oh
  • Patent number: 9484717
    Abstract: The disclosure pertains to ignition systems and more particularly to spark igniters for burners and burner pilots. The spark igniter provided, is configured such that an electric field concentration between two electrodes increases while keeping output voltage unchanged.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: November 1, 2016
    Assignee: Chentronics, LLC
    Inventors: Andrew H. Strong, Ewen M. Kelly
  • Patent number: 9058913
    Abstract: The invention relates to a cobalt-free NTC ceramic having the composition Nia?Cub?Coc?MndO4 where 0.09<a?<0.6, 0.02<b?<0.65, 0.12<c?<0.58 and 1.6<d?<2.1. The invention further relates to a method for producing a cobalt-free NTC ceramic, the composition of which is derived from a cobalt-containing NTC ceramic of general formula NiaCubCocMndO4 where 0.09<a<0.6, 0.02<b<0.65, 0.12<c<0.58 and 1.6<d<2.1, wherein Co is replaced by Zn.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: June 16, 2015
    Assignee: EPCOS AG
    Inventor: Adalbert Feltz
  • 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
  • Patent number: 9028726
    Abstract: The present invention provides a sputtering target suitable for producing an amorphous transparent conductive film which can be formed without heating a substrate and without feeding water during the sputtering; which is easily crystallized by low-temperature annealing; and which has low resistivity after the crystallization. An oxide sintered compact containing an indium oxide as a main component, while containing tin as a first additive element, and one or more elements selected from germanium, nickel, manganese, and aluminum as a second additive element, with the content of tin which is the first additive element being 2-15 atom % relative to the total content of indium and tin, and the total content of the second additive element being 0.1-2 atom % relative to the total content of indium, tin and the second additive element.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: May 12, 2015
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Masakatsu Ikisawa, Masataka Yahagi
  • Publication number: 20150123050
    Abstract: A positive-electrode active material with improved electrical conductivity, and a power storage device using the material are provided. A positive-electrode active material with large capacity, and a power storage device using the material are provided. A core including lithium metal oxide is used as a core of a main material of the positive-electrode active material, and one to ten pieces of graphene is used as a covering layer for the core. A hole is provided for graphene, whereby transmission of a lithium ion is facilitated, resulting in improvement of use efficiency of current.
    Type: Application
    Filed: January 5, 2015
    Publication date: May 7, 2015
    Inventors: Shunpei Yamazaki, Tamae Moriwaka, Takuya Hirohashi, Kuniharu Nomoto, Takuya Miwa
  • Publication number: 20150118563
    Abstract: The present invention discloses a lithium-rich positive electrode material, a lithium battery positive electrode, and a lithium battery. The lithium-rich positive electrode material has a coating structure, where a general structural formula of a core of the coating structure is as follows: z[xLi2MO3·(1?x)LiMeO2]·(1?z)Li1+dMy2?dO, where in the formula, 0<x<1, 0<z<1, and 0<d<?; M is at least one of Mn, Ti, Zr, and Cr, Me is at least one of Mn, Co, Ni, Ti, Cr, V, Fe, Al, Mg, and Zr, and My is at least one of Mn, Ni, and Co; and a coating layer of the coating structure is a compound whose general formula is MmMz, where in the formula, Mm is at least one of Zn, Ti, Zr, and Al, and Mz is O or F. The lithium battery positive electrode and the lithium battery both include the lithium-rich positive electrode material.
    Type: Application
    Filed: December 31, 2014
    Publication date: April 30, 2015
    Inventor: Chaohui Chen
  • Patent number: 9005481
    Abstract: The invention relates to a method for manufacturing a composite positive electrode active material being a composite of a positive electrode active material and carbon nanotubes. The manufacturing method includes preparing an aqueous solution of a starting material of a positive electrode active material containing a starting material of the positive electrode active material, and an aqueous solution of solubilized carbon nanotubes containing the carbon nanotubes and a solubilizing material that is composed of a water-soluble polymer whose solubilization retention rate of carbon nanotubes does not decrease with rising temperature; and synthesizing a positive electrode active material-carbon nanotube composite by mixing the aqueous solution of a starting material of a positive electrode active material and the aqueous solution of solubilized carbon nanotubes, and performing hydrothermal synthesis.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: April 14, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Satoshi Yoshida, Hiroki Kubo, Masahiro Iwasaki
  • Patent number: 9005490
    Abstract: A solid state sintered material is described that includes a mixed oxide of lanthanum, strontium, cobalt, iron and oxygen, and CaCO3 inclusions. The solid state sintered material can also include calcium oxide, which can form from thermal composition of calcium carbonate. The solid state sintered material can also include a pore-forming particulate material such as carbon black and/or a doped ceramic metal oxide ionic conductor such as Sm-doped ceria uniformly dispersed in the solid state sintered material. The solid state sintered material can be formed from a two-step process in which a portion of the CaCO3 is mixed with the mixed oxide materials and heated to form porous agglomerates, and the remaining CaCO3 is added during the formation of a sintering paste. The solid state sintered material described herein can be used as a cathode material for solid oxide fuel cell.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: April 14, 2015
    Assignee: Delphi Technologies, Inc.
    Inventors: Kailash C. Jain, Rick D. Kerr, Joseph M Keller, Joseph V. Bonadies
  • Patent number: 9005488
    Abstract: The invention aims at an aqueous ink for high-temperature electrochemical cell electrodes and/or electrolyte containing particles of at least one mineral filler, at least one binder, and at least one dispersant. It also concerns the electrode and the electrolyte using such an ink.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: April 14, 2015
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventor: Richard Laucournet
  • Patent number: 8968594
    Abstract: A method is employed for producing a positive electrode active material for a lithium secondary battery that comprises mixing lithium phosphate having a particle diameter D90 of 100 ?m or less, an M element-containing compound having a particle diameter D90 of 100 ?m or less (where, M is one type or two or more types of elements selected from the group consisting of Mg, Ca, Fe, Mn, Ni, Co, Zn, Ge, Cu, Cr, Ti, Sr, Ba, Sc, Y, Al, Ga, In, Si, B and rare earth elements) and water, adjusting the concentration of the M element with respect to water to 4 moles/L or more to obtain a raw material, and producing olivine-type LiMPO4 by carrying out hydrothermal synthesis using the raw material.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: March 3, 2015
    Assignee: Showa Denko K.K.
    Inventors: Akihisa Tonegawa, Akihiko Shirakawa, Isao Kabe, Gaku Oriji
  • Patent number: 8945498
    Abstract: To simply manufacture a lithium-containing oxide at lower manufacturing cost. A method for manufacturing a lithium-containing composite oxide expressed by a general formula LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)). A solution containing Li and P is formed and then is dripped in a solution containing M (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) to form a mixed solution. By a hydrothermal method using the mixed solution, a single crystal particle of a lithium-containing composite oxide expressed by the general formula LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) is manufactured.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: February 3, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Tomoya Futamura
  • Patent number: 8940656
    Abstract: Disclosed are a photocatalyst of CoP2 loaded red phosphorus, a preparation method thereof, and a method for photocatalytic hydrogen production from water under visible light irradiation over the photocatalyst of CoP2 loaded red phosphorus.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: January 27, 2015
    Assignee: The Chinese University of Hong Kong
    Inventors: Chai Mei Jimmy Yu, Feng Wang
  • Patent number: 8936707
    Abstract: A sputtering target of nonmagnetic-particle-dispersed ferromagnetic material is provided having a phase (A) such that nonmagnetic particles are dispersed in a ferromagnetic material formed from a Co—Cr alloy containing 5 at % or more and 20 at % or less of Cr and Co as the remainder thereof, and schistose textures (B) with a short side of 30 to 100 ?m and a long side of 50 to 300 ?m formed from a Co—Cr alloy phase in the phase (A); wherein each of the foregoing nonmagnetic particles has such a shape and size that the particle is smaller than all hypothetical circles with a radius of 1 ?m around an arbitrary point within the nonmagnetic particle, or a shape and size with at least two contact points or intersection points between the respective hypothetical circles and the interface of the ferromagnetic material and the nonmagnetic material.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: January 20, 2015
    Assignee: JX Nippon Mining & Metals Corporation
    Inventor: Atsushi Sato
  • Publication number: 20150017544
    Abstract: This invention discloses an electrochemical device having a multilayer structure and methods for making such a device. Specifically, this invention discloses a multilayer electrochemical device having nano-sized cobalt oxyhydroxide conductive agents and/or active materials within the polymer layers.
    Type: Application
    Filed: June 18, 2014
    Publication date: January 15, 2015
    Inventors: Binay Prasad, Levi T. Thompson, Paul G. Rasmussen
  • Patent number: 8932480
    Abstract: The present invention provides a LiCoO2-containing powder comprising LiCoO2 having a stoichiometric composition via heat treatment of a lithium cobalt oxide and a lithium buffer material to make equilibrium of a lithium chemical potential there between; a lithium buffer material which acts as a Li acceptor or a Li donor to remove or supplement Li-excess or Li-deficiency, coexisting with a stoichiometric lithium metal oxide; and a method for preparing a LiCoO2-containing powder. Further, provided is an electrode comprising the above-mentioned LiCoO2-containing powder as an active material, and a rechargeable battery comprising the same electrode.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: January 13, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Jens M. Paulsen, Sun Sik Shin, Hong-Kyu Park
  • Patent number: 8932444
    Abstract: A sputtering target of nonmagnetic-particle-dispersed ferromagnetic material is provided having a phase (A) such that nonmagnetic particles are dispersed in a ferromagnetic material formed from a Co—Cr alloy containing 5 at % or more and 20 at % or less of Cr and Co as the remainder thereof, and schistose textures (B) with a short side of 30 to 100 ?m and a long side of 50 to 300 ?m formed from a Co—Cr alloy phase in the phase (A); wherein each of the foregoing nonmagnetic particles has such a shape and size that the particle is smaller than all hypothetical circles with a radius of 1 ?m around an arbitrary point within the nonmagnetic particle, or a shape and size with at least two contact points or intersection points between the respective hypothetical circles and the interface of the ferromagnetic material and the nonmagnetic material.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: January 13, 2015
    Assignee: JX Nippon Mining & Metals Corporation
    Inventor: Atsushi Sato
  • Patent number: 8920687
    Abstract: Provided is a cathode active material for nonaqueous electrolyte rechargeable batteries which allows production of batteries having improved load characteristics with stable quality, and also allows production of batteries having high capacity. Also provided are a cathode for nonaqueous electrolyte rechargeable batteries and a nonaqueous electrolyte rechargeable battery. The cathode active material includes secondary particles each composed of a plurality of primary particles, and/or single crystal grains, and has a specific surface area of not smaller than 20 m2/g and smaller than 0.50 m2/g, wherein average number A represented by formula (1) is not less than 1 and not more than 10: A=(m+p)/(m+s) (m: the number of single crystal grains; p: the number of primary particles composing the secondary particles; s: the number of secondary particles).
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: December 30, 2014
    Assignee: Santoku Corporation
    Inventors: Tetsu Fujiwara, Masayuki Moritaka, Akihito Kaneko
  • Patent number: 8906553
    Abstract: A cathode electrode material for use in rechargeable Li-ion batteries, based on the integration of two Li-based materials of NASICON- and Spinel-type structures, is described in the present invention. The structure and composition of the cathode can be described by a core material and a surface coating surrounding the core material, wherein the core of the cathode particle is of the formula LiMn2-xNixO4?? (0.5?x?0 & 0???1) and having a spinel crystal structure, the surface coating is of the formula Li1+xMxTi2-x(PO4)3 (M: is a trivalent cation, 0.5?x?0) having a NASICON-type crystal structure.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: December 9, 2014
    Assignee: NEI Corporation
    Inventors: Nader Marandian Hagh, Farid Badway, Ganesh Skandan
  • Publication number: 20140346410
    Abstract: An anode composite material for lithium ion battery and a preparation method thereof. The composite material is a composite material formed by compounding at least one of SiCO, SiCNO, SiCN and SiBCN with LiaMbPO4, wherein 0.95?a?1.1, 0.95?b?1.1, and M is at least one of Fe, Co, Ni and Mn. The content of at least one of SiCO, SiCNO, SiCN and SiBCN in the anode composite material is in a range of 1-20 wt % of the total weight of the composite material. The composite material formed by compounding at least one of SiCO, SiCNO, SiCN and SiBCN with LiaMbPO4 is obtained by adding LiaMbPO4 into at least one organosilicon polymer of polysiloxane, polysilazane, and polyborosilazane, and then curing, crosslinking, and pyrolysing. Compared with LiaMbPO4, the composite material has a notable improvement in electrochemistry performance and tap density.
    Type: Application
    Filed: December 20, 2011
    Publication date: November 27, 2014
    Applicant: GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS
    Inventors: Shigang Lu, Surong Kan, Xiangjun Zhang, Weihua Jin
  • Patent number: 8883047
    Abstract: Compositions related to skutterudite-based thermoelectric materials are disclosed. Such compositions can result in materials that have enhanced ZT values relative to one or more bulk materials from which the compositions are derived. Thermoelectric materials such as n-type and p-type skutterudites with high thermoelectric figures-of-merit can include materials with filler atoms and/or materials formed by compacting particles (e.g., nanoparticles) into a material with a plurality of grains each having a portion having a skutterudite-based structure. Methods of forming thermoelectric skutterudites, which can include the use of hot press processes to consolidate particles, are also disclosed. The particles to be consolidated can be derived from (e.g., grinded from), skutterudite-based bulk materials, elemental materials, other non-Skutterudite-based materials, or combinations of such materials.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: November 11, 2014
    Assignees: Massachusetts Institute of Technology, Trustees of Boston College
    Inventors: Zhifeng Ren, Jian Yang, Xiao Yan, Qinyu He, Gang Chen, Qing Hao
  • Publication number: 20140284526
    Abstract: The present invention is directed to processing techniques and systems of metal fluoride based material, including but not limited to nickel difluoride, copper difluoride, manganese fluoride, chromium fluoride, bismuth fluoride, iron trifluoride, iron difluoride, iron oxyfluoride, metal doped iron fluorides, e.g., FexM1-xFy (M=metals, which can be Co, Ni, Cu, Cr, Mn, Bi and Ti) materials. An exemplary implementation involves mixing a first compound comprising a metal material, nitrogen, and oxygen to a second compound comprising hydrogen fluoride. The mixed compound is milled to form metal fluoride precursor and a certain byproduct. The byproduct is removed, and the metal fluoride precursor is treated to form iron trifluoride product. There are other embodiments as well.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 25, 2014
    Applicant: QuantumScape Corporation
    Inventor: Jon Shan
  • Publication number: 20140264190
    Abstract: A composition for forming an electrode. The composition includes a metal fluoride compound doped with a dopant. The addition of the dopant: (i) improves the bulk conductivity of the composition as compared to the undoped metal fluoride compound; (ii) changes the bandgap of the composition as compared to the undoped metal fluoride compound; or (iii) induces the formation of a conductive metallic network. A method of making the composition is included.
    Type: Application
    Filed: March 19, 2014
    Publication date: September 18, 2014
    Applicant: Wildcat Discovery Technologies, Inc.
    Inventors: Wei Tong, Steven Kaye, David Keogh, Cory O'Neill
  • 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: 20140264198
    Abstract: A composition for forming an electrode. The composition includes a metal fluoride, such as copper fluoride, and a matrix material. The matrix material adds capacity to the electrode. The copper fluoride compound is characterized by a first voltage range in which the copper fluoride compound is electrochemically active and the matrix material characterized by a second voltage range in which the matrix material is electrochemically active and substantially stable. A method for forming the composition is included.
    Type: Application
    Filed: March 19, 2014
    Publication date: September 18, 2014
    Applicant: Wildcat Discovery Technologies, Inc.
    Inventors: Wei Tong, Steven Kaye, David Keogh, Cory O'Neill
  • Publication number: 20140272579
    Abstract: A compound MjXp which is particularly suitable for use in a battery prepared by the complexometric precursor formulation methodology wherein: Mj is at least one positive ion selected from the group consisting of alkali metals, alkaline earth metals and transition metals and j is an integer representing the moles of said positive ion per moles of said MjXp; and Xp, a negative anion or polyanion from Groups IIIA, IV A, VA, VIA and VIIA and may be one or more anion or polyanion and p is an integer representing the moles of said negative ion per moles of said MjXp.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: PERFECT LITHIUM CORP.
    Inventor: Teresita Frianeza-Kullberg
  • Patent number: 8828605
    Abstract: In one embodiment, an active cathode material comprises a mixture that includes: at least one of a lithium cobaltate and a lithium nickelate; and at least one of a manganate spinel represented by an empirical formula of Li(1+x1)(Mn1?y1A?y1)2?x1Oz1 and an olivine compound represented by an empirical formula of Li(1?x2)A?x2MPO4. In another embodiment, an active cathode material comprises a mixture that includes: a lithium nickelate selected from the group consisting of LiCoO2-coated LiNi0.8Co0.15Al0.05O2, and Li(Ni1/3Co1/3Mn1/3)O2; and a manganate spinel represented by an empirical formula of Li(1+x7)Mn2?y7Oz7. A lithium-ion battery and a battery pack each independently employ a cathode that includes an active cathode material as described above.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: September 9, 2014
    Assignee: Boston-Power, Inc.
    Inventor: Christina M. Lampe-Onnerud
  • Patent number: 8828277
    Abstract: A method of producing a nanocomposite thermoelectric conversion material includes preparing a solution that contains salts of a plurality of first elements constituting a thermoelectric conversion material, and a salt of a second element that has a redox potential lower than redox potentials of the first elements; precipitating the first elements, thereby producing a matrix-precursor that is a precursor of a matrix made of the thermoelectric conversion material, by adding a reducing agent to the solution; precipitating the second element in the matrix-precursor, thereby producing slurry containing the first elements and the second element, by further adding the reducing agent to the solution; and alloying the plurality of the first elements, thereby producing the matrix (70) made of the thermoelectric conversion material, and producing nano-sized phonon-scattering particles (80) including the second element, which are dispersed in the matrix (70), by filtering and washing the slurry, and then, heat-treating t
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: September 9, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Junya Murai, Takuji Kita
  • Patent number: 8821765
    Abstract: The present invention provides a cathode active material for a lithium secondary battery containing therein an open pore having a protrusion which is formed so as to extend from the inner surface of the open pore toward the center of the open pore. Specifically, the protrusion is formed so as to extend toward the center of a virtual circle formed by approximating the shape of a cross section of the open pore to a circular shape. The protrusion is formed of the same material as the remaining portion of the cathode active material.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: September 2, 2014
    Assignee: NGK Insulators, Ltd.
    Inventors: Ryuta Sugiura, Akira Urakawa, Nobuyuki Kobayashi, Tsutomu Nanataki
  • Patent number: 8821766
    Abstract: The present invention aims at providing lithium manganate having a high output and an excellent high-temperature stability. The above aim can be achieved by lithium manganate particles having a primary particle diameter of not less than 1 ?m and an average particle diameter (D50) of kinetic particles of not less than 1 ?m and not more than 10 ?m, which are substantially in the form of single crystal particles and have a composition represented by the following chemical formula: Li1+xMn2-x-yYyO4 in which Y is at least one element selected from the group consisting of Al, Mg and Co; x and y satisfy 0.03?x?0.15 and 0.05?y?0.20, respectively, wherein the Y element is uniformly dispersed within the respective particles, and an intensity ratio of I(400)/I(111) thereof is not less than 33% and an intensity ratio of I(440)/I(111) thereof is not less than 16%.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: September 2, 2014
    Assignee: Toda Kogyo Corporation
    Inventors: Masayuki Uegami, Akihisa Kajiyama, Kazutoshi Ishizaki, Hideaki Sadamura
  • Patent number: 8808584
    Abstract: It is an object of the present invention to provide an active material for a lithium secondary battery having high discharge capacity and excellent in high rate discharge characteristics and a lithium secondary battery using the same. The active material for a lithium secondary battery containing a solid solution of a lithium-transition metal composite oxide having an ?-NaFeO2 type crystal structure and the lithium secondary battery using the same have features that the composition ratios of the metal elements contained in the solid solution satisfy Li1+(x/3)Co1?x?y?zNiy/2Mgz/2Mn(2x/3)+(y/2)+(z/2) (x>0; y>0; z>0; x+y+z<1); the active material has an X-ray diffraction pattern capable of belonging to space group P3112; and the active material has discharge capacity exceeding 200 mAh/g.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: August 19, 2014
    Assignee: GS Yuasa International Ltd.
    Inventors: Daisuke Endo, Yoshihiro Katayama, Toshiyuki Nukuda
  • Patent number: 8801960
    Abstract: Because of the composition represented by General Formula: Li1+x+?Ni(1?x?y+?)/2Mn(1?x?y??)/2MyO2 (where 0?x?0.05, ?0.05?x+??0.05, 0?y?0.4; ?0.1???0.1 (when 0?y?0.2) or ?0.24???0.24 (when 0.2<y?0.4); and M is at least one element selected from the group consisting of Ti, Cr, Fe, Co, Cu, Zn, Al, Ge and Sn), a high-density lithium-containing complex oxide with high stability of a layered crystal structure and excellent reversibility of charging/discharging can be provided, and a high-capacity non-aqueous secondary battery excellent in durability is realized by using such an oxide for a positive electrode.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: August 12, 2014
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Atsushi Ueda, Kazutaka Uchitomi, Shigeo Aoyama
  • Patent number: 8801974
    Abstract: A method for making a composite of cobalt oxide is disclosed. An aluminum nitrate solution is provided. Lithium cobalt oxide particles are introduced into the aluminum nitrate solution. The lithium cobalt oxide particles are mixed with the aluminum nitrate solution to form a mixture. A phosphate solution is added into the mixture to react with the aluminum nitrate solution and form an aluminum phosphate layer on surfaces of the lithium cobalt oxide particles. The lithium cobalt oxide particles with the aluminum phosphate layer formed on the surfaces thereof are heat treated to form a lithium cobalt oxide composite. The lithium cobalt oxide composite is electrochemical lithium-deintercalated at a voltage of Vx, wherein 4.5V<Vx?5V to form a cobalt oxide. The present disclosure also relates to a cobalt oxide and a composite of cobalt oxide.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: August 12, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Jian-Jun Li, Xiang-Ming He, Li Wang, Dan Wang, Xian-Kun Huang, Chang-Yin Jiang
  • 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: 8795555
    Abstract: A method of manufacturing nickel electrode for a nickel-zinc battery includes the steps of: providing a nickel oxyhydroxide (NiOOH) and a nickel metal; adding a first additive consisting of transition metal oxide to the nickel oxyhydroxide and the nickel metal; and adding a binder for combining the first additive to the nickel oxyhydroxide and the nickel metal, wherein the first additive contains one or more transition metal oxides selected from a group consisting of ruthenium oxide (RuO2) and rhodium oxide (RhO2). Metal oxide or hydroxide with a rare earth oxide improves the electrode capacity and shelf life. Zinc oxide is added to the cathode to facilitate charger transfer and improve the characteristics of high rate discharging. The cathode significantly increases the charging efficiency, promotes the overpotential of oxygen evolution, and intensifies the depth of discharging, thereby increasing the overall efficiency and lifespan of the battery.
    Type: Grant
    Filed: November 11, 2012
    Date of Patent: August 5, 2014
    Assignee: Hangzhou Neucell Energy Co., Ltd.
    Inventor: Fuyuan Ma
  • 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
  • Patent number: 8771877
    Abstract: Disclosed is a positive electrode material for nonaqueous electrolyte secondary batteries, which comprises a porous body composed of a material containing a polyanion. Also disclosed is a method for producing such a positive electrode material for nonaqueous electrolyte secondary batteries. When a carbon coating is formed on the surface of a material containing a polyanion of lithium iron phosphate or the like by a conventional method, the capacity during low rate discharge is improved but the capacity is not sufficient. In the present invention, the positive electrode material for nonaqueous electrolyte secondary batteries, which comprises a porous body composed of a material containing a polyanion, has a structure wherein the inner walls of the pores of the porous body are provided with a layered carbon, for improving the discharge capacity.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: July 8, 2014
    Assignee: GS Yuasa International Ltd.
    Inventors: Yoshinobu Yasunaga, Akihiro Fujii, Tokuo Inamasu
  • Patent number: 8765027
    Abstract: A polymer composition comprises at least one substantially non-conductive polymer binder and at least first and second electrically conductive fillers. The first electrically conductive filler is comprised of particles having avoid-bearing structure; and the second electrically conductive filler is comprised of particles which are acicular in shape.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: July 1, 2014
    Assignee: Peratech Limited
    Inventors: David Lussey, David Bloor, Paul Laughlin, Cyril Hilsum
  • Publication number: 20140166946
    Abstract: At least one of an aqueous solution A containing lithium, an aqueous solution B containing iron, manganese, cobalt, or nickel, and an aqueous solution C containing a phosphoric acid includes graphene oxide. The aqueous solution A is dripped into the aqueous solution C, so that a mixed solution E including a precipitate D is prepared. The mixed solution E is dripped into the aqueous solution B, so that a mixed solution G including a precipitate F is prepared. The mixed solution G is subjected to heat treatment in a pressurized atmosphere, so that a mixed solution H is prepared, and the mixed solution H is then filtered. Thus, particles of a compound containing lithium and oxygen which have a small size are obtained.
    Type: Application
    Filed: February 12, 2014
    Publication date: June 19, 2014
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Takuya MIWA, Kuniharu Nomoto, Nobuhiro Inoue
  • Patent number: 8753545
    Abstract: Composite particles that include an electrochemically active metal phase, an insulating phase, and a conducting phase are provided that are useful active materials in negative electrodes for lithium-ion electrochemical cells. The electrochemically active phase includes silicon. Lithium-ion electrochemical cells are provided that include the provided composite composite particles as active materials in negative electrodes as well as methods of making the provided composite particles.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: June 17, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Mark N. Obrovac, Marc Flodquist
  • Patent number: 8734676
    Abstract: Disclosed is lithium iron phosphate having an olivine crystal structure, wherein the lithium iron phosphate has a composition represented by the following Formula 1 and carbon (C) is coated on the particle surface of the lithium iron phosphate containing a predetermined amount of sulfur (S). Li1+aFe1?xMx(PO4?b)Xb??(1) (wherein M, X, a, x, and b are the same as defined in the specification).
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: May 27, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kuk Noh, Hong Kyu Park, Cheol-Hee Park, Su-Min Park, JiEun Lee
  • Publication number: 20140138601
    Abstract: Various embodiments of a composite material are provided. In one embodiment of the present invention a nanometer-scale composite material comprises, by volume, from about 1% to about 99% variable-conductivity material and from about 99% to about 1% conductive material. The composite material exhibits memristive properties when a voltage differential is applied to the nanocomposite. In another embodiment, a variable resistor device includes a first electrode terminal and a second electrode terminal and a nanocomposite in electrical communication with the electrode terminals. The composite material comprises, by volume, from about 1% to about 99% variable-conductivity material and from about 99% to about 1% conductive material. The memristor is tunable as the minimum instantaneous resistance can be altered several orders of magnitude by varying the composition and ratio of the variable-conductivity material and conductive material constituents of the composites.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 22, 2014
    Applicant: Vanderbilt Unviersity
    Inventors: Jeremy West Mares, Sharon M. Weiss
  • Patent number: 8722246
    Abstract: The present invention includes compositions and methods of making cation-substituted and fluorine-substituted spinel cathode compositions by firing a LiMn2?y?zLiyMzO4 oxide with NH4HF2 at low temperatures of between about 300 and 700° C. for 2 to 8 hours and a ? of more than 0 and less than about 0.50, mixed two-phase compositions consisting of a spinel cathode and a layered oxide cathode, and coupling them with unmodified or surface modified graphite anodes in lithium ion cells.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: May 13, 2014
    Assignee: Board of Regents of the University of Texas System
    Inventors: Arumugam Manthiram, Wonchang Choi
  • Patent number: 8715539
    Abstract: The present invention provides a positive electrode material for a lithium secondary battery comprising a compound represented by the following Formula 1: LiMn1-xMxP1-yAsyO4??[Formula 1] wherein 0<x?0.1, 0<y?0.1, and M is at least one metal selected from the group consisting of magnesium (Mg), titanium (Ti), nickel (Ni), cobalt (Co), and iron (Fe). Positive electrode materials of the present invention, when used as a positive electrode material in a lithium secondary battery, provides increased discharge potential of the battery due to its high discharge capacity, excellent cycle characteristics and charge/discharge efficiency, and high discharge potential with respect to lithium.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: May 6, 2014
    Assignees: Hyundai Motor Company, Korea Electronics Technology Institute
    Inventors: Sa Heum Kim, Seung Ho Ahn, Dong Gun Kim, Young Jun Kim, Jun Ho Song