Nickel Component Is Active Material Patents (Class 429/223)
  • Patent number: 9379375
    Abstract: To provide a lithium secondary battery which has high capacity while maintaining excellent cycle characteristic. The lithium secondary battery cathode of the present invention includes a cathode collector formed of a conductive substance, and a cathode active material layer formed of a sintered lithium composite oxide sheet. The cathode active material layer is bonded to the cathode collector by the mediation of a conductive bonding layer. A characteristic feature of the present invention resides in that the cathode active material layer has a thickness of 30 ?m or more, a voidage of 3 to 30%, and an open pore ratio of 70% or higher.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: June 28, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Ryuta Sugiura, Nobuyuki Kobayashi, Tsutomu Nanataki, Masaya Ugaji, Kaoru Nagata
  • Patent number: 9368788
    Abstract: The present invention provides one with a novel coated iron electrode. Provided is an iron based electrode comprising a single layer conductive substrate coated on at least one side with a multilayered coating, with each coating layer comprising an iron active material, and preferably a binder. The coating is comprised of at least two layers. Each layer has at least a different porosity or composition than an adjacent layer. The iron based electrode is useful in alkaline rechargeable batteries, particularly as a negative electrode in a Ni—Fe battery.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: June 14, 2016
    Assignee: ENCELL TECHNOLOGY, INC.
    Inventors: Randy Gene Ogg, Craig Hinton Welch
  • Patent number: 9362016
    Abstract: A cathode active material of a lithium ion battery includes a number of LiNi0.5Mn1.5O4 particles and an AlF3 layer coated on a surface of the LiNi0.5Mn1.5O4 particles. A method for making the cathode active material is provided. In the method, a number of LiNi0.5Mn1.5O4 particles are provided. The LiNi0.5Mn1.5O4 particles are added to a trivalent aluminum source solution to form a solid-liquid mixture. A fluorine source solution is put into the solid-liquid mixture to react and form an AlF3 layer coated on the surface of the LiNi0.5Mn1.5O4 particles. The coated LiNi0.5Mn1.5O4 particles are heat treated to form the cathode active material. A lithium ion battery including the cathode active material is also provided.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: June 7, 2016
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jian-Gang Li, Xiang-Ming He, Jian-Jun Li, Jian Gao, Li Wang
  • Patent number: 9356279
    Abstract: In a (001) pole figure of the active material particles, where a plane parallel to the substrate is defined as the equatorial plane, a Lotgering factor fa(001) of an A plane and a Lotgering factor fh(001) of a B plane satisfy both Expressions (1) and (2) below, the A plane being an equatorial cross section perpendicular to a line that connects the center of the (001) pole figure and a first point of maximum XRD intensity of peaks attributed to (001) planes at the outer periphery of the equatorial plane, the B plane being an equatorial cross section perpendicular to a line that connects the center of the (001) pole figure and a second point of minimum XRD intensity of peaks attributed to the (001) planes at the outer periphery of the equatorial plane: fa(001)>0.3 ??Expression (1) fa(001)?fb(001)<1.0 ??Expression (2).
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: May 31, 2016
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Masato Hozumi, Toshiya Saito, Hideto Yamada, Tohru Suzuki, Tetsuo Uchikoshi, Yoshio Sakka
  • Patent number: 9350043
    Abstract: A nonaqueous electrolyte secondary battery is prevented from decreasing the remaining capacity and returned capacity at the time of continuous charge at high voltages and high temperatures. The battery has positive and negative electrodes, and a nonaqueous electrolytic solution containing ethylene carbonate and fluoroethylene carbonate as a solvent. The positive electrode contains a positive-electrode active material with the fine particles of a rare earth element compound deposited on its surface in a dispersed state.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: May 24, 2016
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Hiroyuki Matsumoto, Takeshi Ogasawara, Naoki Imachi
  • Patent number: 9337461
    Abstract: A composite porous membrane is a composite porous membrane, wherein a porous membrane B including a heat-resistant resin is laminated on the surface of a polypropylene resin of an outermost layer of a porous membrane A composed of at least one layer, wherein at least one of the outermost layers comprises the polypropylene resin. The composite porous membrane satisfies a particular range of peeling strength at the interface between the porous membrane A and the porous membrane B and a particular range of difference between air resistance of the whole composite porous membrane and air resistance of the porous membrane A, provided that the porous membrane A satisfies a particular range of average pore size and porosity.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: May 10, 2016
    Assignee: Toray Battery Separator Film Co., Ltd.
    Inventors: Naoki Mizuno, Michihiko Irie, Yoshitaka Ayuzawa, Masanori Nakamura
  • Patent number: 9337484
    Abstract: One embodiment includes a battery cell electrode having a first material constructed and arranged to be charged and discharged and having a first potential versus state of charge relationship; a second material having a second potential versus state of charge relationship; wherein said second material is constructed and arranged to become active to transfer ions at a selected state of charge level to produce an observable change in measured potential from said first to said second potential versus relationship, and wherein the amount of the second material ranges from about 2 to about 30 weight percent of the battery cell electrode.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: May 10, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Mark W. Verbrugge, Ping Liu, Elena Sherman
  • Patent number: 9306211
    Abstract: A positive electrode active material is provided to contain: a solid solution lithium-containing transition metal oxide (A) represented by Li1.5[NiaCobMnc[Li]d]O3 (where a, b, c and d satisfy the relations of 0.2?a?0.7, 0.1?d?0.4, a+b+c+d=1.5, 1.1?a+b+c?1.35, and 0<b/a<1); and a lithium-containing transition metal oxide (B) represented by Li1.0Nia?Cob?Mnc?O2 (where a?, b? and c? satisfy the relation of a?+b?+c?=1.0).
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: April 5, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Atsushi Ito, Shinji Yamamoto
  • Patent number: 9293766
    Abstract: A lithium nickel cobalt manganese composite oxide cathode material includes a plurality of secondary particles. Each secondary particle consists of aggregates of fine primary particles. Each secondary particle includes lithium nickel cobalt manganese composite oxide, which is expressed as LiaNi1-b-cCobMncO2. An average formula of each secondary particle satisfies one condition of 0.9?a?1.2, 0.08?b?0.34, 0.1?c?0.4, and 0.18?b+c?0.67. The lithium nickel cobalt manganese composite oxide has a structure with different chemical compositions of primary particles from the surface toward core of each of the secondary particles. The primary particle with rich Mn content near the surface and the primary particle with rich Ni content in the core of the secondary particle of the lithium nickel cobalt manganese composite oxide cathode material have provided the advantages of high safety and high capacity.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: March 22, 2016
    Assignee: FU JEN CATHOLIC UNIVERSITY
    Inventors: Mao-Huang Liu, Hsin-Ta Huang
  • Patent number: 9287540
    Abstract: A separator for use in a lithium ion battery to provide a physical and electrically insulative mechanical barrier between confronting inner face surfaces of a negative electrode and a positive electrode may be formed predominantly of heat-resistant particles. The heat-resistant particles, which have diameters that range from about 0.01 ?m to about 10 ?m, are held together as a thin-layered, handleable, and unified mass by a porous inert polymer material. The high content of heat-resistant particles amassed between the confronting inner face surfaces of the negative and positive electrodes provides the separator with robust thermal stability at elevated temperatures. Methods for making these types of separators by a phase-separation process are also disclosed.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: March 15, 2016
    Assignee: GM Global Technology Operations LLC
    Inventor: Xiaosong Huang
  • Patent number: 9276259
    Abstract: Provided is a lithium secondary battery having improved discharge characteristics in a range of high-rate discharge while minimizing a dead volume and at the same time, having increased cell capacity via increased electrode density and electrode loading amounts, by inclusion of two or more active materials having different redox levels so as to exert superior discharge characteristics in the range of high-rate discharge via sequential action of cathode active materials in a discharge process, and preferably having different particle diameters.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: March 1, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyun Chang, Seo-Jae Lee, Sanghoon Choy, Euiyong Bang, Minchul Jang, Ki-Young Lee
  • Patent number: 9269952
    Abstract: A positive active material for an alkaline secondary battery having a core layer containing nickel hydroxide and a conductive auxiliary layer which coats the surface of the core layer, wherein the conductive auxiliary layer contains a cobalt oxyhydroxide phase and a cerium dioxide phase, and the active material contains lithium.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: February 23, 2016
    Assignee: GS Yuasa International Ltd.
    Inventors: Tadashi Kakeya, Manabu Kanemoto, Mitsuhiro Kodama
  • Patent number: 9260779
    Abstract: An object is to provide a transparent conductive film having favorable transparency and conductivity at low cost. Another object is to reduce the resistivity of a transparent conductive film formed using conductive oxynitride including zinc and aluminum. Another object is to provide a transparent conductive film that is formed using conductive oxynitride including zinc and aluminum. When aluminum and nitrogen are made to be included in a transparent conductive film formed using oxide including zinc to form a transparent conductive film that is formed using conductive oxynitride including zinc and aluminum, the transparent conductive film can have reduced resistivity. Heat treatment after the formation of the transparent conductive film that is formed using conductive oxynitride including zinc and aluminum enables reduction in resistivity of the transparent conductive film.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: February 16, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Junichi Koezuka, Tetsunori Maruyama, Takayuki Saito, Yuki Imoto, Noriaki Uto, Yuta Endo, Hitomi Shionoya, Takuya Hirohashi, Shunpei Yamazaki
  • Patent number: 9240594
    Abstract: The present invention provides a positive electrode active material for lithium ion battery which has a high capacity and good rate characteristics can be provided. The positive electrode active material for lithium ion battery has a layer structure represented by the compositional formula: Lix(NiyMe1-y)Oz (wherein Me represents at least one type selected from the group consisting of Mn, Co, Al, Mg, Cr, Ti, Fe, Nb, Cu and Zr, x denotes a number from 0.9 to 1.2, y denotes a number from 0.70 to 0.79, and z denotes a number of 1.9 or more), wherein the coordinates of the lattice constant a and compositional ratio (Li/M) are within the region enclosed by three lines given by the equations: y=1.108, y=?37.298x+108.27, and y=75.833x?217.1 on a graph in which the x-axis represents a lattice constant a and the y-axis represents a compositional ratio (Li/M) of Li to M, and the lattice constant c is 14.2 to 14.25.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: January 19, 2016
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Kentaro Okamoto, Yoshio Kajiya
  • Patent number: 9236601
    Abstract: To provide a lithium secondary battery which has high capacity while maintaining excellent charge-discharge characteristic, and to provide a cathode of the lithium secondary battery and a plate-like particle for cathode active material to be contained in the cathode. The plate-like particle of cathode active material for a lithium secondary battery of the present invention has a layered rock salt structure, a thickness of 5 ?m or more and less than 30 ?m, 2 or less of [003]/[104] which is a ratio of intensity of X-ray diffraction by the (003) plane to intensity of X-ray diffraction by the (104) plane, a mean pore size of 0.1 to 5 ?m, and a voidage of 3% or more and less than 15%.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: January 12, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Ryuta Sugiura, Nobuyuki Kobayashi, Tsutomu Nanataki
  • Patent number: 9236612
    Abstract: A positive electrode mixture for nonaqueous batteries, is formed by adding 0.5 to 10 wt. parts of an organic acid per 100 wt. parts of an electroconductive additive, to a mixture of a composite metal oxide as a positive electrode active substance, a higher order-structured carbon black as the electroconductive additive, a binder of a fluorine-containing copolymer of at least three comonomers including vinylidene fluoride, tetrafluoroethylene and a flexibility-improving fluorine-containing monomer, and an organic solvent. Further, the mixture is applied on at least one side of an electroconductive sheet, and then dried and compressed to form a positive electrode mixture layer. As a result, it is possible to provide a positive electrode structure having a thick and sound positive electrode mixture layer of a high energy density.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: January 12, 2016
    Assignee: KUREHA CORPORATION
    Inventors: Tamito Igarashi, Kuniyuki Saito, Mitsuyasu Sakuma
  • Patent number: 9236158
    Abstract: A main object of the present invention is to provide a practical slurry having a polar solvent as the dispersion medium for a sulfide solid electrolyte material. The present invention solves the above-mentioned problem by providing a slurry having: a sulfide solid electrolyte material, and a dispersion medium having at least one selected from the group consisting of tertiary amine; ether; thiol; ester having a functional group of a 3 or more carbon number bonded with a carbon atom of an ester bonding and a functional group of a 4 or more carbon number bonded with an oxygen atom of the ester bonding; and ester having a benzene ring bonded with a carbon atom of an ester bonding.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: January 12, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Kubo, Keisuke Omori, Yuichi Hashimoto
  • Patent number: 9225020
    Abstract: The present invention provides a positive electrode active material for a lithium ion battery which has high capacity and good rate characteristics. The positive electrode active material has a layer structure represented by the compositional formula: Li?(Ni?Me1-?)O?, wherein Me represents at least one type selected from the group consisting of Mn, Co, Al, Mg, Cr, Ti, Fe, Nb, Cu and Zr, x denotes a number from 0.9 to 1.2, y denotes a number from 0.5 to 0.65, and z denotes a number of 1.9 or more. The positive electrode active material is selected by measuring the coordinates of the lattice constant a and compositional ratio (Li/M) and selecting materials within the region enclosed by three lines given by the equations: y=?20.186x+59.079, y=35x?99.393, and y=?32.946x+95.78, wherein the x-axis represents a lattice constant a and the y-axis represents a compositional ratio (Li/M) of Li to M.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: December 29, 2015
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Kentaro Okamoto, Yoshio Kajiya
  • Patent number: 9216913
    Abstract: Positive electrode active materials for lithium ion batteries having good characteristics are disclosed. In one embodiment, a positive electrode active material has a layer structure represented by the compositional formula: Lix(NiyMe1-y)Oz (wherein Me represents at least one type selected from the group consisting of Mn, Co, Al, Mg, Cr, Ti, Fe, Nb, Cu and Zr, x denotes a number from 0.9 to 1.2, y denotes a number from 0.80 to 0.89, and z denotes a number of 1.9 or more), wherein the coordinates of the lattice constant a and compositional ratio (Li/M) are within the region enclosed by four lines given by the equations: y=1.01, y=1.10, x=2.8748, and x=2.87731 on a graph in which the x-axis represents a lattice constant a and the y-axis represents a compositional ratio (Li/M) of Li to M, and the lattice constant c is 14.2 to 14.25.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: December 22, 2015
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Kentaro Okamoto, Yoshio Kajiya
  • Patent number: 9214663
    Abstract: In an alkaline storage battery positive electrode, the surface of positive electrode active material particles is uniformly coated with a conductive agent and the alkaline storage battery positive electrode is capable of suppressing an increase in internal battery resistance. The method of fabricating includes: (A) fixing active material particles to a current collector, the active material particles containing, as a main component, nickel hydroxide coated with a conductive agent, the conductive agent containing, as a main component, at least one kind of cobalt compound selected from the group consisting of cobalt hydroxide, tricobalt tetroxide, and cobalt oxyhydroxide; and (B) reducing the cobalt atom in the cobalt compound such that the cobalt atom has an oxidation number of less than +2, by applying a reduction current in an electrolyte solution to the current collector to which the active material particles are fixed, after the step (A).
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: December 15, 2015
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Kosuke Nakayama, Ikuo Nagashima, Kenjin Higaki
  • Patent number: 9203089
    Abstract: A positive active material for a rechargeable lithium battery including a lithium-nickel cobalt manganese composite metal oxide; and 0.18 to 0.25 wt % of sulfur is provided.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Suk-Chul Jung, Young-Chul You, Hak-Seok Kang, Heung-Min Oh, Young-Hoon Do, Tae-Jin Jung
  • Patent number: 9203086
    Abstract: A thermally managed Li-ion battery assembly including an anode and a cathode, wherein at least one of the anode and the cathode includes a thermocrystal metamaterial structure.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: December 1, 2015
    Assignee: The Boeing Company
    Inventors: Nicholas Koumvakalis, Jeffrey H. Hunt
  • Patent number: 9196896
    Abstract: Disclosed herein is a porous silicon-based electrode active material, comprising a silicon phase, a SiOx (0<x<2) phase and a silicon dioxide phase and having a porosity of 7-71%.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: November 24, 2015
    Assignees: LG Chem, Ltd., UNIST Academy-Industry Research Corporation
    Inventors: Hye Ran Jung, Soo Jin Park, Jung In Lee, Yong Ju Lee, Mi Rim Lee, Jae Phil Cho, Je Young Kim, Dong Sub Jung, Yoon Ah Kang
  • Patent number: 9174854
    Abstract: In a titanium oxide compound according to the present invention, the titanium oxide compound is obtained by eluating potassium of potassium tetratitanate expressed by a general formula K2Ti4O9 and performing thermal processing, and, in an X-ray diffraction spectrum of the potassium tetratitanate obtained by using a Cu—K? ray source, between a peak intensity Ia of a (200) plane, a peak intensity Ic of a (004) plane and a peak intensity Ib of a (31-3) plane, a relationship of Ia>Ib>Ic is satisfied.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: November 3, 2015
    Assignee: Kubota Corporation
    Inventors: Kenji Higashi, Hiroshi Okumura
  • Patent number: 9172074
    Abstract: A ply includes a fibrous nonwoven web fabric forming a foundational structure, wherein the foundational structure includes fibers forming first pores and is partially filled with particles, wherein the particles at least partially fill the first pores so as to form regions filled with particles, wherein the particles in the filled regions form second pores, and wherein an average diameter of the particles is greater than an average pore size of more than 50% of the second pores.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: October 27, 2015
    Assignee: CARL FREUDENBERG KG
    Inventors: Christoph Weber, Michael Roth, Peter Kritzer, Gunter Scharfenberger, Rudolf Wagner
  • Patent number: 9166222
    Abstract: Supplemental lithium can be used to stabilize lithium ion batteries with lithium rich metal oxides as the positive electrode active material. Dramatic improvements in the specific capacity at long cycling have been obtained. The supplemental lithium can be provided with the negative electrode, or alternatively as a sacrificial material that is subsequently driven into the negative electrode active material. The supplemental lithium can be provided to the negative electrode active material prior to assembly of the battery using electrochemical deposition. The positive electrode active materials can comprise a layered-layered structure comprising manganese as well as nickel and/or cobalt.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: October 20, 2015
    Assignee: Envia Systems, Inc.
    Inventors: Shabab Amiruddin, Subramanian Venkatachalam, Bing Li, Herman A. Lopez, Sujeet Kumar
  • Patent number: 9159979
    Abstract: A layer includes a main body having a plurality of first pores and at least one crosslinked binder.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: October 13, 2015
    Assignee: CARL FREUDENBERG KG
    Inventors: Christoph Weber, Michael Roth, Iain Smith, Giovanni Gentilcore
  • Patent number: 9159993
    Abstract: In an alkaline battery, a positive electrode 2 containing manganese dioxide, a negative electrode 3, and a separator 4 interposed therebetween are housed in a closed-end cylindrical battery case 1 whose opening 1b is sealed with a gasket. The positive electrode contains graphite in such a manner that a ratio of graphite to the positive electrode is in the range of 2.5-4.3 mass %. A half-width of a 110 plane of the manganese dioxide measured by a powder X-ray diffraction analysis is in the range of 2.00-2.40 degrees.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: October 13, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jun Nunome, Fumio Kato
  • Patent number: 9159994
    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: Grant
    Filed: March 19, 2014
    Date of Patent: October 13, 2015
    Assignee: WILDCAT DISCOVERY TECHNOLOGIES, INC.
    Inventors: Wei Tong, Steven Kaye, David Keogh, Cory O'Neill
  • Patent number: 9153817
    Abstract: Disclosed is a lithium ion secondary battery including: a positive electrode including a positive electrode active material layer comprising a positive electrode active material capable of absorbing and releasing lithium ions, and a positive electrode current collector; a negative electrode including a negative electrode active material layer comprising an alloy-formable active material, and a negative electrode current collector; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode active material layer has an easily swellable resin having a degree of swelling with the non-aqueous electrolyte of 20% or more, and the negative electrode active material layer has a hardly swellable resin having a degree of swelling with the non-aqueous electrolyte of less than 20%.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: October 6, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tatsuki Hiraoka, Taisuke Yamamoto, Katsumi Kashiwagi, Masaya Ugaji
  • Patent number: 9142860
    Abstract: A sodium secondary battery capable of reducing the amount used of a scarce metal element such as lithium and cobalt and moreover, ensuring a larger discharge capacity after repeating charge/discharge as compared with conventional techniques, and a mixed metal oxide usable as the positive electrode active material therefor. The mixed metal oxide comprises Na, Mn and M1 wherein M1 is Fe or Ni, with a Na:Mn:M1 molar ratio being a:(1?b):b wherein a is a value falling within the range of more than 0.5 and less than 1, and b is a value falling within the range of from 0.001 to 0.5. Another mixed metal oxide is a mixed metal oxide represented by the following formula (1): NaaMn1?bM1bO2 (1) wherein M1, a and b each have the same meaning as above. The positive electrode active material for sodium secondary batteries comprises the mixed metal oxide above.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: September 22, 2015
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Satoru Kuze, Masami Makidera, Taketsugu Yamamoto
  • Patent number: 9136508
    Abstract: A secondary battery is configured to reduce contact resistance by improving structures of an electrode tab and a lead. The secondary battery with enhanced contact resistance includes an electrode assembly in which a cathode plate having a cathode tab, an anode plate having an anode tab and a separator are stacked alternately, a battery case accommodating the electrode assembly, and an anode lead electrically connected to the anode tab, wherein the battery case is sealed while accommodating the electrode assembly, and the anode lead and the cathode tab are exposed out of the battery case.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: September 15, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Seong-Yong Kim, Ji-Hyun Kim, Han-Ho Lee
  • Patent number: 9130212
    Abstract: The present invention aims to provide a positive electrode active material for nonaqueous electrolyte secondary batteries which achieves high output and high capacity when used as a positive electrode material. Disclosed is a method for manufacturing the positive electrode active material for nonaqueous electrolyte secondary batteries, the method comprising: a first step, wherein an alkaline solution with a tungsten compound dissolved therein is added to and mixed with a lithium metal composite oxide powder represented by a general formula LizNi1-x-yCoxMyO2 (wherein, 0.10?x?0.35, 0?y?0.35, 0.97?Z?1.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: September 8, 2015
    Assignee: Sumitomo Metal Winning Co., Ltd.
    Inventors: Rei Kokado, Kensaku Mori
  • Patent number: 9126845
    Abstract: The present invention provides a lithium secondary battery having a great output power in a low SOC range and a positive electrode active material for use in the battery. The battery comprises a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode comprises a positive electrode active material in a form of secondary particles as aggregates of primary particles of a lithium transition metal oxide. The positive electrode active material comprises at least one species of Ni, Co and Mn, and further comprises W and Mg. The W is present, concentrated on surfaces of the primary particles while the Mg is present throughout the primary particles. The Mg content in the positive electrode active material is higher than 50 ppm relative, to the total amount of the active material based on the mass.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: September 8, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroki Nagai
  • Patent number: 9090482
    Abstract: A process for preparing modified mixed transition metal oxides, which comprises treating a precursor of a mixed oxide which comprises lithium and at least two transition metals as cations with at least one substance which is selected from compounds of phosphorus, silicon, titanium, boron or aluminum having at least one phenoxy or alkoxy group or at least one halogen.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: July 28, 2015
    Assignee: BASF SE
    Inventors: Martin Schulz-Dobrick, Bastian Ewald, Jordan Keith Lampert
  • Patent number: 9093702
    Abstract: In an embodiment of the invention, an electrolytic solution for a lithium battery including a cathode having a nickel (Ni)-cobalt (Co)-manganese (Mn)-based active material includes a nonaqueous organic solvent, a lithium salt, and adiponitrile. A lithium battery employs the electrolytic solution. A method of operating the battery includes charging the battery to a final charge voltage of about 4.25V or greater.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: July 28, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jin-Sung Kim, Mi-Hyeun Oh, Jin-Hyuk Lim, Su-Hee Han, Na-Rae Park
  • Patent number: 9088047
    Abstract: The invention relates to an electrode for a lithium battery that contains LiFePO4 as electrochemically active material and a binder consisting of polyacrylic acid. The polyacrylic acid has a mean molecular weight greater than or equal to 1,250,000 g·mol?1 and strictly less than 2,000,000 g·mol?1. The percentage of LiFePO4 is greater than 90% by weight and the percentage of polyacrylic acid is less than or equal to 4%, said percentages being calculated with respect to the total weight of the electrode. The invention further relates to a lithium storage battery having a power or energy operating mode that contains the electrode for a lithium battery.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: July 21, 2015
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Nelly Giroud, Helene Rouault, Sebastien Solan
  • Patent number: 9083044
    Abstract: The present invention provides a method for manufacturing an anode active material for a lithium secondary battery comprising the following steps of: a) simultaneously mixing a first metallic salt aqueous solution including nickel, cobalt, manganese and optionally a transition metal, a chelating agent, and a basic aqueous solution in a reactor, and mixing with a lithium raw material and calcining to manufacture a center part including the compound of following Chemical Formula 1: Lix1[Ni1?y1?z1?w1Coy1Mnz1Mw1]O2??Chemical Formula 1 (wherein, 0.9?x1?1.3, 0.1?y1?0.3, 0.0?z1?0.3, 0?w1?0.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: July 14, 2015
    Assignee: ECOPRO CO., LTD.
    Inventors: Jik Soo Kim, Moon Ho Choi, Jong Ryeol Yu, Dong Gui Hoi
  • Patent number: 9077035
    Abstract: A nonaqueous secondary battery containing a positive electrode having a positive electrode mixture layer, a negative electrode, and a nonaqueous electrolyte, wherein the positive electrode comprises, as active materials, two or more lithium-containing transition metal oxides having different average particle sizes, and the lithium-containing transition metal oxide having the smallest average particle size contains one or more of Mg, Ti, Zr, Ge, Nb, Al and Sn.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: July 7, 2015
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Fusaji Kita, Hideki Tsubata, Hiroyasu Inoue
  • Patent number: 9059461
    Abstract: A coated nickel hydroxide powder suitable as a cathode active material for alkaline secondary battery includes nickel hydroxide powder particles which have a coating layer thereon of preferably cobalt hydroxide or cobalt oxyhydroxide.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: June 16, 2015
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Ryuichi Kuzuo, Minoru Shiraoka
  • Publication number: 20150147654
    Abstract: Provided is a lithium mixed transition metal oxide having a composition represented by Formula I of LixMyO2 (M, x and y are as defined in the specification) having mixed transition metal oxide layers (“MO layers”) comprising Ni ions and lithium ions, wherein lithium ions intercalate into and deintercalate from the MO layers and a portion of MO layer-derived Ni ions are inserted into intercalation/deintercalation layers of lithium ions (“reversible lithium layers”) thereby resulting in the interconnection between the MO layers. The lithium mixed transition metal oxide of the present invention has a stable layered structure and therefore exhibits improved stability of the crystal structure upon charge/discharge. In addition, a battery comprising such a cathode active material can exhibit a high capacity and a high cycle stability.
    Type: Application
    Filed: February 5, 2015
    Publication date: May 28, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Hong-Kyu Park, Sun Sik Shin, Sin Young Park, Ho Suk Shin, Jens M. Paulsen
  • Publication number: 20150147650
    Abstract: An antimony based anode material for a rechargeable battery comprises nanoparticles of composition SbMxOy where M is a further element selected from the group consisting of Sn, Ni, Cu, In, Al, Ge, Pb, Bi, Fe, Co, Ga, with 0?x<2 and 0?y?2.5+2x. The nanoparticles form a substantially monodisperse ensemble with an average size not exceeding a value of 30 nm and by a size deviation not exceeding 15%. A method for preparing the antimony based anode material is carried out in situ in a non-aqueous solvent and starts by reacting an antimony salt and an organometallic amide reactant and oleylamine.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Inventors: Maksym V. KOVALENKO, He MENG, Kostiantyn KRAVCHYK, Marc WALTER
  • Publication number: 20150147651
    Abstract: A positive active material for a rechargeable lithium battery including a core including at least one selected from a nickel-based composite oxide represented by Chemical Formula 1 or a lithium manganese oxide represented by Chemical Formula 2; and a coating layer on a surface of the core and including a lithium metal oxide represented by Chemical Formula 3, the positive active material having a peak at a 2? value of about 19° to about 22° and another peak at a 2? value of about 40° to about 45° in an X-ray diffraction pattern using a CuK? ray, is disclosed. A method of preparing the same, and a rechargeable lithium battery including the same, are also disclosed. LiNixCoyMn1-x-yO2??Chemical Formula 1 LiaMnbOc??Chemical Formula 2 Li2MO3??Chemical Formula 3 In Chemical Formulae 1 to 3, x, y, a, b, c, and M are the same as in the detailed description.
    Type: Application
    Filed: May 19, 2014
    Publication date: May 28, 2015
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Ming-Zi Hong, Do-Hyung Park, Seon-Young Kwon, Joong-Ho Moon, Ji-Hyun Kim, Han-Eol Park, Min-Han Kim, Myong-A Woo, Ki-Hyun Kim, Jong-Seo Choi
  • Publication number: 20150147653
    Abstract: A positive active material is disclosed that includes a lithium nickel composite oxide represented by the following Chemical Formula 1, wherein a full width at half maximum (FWHM003) at a (003) plane in X-ray diffraction ranges from about 0.12 to about 0.155, and a rechargeable lithium ion battery including the same.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 28, 2015
    Inventors: Keisuke Nomura, Yuki Takei, Masatsugu Nakano
  • Publication number: 20150147617
    Abstract: The present disclosure provides an anode for a secondary battery, comprising a wire-type current collector; a metallic anode active material layer formed on the surface of the wire-type current collector and comprising a metallic anode active material; and an inert metal layer formed on the surface of the metallic anode active material layer and having no reactivity with lithium.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Yo-Han Kwon, Sang-Wook Woo, Je-Young Kim
  • Publication number: 20150147652
    Abstract: Provided is a new 5 V class spinel exhibiting an operating potential of 4.5 V or more (5 V class), which can suppress the amount of gas generation during high temperature cycles. Suggested is a manganese spinel-type lithium transition metal oxide represented by formula: Li[NiyMn2-(a+b)-y-zLiaTibMz]O4 (wherein 0?z?0.3, 0.3?y<0.6, and M=at least one or more metal elements selected from the group consisting of Al, Mg, Fe and Co), in which in the above formula, the following relationships are satisfied: a>0, b>0, and 2?b/a?8.
    Type: Application
    Filed: April 25, 2013
    Publication date: May 28, 2015
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Natsumi Shibamura, Yanko Marinov Todorov, Shinya Kagei, Yoshimi Hata
  • Publication number: 20150140359
    Abstract: In an aspect, a negative active material, a negative electrode and a lithium battery including the negative active material, and a method of manufacturing the negative active material is provided. The negative active material includes a silicon-based active material substrate; a metal oxide nanoparticle disposed on a surface of the silicon-based active material substrate. An initial irreversible capacity of the lithium battery may be decreased and lifespan characteristics may be improved by using the negative active material.
    Type: Application
    Filed: April 25, 2014
    Publication date: May 21, 2015
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Sang-Eun Park, Young-Ugk Kim, Hyun-Ki Park, Chang-Su Shin, Ui-Song Do, Sung-Su Kim
  • Publication number: 20150140429
    Abstract: A power storage device a positive electrode including a positive electrode active material layer and a negative electrode including a negative electrode active material layer. The positive electrode active material layer includes a plurality of particles of x[Li2MnO3]-(1?x)[LiCo1/3Mn1/3Ni1/3O2] (obtained by assigning 0.5 to x, for example) which is a positive electrode active material, and multilayer graphene with which the plurality of particles of the positive electrode active material are at least partly connected to each other. In the multilayer graphene, a plurality of graphenes are stacked in a layered manner. The graphene contains a six-membered ring composed of carbon atoms, a poly-membered ring which is a seven or more-membered ring composed of carbon atoms, and an oxygen atom bonded to one or more of the carbon atoms in the six-membered ring and the poly-membered ring, which is a seven or more-membered ring.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 21, 2015
    Inventors: Takahiro KAWAKAMI, Hiroatsu TODORIKI, Teppei OGUNI, Takeshi OSADA, Shunpei YAMAZAKI
  • Publication number: 20150140428
    Abstract: An electrode material having excellent electron conductivity, load characteristics, and cycle characteristics is provided. The electrode material includes an electrode active material represented by LixFeyAzBO4 (here, A represents either or both selected from a group consisting of Mn and Co, B represents one or more selected from a group consisting of P, Si, and S, 0?x<4, 0<y<1.5, and 0?z<1.5) as a main component and nickel, particle surfaces of the electrode active material are coated with a carbonaceous film, and a content of the nickel is in a range of 1 ppm to 100 ppm.
    Type: Application
    Filed: January 29, 2015
    Publication date: May 21, 2015
    Inventors: Kouji OONO, Takao KITAGAWA
  • Patent number: 9034519
    Abstract: An electrode material for use in an electrochemical cell, like a lithium-ion battery, is provided. The electrode material may be a negative electrode comprising graphite, silicon, silicon-alloys, or tin-alloys, for example. By avoiding deposition of transition metals, the battery substantially avoids charge capacity fade during operation. The surface coating is particularly useful with negative electrodes to minimize or prevent deposition of transition metals thereon in the electrochemical cell. The coating has a thickness of less than or equal to about 40 nm. Methods for making such materials and using such coatings to minimize transition metal deposition in electrochemical cells are likewise provided.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: May 19, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xingcheng Xiao, Junghyun Kim, Zhongyi Liu