Copper Component Is Active Material Patents (Class 429/220)
  • Patent number: 10439209
    Abstract: An electrode includes an electrode material, which includes: a core part made of an active substance having a polyanion structure having Mn; and a shell part obtained by covering a surface of the core part with carbon. In addition, an amount of water, as measured by Karl Fischer's method when the electrode is held at 250° C. for 40 minutes after adsorbed water is volatilized by heating, is 1500 ppm or less.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: October 8, 2019
    Assignee: DENSO CORPORATION
    Inventors: Koji Ohira, Daisuke Shibata, Shuhei Yoshida, Keita Takahashi
  • Patent number: 10403881
    Abstract: A method for producing a ceramic cathode layer on an electrically conductive substrate includes applying a coating to the electrically conductive substrate, the coating being in a form of a suspension including at least one suspending agent and at least one ceramic material. The method further includes heating the coating in a reducing atmosphere such that the ceramic material is completely or in part reduced to a fusible reaction product, heating the coating in a reducing atmosphere to temperatures above the melting point of the reaction product so as to form a melt, densifying or sintering the coating in a reducing atmosphere at temperatures that are 100° C. greater than a melting temperature of the reaction product, and reoxidizing the densified or sintered coating in an oxidizing atmosphere in a temperature range of between 400° C. and 1,200° C.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: September 3, 2019
    Assignee: FORSCHUNGSZENTRUM JUELICH GMBH
    Inventors: Juergen Dornseiffer, Hans-Gregor Gehrke, Manuel Krott, Olivier Guillon, Sven Uhlenbruck
  • Patent number: 10403888
    Abstract: A method for manufacturing a negative electrode material of a lithium battery is provided. The method includes: covering a metal material and a carbon material on a surface of a silicon material; performing a thermal process for reacting the metal material with the carbon material on the surface of the silicon material thereby forming a silicon composite material and at least one projection on the surface of the silicon material, wherein a free end of the projection is extended to form a head, the silicon composite material is used as the negative electrode material of the lithium battery, the silicon composite material comprises a composite layer forming on the surface of the silicon material, and the composite layer comprises a metal silicide, a metal oxide, a silicon carbide and a silicon oxide.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: September 3, 2019
    Assignee: AUO Crystal Corporation
    Inventors: Han-Tu Lin, An-Li He, Ying-Ying Su, Chan-Tien Chen, Rong-Ruey Jeng, Kun-Fung Lin
  • Patent number: 10374225
    Abstract: A non-aqueous electrolyte secondary battery includes: a negative electrode active material represented by the Formula (1)=? (Si material)+? (carbon material), wherein the Si material is one or more kinds selected from the group consisting of SiOx that is a mixture of amorphous SiO2 particles and Si particles and a Si-containing alloy; ? and ? represent % by mass of each component in the layer; and 80??+??98, 0.1???40, and 58???97.9 are satisfied, and a difference between the maximum value and the minimum value of an area proportion (%) of a binder in an area of the field of view of each image of cross-sections of the layer in a case where a plurality of arbitrary places is selected in a plane of the negative electrode active material layer is within 10%.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: August 6, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kensuke Yamamoto, Wataru Ogihara, Gentaro Kano, Hideaki Tanaka, Youichirou Kondou, Masaaki Suzuki, Tsuyoshi Tanabe, Takashi Nakano
  • Patent number: 10367192
    Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: July 30, 2019
    Assignee: StoreDot Ltd.
    Inventors: Doron Burshtain, Nir Kedem, Daniel Aronov
  • Patent number: 10355302
    Abstract: A microstructured substrate includes a plurality of at least one elementary microstructure. An electrical storage device, and more particularly an all-solid-state battery, can include the microstructured substrate.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: July 16, 2019
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE NANTES
    Inventors: Christophe Lethien, Pascal Tilmant, Etienne Eustache, Nathalie Rolland, Thierry Brousse
  • Patent number: 10329162
    Abstract: Provided are methods for preparing a nickel-cobalt-aluminum precursor material and a cathode material with a gradient distribution of aluminum element. The precursor material and the cathode material based on the precursor material prepared by the methods are of sphere or sphere-like shapes in which the distribution of the aluminum element is changed in a gradient manner, and the particle size distribution is uniform. The synthesized material has a high tap density, is not sensitive to ambient carbon dioxide and moisture, and has a good processability, a high specific capacity and a good stability property.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: June 25, 2019
    Assignee: Guangzhou Libode New Material Co., Ltd.
    Inventors: Ceng Wu, Chaopu Tan, Liang Yan, Dianhua Huang, Ruixiang Chen, Zheng Zhang, Changjie Yuan, Hongjun Luo
  • Patent number: 10326135
    Abstract: Battery systems using doped conversion materials as the active material in battery cathodes are provided herein. Doped conversion material may include a defect-rich structure or an amorphous or glassy structure, including at least one or more of a metal material, one or more oxidizing species, a reducing cation species, and a dopant. Methods for fabricating batteries and battery systems with doped conversion material are also provided herein.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: June 18, 2019
    Assignee: QuantumScape Corporation
    Inventors: Rainer J. Fasching, Ghyrn E. Loveness, Aram Yang, Arnold Allenic, Timothy Holme
  • Patent number: 10312506
    Abstract: A process for the preparation of carbon-coated lithium transition metal phosphate having the formula Li0.9+xMyMn1?yPO4 and its use as cathode material in secondary lithium-ion batteries wherein the process includes few synthesis steps which can be conducted easily, therefore providing a low cost process and results in a complete reaction of the starting material compounds or the mixtures thereof. At least one starting material compound is dispersed or dissolved in an essentially aqueous medium and heated to a temperature between 50° C. and 100° C. prior to addition of the remaining starting material compounds.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: June 4, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Nicolas Tran, Genovefa Wendrich
  • Patent number: 10312504
    Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: June 4, 2019
    Assignee: StoreDot Ltd.
    Inventors: Doron Burshtain, Nir Kedem, Daniel Aronov
  • Patent number: 10297360
    Abstract: A negative electrode active material includes a silicon-containing alloy having a composition represented by: SixSnyMzAa (A is unavoidable impurities, M is one or more transition metal elements, x, y, z, and a represent values of percent by mass, and 0<x<100, 0<y<100, 0<z<100, and 0?a<0.5 and x+y+z+a=100). The silicon-containing alloy has a lattice image subjected to Fourier transform processing to obtain a diffraction pattern and a size determined as an average value of maximum five major axis diameters of regions having a periodic array from a Fourier image obtained by subjecting a diffraction ring portion present in a width of from 0.7 to 1.0 when a distance between Si regular tetrahedrons is 1.0 in this diffraction pattern to inverse Fourier transform is 10 nm or less.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: May 21, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomohiro Kaburagi, Manabu Watanabe, Nobutaka Chiba, Humihiro Miki, Makoto Tanimura
  • Patent number: 10283766
    Abstract: A negative electrode active material for a lithium secondary battery according to an exemplary embodiment of the present invention includes an alloy containing silicon (Si), titanium (Ti), and iron (Fe), wherein the degree of amorphization of the alloy is raised by 40% or more by further adding copper (Cu) to the alloy.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: May 7, 2019
    Assignee: ILJIN ELECTRIC CO., LTD.
    Inventors: Cheol Ho Park, Seon Kyong Kim, Seung Chul Lee, Young Pil Choi, Hyang Yeon Kim, Jae Woong Kim, Min Seok Sung
  • Patent number: 10283769
    Abstract: In a non-aqueous organic electrolyte secondary cell, the counter charge capacity ratio (A/C) between the cathodes and the anodes represented by the following formula is set to within the range from 1.10 to 1.35, A/C=?×(anode charge capacity×?)/(cathode charge capacity×?×?) where ? is the electrode area coefficient defined as (anode area)/(cathode area) and ?>1.0, ? is a design coefficient and 0.85???1.15, ? is the charge-discharge efficiency ratio defined as (charge-discharge ratio at 25° C.)/(charge-discharge ratio at 55° C.), and ? is the temperature characteristic coefficient defined as (charge capacity at 55° C.)/(charge capacity at 25° C.).
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: May 7, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Shinji Yamamoto, Hideaki Tanaka, Hajime Satou
  • Patent number: 10243205
    Abstract: A negative electrode for nonaqueous electrolyte secondary batteries including a negative electrode current collector and a negative electrode mixture layer placed on the negative electrode current collector. The negative electrode mixture layer is a layer of a mixture of a negative electrode active material, a binding agent, and a conductive agent. The binding agent includes a binding agent A made of a rubber polymeric compound and a binding agent B made of a water-soluble polymeric compound. In the case where a through-thickness cross section of the negative electrode mixture layer is halved into a current collector-side region and a surface-side region, the amount of the binding agent A in the current collector-side region is larger than the amount of the binding agent A in the surface-side region and the amount of the conductive agent in the current collector-side region is larger than the amount of the conductive agent in the surface-side region.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: March 26, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Masanori Sugimori, Katsunori Yanagida
  • Patent number: 10243215
    Abstract: A positive electrode active material for lithium ion secondary battery includes: active material particles including one or more compounds including Li and a transition metal; and a coating layer coating at least a part of a surface of the active material particles. The coating layer includes at least one of graphene or multilayer graphene The coating layer has a Raman spectrum with a G band (a peak of 1530 cm?1 to 1630 cm?1), a D band (a peak of 1300 cm?1 to 1400 cm?1), and a 2D band (a peak of 2650 cm?1 to 2750 cm?1). At least the intensity of the 2D band normalized by the intensity of the G band (2Dint/Gint) satisfies 0.05?2Dint/Gint.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: March 26, 2019
    Assignee: TDK CORPORATION
    Inventors: Junpei Shitaba, Hideaki Seki, Hiroyuki Miyabara
  • Patent number: 10210966
    Abstract: An insulated wire, containing: a rectangular conductor; and a thermoplastic resin layer on the rectangular conductor, wherein an adhesion strength between the thermoplastic resin layer and the rectangular conductor for a pair of sides of the rectangular conductor opposed to and an adhesion strength between the thermoplastic resin layer and the rectangular conductor for the other pair of sides of the rectangular conductor opposed to are different from each other.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 19, 2019
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.
    Inventors: Satoko Yamoto, Hideo Fukuda, Makoto Oya, Keisuke Ikeda
  • Patent number: 10205167
    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: August 27, 2015
    Date of Patent: February 12, 2019
    Assignee: Wildcat Discovery Technologies, Inc.
    Inventors: Wei Tong, Steven Kaye, David Keogh, Cory O'Neill
  • Patent number: 10199640
    Abstract: Alloy particles for negative electrode active material are proposed, which can impart anti-oxidation property to Si-containing alloy particles, and suppress oxidation of the negative electrode active material due to electrolyte at a considerably high level. A negative electrode material of secondary battery is achieved by a negative electrode material of secondary battery which is capable of intercalating and de-intercalating lithium and which consists of alloy particles including a silicon phase, a metal phase and bismuth, in which a crystallite size of the silicon phase is 10 nm or smaller, and the metal phase includes at least one kind of metal alloying with silicon but not with lithium, and the negative electrode material includes primary particles formed at least by the silicon and the metals.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: February 5, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Keiko Matsubara, Yoshiyuki Igarashi, Mi-Rim Lee, Hye-Ran Jung, Yong-Ju Lee
  • Patent number: 10193187
    Abstract: A method of modifying the solubility of polysulfide anions using functionalized ionic liquids.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: January 29, 2019
    Assignee: NOHMS Technologies, Inc.
    Inventors: Surya Moganty, Jonathan Lee, Gabriel Torres, Luigi Abbate
  • Patent number: 10177376
    Abstract: Disclosed are a cathode active material including a lithium transition metal oxide based on at least one transition metal selected from the group consisting of Ni, Mn and Co, wherein at least one hetero element selected from the group consisting of Ti, Co, Al, Cu, Fe, Mg, B, Cr, Bi, Zn and Zr is located at a surface portion of or inside the lithium transition metal oxide, and a secondary battery including the same. The cathode active material according to the present invention includes predetermined hetero elements at a surface thereof and therein, and, as such, a secondary battery based on the cathode active material may exhibit excellent high-speed charge characteristics and lifespan characteristics.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: January 8, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Byung Chun Park, Seong Hoon Kang, Minsuk Kang, Wang Mo Jung, Ho Suk Shin, Sang Min Park, Geungi Min
  • Patent number: 10170753
    Abstract: The present invention relates to a nano-silicon composite negative electrode material, including graphite matrix and nano-silicon material homogeneously deposited inside the graphite matrix, wherein the nano-silicon composite negative electrode material is prepared by using silicon source to chemical-vapor deposit nano-silicon particles inside hollowed graphite. The nano-silicon composite negative electrode material of the present invention has features of high specific capacity (higher than 1000 mAh/g), high initial charge-discharge efficiency (higher than 93%) and high conductivity. The preparation process of the present invention is easy to operate and control, and has low production cost and is suitable for industrial production.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: January 1, 2019
    Assignee: Shenzhen BTR New Energy Materials Inc.
    Inventors: Jianguo Ren, Min Yue, Youyuan Huang, Xueqin He
  • Patent number: 10164254
    Abstract: A composite anode active material includes: a silicon anode active material, a metal nitride; and a metal fluoride, wherein the metal nitride and the metal fluoride are each independently disposed on at least one surface of the silicon anode active material.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: December 25, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Jinsoo Mun, Gyusung Kim, Heechul Jung, Junho Park
  • Patent number: 10158143
    Abstract: A method for producing a lithium solid state battery having a solid electrolyte membrane with high Li ion conductivity, in which firm interface bonding is formed on both sides of the membrane, comprising steps of: a membrane-forming step of forming CSE1 not containing a binder, composed of a sulfide solid electrolyte material, on a cathode active material layer by an AD method and ASE1 not containing a binder, composed of a sulfide solid electrolyte material, on an anode active material layer by an AD method, and a pressing step of forming SE1 with the CSE1 and the ASE1 integrated by opposing and pressing the CSE1 and the ASE1, wherein the SE1 such that an interface between the CSE1 and the ASE1 disappeared is formed by improving denseness of the CSE1 and the ASE1 in the pressing step.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: December 18, 2018
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Muneyasu Suzuki, Jun Akedo, Takashi Takemoto
  • Patent number: 10153487
    Abstract: Provided is a novel lithium complex oxide containing molybdenum. A complex oxide represented by the following compositional formula: LixMyMozO wherein M is one or two or more selected from the group consisting of Mn, Ru, Sn, Mg, Al, Ti, V, Cr, Fe, Co, Ni, Cu, and Zn; x is in the range of 0.60 to 0.75; y is in the range of 0.15 to 0.25; and z is in the range of 0.075 to 0.20.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: December 11, 2018
    Assignees: JX Nippon Mining & Metals Corporation, Tokyo University Of Science Foundation
    Inventors: Naoaki Yabuuchi, Shinichi Komaba, Yoshio Kajiya
  • Patent number: 10135061
    Abstract: A composite anode active material, the composite including: a metal particle; a carbon-containing material, and a garnet-type lithium ion conductor, wherein an amount of the garnet-type lithium ion conductor is greater than 1 part by weight and less than 5 parts by weight, based on 100 parts by weight of a total weight of the metal particle, the carbon-containing material, and the garnet-type lithium ion conductor.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: November 20, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Jaemyung Lee, Seongho Jeon, Hosang Park, Byoungsun Lee, Kanghee Lee
  • Patent number: 10116003
    Abstract: Provided are negative electrode assemblies containing lithium sulfide anolyte layers, electrochemical cells including these assemblies, and methods of forming thereof. An anolyte layer may be disposed over a metal layer of a current collector and may be used to separate the current collector from the rest of the electrolyte. The metal layer may include copper or any other suitable metal that forms in situ a metal sulfide during fabrication of the electrode assembly. Specifically, a sulfur containing layer, such as a solid electrolyte, is formed on the metal layer. Sulfur from this layer reacts with the metal of the current collector and forms a metal sulfide layer. When lithium is later added to the metal sulfide layer, a lithium sulfide anolyte layer is formed while the metal layer is recovered. Most, if not all operations may, be performed in situ during fabrication of electrochemical cells.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: October 30, 2018
    Assignee: QuantumScape Corporation
    Inventors: Marie Mayer, Joseph Han
  • Patent number: 10096832
    Abstract: A preparation method of a battery composite material includes steps of providing phosphoric acid, a first metal source, a second metal source and water, processing a reaction of the first metal source, the second metal source, the phosphoric acid and the water to produce a first product, calcining the first product to produce a first precursor or a second precursor, among which each of the first precursor and the second precursor is a solid-solution containing first metal and second metal, and processing a reaction of the first precursor or the second precursor, and a first reactant to obtain a reaction mixture, and then calcining the reaction mixture to produce the battery composite material. As a result, the battery product has two stable charging and discharging platforms, such that the present invention achieves the advantages of enhancing the stability and the electric performance.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: October 9, 2018
    Assignee: ADVANCED LITHIUM ELECTROCHEMISTRY CO., LTD.
    Inventors: Han-Wei Hsieh, Hsiang-Pin Lin, Chen-Tsung Hung
  • Patent number: 10062889
    Abstract: A lithium ion secondary battery that includes an electrode smoothing layer formed from a composite material including an active material and an organic substance and provided on the surface of at least one of a positive electrode and a negative electrode, and a lithium-ion permeable ceramic separator layer formed from a composite material including insulating inorganic microparticles and an organic substance provided so as to be opposed to at least one of the positive electrode and negative electrode with the electrode smoothing layer interposed therebetween.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: August 28, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yosuke Tanaka, Manabu Sawada, Yusuke Ueba
  • Patent number: 10050270
    Abstract: A lithium-ion secondary battery including positive and negative electrodes, a separator element, an electrical conductor element and a binder, wherein the positive electrode includes a lithium-containing metal phosphate compound coated with a carbon material having at least one phase selected from a graphene phase and an amorphous phase, and further includes carbon black and a fibrous carbon material and wherein the negative-electrode material includes a graphite carbon material having at least one carbon phase selected from a graphene phase and an amorphous phase, and further includes carbon black and a fibrous carbon material, and wherein the binder includes a water-soluble synthetic resin or a water-dispersible synthetic resin. The most preferred positive electrode includes LiFePO4, The most preferred negative electrode includes artificial graphite or graphitazable powder. The most preferred binder is carboxyl methyl cellulose further including a surface active agent.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: August 14, 2018
    Assignee: HYDRO-QUEBEC
    Inventors: Karim Zaghib, Shinji Saito, Abdelbast Guerfi, Takehiko Sawai, Kazunori Urao, Jun Nakagawa, Francis Barray, Joël Fréchette
  • Patent number: 10044033
    Abstract: A negative electrode active material for a lithium ion secondary battery, comprising silicon, copper and oxygen as major constitutional elements, the negative electrode active material for a lithium ion secondary battery, containing fine particles of silicon having an average crystallite diameter (Dx) measured by an X-ray diffractometry of 50 nm or less, and having elemental ratios, expressed by molar ratios, Cu/(Si+Cu+O) and O/(Si+Cu+O) of from 0.02 to 0.30, wherein the negative electrode active material contains an intermetallic compound of silicon and copper.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: August 7, 2018
    Assignees: TOHOKU UNIVERSITY, DOWA HOLDINGS CO., LTD.
    Inventors: Norihiro Shimoi, Kazuyuki Tohji, Yasumitsu Tanaka, Qiwu Zhang, Hiroyuki Kai
  • Patent number: 10008713
    Abstract: Apparatus and techniques are described herein for providing a bipolar battery plate such as can be included as a portion of an energy storage device assembly, such as a battery. The bipolar battery plate can include a silicon substrate. A first metal layer can be deposited on a first surface of the rigid silicon substrate, and a different second metal layer can be deposited on a second surface of the rigid silicon substrate opposite the first surface. The first and second metal layers can be annealed to form a first silicide on the first surface and a different second silicide on the second surface of the rigid silicon substrate.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: June 26, 2018
    Assignee: Gridtential Energy, Inc.
    Inventors: Collin Kwok Leung Mui, Daniel Jason Moomaw, Peter Gustave Borden
  • Patent number: 9991511
    Abstract: A composite cathode active material includes: a core including a material capable of intercalation and deintercalation of lithium; and a first coating layer on at least one portion of the core, where the first coating layer includes zirconium oxide. A lithium battery includes a cathode including the composite cathode active material. Methods of preparing the composite cathode active material are also disclosed.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: June 5, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yu-Mi Song, Ming-Zi Hong, Jeong-Hoon Kim, Do-Hyung Park, Min-Han Kim, Joong-Ho Moon, Han-Eol Park, Kyoung-Hyun Kim, Dong-Jin Kim, Jeon-Jin Choi, Gyu-Ran Jeon, Sun-Ho Kang
  • Patent number: 9979023
    Abstract: The present invention provides a positive active material including a lithium-containing compound represented by the following Chemical Formula 1 and a rechargeable lithium battery including the positive active material. LiFe1-x-zMxM?zPyO4.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 22, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jay-Hyok Song, Sang-In Park, Ji-Hyun Kim, Ki-Hyun Kim, Yong-Chan You, Ha-Young Lee
  • Patent number: 9960422
    Abstract: A positive electrode active material according to an aspect of the present invention for nonaqueous electrolyte secondary batteries contains a lithium transition metal composite oxide that has a compound in contact with its surface, the compound containing a rare earth metal and silicic acid and/or boric acid. A positive electrode according to an aspect of the present invention has a positive electrode collector and a positive electrode mixture layer formed on at least one surface of the positive electrode collector. The positive electrode mixture layer contains a positive electrode active material, a binder, and a conductive agent. The positive electrode active material contains a lithium transition metal composite oxide that has a compound in contact with its surface, the compound containing a rare earth metal and silicic acid and/or boric acid.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: May 1, 2018
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Atsushi Ogata, Takeshi Ogasawara
  • Patent number: 9934911
    Abstract: The present invention provides a nonaqueous electrolytic solution capable of improving electrochemical characteristics in a broad temperature range and an energy storage device using the same. [1] A nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing, as an additive, an SO4 group-containing compound having a specified structure and [2] an energy storage device including a positive electrode, a negative electrode, and a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolytic solution contains, as an additive, 0.001% by mass or more and less than 5% by mass of an SO4 group-containing compound having a specified structure in the nonaqueous electrolytic solution, are disclosed.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: April 3, 2018
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Kei Shimamoto, Koji Abe, Yuichi Kotou, Shoji Shikita
  • Patent number: 9929408
    Abstract: To inhibit degradation of charge and discharge cycle characteristics of a secondary battery. To suppress generation of defects due to expansion and contraction of an active material in a negative electrode. To inhibit deterioration of an electrode due to changes in its form. An electrode member including a current collector, an active material, and a porous body is used. The porous body is in contact with one surface of the current collector and includes a plurality of spaces. The active material is located in the space in the porous body. The space has a larger size than the active material.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: March 27, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Nobuhiro Inoue, Ryota Tajima, Naoki Kurihara, Junpei Momo
  • Patent number: 9899677
    Abstract: A positive active material for a rechargeable lithium battery including a lithium metal oxide represented by the following Chemical Formula 1, a method of preparing the same, and a rechargeable lithium battery including the same. LiaMeM?kO2??Chemical Formula 1 In Chemical Formula 1, Me is NixCoyMnz, M? is Mg, Al, Fe, P, or a combination thereof, 0.955?a<1.05, 0.001?k?0.1, 0.5<x?0.65, 0.1<y?0.25, 0.1<z?0.25, x+y+z+k=1, M? is doped at a Li site and at least one of Ni, Co, and Mn sites, M? is doped in an amount at 0.1 mol % or 10 mol % or between 0.1 mol % and 10 mol % based on the total amount of Ni, Co, and Mn, and a doping mole ratio of M? doped at the Li site with respect to a Me site is in the following range: about 0.001?ALi/AMe?about 0.5.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: February 20, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ji-Hyun Kim, Do-Hyung Park, Seon-Young Kwon, Min-Han Kim, Yu-Mi Song, Kyoung-Hyun Kim
  • Patent number: 9893356
    Abstract: The cathode active material for a nonaqueous electrolyte secondary battery according to an aspect of the present disclosure mainly comprises a compound represented by a composition formula: LixNay(Li?Na?Mn1????)O2, where x, y, ?, and ? satisfy 0.75?x?1.0, 0<y?0.01, 0.75<x+y?1, 0.16???0.3, 0???0.01, and 0.2??+??0.3.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: February 13, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryuichi Natsui, Kensuke Nakura
  • Patent number: 9887430
    Abstract: The present invention provides a lithium secondary battery having a positive electrode provided with a positive electrode active material formed of a lithium-manganese complex oxide represented by the general formula Lix(MnaCobNic)2?x?yMyO2??(1) (where, a, b, and c are 0<a<0.65, 0?b, and 0?c, and x and y are 0<x<1.3 and 0<y<0.05), with the element M being an element that has a larger bond energy with oxygen than Mn, Co, or Ni.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: February 6, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Junpei Terashima
  • Patent number: 9865872
    Abstract: The present invention relates to a lithium-ion battery. The lithium-ion battery comprises a positive electrode containing, as a principal component, a lithium oxide having a layered rock-salt structure and represented by chemical formula: LixM1yM2zO2-d. In this chemical formula, 1.16?x?1.32, 0.33?y?0.63, 0.06?z?0.50, M1 represents a metal ion selected from Mn, Ti and Zr, or a mixture thereof, and M2 represents a metal ion selected from Fe, Co, Ni and Mn, or a mixture thereof. The lithium-ion battery also comprises a negative electrode containing, as a principal component, a material capable of intercalating/deintercalating lithium ions, wherein peroxide ion(s) (O22?) are contained in the positive electrode.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: January 9, 2018
    Assignee: NEC Corporation
    Inventors: Kentaro Nakahara, Sadanori Hattori
  • Patent number: 9843038
    Abstract: A positive electrode for a lithium ion secondary battery, the positive electrode including: a coated particle including a positive active material particle and a reactive layer on the surface of the positive active material particle; and a sulfide-containing solid electrolyte particle which is in contact with the coated particle, wherein the reactive layer includes a reactive element other than lithium and oxygen, wherein the reactive element has a reactivity with the sulfide-containing solid electrolyte particle which is greater than with a reactivity of the reactive element with a transition metal element included in the positive active material particle, and wherein a ratio of a thickness of the reactive layer to a particle diameter of the positive active material particle is in a range of about 0.0010 to about 0.25.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: December 12, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Takanobu Yamada, Yasuaki Matsuda, Masaki Matsui, Yuichi Aihara, Nobuyuki Imanishi
  • Patent number: 9799886
    Abstract: The present invention provides novel cathodes having a reduced resistivity and other improved electrical properties. Furthermore, this invention also presents methods of manufacturing novel electrochemical cells and novel cathodes. These novel cathodes comprise a silver material that is doped with a silicate material.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: October 24, 2017
    Assignee: ZPower, LLC
    Inventors: Jeffrey V. Ortega, Hongxia Zhou, George W. Adamson
  • Patent number: 9793540
    Abstract: The present invention provides a positive electrode active material for non-aqueous electrolyte secondary battery comprising: core particles comprising a lithium transition metal composite oxide represented by the general formula: LiaNi1-x-yCoxM1yM2zO2 ?wherein 1.00?a?1.50, 0.00?x?0.50, 0.00?y?0.50, 0.00?z?0.02, 0.00?x+y?0.70, M1 is at least one element selected from the group consisting of Mn and Al, M2 is at least one element selected from the group consisting of Zr, Ta, Nb and Mo, and a surface layer located on a surface of the core particles, and the surface layer comprising boron, tungsten and oxygen; wherein the surface layer is obtained by heat-treating the core particles; a raw material compound (1) that is at least one compound selected from the group consisting of boron oxide, an oxo acid of boron, and a salt of an oxo acid of boron; and tungsten oxide (VI).
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: October 17, 2017
    Assignee: NICHIA CORPORATION
    Inventor: Kenta Kawai
  • Patent number: 9755197
    Abstract: Provided is a nonaqueous electrolyte secondary battery including a bottomed cylindrical positive electrode casing and a negative electrode casing which is fixed to an opening of the positive electrode casing through a gasket. The opening of the positive electrode casing is caulked to the negative electrode casing side to seal the accommodation space. A diameter d is in a range of 6.6 mm to 7.0 mm, and a height h1 is in a range of 1.9 mm to 2.3 mm.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: September 5, 2017
    Assignee: SEIKO INSTRUMENTS INC.
    Inventor: Takumi Sawayama
  • Patent number: 9722244
    Abstract: A compound of formula Li4+xMnM1aM2bOc wherein: M1 is selected from the group consisting in Ni, Mn, Co, Fe and a mixture thereof; M2 is selected from the group consisting in Si, Ti, Mo, B, Al and a mixture thereof; with: ?1.2?x?3; 0<a?2.5; 0?b?1.5; 4.3?c?10; and c=4+a+n·b+x/2 wherein n=2 when M2 is selected from the group consisting in Si, Ti, Mo or a mixture thereof; and n=1.5 when M2 is selected from the group consisting in B, Al or a mixture thereof; and n=0 if b=0.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: August 1, 2017
    Assignees: SAFT, UMICORE
    Inventors: Christian Jordy, Georges Caillon, Thierry Hezeque, Stephane Levasseur, Nina V. Kosova, Evgeniya T. Devyatkina
  • Patent number: 9722243
    Abstract: The present invention provides a negative active material for a secondary battery with an improved expansion rate, which is formed by a formula below, and in which an expansion rate of the negative active material after 50 cycles is 70 to 150%, and an amorphization degree on a matrix within an alloy has a range of 25% or more, and Si has a range of 60 to 70%, Ti has a range of 9 to 14%, Fe has a range of 9 to 14%, and Al has a range larger than 1% and less than 20%. Formula: SixTiyFezAlu (x, y, z, and u are at %, x: 1?(y+z+u)).
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: August 1, 2017
    Assignee: ILJIN ELECTRIC CO., LTD.
    Inventors: Cheol-Ho Park, Seon-Kyong Kim, Young-Pil Choi, Min-Hyun Kim, Myeong-Han Kim
  • Patent number: 9722279
    Abstract: An all-solid-state metal-metal battery with both high energy density and high power density is provided. The battery has an anolyte including at least one active anode metal ion conducting ceramic solid and a catholyte including at least one active cathode metal ion conducting ceramic solid sandwiched between an anode including an alkali metal or an alkaline earth metal as the active anode metal and an cathode including a transition metal as the active cathode metal. Prior to the initial charge, the battery may have an anode current collector devoid of the active anode metal or a cathode current collector devoid of the active cathode metal.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: August 1, 2017
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Fuminori Mizuno, Timothy S Arthur, Ruigang Zhang
  • Patent number: 9634327
    Abstract: In the case where a silicon substance having a high theoretical capacity as a negative electrode active material for a lithium ion secondary battery is used as a negative electrode active material, such a negative electrode active material is provided that has a high initial battery capacity and suffers less deterioration in performance even when many cycles of charge and discharge are repeated. A lithium ion secondary battery using the negative electrode active material is provided. Silicon and copper (II) oxide, or silicon, metallic copper and water are pulverized and simultaneously mixed in a pulverization device, thereby providing a negative electrode active material that has good cycle characteristics and a large battery capacity.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: April 25, 2017
    Assignees: TOHOKU UNIVERSITY, DOWA HOLDINGS CO., LTD.
    Inventors: Norihiro Shimoi, Kazuyuki Tohji, Yasumitsu Tanaka, Qiwu Zhang, Hiroyuki Kai
  • Patent number: 9608288
    Abstract: A positive electrode for a lithium ion secondary battery, the positive electrode including: a coated particle including a positive active material particle and a reactive layer on the surface of the positive active material particle; and a sulfide-containing solid electrolyte particle which is in contact with the coated particle, wherein the reactive layer includes a reactive element other than lithium and oxygen, wherein the reactive element has a reactivity with the sulfide-containing solid electrolyte particle which is greater than with a reactivity of the reactive element with a transition metal element included in the positive active material particle, and wherein a ratio of a thickness of the reactive layer to a particle diameter of the positive active material particle is in a range of about 0.0010 to about 0.25.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: March 28, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Takanobu Yamada, Yasuaki Matsuda, Masaki Matsui, Yuichi Aihara, Nobuyuki Imanishi
  • Patent number: 9590246
    Abstract: Provided is a method for producing a lithium metal phosphate, and the method comprises initiating and allowing to proceed, in the presence of a polar solvent, a conversion reaction of a lithium ion (Li+) source such as lithium hydroxide, a divalent transition metal ion (M2+) source such as a divalent transition metal sulfate, and a phosphate ion (PO43?) source such as phosphoric acid into a lithium metal phosphate at 150° C. or higher. The conversion reaction is initiated and allowed to proceed by bringing solution A containing one of a lithium ion, a divalent transition metal ion, and a phosphate ion into contact with solution B containing the others of these ions at 150° C. or higher, or by adjusting the pH of solution C that has a pH of lower than 4 and contains a lithium ion, a divalent transition metal ion, and a phosphate ion to 4 or higher.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: March 7, 2017
    Assignee: SHOWA DENKO K.K.
    Inventors: Akihiko Shirakawa, Isao Kabe, Akihisa Tonegawa