Alkalated Transition Metal Chalcogenide Component Is Active Material Patents (Class 429/231.1)
  • Patent number: 11223033
    Abstract: Provided is a positive electrode active material for nonaqueous electrolyte secondary batteries that suppresses the gelling of a positive electrode mixture material paste and has high weather resistance, a production method thereof, and the like. A method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries includes cleaning a powder formed of a lithium-nickel composite oxide represented by a general formula LizNi1-x-yCoxMyO2 where 0?x?0.35; 0?y?0.10; 0.95?z?1.10; and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al with an aqueous lithium carbonate solution and drying the cleaned powder.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: January 11, 2022
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hiroko Oshita, Kazuomi Ryoshi
  • Patent number: 11217817
    Abstract: A rechargeable lithium ion battery including: a positive electrode including coated particles, wherein each particle includes a core and a coating disposed thereon, wherein the core consists of Li, M, and O, and the coating includes Li, M, O, and AI2O3; wherein: M is (Niz(Ni1/2Mn1/2)yCox)1?kAk; 0.15?z?0.50; 0.17?x?0.30; 0.35?y?0.75; 0<k<0.1; x+y+z=1; and A includes Al and optionally at least one additional metal dopant selected from Mg, Zr, W, Ti, Cr, V, Nb, B, and Ca, and combinations thereof; and wherein the Li and M are present in the core in a molar ratio of Li to M of at least 0.95 and no greater than 1.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: January 4, 2022
    Assignee: Umicore
    Inventors: Jeffrey R. Dahn, Rajalakshmi Senthil Arumugam, Jens Paulsen, Xin Xia, Jing Zhang
  • Patent number: 11201334
    Abstract: A positive electrode is provided with: a positive electrode current collector constituted of aluminum as the main component; a positive electrode mixture layer formed on the positive electrode current collector aid containing a lithium-containing transition metal oxide; and a protective layer interposed between the positive electrode current collector and the positive electrode mixture layer. The protective layer contains inorganic particles, a conductive agent, and a binder material. In the positive electrode, the peel strength between the positive electrode current collector and the protective layer is higher than the peel strength between the protective layer and the positive electrode mixture layer.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: December 14, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuki Endo, Tomoki Shiozaki, Yuji Oura
  • Patent number: 11196089
    Abstract: An electricity storage device includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and an electrolyte that includes an organic crystal layer including a layered structure and an organic solvent introduced into the organic crystal layer and that is interposed between the positive electrode and the negative electrode to conduct alkali metal ions. The layered structure includes an organic backbone layer containing an aromatic dicarboxylic acid anion having an aromatic ring structure, and an alkali metal element layer containing an alkali metal element that is coordinated with oxygen contained in a carboxylic acid of the organic backbone layer to form a framework. At least one of the positive electrode and the negative electrode adsorbs and desorbs the ions to store and release electric charge.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: December 7, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventor: Nobuhiro Ogihara
  • Patent number: 11177472
    Abstract: Disclose are a cathode of an all-solid lithium battery, and a secondary battery system using the same. The cathode includes a lithium composite, and a method of manufacturing the lithium composite comprises: dispersing a solid electrolyte to be uniformly distributed in the pores of a mesoporous conductor to provide a solid electrolyte composite, and coating the solid electrolyte composite on the surface of a lithium compound including nonmetallic solids such as S, Se, and Te.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: November 16, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hee Jin Woo, Dae Gun Jin, Hee Yeon Ryu, Yoon Ji Lee, Yong Gu Kim, Na Ry Shin, Eun Ji Kwon, Sang Jin Park
  • Patent number: 11177471
    Abstract: An electrochemically active material includes a silicon alloy material having the formula: SiwM1xCyOz, where w, x, y, and z represent atomic % values and w+x+y+z=1; M1 comprises a transition metal; w>0; x>0; y?0; and z?0. The electrochemically active material also includes a metal-based material having the formula: M2aObAc, where a, b, and c represent atomic % values and a+b+c=1; M2 comprises a metal; A is an anion; a>0; b?0; and c?0.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: November 16, 2021
    Assignee: JOHNSON MATTHEY PUBLIC COMPANY LIMITED
    Inventor: Fuxia Sun
  • Patent number: 11171366
    Abstract: A method for controlling a non-aqueous electrolyte secondary battery that includes connecting two non-aqueous electrolyte secondary batteries in series and setting the discharge cutoff voltage to 3.4 V to 4.6 V.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: November 9, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Masaharu Itaya
  • Patent number: 11165061
    Abstract: The present invention relates to a method of preparing a positive electrode active material for a lithium secondary battery and the positive electrode active material for the lithium secondary battery prepared thereby, and more specifically, to a method of preparing a positive electrode active material for a lithium secondary battery, the method comprising doping or coating the positive electrode active material for the lithium secondary battery with a predetermined metal oxide, and the positive electrode active material for the lithium secondary battery which is prepared thereby and has a reduced amount of residual lithium.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: November 2, 2021
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jong Seung Shin, Suk Yong Jeon, Hyun Jong Yu, Young Nam Park
  • Patent number: 11165051
    Abstract: An electrode for nonaqueous electrolyte secondary batteries, which is provided with a collector and a positive electrode active material layer that is arranged on the collector and contains a positive electrode active material. The positive electrode active material is configured to contain compound particles which have a layered structure composed of two or more transition metals, and which have an average particle diameter DSEM of from 1 ?m to 7 ?m (inclusive), a ratio of the 50% particle diameter D50 in a volume-based cumulative particle size distribution to the average particle diameter DSEM, namely D50/DSEM of from 1 to 4 (inclusive), and a ratio of the 90% particle diameter D90 in the volume-based cumulative particle size distribution to the 10% particle diameter D10 in the volume-based cumulative particle size distribution, namely D90/D10 of 4 or less. The positive electrode active material layer has a void fraction of 10-45%.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: November 2, 2021
    Assignees: HONDA MOTOR CO., LTD., NICHIA CORPORATION
    Inventors: Atsushi Ogawa, Toru Sukigara, Hiroto Maeyama, Soshi Kawamura, Kenichi Kobayashi
  • Patent number: 11165060
    Abstract: To provide a cathode active material with which it is possible to obtain a lithium ion secondary battery having a high discharge capacity and being excellent in the cycle characteristic, and its production process. A cathode active material, comprising particles of a lithium-containing composite oxide, the lithium-containing composite oxide being represented by Li?NiaCobMncTidMeO2+? wherein ? is from 1 to 1.8, a is from 0.15 to 0.5, b is from 0 to 0.09, c is from 0.33 to 0.8, d is from 0.01 to 0.1, e is from 0 to 0.1, ? is from 0 to 0.8, a+b+c+d+e=1, and M is Mg, Al, Ca or the like, wherein in an X-ray diffraction pattern, the ratio (H020/H003) of the height of a peak of (020) plane assigned to a crystal structure with space group C2/m to the height of a peak of (003) plane assigned to a crystal structure with space group R-3m is at least 0.02, and D90/D10 is at most 4.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: November 2, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomohiro Sakai
  • Patent number: 11152609
    Abstract: Compositions and methods of preparing energy storage device electrode active materials and electrodes are described. A two-step synthesis process may be utilized to prepare single crystal electrode active materials and electrodes, such as a single crystal nickel-cobalt-aluminum material. In some embodiments, the two step synthesis process includes a first and a second lithiation step.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: October 19, 2021
    Assignee: Panasonic Corporation
    Inventors: Hongyang Li, Jing Li, Jeffery Raymond Dahn
  • Patent number: 11139468
    Abstract: Disclosed is a cathode active material that can lower sintering temperature, the cathode active mated al including a particle of a lithium containing composite oxide having a layered rock-salt crystalline phase, wherein the layered rock-salt crystalline phase is partially deficient in lithium, a percentage of deficient lithium in the layered rock-salt crystalline phase in a surface portion of the particle is higher than that in the layered rock-salt crystalline phase inside the particle, and the particle includes two phases that are different in lattice constant as the layered rock-salt crystalline phase.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: October 5, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masatsugu Kawakami, Shingo Ohta
  • Patent number: 11139473
    Abstract: A porous silicon composition, a porous alloy composition, or a porous silicon containing cermet composition, as defined herein. A method of making: the porous silicon composition; the porous alloy composition, or the porous silicon containing cermet composition, as defined herein. Also disclosed is an electrode, and an energy storage device incorporating the electrode and at least one of the disclosed compositions, as defined herein.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: October 5, 2021
    Assignee: Corning Incorporated
    Inventors: Indrajit Dutta, Brian Alan Kent, Patrick David Tepesch, Shawn Michael O'Malley, Randall Eugene Youngman
  • Patent number: 11139471
    Abstract: The present disclosure provides a lithium ion battery including a positive electrode plate, a negative electrode plate, a separator, and an electrolyte. The positive electrode plate includes a positive electrode current collector, and a positive electrode film disposed on a surface of the positive electrode current collector and containing a positive electrode active material. The positive electrode active material includes a matrix, a first coating layer on the matrix in form of discrete islands, and a second coating layer on the first coating layer and the matrix as a continuous layer. The electrolyte includes an additive A and an additive B. The additive A is selected from a group consisting of cyclic sulfate compounds represented by Formula 1 and Formula 2, and combinations thereof, and the additive B is one or two selected from lithium difluorobisoxalate phosphate and lithium tetrafluorooxalate phosphate.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: October 5, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Ming Zhang, Hao Zhang, Cuiping Zhang, Changlong Han, Chenghua Fu
  • Patent number: 11133501
    Abstract: A composite positive active material includes a lithium nickel cobalt aluminum composite oxide. A full width at half maximum (FWHM) of a peak of a (104) plane of the lithium nickel cobalt aluminum composite oxide is 0.15 or less and an FWHM of a peak of a (108) plane of the lithium nickel cobalt aluminum composite oxide is 0.15 or less, the peaks being obtained by X-ray diffraction analysis using a CuK? X-ray. A method of preparing the composite positive active material, and a lithium secondary battery including a positive electrode including the composite positive active material are disclosed.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 28, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Sanghoon Kim, Kwanghwan Cho, Eunsung Lee, Dohyung Park, ILseok Kim, Sol Choi
  • Patent number: 11133523
    Abstract: An aqueous electrolyte composition suitable for a lithium ion battery is provided. The aqueous electrolyte composition contains water, an ionic liquid which is a salt of a protonic cation and an anion comprising a fluoroalkylsulfonyl group and a lithium fluoroalkylsulfonyl salt. A lithium ion battery containing the aqueous electrolyte and a vehicle at least partially powered by the battery are also provided.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: September 28, 2021
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Kensuke Takechi, Ruidong Yang
  • Patent number: 11121370
    Abstract: Provided is an improved method for forming lithium ion cathode materials specifically for use in a battery. The method comprises forming a first solution comprising a digestible feedstock of a first metal suitable for formation of a cathode oxide precursor and a multi-carboxylic acid. The digestible feedstock is digested to form a first metal salt in solution wherein the first metal salt precipitates as a salt of deprotonated multi-carboxylic acid thereby forming an oxide precursor. The oxide precursor is heated to form the lithium ion cathode material.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: September 14, 2021
    Assignee: Nano One Materials Corp.
    Inventors: Annabelle Wong, Cameron Hodgins, Elahe Talaie Pashiri, Farhang Nesvaderani, O'Rian Reid, Sean Mehta, Stephen A. Campbell, Yingzi Feng
  • Patent number: 11121401
    Abstract: A method for producing a negative electrode for magnesium secondary batteries includes: providing a current collector having an underlying layer including a metal having a higher ionization tendency than magnesium, where the underlying layer is formed on a surface of the current collector; and forming a negative electrode active material layer including a magnesium layer on the current collector by a chemical plating method using the underlying layer as a base material.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: September 14, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kiyoshi Kumagae, Yuri Nakayama, Tadahiko Kubota
  • Patent number: 11121367
    Abstract: The disclosure provides a modified positive electrode active material, a preparation method thereof, and an electrochemical energy storage device. The modified positive electrode active material comprises positive electrode active material substrate; first oxide layer, coated on the surface of the positive electrode active material substrate and selected from one or more of oxides of element M being selected from the group of one or more of Li, Al, Zr, Mg, Ti, Y, Si, Ca, Cr, Fe, Zn, Nb, Sn, Ba, and Cd; and second oxide layer having a continuous layered structure, coated on the surface of the first oxide layer and selected from one or more of oxides of element M? being selected from one or more of Li, B, P, As, Pb, V, Mo, and Sn. High temperature storage performance and cycling performance of electrochemical energy storage device are improved by the modified positive electrode active material.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: September 14, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Rui Du, Na Liu, Yongchao Liu, Sihui Wang, Zhongling Xu, Chao Yang
  • Patent number: 11081695
    Abstract: The present invention provides a positive active material for a rechargeable lithium battery, the active material including a dopant and having a crystalline structure in which metal oxide layers (MO layers) including metals and oxygen and reversible lithium layers are repeatedly stacked, wherein in a lattice configured by oxygen atoms of the MO layers adjacent to each other, the dopant time of charge, thereby forming a lithium trap and/or lithium dumbbell structure.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: August 3, 2021
    Inventors: Sung Bin Park, Young Uk Park, Ji Young Park, Bo Ram Lee, Chi Ho Jo, Young Cheol Choi, Hyuck Hur, Wang Mo Jung
  • Patent number: 11081693
    Abstract: A composite cathode active material including: a secondary particle including a plurality of primary particles including a lithium transition metal oxide having a layered crystal structure; and a coating layer disposed on a surface of the secondary particle and between the primary particles of the plurality of primary particles, wherein the coating layer includes a lithium cobalt composite oxide having a spinel crystal structure, and wherein the lithium cobalt composite oxide includes cobalt (Co) and a Group 2 element, a Group 12 element, a Group 13 element, or a combination thereof.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: August 3, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Sukgi Hong, Youhwan Son, Byongyong Yu, Kwangjin Park, Junho Park, Jinhwan Park, Byungjin Choi
  • Patent number: 11063262
    Abstract: The present application relates to an anode and an electrochemical apparatus and an electronic apparatus using the anode. Specifically, the present application provides an anode, comprising a substrate, an active material layer and a carbon coating layer between the substrate and the active material layer, wherein an X-ray diffraction pattern of the carbon coating layer comprises a 004 diffraction pattern and a 110 diffraction pattern, a ratio C004/C110 of a c-axial length C004 of a unit crystal cell length obtained from the 004 diffraction pattern to an a-axial length C110 of a unit crystal cell length obtained from the 110 diffraction pattern is an OI value of the carbon coating layer, and the OI value is greater than about 15. The anode of the present application has less wrinkling and bending, so as to reduce the deformation problem of a battery cell.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: July 13, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventor: Yuwei Sun
  • Patent number: 11043695
    Abstract: To provide a lithium-containing composite oxide, a cathode active material and a positive electrode for a lithium ion secondary battery, with which a lithium ion secondary battery having favorable cycle characteristics even when charged at a high voltage can be obtained; and a lithium ion secondary battery having favorable cycle characteristics even when charged at a high voltage. A lithium-containing composite oxide which is represented by LiaNibCocMndMeO2 wherein M is Mg, Ca, Al, Ti, V, Nb, Mo, W or Zr, a+b+c+d+e=2, “a” is from 1.01 to 1.10, b is from 0.30 to 0.95, c is from 0 to 0.35, d is from 0 to 0.35, and e is from 0 to 0.05, wherein in an X-ray diffraction pattern obtained by reflection X-ray diffraction employing Cu-K? rays, the ratio (I104/I110) of the integrated intensity (I104) of a peak of (104) plane to the integrated intensity (I110) of a peak of (110) plane is at least 4.20.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: June 22, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masahiko Tamura, Tomoo Kato, Takeshi Kawasato, Ryo Eguchi
  • Patent number: 11031596
    Abstract: Disclosed is a lithium complex oxide and method of manufacturing the same, more particularly, a lithium complex oxide effective in improving the characteristics of capacity, resistance, and lifetime with reduced residual lithium and with different interplanar distances of crystalline structure between a primary particle locating in a internal part of secondary particle and a primary particle locating on the surface part of the secondary particle, and a method of preparing the same.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: June 8, 2021
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jong Seung Shin, Dong Hee Kim, Suk Yong Jeon, Hyun Jong Yu, Kyoung Jun Lee, Young Nam Park
  • Patent number: 11024843
    Abstract: A solid-state battery includes a positive electrode, a negative electrode, and a separator between the positive and negative electrodes. The negative electrode includes reduced lithium titanate (LTO) particles and solid electrolyte particles. The negative electrode lacks electronically conductive additives.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: June 1, 2021
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Venkataramani Anandan, Daniel Murray, Andy Robert Drews
  • Patent number: 11018375
    Abstract: Solid-state lithium ion electrolytes of lithium potassium element oxide based compounds are provided which contain an anionic framework capable of conducting lithium ions. The element atoms are Ir, Sb, I Nb and W. An activation energy of the lithium potassium element oxide compounds is from 0.15 to 0.50 eV and conductivities are from 10?3 to 22 mS/cm at 300K. Compounds of specific formulae are provided and methods to alter the materials with inclusion of aliovalent ions shown. Lithium batteries containing the composite lithium ion electrolytes are also provided. Electrodes containing the lithium potassium element oxide based materials and batteries with such electrodes are also provided.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: May 25, 2021
    Assignees: UNIVERSITY OF MARYLAND, COLLEGE PARK, TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Yifei Mo, Qiang Bai, Xingfeng He, Chen Ling
  • Patent number: 11011749
    Abstract: The present invention relates to a lithium-titanium complex oxide used in an electrode active material. A preparation method of a lithium-titanium complex oxide according to the present invention comprises the steps of: preparing a slurry mixture in which a titanium oxide, lithium and zirconium are mixed; wet-milling the mixture using beads having a size of 0.30 mm or less to obtain a wet-milled mixture; spray drying the wet-milled mixture to obtain a spray dried mixture; and calcining the spray dried mixture.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: May 18, 2021
    Assignee: POSCO CHEMICAL CO., LTD
    Inventors: Su Bong Choi, Chun Gu Kang, Jeong Eun Choi, Seung Chang Jeong, Jae An Lee, Jeong Han Kim
  • Patent number: 11005093
    Abstract: A positive electrode active material for a non-aqueous electrolyte secondary battery includes secondary particles of a lithium transition metal complex oxide as a main component. The main component is represented by a formula: Lit(Ni1-xCox)1-yMnyB?P?S?O2, where t, x, y, ?, ?, and ? satisfy inequalities of 0?x?1, 0.00?y?0.50, (1?x)·(1?y)?y, 0.000???0.020, 0.000??=0.030, 0.000???0.030, and 1+3?+3?+2??t?1.30, and satisfy at least one of inequalities of 0.002??, 0.006??, and 0.004??. The secondary particles exhibit a pore distribution, where a pore volume Vp(1) having a pore diameter of not less than 0.01 ?m and not more than 0.15 ?m satisfies an inequality of 0.035 cm3/g?Vp(1) and where a pore volume Vp(2) having a pore diameter of not less than 0.01 ?m and not more than 10 ?m satisfies an inequality of Vp(2)?0.450 cm3/g.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: May 11, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Kengo Oishi
  • Patent number: 10957901
    Abstract: This disclosure provides a positive electrode active lithium-excess metal oxide with composition LixMyO2 (0.6?y?0.85 and 0?x+y?2) for a lithium secondary battery with a high reversible capacity that is insensitive with respect to cation-disorder. The material exhibits a high capacity without the requirement of overcharge during the first cycles.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: March 23, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Gerbrand Ceder, Jinhyuk Lee, Alexander Urban, Xin Li, Sangtae Kim, Geoffroy Hautier
  • Patent number: 10950851
    Abstract: One aspect of the present invention provides an electrode having a collector and an electrode mix layer disposed on the collector. The electrode mix layer contains an active material A having a core portion A and a coat material A, and an active material B having a core portion B and a coat material B. The isoelectric point of the coat material A is 7 or lower. The isoelectric point of the coat material B is 7 or higher. The isoelectric point of at least one of the coat material A and the coat material B is not 7.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: March 16, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji Yamamoto, Ryuta Sugiura
  • Patent number: 10950894
    Abstract: The present invention relates to a non-aqueous electrolyte solution which includes an ionizable lithium salt, an organic solvent, and a mixed additive, wherein the organic solvent comprises at least one cyclic carbonate-based organic solvent selected from the group consisting of ethylene carbonate, 1,2-butylene carbonate, 2,3-butylene carbonate, 1,2-pentylene carbonate, 2,3-pentylene carbonate, vinylene carbonate, and fluoroethylene carbonate, and at least one linear carbonate-based organic solvent selected from the group consisting of dimethyl carbonate, diethyl carbonate, dipropyl carbonate, ethylmethyl carbonate, methylpropyl carbonate, and ethylpropyl carbonate, the mixed additive includes vinylene carbonate, 1,3-propylene sulfate, and 1,3-propane sultone in a weight ratio of 1:1:1 to 1:0.5:0.2, and a total amount of the mixed additive is in a range of 1 to 4.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: March 16, 2021
    Inventors: Ha Eun Kim, Young Min Lim, Min Jung Kim, Chul Haeng Lee
  • Patent number: 10944102
    Abstract: A process for solution-based formation of a nanostructured, carbon-coated, inorganic composite includes selecting a supply of inorganic material in a solution, selecting a supply of a carbon-containing solution, and synthesizing the composite by causing the inorganic material to react in the carbon-containing solution. The synthesized composite may be conductive-carbon-coated, and may be for electrochemical applications such as battery cathodes and anodes. The selecting step may involve varying relative amounts of polar fluid, microblender and water components to synthesize a crystalline inorganic composite. There may be a step of retaining and reusing the supply of carbon-containing solution that remains after the synthesizing, and testing the supply of carbon-containing solution that remains to determine whether it can be used again.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: March 9, 2021
    Assignee: Sylvatex, Inc.
    Inventor: Ramez Elgammal
  • Patent number: 10938078
    Abstract: The present disclosure relates to the field of energy storage devices and in particular, to a housing used for a battery pack and a battery pack. The housing includes a main body and an installation panel. The main body includes a battery accommodation space and a panel installation window communicating with the battery accommodation space, and the battery accommodation space is configured to accommodate a battery. The installation panel and the main body are separately formed, and the installation panel is installed at the panel installation window. The installation panel includes a base and a connection device installation portion connected to the base, and the connection device installation portion is where a connection device that is connected to the battery is to be installed. The housing provided by the present disclosure has a relatively low production cost and a relatively high production efficiency.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: March 2, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Jianwei Li, Zhiqin Weng, Shengshen Ruan, Linggang Zhou, Libing Chan, Peng Wang
  • Patent number: 10938025
    Abstract: Negative electrode active material particles for a lithium ion secondary battery include base material particles and a coating. The coating covers a surface of the base material particles. The base material particles contain a first carbon material. The coating contains lithium titanate and a second carbon material. When a ratio of an intensity of a D band to an intensity of a G band in a laser Raman spectrum is set as an R value, the second carbon material has a larger R value than the first carbon material.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: March 2, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhisa Takeda, Keisuke Ohara
  • Patent number: 10938036
    Abstract: The present invention relates to a method of preparing a positive electrode material for a lithium secondary battery including a first step of synthesizing a lithium transition metal oxide represented by Chemical Formula 1, a second step of preparing lithium transition metal oxide powder by grinding the lithium transition metal oxide, a third step of preparing a positive electrode material including an alumina coating layer by mixing as well as dispersing the lithium transition metal oxide powder in an alumina nanosol, and a fourth step of drying the positive electrode material, a positive electrode material for a lithium secondary battery prepared by the above method, and a lithium secondary battery including the positive electrode material, Li(1+a)(Ni(1?a?b?c)MnbCoc)On??[Chemical Formula 1] where 0?a?0.1, 0?b?1, 0<c?1, and n is an integer of 2 or 4.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: March 2, 2021
    Inventors: Ick Soon Kwak, Seung Beom Cho, Yeo June Yoon, Sung Wook Mhin
  • Patent number: 10930922
    Abstract: In the positive electrode active material according to the inventive concept, A positive active material for lithium secondary battery comprises a particle comprising M1, M2, and Li, wherein the particle comprises a center, a surface, and an intermediate portion between the center and the surface, wherein M1 and M2 are selected from transition metal and are different each other, and wherein concentrations of M1 and M2 have continuous concentration gradients from the center to the intermediate portion.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: February 23, 2021
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Yang-Kook Sun, Hyung-Joo Noh, Sung-June Youn
  • Patent number: 10916765
    Abstract: Provided are electrodes that may be used in electrochemical cells that incorporate relatively high loading of active material while also demonstrating excellent adhesion, resistance to mechanical breakdown, and also offer improved capacity retention, particularly at discharge rates of C/72 or greater.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: February 9, 2021
    Assignee: Navitas Systems, LLC
    Inventors: Pu Zhang, Peter Aurora, Michael Wixom
  • Patent number: 10903486
    Abstract: A positive active material for a rechargeable lithium battery, a method for manufacturing the same, and a rechargeable lithium battery including the same are provided. A positive active material for a rechargeable lithium battery includes a compound that is capable of reversibly intercalating or deintercalating lithium, wherein the compound is formed of a core portion and a coating layer, the core portion is doped with M, and the coating layer includes Al and B, wherein M is Zr, Ti, Mg, Ca, Al, B, V, Zn, Mo, Ni, Co, Mn, or a combination thereof.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: January 26, 2021
    Assignee: L&F CO., LTD.
    Inventors: Su An Choi, Sang Hoon Jeon, Chang Min Choi, Su Youn Kwon, Jeong A Gu, Bong Jun Jeong
  • Patent number: 10886526
    Abstract: Composite silicon based materials are described that are effective active materials for lithium ion batteries. The composite materials comprise processed, e.g., high energy mechanically milled, silicon suboxide and graphitic carbon in which at least a portion of the graphitic carbon is exfoliated into graphene sheets. The composite materials have a relatively large surface area, a high specific capacity against lithium, and good cycling with lithium metal oxide cathode materials. The composite materials can be effectively formed with a two step high energy mechanical milling process. In the first milling process, silicon suboxide can be milled to form processed silicon suboxide, which may or may not exhibit crystalline silicon x-ray diffraction. In the second milling step, the processed silicon suboxide is milled with graphitic carbon. Composite materials with a high specific capacity and good cycling can be obtained in particular with balancing of the processing conditions.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: January 5, 2021
    Assignee: Zenlabs Energy, Inc.
    Inventors: Yogesh Kumar Anguchamy, Haixia Deng, Yongbong Han, Charan Masarapu, Sujeet Kumar, Herman A. Lopez
  • Patent number: 10873089
    Abstract: A positive electrode material for a lithium secondary battery of the present disclosure includes a positive electrode active material, a barium titanate-based dielectric, and at least one of Compound I which contains the element Ba and has the largest peak at a position with 2?=24° to 26° in an X-ray diffraction pattern obtained according to X-ray diffraction measurement using CuK? rays; and Compound II which contains the element Ti and has the largest peak at a position with 2?=26° to 28° in an X-ray diffraction pattern obtained according to X-ray diffraction measurement using CuK? rays. At least one of Compounds I and II is disposed in contact with the dielectric.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: December 22, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITY
    Inventors: Daisuke Horikawa, Ryuta Sugiura, Takashi Teranishi
  • Patent number: 10854873
    Abstract: A method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries, includes: a mixing step of adding a W compound powder having a solubility A adjusted to 2.0 g/L or less to a Li-metal composite oxide powder and stirring in water washing of the composite oxide powder, the solubility A being determined by stirring the W compound in water having a pH of 12.5 at 25° C. for 20 minutes, the composite oxide powder being represented by the formula: LicNi1-x-yCoxMyO2 and composed of primary and secondary particles, followed by solid-liquid separation, to thereby obtain a tungsten-containing mixture with the tungsten compound dispersed in the composite oxide powder; and a heat-treating step of heat-treating the mixture to uniformly disperse W on the surface of primary particles and thereby form a compound containing W and Li from the W and Li in the mixture, on the surface of primary particles.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: December 1, 2020
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Yuki Furuichi, Tetsufumi Komukai
  • Patent number: 10833331
    Abstract: A method of producing a negative electrode includes at least the following (A) to (C): (A) mixing powder consisting of lithium titanate oxide particles, a binder, and a solvent to prepare a particle-dispersed liquid; (B) granulating powder consisting of graphite-based particles by using the particle-dispersed liquid to prepare wet granules; and (C) forming the wet granules into a negative electrode composite material layer to produce a negative electrode. The negative electrode composite material layer is formed so as to include the lithium titanate oxide particles in an amount not lower than 2 mass % and not higher than 15 mass % of the total amount of the graphite-based particles and the lithium titanate oxide particles.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: November 10, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Atsushi Sugihara
  • Patent number: 10833364
    Abstract: Lithium ion secondary batteries are disclosed that include a positive electrode comprising a lithium nickel composite oxide as a positive electrode active material and a separator consisting of one or more layers selected from polyimide layer, polyamide layer, the battery having a low self-discharge failure rate even after long term storage. The lithium ion secondary batteries can include a positive electrode comprising a lithium nickel composite oxide and a separator consisting of one or more layers selected from polyimide layer, polyamide layer, and polyamide imide layer, wherein the battery comprises an acid and/or an acid anhydride in an electrolyte solution and/or a member in contact with the electrolyte solution.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: November 10, 2020
    Assignee: NEC CORPORATION
    Inventors: Jiro Iriyama, Kenichi Shimura, Kazuhiko Inoue
  • Patent number: 10818964
    Abstract: A composite solid electrolyte with excellent formability and chemical stability and high lithium ion conductivity. The composite solid electrolyte may comprise an oxide-based solid electrolyte and a sulfide-based solid electrolyte, wherein the oxide-based solid electrolyte is (Li7-3Y-Z, AlY)(La3)(Zr2-Z, MZ)O12 (where M is at least one element selected from the group consisting of Nb and Ta; Y is a number in a range of 0?Y<0.22; and Z is a number in a range of 0?Z?2), and wherein the sulfide-based solid electrolyte is VLiX-(1?V)((1?W)Li2S-WP2S5) (where X is a halogen element; V is a number in a range of 0<V<1; and W is a number in a range of 0.125?W?0.30).
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: October 27, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shingo Ohta, Hideyuki Yamamura
  • Patent number: 10797315
    Abstract: An electrochemical device includes a negative electrode containing a negative electrode active material, a positive electrode, and an electrolyte. The negative electrode active material has a crystal structure with an Fm3m space group and contains a compound represented by composition formula (1) below, LixTiyOz ??Formula (1), where 0.4?x/y<2 and x/2+3y/2?z?x/2+2y.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: October 6, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Akira Kano, Junichi Sakamoto, Nobuhiko Hojo
  • Patent number: 10790506
    Abstract: The present invention relates to a spherical or spherical-like cathode material for lithium-ion battery and a lithium-ion battery. The chemical formula of the cathode material is LiaNixCoyMnzMbO2, wherein: 1.02?a?1.20; 0.0?b?0.5; 0.30?x?0.60; 0.20?y?0.40; 0.05?z?0.50; x+y+z=1; M is one or two or more selected from the group consisting of Mg Ti Al Zr Y Co Mn Ni Ba and rare earth elements. Under the scanning electron microscope, the cathode material comprises primary particles with a morphology of spherical or spherical shape, and secondary particles agglomerated by the primary particles. The number percentage of the secondary particles agglomerated by the primary particles is less than or equal to 30%. The lithium battery prepared by the obtained cathode material has high specific capacity, high temperature stability, excellent safety and cycling performance at high temperature, and the preparation method thereof is simple and the cost is relatively low.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: September 29, 2020
    Assignee: Guizhou Zhenhua E-CHEM Inc.
    Inventors: Chaoyi Zhou, Zhu'an Yin, Lijuan Wang, Daixiang Yang, Peng Peng, Qianxin Xiang, Ming Mei, Lu Li
  • Patent number: 10790508
    Abstract: An electrode material comprising a composite lithium metal oxide, which in an initial state has the formula: y[xLi2MO3.(1?x)LiM?O2].(1?y)Li1+dMn2?z?dM?zO4; wherein 0?x?1; 0.75?y<1; 0<z?2; 0?d?0.2; and z?d?2. M comprises one or more metal ions that together have an average oxidation state of +4; M? comprises one or more metal ions that together have an average oxidation state of +3; and M? comprises one or more metal ions that together with the Mn and any excess proportion of lithium, “d”, have a combined average oxidation state between +3.5 and +4. The Li1+dMn2?z?dM?zO4 component comprises a spinel structure, each of the Li2MO3 and the LiM?O2 components comprise layered structures, and at least one of M, M?, and M? comprises Co. Cells and batteries comprising the electrode material also are described.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: September 29, 2020
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Michael M. Thackeray, Jason R. Croy, Brandon R. Long, Joong Sun Park, Eungje Lee
  • Patent number: 10784510
    Abstract: The present invention relates to an active material for a lithium secondary battery, which includes a secondary particle formed by agglomeration of primary particles which include a lithium titanium composite oxide represented by Formula 1 or Formula 2, wherein a pore volume is in a range of 0.001 cm3/g to 0.05 cm3/g, and a method of preparing the same, wherein the active material for a lithium secondary battery according to the present invention may maintain an adequate pore volume even during rolling, because strength of the secondary particle is improved by controlling a particle diameter of the primary particle by introducing a metallic element.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: September 22, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Hye Lim Jeon, Dong Hun Lee, Sung Bin Park, Wang Mo Jung, Seong Hoon Kang
  • Patent number: 10749173
    Abstract: The present invention relates to a composite oxide with x wt.-parts Li2TiO3, preferably in its cubic modification of space group Fm-3m, t wt.-parts TiO2, z wt.-parts of Li2CO3 or LiOH, u wt.-parts of a carbon source and optionally v wt.-parts of a transition or main group metal compound and/or a sulphur containing compound, wherein x is a number between 2 and 3, y is a number between 3 and 4, z is a number between 0.001 and 1, u is a number between 0.05 and 1 and 0?v<0.1 and the metal of the transition or main group metal compound is selected from Al, Mg, Ga, Fe, Co, Sc, Y, Mn, Ni, Cr, V or mixtures thereof. Further the present invention relates to the use of the composite oxide in a process for the preparation of a composition of a non-doped and doped lithium titianate Li4Ti5O12 comprising secondary agglomerates of primary particles and its use as anode material in secondary lithium-ion batteries.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: August 18, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Stefanie Rudenko, Manuel Pfanzelt, Andreas Laumann
  • Patent number: 10749174
    Abstract: To increase capacity per weight of a power storage device, a particle includes a first region, a second region in contact with at least part of a surface of the first region and located on the outside of the first region, and a third region in contact with at least part of a surface of the second region and located on the outside of the second region. The first and the second regions contain lithium and oxygen. At least one of the first region and the second region contains manganese. At least one of the first and the second regions contains an element M. The first region contains a first crystal having a layered rock-salt structure. The second region contains a second crystal having a layered rock-salt structure. An orientation of the first crystal is different from an orientation of the second crystal.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: August 18, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takahiro Kawakami, Teruaki Ochiai, Shuhei Yoshitomi, Takuya Hirohashi, Mako Motoyoshi, Yohei Momma, Junya Goto