Chemically Specified Inorganic Electrochemically Active Material Containing Patents (Class 429/218.1)
  • Patent number: 10505184
    Abstract: A negative electrode active material for electric device is used which includes a silicon-containing alloy having a structure in which a silicide phase containing a silicide of a transition metal is dispersed in a parent phase containing amorphous or low crystalline silicon as a main component and a predetermined composition and in which a ratio value (B/A) of a diffraction peak intensity B of a silicide of a transition metal in a range of 2?=37 to 45° to a diffraction peak intensity A of a (111) plane of Si in a range of 2?=24 to 33° is 0.41 or more in an X-ray diffraction measurement of the silicon-containing alloy using a CuK?1 ray.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: December 10, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Humihiro Miki, Tomohiro Kaburagi, Manabu Watanabe, Nobutaka Chiba
  • Patent number: 10490817
    Abstract: The present invention relates to nanostructured materials (including nanowires) for use in batteries. Exemplary materials include carbon-comprising, Si-based nanostructures, nanostructured materials disposed on carbon-based substrates, and nanostructures comprising nanoscale scaffolds. The present invention also provides methods of preparing battery electrodes, and batteries, using the nanostructured materials.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: November 26, 2019
    Assignee: OneD Material LLC
    Inventors: Yimin Zhu, Jay L. Goldman, Jason Hartlove, Hans Jurgen Hofler, Baixin Qian, Vijendra Sahi, Ionel C. Stefan, David P. Stumbo
  • Patent number: 10490855
    Abstract: The present application provides an electrochemical energy storage device with a desirable reaction reversibility by using a metal halide as an electrode active material. The electrochemical energy storage device disclosed herein includes: a positive electrode; a negative electrode; and a non-aqueous electrolyte in contact with the positive electrode and the negative electrode, wherein: at least one of the positive electrode and the negative electrode contains a metal halide as an electrode active material; and the non-aqueous electrolyte contains, as a solvent, an ionic liquid of which a component is a cation having an alkoxyalkyl group.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: November 26, 2019
    Assignees: PANASONIC CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, KYOTO UNIVERSITY
    Inventors: Toru Matsui, Koji Suto, Toshiro Hirai, Jun-ichi Yamaki, Zempachi Ogumi
  • Patent number: 10483528
    Abstract: The initial charge/discharge efficiency and cycle characteristics of a non-aqueous electrolyte secondary battery that contains a silicon material as a negative-electrode active material are improved. A negative-electrode active material particle (10) according to an embodiment contains a base particle (13), which includes a lithium silicate phase (11) represented by Li2zSiO(2+z) {0<z<2} and silicon particles (12) dispersed in the lithium silicate phase (11). The symmetry determined by an image analysis of a backscattered electron image of a cross section of the base particle (13) is 1.5 or less. The symmetry refers to the ratio (b/a) of the half width at half maximum b of a peak on the high-gray-scale side to the half width at half maximum a of the peak on the low-gray-scale side in a histogram of color distinction based on 256 gray levels for each pixel of the backscattered electron image.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: November 19, 2019
    Assignee: SANYO Electronics Co., Ltd.
    Inventors: Norihisa Yamamoto, Taizou Sunano, Hiroshi Minami, Yoshio Kato, Yohei Uchiyama
  • Patent number: 10483523
    Abstract: A battery can include a separator, a first current collector, a protective layer, and a first electrode. The first current collector and the protective layer can be disposed on one side of the separator. The first electrode can be disposed on an opposite side of the separator as the first current collector and the protective layer. Subjecting the battery to an activation process can cause metal to be extracted from the first electrode and deposited between the first current collector and the protective layer. The metal can be deposited to at least form a second electrode between the first current collector and the protective layer.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: November 19, 2019
    Assignee: American Lithium Energy Corporation
    Inventor: Jiang Fan
  • Patent number: 10468669
    Abstract: An active material for a nonaqueous electrolyte battery according to the embodiment is a composite including at least: a carbonaceous substance; and silicon-containing particles dispersed in the carbonaceous substance, the silicon-containing particles including at least one of silicon, a silicon alloy and a silicon oxide, wherein in an argon ion laser Raman spectrum, the half-width (?G) of a peak having a maximum intensity I1 in the range of 1575 cm?1 or more and 1625 cm?1 or less is 100 cm?1 or more and 150 cm?1 or less, and the intensity ratio of a peak having a maximum intensity I2 in the range of 500 cm?1 or more and 550 cm?1 or less to the peak having the maximum intensity I1 in the range of 1575 cm?1 or more and 1625 cm?1 or less (I2/I1) is 0.25 or more and 0.50 or less.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: November 5, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Essaki, Takayuki Fukasawa, Miho Muramatsu, Tomokazu Morita, Takashi Kuboki, Yumiko Kita
  • Patent number: 10468665
    Abstract: A permeable composite material for making an electrode for an electrochemical cell, the composite material comprising: a support defining pores; and alkali metal deposited on the support within a plurality of said pores. An electrode comprising the composite material is also described, as are methods of making the material and cells and assemblies comprising the electrode.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: November 5, 2019
    Assignee: SIGMA LITHIUM LIMITED
    Inventors: Gleb Ivanov, Sergey Mochalov, Azat Nurgaliev, Aleksei Ivanov, Elena Kuzmina, Elena Karaseva, Vladimir Kolosnitsyn
  • Patent number: 10468684
    Abstract: A composition and method of preparation of mixed valence manganese oxide, nickel-doped mixed valence manganese oxide and cobalt-doped mixed valence manganese oxide nanoparticles as well as tri-manganese tetroxide, nickel-doped tri-manganese tetroxide and cobalt-doped tri-manganese tetroxide nanoparticles for use as electrodes for aqueous energy storage devices.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: November 5, 2019
    Assignee: The University of New Hampshire
    Inventor: Xiaowei Teng
  • Patent number: 10461571
    Abstract: A module includes a charging circuit and a driven unit. The charging circuit includes a power generation element and an electric storage element. The power generation element is connected to the electric storage element to charge the electric storage element. The electric storage element is connected to the driven unit to drive the driven unit with electric power stored. The power-generating voltage of the power generation element has a value equal to or more than the charging voltage of the electric storage element. The electric storage element is a secondary battery including a lithium-transition metal oxide in a positive electrode active material layer, and a lithium-titanium oxide of spinel-type crystal structure in a negative electrode active material layer.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: October 29, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yasuharu Nakai, Masaharu Itaya, Yusuke Yoshida, Yasuhiro Kuratani, Masako Tenpaku, Yoshifumi Wada
  • Patent number: 10461328
    Abstract: Provided are a cathode active material used for a lithium ion secondary battery capable of sufficiently realizing both high charge/discharge capacities and excellent cycle properties, and a lithium ion secondary battery using the cathode active material. The cathode active material contains a plurality of secondary particles formed via agglomeration of a plurality of primary particles of a lithium transition metal composite oxide. Spreading resistance distributions of the secondary particles respectively observed in cross-sections at optional three positions of the cathode active material are measured so as to afford average values of spreading resistance of the secondary particles in the respective cross-sections. The average values of spreading resistance of the secondary particles are further averaged. The resultant averaged value of spreading resistance is made to enter the range of 1.0×106 ?/cm or more and 1.0×1010 ?/cm or less.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: October 29, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Tatsuya Toyama, Hisato Tokoro, Shin Takahashi, Akira Gunji, Shuichi Takano, Takashi Nakabayashi
  • Patent number: 10454095
    Abstract: An anode active material for lithium secondary battery includes a secondary particle formed by agglomerating primary particles, an average diameter of the primary particles is in a range from 5 ?m to 15 ?m, and an average diameter of the secondary particle is in a range from 10 ?m to about 25 ?m. The primary particles include an artificial graphite, and an I(110)/I(002) of the secondary particle is in a range from about 0.0075 to 0.012.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: October 22, 2019
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Hyo Sang Kim, Sang Jin Kim, Jung Hwan Kim, Jee Hee Lee
  • Patent number: 10446833
    Abstract: Electrode materials comprising (a) at least one compound of general formula (I) Li(1+x)[NiaCObMncM1d](1-x)O2 (I) the integers being defined as follows: x is in the range of from 0.01 to 0.05, a is in the range of from 0.3 to 0.6, b is in the range of from zero to 0.35, c is in the range of from 0.2 to 0.6, d is in the range of from zero to 0.05, a+b+c+d=1 M1 is at least one metal selected from Ca, Zn, Fe, Ti, Ba, Al, (b) at least one compound of general formula (II) LiFe(1-x)M2yPO4 (II) y is in the range of from zero to 0.8 M2 is at least one element selected from Ti, Co, Mn, Ni, V, Mg, Nd, Zn and Y, that contains at least one further iron-phosphorous compound, in form of a solid solution in compound (b) or in domains, (c) carbon in electrically conductive modification.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: October 15, 2019
    Assignee: BASF SE
    Inventors: Ivana Krkljus, Aleksei Volkov, Carsten Sueling
  • Patent number: 10446837
    Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles containing a silicon compound expressed by SiOx where 0.5?x?1.6, the negative electrode active material particles at least partially coated with a carbon coating, the carbon coating exhibiting a specific surface area ranging from 5 m2/g to 1000 m2/g, the specific surface area being measured by a multipoint BET method after the carbon coating is separated from the negative electrode active material particles, the carbon coating exhibiting a compression resistivity ranging from 1.0×10?3 ?·cm to 1.0 ?·cm when the carbon coating is compressed so as to have a density of 1.0 g/cm3, the compression resistivity being measured after the carbon coating is separated from the negative electrode active material particles. This negative electrode active material can increase the battery capacity and improve the cycle performance and battery initial efficiency.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: October 15, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiromichi Kamo, Kenta Fujisaki, Takumi Matsuno, Takakazu Hirose, Hiroki Yoshikawa
  • Patent number: 10439221
    Abstract: The present invention relates to a negative electrode active material for a lithium secondary battery, which includes (A) first artificial graphite having an average particle diameter (D50) of 15 ?m to 20 ?m and (B) second artificial graphite having an average particle diameter (D50) of 3 ?m to 5 ?m, wherein the first artificial graphite (A) includes a secondary artificial graphite particle, in which at least one primary artificial graphite particle is agglomerated, and a carbon coating layer, and a weight ratio of the first artificial graphite to the second artificial graphite is in a range of 85:15 to 95:5, a negative electrode including the same, and a lithium secondary battery including the negative electrode.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: October 8, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Hee Won Choi, Sang Wook Woo, Dong Sub Jung, Dong Hyuk Kim, Eun Kyung Kim
  • Patent number: 10431815
    Abstract: A carbonaceous material, an anode active material including the carbonaceous material, a lithium battery including the anode active material, and a method of preparing the carbonaceous material are provided. The carbonaceous material includes: a core including graphite; and a shell on the core and including an amorphous carbonaceous material, wherein the carbonaceous material is a single body.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: October 1, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jaehyun Shim, Kisoo Lee, Jeongho Lee, Myoungseok Lee, Jeongmin Han
  • Patent number: 10424782
    Abstract: Presented in the present disclosure are nanocomposites and rechargeable batteries which are resistant to thermal runaway and are safe, reliable, and stable electrode materials for rechargeable batteries operated at high temperature and high pressure. The nanocomposites include a plurality of transition metal oxide nanoparticles, a plurality of ultrathin sheets of a first two-dimensional (2D) material, and a plurality of ultrathin sheets of a different 2D material, which act in synergy to provide an improved thermal stability, an increased surface area, and enhanced electrochemical properties to the nanocomposites. For example, rechargeable batteries that include the nanocomposites as an electrode material have an enhanced performance and stability over a broad temperature range from room temperature to high temperatures.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: September 24, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Muhammad Arsalan, Edreese Alsharaeh, Yasmin Mussa, Faheem Ahmed
  • Patent number: 10424780
    Abstract: In a nonaqueous electrolyte secondary battery containing SiOX as a negative electrode active material, initial charge/discharge efficiency and cycle characteristics are increased. A negative electrode active material for nonaqueous electrolyte secondary batteries is provided. The negative electrode active material contains particles comprising of SiOx (0.8?X?1.2). The particles have cracks therein. SiOX preferably contains a lithium silicate phase, a Si-M compound, or an oxide of M (M is at least one selected from the group consisting of Al, Ti, Fe, and Ni). The cracks preferably extend radially from inner portions of the particles.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: September 24, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Hiroshi Minami, Tatsuya Akira, Taizou Sunano
  • Patent number: 10403927
    Abstract: In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and is able to be manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: September 3, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yuichi Sabi, Katsunori Takahara, Hiroyuki Morioka, Tatsuya Furuya, Koichiro Hinokuma, Reina Ichikawa, Yui Senda, Momoe Adachi
  • Patent number: 10396353
    Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles containing a silicon compound (SiOx where 0.5?x?1.6), the negative electrode active material particles being coated with a carbon coating composed of a substance at least partially containing carbon, the carbon coating having a density ranging from 1.2 g/cm3 to 1.9 g/cm3, the negative electrode active material particles having a characteristic of type II or type III adsorption-desorption isotherm in the IUPAC classification, as obtained by adsorption-desorption isotherm measurement with nitrogen gas. This negative electrode active material can increase the battery capacity and improve the cycle performance and battery initial efficiency.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: August 27, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiromichi Kamo, Kohta Takahashi, Takakazu Hirose, Koichiro Watanabe, Masahiro Furuya, Hiroki Yoshikawa
  • Patent number: 10396356
    Abstract: Provided are nickel manganese composite hydroxide particles that are a precursor for forming cathode active material comprising lithium nickel manganese composite oxide having hollow structure of particles having a small and uniform particle size for obtaining a non-aqueous electrolyte secondary battery having high capacity, high output and good cyclability. When obtaining the nickel manganese composite hydroxide particles from a crystallization reaction, an aqueous solution for nucleation, which includes at least a metallic compound that contains nickel and a metallic compound that contains manganese, and does not include a complex ion formation agent that forms complex ions with nickel, manganese and cobalt, is controlled so that the temperature of the solution is 60° C. or greater, and so that the pH value that is measured at a standard solution temperature of 25° C. is 11.5 to 13.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: August 27, 2019
    Assignee: SUMITOMO METAL MINING CO., LTD
    Inventors: Hiroyuki Toya, Kazuomi Ryoshi, Toshiyuki Osako
  • Patent number: 10396360
    Abstract: An electroactive material for use in an electrochemical cell, like a lithium ion battery, is provided. The electroactive material comprises silicon or tin and undergoes substantial expansion during operation of a lithium ion battery. A polymeric ultrathin conformal coating is formed over a surface of the electroactive material. The coating is flexible and is capable of reversibly elongating by at least 250% from a contracted state to an expanded state in at least one direction to minimize or prevent fracturing of the negative electrode material during lithium ion cycling. The coating may be applied by vapor precursors reacting in atomic layer deposition (ALD) to form conformal ultrathin layers over the electroactive materials. Methods for making such materials and using such materials in electrochemical cells are likewise provided.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: August 27, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC.
    Inventors: Xingcheng Xiao, Xiaosong Huang
  • Patent number: 10388948
    Abstract: A composition comprising a first particulate electroactive material, a particulate graphite material and a binder, wherein at least 50% of the total volume of each said particulate materials is made up of particles having a particle size D50 and wherein a ratio of electroactive material D50 particle size:graphite D50 particle size is up to 4.5:1.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: August 20, 2019
    Assignee: Nexeon Limited
    Inventors: Mamdouh Elsayed Abdelsalam, Fazil Coowar
  • Patent number: 10388949
    Abstract: A method for producing coated active materials includes aqueously coating surfaces of the active materials and subsequently carbonizing the coated particles. A core, a battery and a method for using the materials for batteries are also provided.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: August 20, 2019
    Assignee: SGL Carbon SE
    Inventors: Ruediger-Bernd Schweiss, Lea Schumann, Christian Hammer
  • Patent number: 10388983
    Abstract: A process for producing a lithium battery, comprising: (A) Assembling a porous cell framework composed of a foamed anode current collector, a foamed cathode current collector, and a porous separator disposed between the two collectors; wherein the current collector(s) has a thickness no less than 100 ?m and at least 80% by volume of pores; (B) Preparing a first suspension of an anode active material dispersed in a first liquid electrolyte and a second suspension of a cathode active material dispersed in a second liquid electrolyte; and (C) Injecting the first suspension into pores of the anode current collector to form an anode and injecting the second suspension into pores of the cathode current collector to form a cathode to an extent that the anode active material and the cathode active material combined constitutes an electrode active material mass loading no less than 40% of the total battery cell weight.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: August 20, 2019
    Assignee: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 10388950
    Abstract: A negative electrode active material for a negative electrode material of a non-aqueous electrolyte secondary battery, includes a silicon-based material expressed by SiOx where 0.5?x?1.6 and either or both of a crystalized fluorine compound and a compound containing —CF2—CF2— units in at least a part of a surface layer of the negative electrode active material, the silicon-based material containing at least one of Li6Si2O7, Li2Si3O5, and Li4SiO4. There can be provided a negative electrode active material that can increase the battery capacity and improve the cycle performance and initial charge and discharge performance when used for a lithium-ion secondary battery, as well as a lithium-ion secondary battery having a negative electrode using this negative electrode active material.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: August 20, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu Hirose, Hiromichi Kamo, Hiroki Yoshikawa
  • Patent number: 10388953
    Abstract: Provided are a lithium-manganese-nickel composite oxide carrying an organic phosphate with a high capacity and a high cycle characteristic when used as a positive electrode active material of a secondary battery, a method for producing the same, and also a nonaqueous electrolyte secondary battery using the lithium-manganese-nickel composite oxide as a positive electrode active material. The positive electrode active material for a nonaqueous electrolyte secondary battery, wherein an organic phosphite compound or an organic phosphate compound having an organic functional group composed of an alkyl group, an aryl group, and the like adheres to a part or the entire of a particle surface of the lithium-manganese-nickel composite oxide represented by general formula: LitMn2-x-yNixMyO4 (wherein 0.96<t?1.25, 0.40?x?0.60, 0?y?0.20, and M represents at least one element selected from Mg, Al, Si, Ti, Cr, Fe, Co, Cu and Zn).
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: August 20, 2019
    Assignee: Sumitomo Metal Minig Co., Ltd.
    Inventors: Ryosuke Okamoto, Kazuhiko Okubo
  • Patent number: 10381638
    Abstract: A negative active material for a rechargeable lithium battery includes a carbon component having a ratio (I1360/I1620) of peak intensity (I1360) at 1360 cm?1 relative to peak intensity (I1620) at 1620 cm?1 ranging from about 1 to about 4.5 measured by Raman spectroscopy.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: August 13, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Kyeu-Yoon Sheem
  • Patent number: 10381650
    Abstract: This cladding material for a battery collector consists of a cladding material having a two-layer structure formed by bonding a first layer arranged on a first surface and constituted of an Al-based alloy and a second layer arranged on a second surface and constituted of a Cu-based alloy to each other by rolling. The ratio of the thickness of the first layer to the total thickness of the first layer and the second layer is not more than 35%.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: August 13, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshimitsu Oda, Ryoji Inoue, Kenichi Funamoto
  • Patent number: 10374232
    Abstract: A compound MjXp which is particularly suitable for use in a battery prepared by the complexometric precursor formulation methodology wherein: Mj is at least one positive ion selected from the group consisting of alkali metals, alkaline earth metals and transition metals and j is an integer representing the moles of said positive ion per moles of said MjXp; and Xp, a negative anion or polyanion from Groups IIIA, IV A, VA, VIA and VIIA and may be one or more anion or polyanion and p is an integer representing the moles of said negative ion per moles of said MjXp.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 6, 2019
    Assignee: Nano One Materials Corp.
    Inventor: Teresita Frianeza-Kullberg
  • Patent number: 10367203
    Abstract: A secondary battery includes: a cathode; an anode; and a nonaqueous electrolytic solution. The anode includes an anode active material containing an electrode compound, the electrode compound inserting and extracting an electrode reactant at a potential (a potential to lithium) of 1 V to 3 V both inclusive, and a metal salt containing one or both of a carboxylic acid compound and a sulfonic acid compound.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: July 30, 2019
    Assignee: Murata Manufacturing Co., Ltd
    Inventors: Ichiro Yamada, Takuma Sakamoto, Yuichiro Asakawa, Atsushi Nishimoto
  • Patent number: 10361431
    Abstract: The present invention relates to a positive electrode for lithium ion secondary batteries, the positive electrode comprising a positive electrode active material and a positive electrode binder, in which the positive electrode active material comprises lithium manganate having a spinel structure, and the positive electrode binder comprises at least polyvinylidene fluoride (PVDF) and a resin having sulfone linkages, and to a lithium ion secondary battery comprising the positive electrode for lithium ion secondary batteries.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: July 23, 2019
    Assignee: NEC Corporation
    Inventors: Hideaki Sasaki, Takehiro Noguchi
  • Patent number: 10340518
    Abstract: An anode active material for a lithium secondary battery, a preparation method thereof, and a lithium secondary battery including the anode active material are provided. The anode active material includes carbon particles having a spherical shape, a first carbon coating layer present on surfaces of the carbon particles, a silicon coating layer present on the first carbon coating layer and including silicon nanoparticles, and a second carbon coating layer present on the silicon coating layer.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: July 2, 2019
    Assignee: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Jaephil Cho, Min Seong Ko, Su Jong Chae, Ji Young Ma, Nam Hyung Kim
  • Patent number: 10340516
    Abstract: This invention relates to a negative electrode material for lithium-ion batteries comprising silicon and having a chemically treated or coated surface influencing the zeta potential of the surface. The active material consists of particles or particles and wires comprising a core comprising silicon, wherein the particles have a positive zeta potential in an interval between pH 3.5 and 9.5, and preferably between pH 4 and 9.5. The core is either chemically treated with an amino-functional metal oxide, or the core is at least partly covered with OySiHx groups, with 1<x<3, 1?y?3, and x>y, or is covered by adsorbed inorganic nanoparticles or cationic multivalent metal ions or oxides.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: July 2, 2019
    Assignee: UMICORE
    Inventors: Stijn Put, Jan Gilleir, Kris Driesen, Jean-Sébastien Bridel, Nicolas Marx, Delphine Longrie, Dan V. Goia, John I. Njagi
  • Patent number: 10326134
    Abstract: An object of the present invention is to provide a novel sulfur-based positive electrode active material for a lithium-ion secondary battery which is excellent in cyclability and can largely improve a charging and discharging capacity, a positive electrode comprising the positive electrode active material and a lithium-ion secondary battery made using the positive electrode. The sulfur-based positive electrode active material is obtainable by subjecting a starting material comprising a polymer, sulfur and an organometallic compound dispersed in a form of fine particles to heat-treatment under a non-oxidizing atmosphere, wherein the particles of metallic sulfide resulting from sulfurization of the organometallic compound are dispersed in the heat-treated material, and particle size of the metallic sulfide particles is not less than 10 nm and less than 100 nm.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: June 18, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuya Kubo, Akihiro Yamano, Naoto Yamashita, Masahiro Yanagida
  • Patent number: 10319995
    Abstract: The present invention provides a silicon nanowire structure embedded in nickel silicide nanowires for lithium-based battery anodes and anodes including the same. In particular, a Si nanowire structure embedded in NiSix nanowires according to the present invention may provide a solution to a problem, such as disconnection of Si nanowires from a current collector shown when the Si nanowires are expanded by alloying with Li or contracted during the use of a battery, and the like, by flexibly embedding the Si nanowires in the NiSix nanowires.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: June 11, 2019
    Assignees: Hyundai Motor Company, Research & Business Foundation Sungkyunkwan University
    Inventors: Kyo Min Shin, Sa Heum Kim, Hong Seok Min, Mihai Robert Zamfir, Je Mee Joe, Didier Pribat, Yeo Jin Lee
  • Patent number: 10320026
    Abstract: A secondary battery which is highly safe even when it becomes in excessively high-temperature conditions and is excellent in cycle characteristics, and an electrode for a secondary battery are provided. The present invention relates to an electrode for a secondary battery comprising a maleimide compound and a conductive agent, wherein the conductive agent comprises at least one selected from carbon nanotube and carbon nanohorns.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: June 11, 2019
    Assignee: NEC Corporation
    Inventor: Takeshi Azami
  • Patent number: 10297856
    Abstract: The present disclosure is to provide a negative electrode for a lithium secondary battery having high negative electrode efficiency and excellent capacity retention, and a lithium secondary battery including the negative electrode. In one aspect, there is provided a negative electrode for a lithium secondary battery, wherein the electrode contains 3 to 9% by weight of a silicon-based negative-electrode active material having a following composition formula (1); and 87.5 to 95.5% by weight of a graphite-based negative-electrode active material: SixTiyFezAlu??(1) where x, y, z and u are atomic %, x: 1?(y+z+u), y: 0.09 to 0.14, z: 0.09 to 0.14, u: 0.01 exclusive to 0.2 exclusive.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: May 21, 2019
    Assignee: ILJIN ELECTRIC CO., LTD.
    Inventors: Young Pil Choi, Cheol Ho Park, Min Hyun Kim, Myeong Han Kim, Seon Kyong Kim
  • Patent number: 10297885
    Abstract: Lithium-ion battery cells and a lithium-ion utilizing capacitor cells are placed spaced-apart in a common container and infiltrated with a common lithium-ion transporting, liquid electrolyte. The lithium-ion-utilizing capacitor and lithium-ion cell battery are combined such that their respective electrodes may be electrically connected, either in series or parallel connection for energy storage and management in an automotive vehicle or other electrical power supply application.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: May 21, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xiaohong Q. Gayden, Zhiqiang Yu, Haijing Liu
  • Patent number: 10290867
    Abstract: A negative electrode active material having high cycle durability contains an alloy represented by the following chemical formula (1): SixSnyMzAa??(1) (in the chemical formula (1), M is at least one metal selected from the group consisting of Ti, Zn, C, and combinations thereof, A is unavoidable impurities, x, y, z, and a represent % by mass values, and in that case, 0<x<100, 0<y<100, 0<z<100, 0?a<0.5, and x+y+z+a=100), in which the half width of the diffraction peak of the (111) surface of Si in the range of 2?=24 to 33° by X ray diffraction measurement of the alloy using the CuK? ray is 0.7° or more.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 14, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Fumihiro Miki, Manabu Watanabe, Nobutaka Chiba, Kei Kitaura, Tohru Wada
  • Patent number: 10276870
    Abstract: A composite cathode active material including: a composite oxide capable of intercalation and deintercalation of lithium; a carbon nanostructure; and a material which is chemically inert to lithium.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: April 30, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-ho Park, Jun-young Mun, Jin-hwan Park, Jae-gu Yoon
  • Patent number: 10270087
    Abstract: Provided is a composite particle which can improve the capacity per volume and charge-discharge cycle characteristics. The composite particle includes a plurality of specific particles and a binding material. The specific particle contains an alloy phase. The alloy phase undergoes thermoelastic diffusionless transformation when releasing metal ions or occluding metal ions. The binding material contains at least one of non-graphite carbon and a carbon precursor. The plurality of specific particles bind with each other via the binding material.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: April 23, 2019
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Masafumi Usui, Sukeyoshi Yamamoto, Noriyuki Negi
  • Patent number: 10270092
    Abstract: Provided is a negative electrode active material that can improve the discharge capacity per volume and charge-discharge cycle characteristics. The negative electrode active material according to the present embodiment contains an alloy phase. The alloy phase undergoes thermoelastic diffusionless transformation when releasing metal ions or occluding metal ions. The oxygen content of the negative electrode active material is not more than 5000 ppm in mass.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: April 23, 2019
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Sukeyoshi Yamamoto, Tatsuo Nagata, Noriyuki Negi
  • Patent number: 10256463
    Abstract: Provided is a composite anode active material with pores having a composition represented by Formula 1, and, the composite anode active material contains an amorphous phase including Si and a nano-crystalline phase including a metal silicide: SixMyCz??<Formula 1> wherein, in Formula 1, x, y, and z each represent an atomic percentage; x+y+z=100; x>y+z; x>0, y>0, and z?0; and M is at least one metal selected from Mn, Mo, Nb, W, Ta, Fe, Cu, Ni, Co, Zr, Y, and a combination thereof.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: April 9, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Xianhui Meng, Sanghyuck Ahn, Sukyung Lee, Yeongap Kim, Youngjin Choi, Deokhyun Kim
  • Patent number: 10249908
    Abstract: A new battery cell structure uses a battery cell structure comprising a plurality of strips so that only a fraction of the power in the cell can be fed to a dendrite which has shorted an anode and cathode. The dendrite still occurs, but can be rendered benign. In addition, a fuse can be added to the cell structure so that shorted cells can be removed from the circuit.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: April 2, 2019
    Assignee: INTEL CORPORATION
    Inventor: Andrew W. Keates
  • Patent number: 10246337
    Abstract: Embodiments of a safe, low-temperature reaction system and method for preparing porous silicon are disclosed. The porous silicon is prepared from porous silica, a low-melting metal halide, and a metal comprising aluminum, magnesium, or a combination thereof. Advantageously, embodiments of the disclosed methods can be performed at temperatures ?400° C. Silicon produced by the disclosed methods has a porosity that is equal to or greater than the porous silica precursor. The porous silicon is suitable for use in electrodes.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: April 2, 2019
    Assignee: Battelle Memorial Institute
    Inventors: Xiaolin Li, Ji-Guang Zhang, Jun Liu
  • Patent number: 10243200
    Abstract: A secondary battery having a cathode, an anode, and an electrolyte is provided. The cathode includes a cathode active material containing at least one kind selected from the group consisting of sulfur S and phosphorus P in a portion near the particle surface of a lithium composite oxide. A content of the kind in the portion is larger than that in the particle of the lithium composite oxide.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: March 26, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Masanori Soma, Atsumichi Kawashima, Masayuki Ihara, Hideki Nakai, Kenichi Kawase
  • Patent number: 10236532
    Abstract: Disclosed are an additive for an electrolyte represented by the following Chemical Formula 1, and an electrolyte and a rechargeable lithium battery including the same: wherein R1 to R4 and n are the same as described in the detailed description.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: March 19, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jin-Hyeok Lim, Ho-Seok Yang, Yun-Hee Kim, Young Sam Park, Hee-Yeon Hwang, Hyun-Woo Kim
  • Patent number: 10236502
    Abstract: Provided is a method for manufacturing a power storage device in which a crystalline silicon layer including a whisker-like crystalline silicon region is formed as an active material layer over a current collector by a low-pressure CVD method in which heating is performed using a deposition gas containing silicon. The power storage device includes the current collector, a mixed layer formed over the current collector, and the crystalline silicon layer functioning as the active material layer formed over the mixed layer. The crystalline silicon layer includes a crystalline silicon region and a whisker-like crystalline silicon region including a plurality of protrusions which project over the crystalline silicon region. With the protrusions, the surface area of the crystalline silicon layer functioning as the active material layer can be increased.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: March 19, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kazutaka Kuriki, Mikio Yukawa, Yuji Asano
  • Patent number: 10224537
    Abstract: A battery electrode composition is provided that comprises composite particles. Each composite particle may comprise, for example, active fluoride material and a nanoporous, electrically-conductive scaffolding matrix within which the active fluoride material is disposed. The active fluoride material is provided to store and release ions during battery operation. The storing and releasing of the ions may cause a substantial change in volume of the active material. The scaffolding matrix structurally supports the active material, electrically interconnects the active material, and accommodates the changes in volume of the active material.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: March 5, 2019
    Assignee: Sila Nanotechnologies, Inc.
    Inventors: Gleb Nikolayevich Yushin, Bogdan Zdyrko, Alexander Thomas Jacobs, Eugene Michael Berdichevsky
  • Patent number: 10214428
    Abstract: A positive electrode is disclosed for a non-aqueous electrolyte lithium rechargeable cell or battery. The electrode comprises a lithium containing material of the formula NayLixNizMn1-z-z?Mz?Od, wherein M is a metal cation, x+y>1, 0<z<0.5, 0?z?<0.5, y+x+1 is less than d, and the value of d depends on the proportions and average oxidation states of the metallic elements, Li, Na, Mn, Ni, and M, if present, such that the combined positive charge of the metallic elements is balanced by the number of oxygen anions, d. The inventive material preferably has a spinel or spinel-like component in its structure. The value of y preferably is less than about 0.2, and M comprises one or more metal cations selected preferably from one or more monovalent, divalent, trivalent or tetravalent cations, such as Mg2+, Co2+, Co3+, B3+, Ga3+, Fe2+, Fe3+, Al3+, and Ti4+.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: February 26, 2019
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Christopher Johnson, Sun-Ho Kang