Carbon, Graphite, Or Carbonaceous Component Is Active Material Patents (Class 429/231.8)
  • Patent number: 11563206
    Abstract: Provided is a lithium secondary battery. The lithium secondary battery includes a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a mixed negative electrode active material including graphite particles and low crystalline carbon-based particles, and the negative electrode active material layer has an apex of an exothermic peak in a temperature range of no less than 370° C. and no more than 390° C., as measured by differential scanning calorimetry (DSC).
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: January 24, 2023
    Assignee: SK ON CO., LTD.
    Inventors: Jong Hyuk Lee, Dock Young Yoon, Hee Gyoung Kang
  • Patent number: 11527756
    Abstract: The electrical resistance of active cathodic and anodic films may be significantly reduced by the addition of small fractions of conductive additives within a battery system. The decrease in resistance in the cathode and/or anode leads to easier electron transport through the battery, resulting in increases in power, capacity and rates while decreasing joules heating losses.
    Type: Grant
    Filed: June 6, 2021
    Date of Patent: December 13, 2022
    Inventor: George Clayton Hansen
  • Patent number: 11492260
    Abstract: A problem to be solved by the present invention is to provide a carbonaceous material suitable for a negative electrode active material for non-aqueous electrolyte secondary batteries (e.g., lithium ion secondary batteries, sodium ion secondary batteries, lithium sulfur batteries, lithium air batteries) having high charge/discharge capacities and preferably high charge/discharge efficiency as well as low resistance, a negative electrode comprising the carbonaceous material, a non-aqueous electrolyte secondary battery comprising the negative electrode, and a production method of the carbonaceous material. The present invention relates to a carbonaceous material having a nitrogen element content of 1.0 mass % or more and an oxygen content of 1.5 mass % or less obtained by elemental analysis, a ratio of nitrogen element content and hydrogen element content (RN/H) of 6 or more and 100 or less, a ratio of oxygen element content and nitrogen element content (RO/N) of 0.1 or more and 1.
    Type: Grant
    Filed: July 4, 2018
    Date of Patent: November 8, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Takafumi Izawa, Kengo Tachikawa, Hideharu Iwasaki
  • Patent number: 11476457
    Abstract: The present application discloses a negative active material, a method for preparing the same, and related secondary batteries, battery modules, battery packs and apparatus. The negative active material includes a core material and a polymer-modified coating layer on at least a part of its surface; the core material includes one or more of silicon-based materials and tin-based materials; the coating layer includes sulfur element and carbon element; in the Raman spectrum of the negative active material, the negative active material has scattering peaks at the Raman shifts of 900 cm?1˜960 cm?1, 1300 cm?1˜1380 cm?1 and 1520 cm?1˜1590 cm?1, respectively, in which the scattering peak at the Raman shift of 900 cm?1˜960 cm?1 has a peak intensity recorded as Il, the scattering peak at the Raman shift of 1520 cm?1˜1590 cm?1 has a peak intensity recorded as IG, and Il and IG satisfy 0.2?Il/IG?0.8.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: October 18, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu Liang, Yuzhen Zhao, Yingjie Guan, Yan Wen, Qisen Huang
  • Patent number: 11476462
    Abstract: An LiFePO4 precursor for manufacturing an electrode material of an Li-ion battery and a method for manufacturing the same are disclosed. The LiFePO4 precursor of the present disclosure can be represented by the following formula (I): LiFe(1-a)MaPO4??(I) wherein M and a are defined in the specification, the LiFePO4 precursor does not have an olivine structure, and the LiFePO4 precursor is powders constituted by plural flakes.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: October 18, 2022
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Lih-Hsin Chou, Li-Wen Hu, Chun-Yu Pan, Shao-Ting Hung, Kuei-Chao Wu
  • Patent number: 11469447
    Abstract: Electrolytes and electrolyte additives for energy storage devices comprising sulfonate or carboxylate salt based compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte comprising at least two electrolyte co-solvents, wherein at least one electrolyte co-solvent comprises a sulfonate or carboxylate salt based compound.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: October 11, 2022
    Assignee: ENEVATE CORPORATION
    Inventors: Liwen Ji, Benjamin Yong Park
  • Patent number: 11469410
    Abstract: An exemplary embodiment of the present invention provides a spiral-wound electrode assembly including: a negative electrode and a positive electrode, each of which is configured to include a substrate, and a first composite material and a second composite material formed on opposite surfaces of the substrate; and a separator disposed between the negative electrode and the anode, wherein the first composite material of the negative electrode is disposed farther away from a center of the electrode assembly than the second composite material of the negative electrode, and the first composite material of the negative electrode is oriented with respect to a first surface of the substrate of the negative electrode.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 11, 2022
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Sangjun Lee, Bokhyun Ka, Kyeuyoon Sheem, Jinhyon Lee, Donghyuk Chang
  • Patent number: 11469009
    Abstract: A process for producing a highly conducting film of conductor-bonded graphene sheets that are highly oriented, comprising: (a) preparing a graphene dispersion or graphene oxide (GO) gel; (b) depositing the dispersion or gel onto a supporting solid substrate under a shear stress to form a wet layer; (c) drying the wet layer to form a dried layer having oriented graphene sheets or GO molecules with an inter-planar spacing d002 of 0.4 nm to 1.2 nm; (d) heat treating the dried layer at a temperature from 55° C. to 3,200° C. for a desired length of time to produce a porous graphitic film having pores and constituent graphene sheets or a 3D network of graphene pore walls having an inter-planar spacing d002 less than 0.4 nm; and (e) impregnating the porous graphitic film with a conductor material that bonds the constituent graphene sheets or graphene pore walls to form the conducting film.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: October 11, 2022
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 11456527
    Abstract: The present disclosure is directed to antennas for transmitting and/or receiving electrical signals comprising a MXene composition, devices comprising these antennas, and methods of transmitting and receiving signals using these antennas.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: September 27, 2022
    Assignee: Drexel University
    Inventors: Yury Gogotsi, Babak Anasori
  • Patent number: 11430977
    Abstract: A lithium electrode and a lithium secondary battery including the same. More particularly, in the preparation of the lithium electrode, a protective layer for protecting the lithium metal is formed on the substrate, lithium metal may be deposited on the protective layer and then transferred to at least one side of the current collector to form a lithium electrode having a thin and uniform thickness, and the energy density of the lithium secondary battery using the lithium electrode thus manufactured may be improved.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: August 30, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Suk Il Youn, Byoungkuk Son, Junghun Choi, Minchul Jang
  • Patent number: 11431046
    Abstract: An energy storage device having improved gravimetric energy density is provided, and methods of manufacturing the same. The device can be an electrochemical cell that includes: a negative electrode including a negative electrode active material in electrically conductive contact with a negative electrode current collector and a negative electrode tab including a first attachment end and a second attachment end, the first attachment end of the negative electrode tab being connected to the negative electrode current collector and the second attachment end of the negative electrode tab being connected to a negative terminal; an electrically insulative and ion conductive medium in ionically conductive contact with the positive electrode and the negative electrode; and an outer can containing the positive electrode, negative electrode and electrically insulative and ion conductive medium, where the negative terminal is electrically isolated from the outer can.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 30, 2022
    Assignee: NIO Technology (Anhui) Co., Ltd.
    Inventor: Marc W. Juzkow
  • Patent number: 11417873
    Abstract: Solid-state batteries, battery components, and related processes for their production are provided. The battery electrodes or separators contain sintered electrochemically active material, inorganic solid particulate electrolyte having large particle size, and low melting point solid inorganic electrolyte which acts as a binder and/or a sintering aid in the electrode.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 16, 2022
    Assignee: JOHNSON IP HOLDING, LLC
    Inventors: Lazbourne Alanzo Allie, Adrian M. Grant, Devon Lyman, Lonnie G. Johnson, David Ketema Johnson
  • Patent number: 11393687
    Abstract: A method of forming a semiconductor device structure comprises forming at least one 2D material over a substrate. The at least one 2D material is treated with at least one laser beam having a frequency of electromagnetic radiation corresponding to a resonant frequency of crystalline defects within the at least one 2D material to selectively energize and remove the crystalline defects from the at least one 2D material. Additional methods of forming a semiconductor device structure, and related semiconductor device structures, semiconductor devices, and electronic systems are also described.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 19, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Roy E. Meade, Sumeet C. Pandey
  • Patent number: 11384219
    Abstract: The invention provides a method of making a electrocatalyst from waste tires. The method comprises the steps of providing rubber pieces; optionally contacting the rubber pieces with a sulfonation bath to produce sulfonated rubber; pyrolyzing the rubber to produce tire-derived carbon composite comprising carbon black, wherein the pyrolyzing comprises heating to at least 200° C.-2400° C.; activating the tire-derived carbon composite by contacting the tire-derived carbon composite with an alkali anion compound to provide activated tire-derived carbon supports; and loading the activated carbon-based supports with platinum cubes. In another embodiment, the tire-derived carbon composite is activated by annealing in a carbon dioxide atmosphere.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: July 12, 2022
    Assignees: UT-BATTELLE, LLC, UNIVERSITY OF TENNESSEE RESEARCH FOUNDATION
    Inventors: Amit K. Naskar, Mariappan Paranthaman, Xuan Yang, Younan Xia, Zachary D. Hood, Yunchao Li
  • Patent number: 11367868
    Abstract: An object of the present disclosure is to provide a new sulfur-based positive-electrode active material which can improve cyclability of a lithium-ion secondary battery while maintaining a charging and discharging capacity, a positive-electrode comprising the positive-electrode active material, and a lithium-ion secondary battery comprising the positive-electrode. The sulfur-based positive-electrode active material is one comprising doped nitrogen atoms obtainable by heat-treating a starting material comprising a chain organic compound and sulfur under an atmosphere of a nitrogen atom-doping gas.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: June 21, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuya Kubo, Fumiya Chujo, Yasuhisa Minagawa
  • Patent number: 11349113
    Abstract: A method for preparing iron phosphide (FeP), a positive electrode of a lithium secondary battery including iron phosphide (FeP), for instance, prepared using the method, and a lithium secondary battery including the same. In the lithium secondary battery including the positive electrode using iron phosphide (FeP), the iron phosphide (FeP) adsorbs lithium polysulfide (LiPS) produced during a charge and discharge process of the lithium secondary battery, which is effective in increasing charge and discharge efficiency and enhancing lifetime properties of the battery.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: May 31, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Suenghoon Han, Jungmi Moon, Kwonnam Sohn, Doo Kyung Yang
  • Patent number: 11342555
    Abstract: Provided is particulate of a cathode active material for a lithium battery, comprising one or a plurality of cathode active material particles being embraced or encapsulated by a thin layer of a high-elasticity polymer having a recoverable tensile strain no less than 5%, a lithium ion conductivity no less than 10?6 S/cm at room temperature, and a thickness from 0.5 nm to 10 ?m, wherein the polymer contains an ultrahigh molecular weight (UHMW) polymer having a molecular weight from 0.5×106 to 9×106 grams/mole. The UHMW polymer is preferably selected from polyacrylonitrile, polyethylene oxide, polypropylene oxide, polyethylene glycol, polyvinyl alcohol, polyacrylamide, poly(methyl methacrylate), poly(methyl ether acrylate), a copolymer thereof, a sulfonated derivative thereof, a chemical derivative thereof, or a combination thereof.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: May 24, 2022
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 11335897
    Abstract: Embodiments of the invention include batteries and other charge-storage devices incorporating sheets and/or powders of silica fibers and methods for producing such devices. The silica fibers may be formed via electrospinning of a sol gel produced with a silicon alkoxide reagent, such as tetraethyl ortho silicate, alcohol solvent, and an acid catalyst.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: May 17, 2022
    Assignee: American Nano, LLC
    Inventors: Mitch Dellinger, Surya Raj Banks
  • Patent number: 11335909
    Abstract: A negative electrode active material for an electrochemical device which has improved quick charging characteristics. The negative electrode active material includes two types of graphite particles having a different particle diameter and shows a bimodal distribution, wherein the ratio of the average particle diameter (D50) of the first graphite particles to the average particle diameter (D50) of the second graphite particles is larger than 1.7.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: May 17, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Lilin Piao, Eun-Kyung Kim, Ju-Ho Chung
  • Patent number: 11322733
    Abstract: A negative electrode material for a lithium ion battery comprises a carbon material, a silicon nanomaterial, and a first solvent. The carbon material comprises carbon nanotubes. The carbon material and the silicon nanomaterial are uniformly mixed in the first solvent. The weight percentage of the silicon nanomaterial is between 1% and 30%, and the amount of the carbon material is 1% to 30% of the amount of the silicon nanomaterial. A negative electrode composite slurry for a lithium ion battery comprises the negative electrode material and a graphite mixture material. The graphite mixture material comprises graphite and a second solvent. The graphite is uniformly mixed in the second solvent, and the weight percentage of the graphite is between 20% and 40%.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: May 3, 2022
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chih-Wei Chiu, Chen-Yang Huang
  • Patent number: 11322735
    Abstract: Provided is a lithium secondary battery. The lithium secondary battery includes a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a mixed negative electrode active material including graphite particles and low crystalline carbon-based particles, and the negative electrode active material layer has an apex of an exothermic peak in a temperature range of no less than 370° C. and no more than 390° C., as measured by differential scanning calorimetry (DSC).
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: May 3, 2022
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Jong Hyuk Lee, Dock Young Yoon, Hee Gyoung Kang
  • Patent number: 11312633
    Abstract: A silicon-carbon composite powder having Si and C distributed throughout each particle is provided. The weight ratio of carbon to silicon on the surface of a particle (C/Si)surface is greater than the weight ratio of carbon to silicon within the total particle (C/Si)total. The silicon-carbon composite powder is produced by simultaneously feeding into a reactor a gaseous stream of a SiH4, Si2H6, Si3H8 and/or organosilane and a gaseous stream of at least one hydrocarbon of ethylene, ethane, propane and acetylene and reacting the streams using plasma enhanced chemical vapor deposition.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: April 26, 2022
    Assignee: Evonik Operations GmbH
    Inventor: Julia Lyubina
  • Patent number: 11302915
    Abstract: A negative electrode for non-aqueous electrolyte secondary battery provides a means for improving output characteristics at a high rate. The negative electrode has a negative electrode active material layer having a thickness of 150 to 1500 ?m formed on a surface of a current collector. In addition, the negative electrode active material layer includes coated negative electrode active material particles in which at least a part of a surface of a negative electrode active material is coated with a coating agent containing a coating resin and a conductive aid. Furthermore, a porosity of the negative electrode active material layer is 39.0% to 60.0% and a density of the negative electrode active material layer is 0.60 to 1.20 g/cm3.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: April 12, 2022
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroyuki Tanaka, Gentaro Kano, Hideaki Horie, Yuki Kusachi, Yusuke Nakashima, Kazuya Minami
  • Patent number: 11276862
    Abstract: An electrode using a carbon nanotube as a conductive material and having a small resistance is provided. An electrode for a secondary battery disclosed herein has a collector, and an active material layer formed on the collector. The active material layer includes an active material and carbon nanotubes. Each of the carbon nanotube has a coating of a material including an element with a higher electronegativity than that of carbon on at least a part of the surface thereof.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: March 15, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yuji Yamamoto
  • Patent number: 11271206
    Abstract: Carbon-based electrode materials including graphite particles bridged by hemispheres of fullerene, as well as methods of synthesizing the carbon-based electrode materials, are disclosed. These carbon-based electrode materials may allow for decreased irreversible capacity loss during cycling in lithium-ion battery systems.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: March 8, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Avetik Harutyunyan
  • Patent number: 11271257
    Abstract: Provided is a method for charging a secondary battery configured to both suppress battery short circuits and to reduce battery charging time. The charging method is a multistep secondary battery charging method comprising first charging in which a secondary battery is charged at a first current density I1, and second charging in which the secondary battery is charged at a second current density I2 which is larger than the first current density I1, wherein, when a roughness height of an anode current collecting foil-side surface of a solid electrolyte layer is determined as Y (?m) and a thickness of a roughness coating layer is determined as X (?m), in the first charging, the secondary battery is charged at the first current density I1 until X/Y reaches 0.5 or more.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: March 8, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ximeng Li, Masafumi Nose
  • Patent number: 11258069
    Abstract: A current collector in which, even in the case of using a copper substrate, an electroconductive layer comprising a thermoplastic resin and an electroconductive material and covering the copper substrate provides the same positive temperature coefficient resistance function as the case of using an aluminum substrate. The current collector may comprise: a copper substrate comprising a copper oxide layer that an average content of an oxygen element present within a thickness of 1.0 ?m or less from a surface of the copper substrate, is 10.5 at % or more, and a positive temperature coefficient resistance layer comprising a thermoplastic resin and an electroconductive material and covering the copper oxide layer of the copper substrate.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: February 22, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideyo Ebisuzaki, Yasumasa Oguma
  • Patent number: 11251438
    Abstract: A structure, and more specifically a tube-shaped structure having an inner surface and two ends, wherein one or both ends are open and the inner surface is exposed through said one or both open ends, and a metal provide on the inner surface. Also, an electrode active material, such as lithium metal, on the metal included on the inner surface of the tube.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: February 15, 2022
    Assignees: LG ENERGY SOLUTION, LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Eunkyung Park, Jang Wook Choi, Byung Gon Kim, Minchul Jang, Byoungkuk Son, Junghun Choi, Donghyeon Kang
  • Patent number: 11245116
    Abstract: An electrode using a carbon nanotube as a conductive material and having a small resistance is provided. An electrode for a secondary battery disclosed herein has a collector, and an active material layer formed on the collector. The active material layer includes an active material and carbon nanotubes. Each of the carbon nanotube has a coating of a material including an element with a higher electronegativity than that of carbon on at least a part of the surface thereof.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: February 8, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yuji Yamamoto
  • Patent number: 11228025
    Abstract: A secondary battery includes a cathode, an anode, and an electrolytic solution, in which the anode includes a plurality of first anode active material particles, a plurality of second anode active material particles, a first anode binder, and a second anode binder. The plurality of first anode active material particles include carbon, and an R value of the plurality of first anode active material particles is from 0.35 to 0.45, and a median diameter of the plurality of first anode active material particles is from 5 ?m to 14.5 ?m. The plurality of second anode active material particles include carbon, and the R value of the plurality of second anode active material particles is from 0.1 to 0.25, and a median diameter of the plurality of second anode active material particles is from 15 ?m to 25 ?m.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 18, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takatoshi Munaoka, Masayuki Ihara, Shigeru Fujita
  • Patent number: 11223034
    Abstract: Systems and methods for thermal gradient during electrode pyrolysis may include fabricating the battery electrode by pyrolyzing an active material on a metal current collector, wherein the active material comprises silicon particles in a binder material, the binder material being pyrolyzed such that a resistance at an inner surface of the active material in contact with the current collector is at least 50% higher than a resistance at an outer surface of the active material. The active material may be pyrolyzed by electromagnetic radiation, which may be provided by one or more lasers, which may include one or more CO2 lasers. The electromagnetic radiation may be provided by one or more infrared lamps. An outer edge of the current collector may be gripped using a thermal transfer block that removes heat from the current collector during pyrolysis of the active material and subsequent cool down.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: January 11, 2022
    Assignee: Enevate Corporation
    Inventors: Jill Renee Pestana, Benjamin Park, Michael Buet, Giulia Canton
  • Patent number: 11201329
    Abstract: A negative electrode and a rechargeable lithium battery, the negative electrode including a current collector; and a negative active material layer on the current collector, the negative active material including a carbon negative active material; wherein: an electrode density of the negative electrode is in the range of about 1.0 g/cc to about 1.5 g/cc, and a DD (Degree of Divergence) value as defined by the following Equation 1 is about 24 or greater, DD (Degree of Divergence)=(Ia/Itotal)*100??[Equation 1] wherein, in Equation 1, Ia is a sum of peak intensities at non-planar angles measured by XRD using a CuK? ray, and Itotal is a sum of peak intensities at all angles measured by XRD using a CuK? ray.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: December 14, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jinhyon Lee, Bokhyun Ka, Kyeuyoon Sheem, Soon Ho Ahn
  • Patent number: 11196037
    Abstract: Silicon particles for active materials and electro-chemical cells are provided. The active materials comprising silicon particles described herein can be utilized as an electrode material for a battery. In certain embodiments, the composite material includes greater than 0% and less than about 90% by weight of silicon particles. The silicon particles have an average particle size between about 0.1 ?m and about 30 ?m and a surface including nanometer-sized features. The composite material also includes greater than 0% and less than about 90% by weight of one or more types of carbon phases. At least one of the one or more types of carbon phases is a substantially continuous phase.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: December 7, 2021
    Assignee: ENEVATE CORPORATION
    Inventors: Benjamin Yong Park, Alexander Gorkovenko, Rabih Bachir Zaouk, William Hubert Schank, Genis Turon Teixidor, Lothar Steffens
  • Patent number: 11158850
    Abstract: A novel composite electrode material and a method for manufacturing the same, a composite electrode containing the said composite electrode material, and a Li-based battery comprising the said composite electrode are disclosed. Herein, the composite electrode material of the present invention comprises: a core, wherein a material of the core is at least one selected from the group consisting of Sn, Sb, Si, Ge, C, a compound thereof and a complex thereof; and a conductive carbon nanoparticle, wherein the conductive carbon nanoparticle grows on a surface of the core.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: October 26, 2021
    Assignee: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Yon-Hua Tzeng, Wei-Chih Huang
  • Patent number: 11158902
    Abstract: To provide a highly reliable rectangular secondary battery. A rectangular secondary battery (20) includes: an electrode body (3) that includes a positive electrode plate and a negative electrode plate; a rectangular casing (1) that includes an opening and that contains the electrode body (3); and a sealing plate (2) that seals the opening of the rectangular casing (1). The sealing plate (2) includes a gas discharge valve (17) that ruptures when the pressure inside the rectangular casing (1) has a predetermined value or more to discharge gas inside the rectangular casing (1) to outside the rectangular casing (1). A portion of a second negative electrode current collector (8b) is disposed, as a shielding member, at a location that is between the sealing plate (2) and the electrode body (3) and that faces the gas discharge valve (17).
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: October 26, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Hiroyuki Yamada
  • Patent number: 11158847
    Abstract: Composite particles and a negative electrode active material including such particles for an electrochemical device. The negative electrode active material is capable of lithium intercalation/deintercalation and includes composite particles including a carbon phase including a carbonaceous material, silicon (Si) and lithium fluoride (LiF). The Si and LiF may be present as Si—LiF mixed particles, which are dispersed in the carbon phase, wherein the Si—LiF mixed particles are dispersed in the carbon phase with uniform or non-uniform distribution. In addition, the composite particles include the carbon phase mixed uniformly or amorphously with the Si—LiF mixed particles.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: October 26, 2021
    Assignee: LG CHEM, LTD.
    Inventors: So-Ra Lee, Seo-Young Kwon, Jee-Eun Kim, Ji-Young Park, Pil-Kyu Park, Hyeon-Min Song, Kwi-Sub Yun, U-Jin Yoon, Jae-Young Lee, Yong-Ju Lee, Jung-Hyun Choi
  • Patent number: 11152620
    Abstract: An process for producing multiple porous graphene particulates for a lithium battery anode, the process comprising: (a) preparing a graphene dispersion having multiple anode material particles, multiple sheets of a starting graphene material, and a blowing agent dispersed in a liquid medium, wherein the blowing agent-to-graphene material weight ratio is from 0.01/1.0 to 1.0/1.0; (b) dispensing, forming and drying the graphene dispersion into multiple droplets containing therein graphene sheets, particles of the anode active material, and the blowing agent; and (c) heat treating the droplets at a heat treatment temperature selected from 80° C. to 3,200° C. at a desired heating rate sufficient to induce volatile gas molecules from the non-carbon elements or to activate the blowing agent for producing the multiple porous graphene particulates.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: October 19, 2021
    Assignee: Global Graphene Group, Inc.
    Inventors: Sheng-Yi Lu, Wen Y. Chiu, Bor Z. Jang
  • Patent number: 11128019
    Abstract: One aspect of the present invention is directed to an energy storage device electrode including a conductive electrode substrate including a main body and at least one plate-shaped tab and an insulating layer coating a surface and a side surface of a base end of the tab.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: September 21, 2021
    Assignee: GS Yuasa International Ltd.
    Inventor: Tetsuya Murai
  • Patent number: 11127945
    Abstract: An electrode for a metal-ion battery is provided wherein the active layer of the electrode comprises a plurality of low porosity particles comprising an electroactive material selected from silicon, silicon oxide germanium, tin, aluminium and mixtures thereof and a plurality of carbon particles selected from one or more of graphite, soft carbon and hard carbon. The ratio of the D50 particles size of the carbon particles to the D50 particle diameter of the porous particles is in the range of from 1.5 to 30. Also provided are rechargeable metal-ion batteries comprising said electrode and compositions of porous particles and carbon particles which may be used to prepare the active layer of said electrode.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: September 21, 2021
    Assignee: Nexeon Limited
    Inventors: Tsuyonobu Hatazawa, Christopher Michael Friend
  • Patent number: 11127948
    Abstract: A novel hybrid lithium-ion anode material based on coaxially coated Si shells on vertically aligned carbon nanofiber (CNF) arrays. The unique cup-stacking graphitic microstructure makes the bare vertically aligned CNF array an effective Li+ intercalation medium. Highly reversible Li+ intercalation and extraction were observed at high power rates. More importantly, the highly conductive and mechanically stable CNF core optionally supports a coaxially coated amorphous Si shell which has much higher theoretical specific capacity by forming fully lithiated alloy. Addition of surface effect dominant sites in close proximity to the intercalation medium results in a hybrid device that includes advantages of both batteries and capacitors.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: September 21, 2021
    Assignee: CF TRAVERSE LLC
    Inventor: Ronald A. Rojeski
  • Patent number: 11127953
    Abstract: The present invention relates to a carbon nanotube-transition metal oxide composite and a method for making the composite. The composite comprises at least one carbon nanotube and a plurality of transition metal oxide nanoparticles. The plurality of transition metal oxide nanoparticles are chemically bonded to the at least one carbon nanotube through carbon-oxygen-metal (C—O-M) linkages, wherein the metal is a transition metal element. The method for making the composite comprising the following steps: step 1, providing at least one carbon nanotube obtained from a super-aligned carbon nanotube array; step 2, pre-oxidizing the at least one carbon nanotube; step 3, dispersing the at least one carbon nanotube in a solvent to form a first suspension; step 4, dispersing a material containing transition metal oxyacid radicals in the first suspension to form a second suspension; and step 5, removing the solvent from the second suspension and drying the second suspension.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: September 21, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Da-Tao Wang, Li Sun, Ke Wang, Jia-Ping Wang, Shou-Shan Fan
  • Patent number: 11127952
    Abstract: A material for a negative electrode active material having capability of achieving excellent cycle performance while maintaining satisfactory initial efficiency (initial capacity), a production method for the material, a composition for a negative electrode, using the material, a negative electrode, and a secondary battery. A core-shell structure that includes the following components (A) and (B), and satisfies the following conditions (i) and (ii): (A): a core containing at least Si (silicon), O (oxygen) and C (carbon) as a constituent element, and containing crystalline carbon and non-crystalline carbon as a constituent; and (B): a shell encapsulating the core, and including a SiOC structure having a graphene layer, and (i): having an atomic composition represented by formula SiOxCy (0.5<x<1.8, 1.0<y<5.0), and (ii): having a predetermined value of less than 1.0×105 ?·cm in specific resistance determined by powder resistance measurement.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: September 21, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yoshihito Takano, Masakazu Kondo, Hirotsuna Yamada
  • Patent number: 11114670
    Abstract: A negative electrode according to one embodiment of the present invention comprises a current collector and a negative electrode active material layer disposed on the current collector, wherein the negative electrode active material layer includes a first particle and a second particle, the first particle includes a first core including artificial graphite; and a first shell disposed on the first core, said first shell including an oxide of the artificial graphite, wherein a sphericity of the first particle measured through a particle shape analyzer is from 0.94 to 0.98, the second particle is artificial graphite having sphericity measured through the particle shape analyzer of 0.70 to 0.92, and a weight ratio of the first particle and the second particle is from 1:1 to 1:9.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: September 7, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Su Min Lee, Sun Young Shin, Su Yeon Lee, Eun Kyung Kim
  • Patent number: 11108045
    Abstract: The invention relates to a host material for stabilizing a Li metal electrode, fabricating methods and applications of the same. The host material includes crumpled graphene balls operably defining a scaffold having volumes and voids inside and in between the crumpled graphene balls so as to allow uniform and stable Li deposition/dissolution inside and in between the crumpled graphene balls without electrode volume fluctuations or with sufficiently small electrode volume fluctuations. The crumpled paper ball-like structures of graphene particles can readily assemble to yield the scaffold with scalable Li loading up to 10 mAh cm-2 within tolerable volume fluctuations. High Coulombic efficiency of 97.5% over 750 cycles (1500 hours) is achieved. Plating/stripping Li up to 12 mAh cm-2 on the crumpled graphene scaffold does not experience dendrite growth.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: August 31, 2021
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Jiaxing Huang, Jiayan Luo
  • Patent number: 11094931
    Abstract: A negative electrode active material for a lithium ion secondary battery includes silicon oxide particles, each of which has carbon on at least a portion of its surface, in which: a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, which is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, which is derived from SiO2, is within a range of from 1.0 to 2.6, when CuK? radiation having a wavelength of 0.15406 nm is used as a radiation source; and a ratio (SH2O/SN2) of a specific surface area calculated from moisture adsorption at 298 K to a specific surface area calculated from nitrogen adsorption at 77 K is 0.60 or less.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: August 17, 2021
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Akira Yasuda, Yoshie Ohsaki, Tatsuya Nishida
  • Patent number: 11088359
    Abstract: A secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes a first anode active material, a second anode active material, and an anode binder. The first anode active material includes a first central portion and a first coating portion. The first central portion includes a material that includes silicon as a constituent element, and the first coating portion is provided on a surface of the first central portion and includes one or both of a polyacrylate salt and a carboxymethylcellulose salt. The second anode active material includes a material that includes carbon as a constituent element. The anode binder includes one or more of polyvinylidene fluoride, polyimide, and aramid.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: August 10, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yosuke Koike, Yoshihide Nagata, Kazuaki Takada
  • Patent number: 11088365
    Abstract: Described is a core-shell nanoparticle comprising a lithium sulfide nanoparticle core and a shell covering the lithium sulfide nanoparticle core. The core-shell nanoparticle may be used for a positive electrode in a lithium/sulfur battery cell.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: August 10, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventor: Elton J. Cairns
  • Patent number: 11081688
    Abstract: A battery electrode is provided that includes a porous silicon microstructure precursor, a silicon shell coating deposited on the silicon microstructure precursor, and a graphene coating deposited on the silicon shell coating, where the graphene coating encapsulates the silicon shell coating forming a graphene-encapsulated silicon-shell-protected porous silicon microstructure precursor battery electrode.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: August 3, 2021
    Assignee: THE BD OF TRUSTEES OF THE LELAND STANFORD JR UNIV
    Inventors: Yi Cui, Lei Liao, Jiangyan Wang
  • Patent number: 11066305
    Abstract: A porous silicon material including silicon nanoparticles and clusters of silicon nanoparticles, where the pores are cooperatively defined by the nanoparticles within the clusters.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: July 20, 2021
    Assignee: ionobell Inc
    Inventors: Robert C. Ionescu, Chueh Liu
  • Patent number: 11063255
    Abstract: A negative electrode active material for a lithium ion secondary battery includes silicon oxide particles, each of which has carbon on at least a portion of its surface, in which: a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, which is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, which is derived from SiO2, is within a range of from 1.0 to 2.6, when CuK? radiation having a wavelength of 0.15406 nm is used as a radiation source; and a specific surface area calculated from carbon dioxide adsorption at 273 K is 8.5 m2/g or less.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: July 13, 2021
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Akira Yasuda, Yoshie Ohsaki, Tatsuya Nishida