Organic Component Is A Binder Patents (Class 429/217)
  • Patent number: 11329286
    Abstract: A lithium cobalt-based positive electrode active material is provide, which includes sodium and calcium, wherein the total amount of the sodium and calcium is 150 ppm to 500 ppm based on the total weight of the lithium cobalt-based positive electrode active material. A method for preparing the lithium cobalt-based positive electrode active material is also provided.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: May 10, 2022
    Inventors: Sung Bin Park, Min Kyu You, Chi Ho Jo, Hyuck Hur, Jin Tae Hwang, Wang Mo Jung
  • Patent number: 11329269
    Abstract: This application relates to a battery comprising a positive electrode plate, a separator, and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and at least two layers of positive active material coated on at least one surface of the positive electrode current collector, and wherein an underlying positive active material layer in contact with the positive electrode current collector comprises a first positive active material, a first polymer material and a first conductive material; and wherein an upper positive active material layer in contact with the underlying positive active material layer and away from the positive electrode current collector comprises a second positive active material, a second polymer material and a second conductive material, and the first polymer material comprises fluorinated polyolefin and/or chlorinated polyolefin polymer material. The battery has good safety and improved electrical properties.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: May 10, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Yuqun Zeng, Yongshou Lin, Zhenhua Li, Haizu Jin, Xiaowen Zhang
  • Patent number: 11319391
    Abstract: Disclosed is a composition for non-aqueous secondary battery adhesive layer which comprises a particulate polymer and a binder, wherein the particulate polymer comprises 5% to 50% by mass of a (meth)acrylonitrile monomer unit and 0.1% to 3.5% by mass of a cross-linkable monomer unit. Also disclosed is a non-aqueous secondary battery adhesive layer prepared by using the composition for non-aqueous secondary battery adhesive layer. Also disclosed is a laminate which comprises a substrate and the non-aqueous secondary battery adhesive layer disposed on at least one side of the substrate either directly or indirectly through one or more other layers. Also disclosed is a non-aqueous secondary battery wherein at least one of a positive electrode, a negative electrode, and a separator comprises the non-aqueous secondary battery adhesive layer.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: May 3, 2022
    Assignee: ZEON CORPORATION
    Inventors: Junnosuke Akiike, Keiichiro Tanaka, Kazuki Asai, Kei Oura
  • Patent number: 11289692
    Abstract: A power storage device with high capacity is provided. A power storage device with high energy density is provided. A highly reliable power storage device is provided. A long-life power storage device is provided. An electrode with high capacity is provided. An electrode with high energy density is provided. A highly reliable electrode is provided. Such a power storage device includes a first electrode and a second electrode. The first electrode includes a first current collector and a first active material layer. The first active material layer includes active material particles, spaces provided on the periphery of the active material particles, graphene, and a binder. The active material particles are silicon. The active material particles and the spaces are surrounded by the graphene and the binder.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: March 29, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Kiyofumi Ogino
  • Patent number: 11289699
    Abstract: A method for producing a coated powder including homogeneously mixing an electrochemically active material including electrochemically active particles with nanosize particles in a ratio determined by the surface area of the electrochemically active particles to form a homogeneous powder, adding a polymer and mixing to form a homogeneous solid mixture, adding a solvent to dissolve the polymer and form a viscous slurry, mixing the viscous slurry, and drying the viscous slurry to cause the nanosize particles to become localized adjacent to an outer surface of the electrochemically active particles with the polymer maintaining the proximity between the nanosize conductive particles and the outer surface of the electrochemically active particles.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: March 29, 2022
    Assignee: Physical Sciences, Inc.
    Inventor: Christopher M. Lang
  • Patent number: 11289689
    Abstract: A method of making an electrode includes the step of mixing active material particles, radiation curable resin precursors, and electrically conductive particles to create an electrode precursor mixture. The electrode precursor mixture is electrostatically sprayed onto a current collector to provide an electrode preform. The electrode preform is heated and calendered to melt the resin precursor such that the resin precursor surrounds the active particles and electrically conductive particles. Radiation is applied to the electrode preform sufficient to cure the radiation curable resin precursors into resin.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: March 29, 2022
    Assignee: UTBATTELE, LLC
    Inventors: Zhijia Du, Christopher James Janke, Jianlin Li, David L. Wood, III, Claus Daniel
  • Patent number: 11289739
    Abstract: The disclosed non-aqueous secondary battery functional layer is formed using a composition that includes non-conductive inorganic particles and organic particles, wherein a difference in density between the non-conductive inorganic particles and the organic particles is 1.5 g/cm3 or more, at least a surface layer portion of the organic particles is made of polymer having a degree of swelling in electrolysis solution of greater than 1 time to 4 times and having a glass-transition temperature of 50° C. or above, and a volume-average particle diameter of the organic particles is 0.80 to 1.50 times a volume-average particle diameter of the non-conductive inorganic particles.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: March 29, 2022
    Assignee: ZEON CORPORATION
    Inventor: Keiichiro Tanaka
  • Patent number: 11289707
    Abstract: An all-solid secondary battery including: a cathode; an anode; and a solid electrolyte layer interposed between the cathode and the anode, wherein the cathode includes a cathode active material, wherein the anode includes an anode current collector and an anode active material layer on the anode current collector, wherein the anode active material layer includes a binder and an anode active material that does not include an alkali metal, wherein the binder includes a polymer main chain and a polyvinyl alcohol-containing copolymer, and wherein the polymer main chain includes polyvinyl alcohol, a polyvinyl alcohol derivative, or a combination thereof, and the polyvinyl alcohol-containing copolymer has at least one repeating unit linked to the polymer main chain.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: March 29, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Yonggun Lee, Toshinori Sugimoto, Saebom Ryu, Yuichi Aihara, Dongmin Im
  • Patent number: 11289706
    Abstract: A lithium ion secondary battery includes a positive electrode having a positive electrode active material layer on a current collector, a negative electrode having a negative electrode active material layer on a current collector, and a separator disposed between the positive electrode and the negative electrode and impregnated with a non-aqueous electrolyte solution. The positive electrode active material layer contains a positive electrode active material and a binder, the negative electrode active material layer contains a negative electrode active material and a binder, the binder of the negative electrode active material layer contains a copolymer of vinyl alcohol and an alkali metal neutralized product of ethylenically unsaturated carboxylic acid, and the separator includes a polymeric base material containing an inorganic compound or includes a polymer having a melting point or glass transition temperature of 140° C. or higher.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: March 29, 2022
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Yuta Ikeuchi, Taichi Sakamoto, Takashi Mukai, Masahiro Yanagida, Junichi Fujishige, Masako Kinno, Erina Takahashi
  • Patent number: 11276900
    Abstract: A nonaqueous electrolyte secondary battery includes a flat wound electrode body that includes a positive electrode sheet, a negative electrode sheet, and a separator sheet, and a nonaqueous electrolyte. The wound electrode body includes a filling layer containing a thermal polymerization product of a resin having electrolyte solution swellability between the negative electrode sheet and the separator sheet.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: March 15, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinsuke Matsuhara, Kazuhisa Takeda
  • Patent number: 11267710
    Abstract: In the present invention, by dry pulverizing carbon nanotubes to control wettability index of the carbon nanotubes, the maximum concentration of the carbon nanotubes that can be added to the dispersion solvent can be increased and the workability of the carbon nanotube dispersion can be improved. Further, from this, it is possible to more easily predict the maximum concentration of the carbon nanotubes that can be added to the dispersion solvent.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: March 8, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Jae Keun Yoon, Dong Hyun Cho, Sung Jin Kim, Kyung Yeon Kang
  • Patent number: 11264615
    Abstract: A binder includes a cross-linked product of at least a first polymer, a second polymer, and a third polymer, wherein the cross-linked product is cross-linked by at least two ester bonds; the first polymer includes polyimide, polyamic acid, a copolymer thereof, or a combination thereof, wherein the first polymer includes a structural unit including an alkali metal and a structural unit including at least one hydroxyl functional group; the second polymer includes poly(acrylic acid), poly(methacrylic acid), a copolymer thereof, or a combination thereof; and the third polymer includes polyvinyl alcohol, polyacrylamide, polymethacrylamide, a copolymer thereof, or a combination thereof.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 1, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO.. LTD.
    Inventors: Woojin Bae, Kanghee Lee, Heechul Jung, Seongho Jeon, Sungsoo Han
  • Patent number: 11264631
    Abstract: Methods and systems are provided for manufacturing a bipolar plate for a redox flow battery. In one example, the bipolar plate is fabricated by a roll-to-roll process. The bipolar plate includes a non-conductive substrate that is coupled to a negative electrode on a first surface and coupled to a positive electrode on a second surface, the first surface opposite of the second surface.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: March 1, 2022
    Assignee: ESS TECH, INC.
    Inventor: Craig E. Evans
  • Patent number: 11239460
    Abstract: A method of producing a powder mass for a lithium battery, comprising: (a) mixing an inorganic filler and an elastomer or its precursor in a liquid medium or solvent to form a suspension; (b) dispersing a plurality of particles of a cathode active material in the suspension to form a slurry; and (c) dispensing the slurry and removing the solvent and/or polymerizing or curing the precursor to form the powder mass, wherein at least a particulate comprises one or a plurality of cathode active material particles being encapsulated by a layer of inorganic filler-reinforced elastomer having a thickness from 1 nm to 10 ?m, a fully recoverable tensile strain from 2% to 500%, and a lithium ion conductivity from 10?7 S/cm to 5×10?2 S/cm and the inorganic filler has a lithium intercalation potential from 1.1 V to 4.5 V versus Li/Li+.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: February 1, 2022
    Assignee: Global Graphene Group, Inc.
    Inventors: Baofei Pan, Hui He, Bor Z. Jang
  • Patent number: 11233232
    Abstract: The present invention relates to silicon-based active material for negative electrodes, in particular electrodes with increased service life, in particular for use in batteries, a method for their manufacture, and negative electrodes, batteries, and devices that contain this silicon-based active material.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: January 25, 2022
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventor: Linda-Susann Schramm
  • Patent number: 11231778
    Abstract: A bidirectional self-healing neural interface includes a first elastic substrate; a neural electrode disposed on the first elastic substrate and comprising a conductive polymer composite; and a second elastic substrate disposed on the neural electrode. The conductive polymer composite includes a matrix formed of a self-healing polymer material; and a plurality of electrical conductor clusters distributed in the matrix. Each of the electrical conductor clusters includes particles of a first electrical conductor; and a plurality of particles of a second electrical conductor formed of the same material as that of the first electrical conductor, distributed around each of the particles of the first electrical conductor, and having sizes that are smaller than those of the particles of the first electrical conductor. The first electrical conductor is a source for generating the second electrical conductor.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: January 25, 2022
    Assignee: Korea Institute of Science and Technology
    Inventors: Hyunseon Seo, Inchan Youn, Hyojin Lee, Kang-Il Song, Donghee Son
  • Patent number: 11233231
    Abstract: The purpose of the present invention is to provide an electrode with reduced thermal deterioration even though the electrode has an insulating layer comprising a polyimide. The present invention relates to an electrode comprising a current collector and an electrode mixture layer, wherein the electrode comprises an insulating layer comprising a polyimide and an aromatic compound having an electron donating group and an organic acid group.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: January 25, 2022
    Assignee: NEC CORPORATION
    Inventors: Kazuhiko Inoue, Shin Serizawa
  • Patent number: 11228037
    Abstract: High performance electrodes for electrochemical devices having a polymer network with an electroactive material chemically attached to a crosslinked polymer matrix are disclosed. A method includes mixing an electrode slurry and forming a polymer network within the electrode slurry. The electrode slurry includes an electroactive material, an electrically conductive filler, a plurality of polymer chains, and a plurality of chemical crosslinking precursors. Each chemically crosslinking precursor is configured to (i) chemically crosslink the plurality of polymer chains and (ii) chemically attach the electroactive material to the plurality of polymer chains.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: January 18, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Xiaosong Huang, Nicole Ellison
  • Patent number: 11228055
    Abstract: Electrochemical cells comprising electrodes comprising lithium (e.g., in the form of a solid solution with non-lithium metals), from which in situ current collectors may be formed, are generally described.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: January 18, 2022
    Assignee: Sion Power Corporation
    Inventors: Zhaohui Liao, Chariclea Scordilis-Kelley, Michael G. Laramie
  • Patent number: 11223046
    Abstract: Disclosed is a binder composition for secondary batteries including composite latex comprising conjugated diene latex particles (A) and copolymer latex particles (B), each present in an independent phase, wherein the composite latex has a pH of 7 or less.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: January 11, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Min Ah Kang, Dong Jo Ryu, Cheol Hoon Choi, Seon Hee Han, Hye Soo Han
  • Patent number: 11217824
    Abstract: An electrolyte for a lithium-sulfur battery and the lithium-sulfur battery including the electrolyte, more particularly, an electrolyte for the lithium-sulfur battery including lithium salt, an organic solvent and an additive, wherein the additive includes an alkali metal salt-type ionomer. The electrolyte for the lithium-sulfur battery improves the migration characteristics of lithium ions and thus improves the capacity and life characteristics of the lithium-sulfur battery by including a polymer containing the alkali metal ion as an additive.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: January 4, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Seung Yoon Yang, Doo Kyung Yang
  • Patent number: 11196038
    Abstract: Provided is a method for manufacturing a flexible electrode, including the steps of: (i) coating a porous current collector having a plurality of pores with an active material slurry having a solid content of 30-50% and drying the active material slurry to form an active material coating layer; (ii) coating an active material slurry having a solid content of 30-50% on the active material coating layer formed from the preceding step and drying the active material slurry to form an additional active material coating layer; and (iii) repeating step (ii) n times (1?n?5) to form multiple active material coating layers, thereby forming an electrode active material layer in the pores and on the surface of the porous current collector in a non-press mode. A flexible electrode obtained from the method and a lithium secondary battery including the flexible electrode are also provided.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: December 7, 2021
    Inventors: Ju-Ryoun Kim, Min-Kyu You, In-Sung Uhm
  • Patent number: 11196036
    Abstract: A fast charge lithium ion battery capable of being charged or discharged with 80% capacity retention at C rate of at least 2C is provided in the present invention, which includes a fast charge graphite-based anode; a cathode; and a separator, wherein the anode includes an anode current collector and a fast charge graphite layer deposited on at least one surface of the anode current collector, the fast charge graphite having a lattice constant equals to or larger than 0.3374 nm, a D-band to G-band integrated area ratio (ID/IG) of 0.03 to 0.3, and a surface morphology of a plate-like crystal structure under a scanned electron microscope; the cathode includes a cathode current collector and one or more active materials deposited on at least one surface of the cathode current collector.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: December 7, 2021
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Juncao Bian, Shengbo Lu, Chenmin Liu, Wai Yin Wong, Hong Zhao
  • Patent number: 11183710
    Abstract: An electrolyte for a lithium-sulfur battery and the lithium-sulfur battery including the electrolyte, more particularly, an electrolyte for the lithium-sulfur battery including lithium salt, an organic solvent and an additive, wherein the additive includes an alkali metal salt-type ionomer. The electrolyte for the lithium-sulfur battery improves the migration characteristics of lithium ions and thus improves the capacity and life characteristics of the lithium-sulfur battery by including a polymer containing the alkali metal ion as an additive.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: November 23, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Seung Yoon Yang, Doo Kyung Yang
  • Patent number: 11183675
    Abstract: The invention relates to a method for producing an electrode (E) for an electrochemical cell, in particular for a lithium cell. In order to produce a homogeneous mixture allowing the time-saving, cost-effective production, for example by dry coating, of an electrode (E) with improved properties and/or with a layer thickness significantly greater than 100 ?m, for example for vehicle batteries, in particular for electric and/or hybrid vehicles, in said method at least one binder (B) and at least one particulate fibrillation auxiliary agent (F) are mixed in a mixing process with a high shear load, the at least one binder (B) being fibrillated (fB), and at least one electrode component (E1) is then added to the at least one fibrillated binder (B) in a mixing process with a low shear load. The invention also relates to an electrode (E) produced in this manner and to an electrochemical cell equipped with an electrode (E) of this type.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: November 23, 2021
    Assignees: Robert Bosch GmbH, GS Yuasa International Ltd.
    Inventors: Bernd Reinsch, Leonore Glanz, Calin Iulius Wurm, Harald Bauer, Wolfgang Weydanz
  • Patent number: 11165058
    Abstract: A negative electrode active material contains a negative electrode active material particle; the negative electrode active material particle including a silicon compound particle containing a silicon compound (SiOx: 0.5?x?1.6), wherein the silicon compound particle contains a Li compound, and the negative electrode active material particle contains at least one kind of salt selected from salts of polyacrylic acid and salts of carboxymethyl cellulose, together with a metal salt containing at least one kind of metal selected from Mg and Al. This provides a negative electrode active material that is capable of stabilizing slurry that is produced in production of a negative electrode for a secondary battery, and improving initial charge-discharge characteristics and cycle performance when it is used as a negative electrode active material for a secondary battery.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: November 2, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu Hirose, Kohta Takahashi, Takumi Matsuno, Reiko Sakai
  • Patent number: 11152667
    Abstract: A particulate polymer for a binder of a lithium ion secondary battery, wherein ion conductivity of a film formed by the particulate polymer after being immersed in an electrolytic solution at 60° C. for 72 hours is 1×10?5 S/cm to 1×103 S/cm, and tensile strength of the film is 500 N/cm2 to 4000 N/cm2.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: October 19, 2021
    Assignee: ZEON CORPORATION
    Inventors: Tomokazu Sasaki, Junnosuke Akiike
  • Patent number: 11152607
    Abstract: A negative electrode and a rechargeable lithium battery, the negative electrode including a current collector; and a negative active material layer on at least one surface of the current collector, the negative active material layer including a carbon negative active material and a conductive agent, wherein the conductive agent includes at least one of a fiber-shaped conductive agent having a average length of about 1 ?m to about 200 ?m and a particle-shaped conductive agent having a average long diameter of about 1 ?m to about 20 ?m, and a DD (Degree of Divergence) value defined by 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 intensity at all angles measured by XRD using a CuK? ray.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jinhyon Lee, Bokhyun Ka, Kyeuyoon Sheem, Soon Ho Ahn, Junkyu Lee
  • Patent number: 11152657
    Abstract: A metal-air battery and a component air cathode including a solid ionically conductive polymer material.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: October 19, 2021
    Assignee: Ionic Materials, Inc.
    Inventors: Michael A. Zimmerman, Alexei B. Gavrilov, G. Stephen Kelsey, Keith Smith
  • Patent number: 11145896
    Abstract: Solid-state lithium ion electrolytes of lithium potassium tantalate based compounds are provided which contain an anionic framework capable of conducting lithium ions. An activation energy of the lithium metal silicate composites is from 0.12 to 0.45 eV and conductivities are from 10?3 to 40 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 tantalate based materials and batteries with such electrodes are also provided.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: October 12, 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: 11145865
    Abstract: A nonaqueous electrolyte secondary battery includes a first electrode plate including a core plate and an active material layer including an active material and a binder, and disposed on a surface of the core plate; a second electrode plate; and a nonaqueous electrolyte. When the surface of the active material layer in contact with the core plate is taken as zero point, the amount of the binder in a 0%-10% thickness region X is 8.5 to 9.5 mass % of the total amount of the binder in the active material layer, the amount of the binder in a 90%-100% thickness region Y is 9.5 to 11.5 mass % of the total amount of the binder in the active material layer, and a binder-richest portion across the thickness of the active material layer resides in a 55%-100% thickness region across the thickness of the active material layer.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: October 12, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Naoki Uchida, Ayumi Kochi, Haruya Nakai
  • Patent number: 11133522
    Abstract: The present disclosure provides for a lithium-sulfur battery with a dual blocking layer between the anode and cathode, providing for high storage capacity and improved performance.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: September 28, 2021
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Lain-Jong Li, Jun Ming
  • Patent number: 11133564
    Abstract: This application relates to a positive electrode plate and an electrochemical device. The positive electrode plate includes a current collector, a safety coating, a difficultly soluble layer and a positive active material layer, wherein the safety coating, the difficultly soluble layer and the positive active material layer are successively disposed on the current collector; wherein the safety coating includes a polymer matrix, a conductive material and an inorganic filler; wherein the difficultly soluble layer includes a binder and a conductive agent, and wherein the binder of the difficultly soluble layer has a solubility in an oil solvent smaller than the solubility of the polymer matrix of the safety coating in such oil solvent.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: September 28, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Xing Li, Zhenhua Li, Haizu Jin
  • Patent number: 11118044
    Abstract: The present invention pertains to a process for the manufacture of a dense film. The process includes processing, in a molten phase, a solid composition [composition (C)] comprising; at least one vinylidene fluoride (VDF) fluoropolymer comprising one or more carboxylic acid functional end groups [polymer (F)], at least one poly(alkylene oxide) (PAO) of formula (I): HO—(CH2CHRAO)n—RB??(I) wherein RA is a hydrogen atom or a C1-C5 alkyl group, RB is a hydrogen atom or a —CH3 alkyl group and n is an integer comprised between 2000 and 40000, preferably between 4000 and 35000, more preferably between 11500 and 30000, and -optionally, at least one inorganic filler [filler (I)]; thereby providing a dense film having a thickness of from 5 ?m to 30 ?m. The present invention also pertains to the dense film provided by this process and to the use of the dense film as dense separator in electrochemical devices.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: September 14, 2021
    Assignee: SOLVAY SPECIALTY POLYMER ITALY S.P.A.
    Inventors: Julio A. Abusleme, Christine Hamon, Giorgio Canil, Marco Mirenda
  • Patent number: 11121423
    Abstract: A metal-air battery and a component air cathode including a solid ionically conductive polymer material.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: September 14, 2021
    Assignee: Ionic Materials, Inc.
    Inventors: Michael A. Zimmerman, Alexei B. Gavrilov, G. Stephen Kelsey, Keith Smith
  • Patent number: 11111586
    Abstract: The present invention relates to a one-step process for preparation of “in-situ” or “ex-situ” self-organized and electrically conducting polymer nanocomposites using thermally initiated polymerization of a halogenated 3,4-ethylenedioxythiophene monomer or its derivatives. This approach does not require additional polymerization initiators or catalysts, produce gaseous products that are naturally removed without affecting the polymer matrix, and do not leave by-product contaminants. It is demonstrated that self-polymerization of halogenated 3,4-ethylenedioxythiophene monomer is not affected by the presence of a solid-state phase in the form of nanoparticles and results in formation of 3,4-polyethylenedioxythiophene (PEDOT) nanocomposites.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: September 7, 2021
    Assignee: SOUTH DAKOTA BOARD OF REGENTS
    Inventors: Alevtina Smirnova, Michael McGraw, Praveen Kolla
  • Patent number: 11094961
    Abstract: An electrode for a rechargeable battery, includes: a primer coating layer including PVdF as a first binder and a conductive material formed on a current collector; and an electrode composite layer including a second binder and an electrode active material formed on the primer coating layer, wherein crystallinity of the first binder is 58 or greater.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: August 17, 2021
    Inventors: Junsoo Park, Su Hyun Kim, Taek Soo Lee, Song Taek Oh
  • Patent number: 11095008
    Abstract: This application relates to a positive electrode plate and an electrochemical device. The positive electrode plate includes a current collector, a safety coating, a difficultly soluble layer and a positive active material layer, wherein the safety coating, the difficultly soluble layer and the positive active material layer are successively disposed on the current collector; wherein the safety coating includes a polymer matrix, a conductive material and an inorganic filler; wherein the difficultly soluble layer includes a binder and a conductive agent, and wherein the binder of the difficultly soluble layer has a solubility in an oil solvent smaller than the solubility of the polymer matrix of the safety coating in such oil solvent.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: August 17, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Xing Li, Zhenhua Li, Haizu Jin
  • Patent number: 11088419
    Abstract: The present invention pertains to a membrane for an electrochemical device, to a process for manufacturing said membrane and to use of said membrane in a process for manufacturing an electrochemical device.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: August 10, 2021
    Assignees: Commissariat à L'énergie Atomique et aux énergies Alternatives, Solvay SA
    Inventors: Julio A. Abusleme, Marc-David Braida, Christine Hamon, Hélène Rouault, Djamel Mourzagh, Gaëlle Besnard, Daniel Tomasi
  • Patent number: 11081720
    Abstract: Provided are a cathode plate of a lithium ion battery and a preparation method therefor and a lithium ion battery. The cathode plate comprises a cathode current collector and a cathode material located on the cathode current collector. The cathode material comprises a cathode active material, a binder, a conductive agent and an additive, wherein the additive comprises at least one of the compounds shown by structural formula I; and in structural formula I, the monomer of R is R1, R1 is an alkenyl compound or an ether compound containing an alkenyl, and n is a positive integer. The cathode plate contains a compound shown by structural formula I. The compound forms a protective layer on the surface of the particles of the cathode active material and reduces a side reaction between the cathode active material and an electrolyte at a high voltage.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: August 3, 2021
    Assignee: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
    Inventors: Muchong Lin, Qiao Shi, Ruixing Liu
  • Patent number: 11081699
    Abstract: The present invention provides composite particles for an electrochemical device electrode which makes it possible to manufacture an electrochemical device exhibiting excellent high temperature storage characteristics. The composite particles for an electrochemical device electrode of the present invention contain an electrode active material (A), a particulate binder resin (B), a water-soluble polymer (C), and a composite (D) of a water-soluble polymer (d?) and crystalline cellulose (d?).
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: August 3, 2021
    Assignee: ZEON CORPORATION
    Inventor: Azusa Masuda
  • Patent number: 11081731
    Abstract: High-capacity and high-performance rechargeable batteries containing a cathode material layer having an improved surface roughness is provided. A cathode material layer is provided in which at least an upper portion of the cathode material layer is composed of nanoparticles (i.e., particles having a particle size less than 0.1 ?m). In some embodiments, a lower (or base) portion of the cathode material layer is composed of particles whose particle size is greater than the nanoparticles that form the upper portion of the cathode material layer. In other embodiments, the entirety of the cathode material layer is composed of the nanoparticles. In either embodiment, a conformal layer of a dielectric material can be disposed on a topmost surface of the upper portion of the cathode material layer. The presence of the conformal layer of dielectric material can further improve the smoothness of the cathode material layer.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: August 3, 2021
    Assignee: International Business Machines Corporation
    Inventors: Devendra K. Sadana, Yun Seog Lee, Joel P. de Souza
  • Patent number: 11081700
    Abstract: A nonaqueous electrolyte secondary battery according to an embodiment of the present disclosure includes a negative electrode including a negative electrode core and negative electrode mixture layers formed on both surfaces of the negative electrode core. Each of the negative electrode mixture layers contains a cellulose-based binder composed of at least one of carboxymethyl cellulose and a salt thereof. When each of the negative electrode mixture layers is divided in half, at the center in the thickness direction, into a first region near the negative electrode core and a second region far from the negative electrode core, the content of the cellulose-based binder present in the first region is 35% by mass or more and less than 50% by mass of the total mass of the cellulose-based binder contained in the entire of each of the negative electrode mixture layers.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: August 3, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Naoki Uchida, Haruya Nakai, Ayumi Kochi
  • Patent number: 11075348
    Abstract: Disclosed are a thin film transistor includes a gate electrode, an active layer including a semiconductor material and a first elastomer, a gate insulator between the gate electrode and the active layer, and a source electrode and a drain electrode electrically connected to the active layer, wherein each of the semiconductor material and the first elastomer has a hydrogen bondable moiety, and the semiconductor material and the first elastomer are subjected to a dynamic intermolecular bonding by a hydrogen bond and a thin film transistor array and an electronic device including the same.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: July 27, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youngjun Yun, Xuzhou Yan, Jinyoung Oh, Zhenan Bao, Hung-Chin Wu
  • Patent number: 11069887
    Abstract: Provided is a battery including a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a negative electrode active material layer including a negative electrode active material and a binding agent. The negative electrode active material includes a silicon-containing material. The binding agent includes a fluorine-containing resin and a polyacrylic acid metal salt. A total amount of the fluorine-containing resin and the polyacrylic acid metal salt is 10 parts by mass to 30 parts by mass on the basis of 100 parts by mass of the negative electrode active material.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: July 20, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akira Hirama, Yusuke Suzuki, Akira Yamaguchi
  • Patent number: 11050058
    Abstract: Method of making interconnected layered porous carbon sheets with porosity within the carbon sheets and in-between the carbon sheets for use as an electrode. Method of making a metal-nanoparticle carbon composite, wherein metal particles are surrounded by shells made of amorphous carbon. Electrodes containing an amorphous carbon structure comprising a plurality of interconnected layered porous carbon sheets. Electrodes containing graphitic carbon structure with a surface area in the range of 5-200 m2/g. Electrodes containing a metal-nanoparticle carbon composite comprising metal core-carbon shell like architecture and an amorphous structure, wherein metal particles are surrounded by shells made of amorphous carbon.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: June 29, 2021
    Assignee: Purdue Research Foundation
    Inventors: Vilas Ganpat Pol, Vinodkumar Etacheri
  • Patent number: 11047054
    Abstract: An oxygen evolution reaction catalyst is a ternary metal oxide that includes Mn and is represented by MnuSbvOw in the rutile crystal phase and MxMnyOz where M is selected from the group consisting of Ca, Ni, Sr, Zn, Mg, Ni, Ba, Co and where u/(u+v) is greater than 33%.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: June 29, 2021
    Assignee: California Institute of Technology
    Inventors: John M Gregoire, Lan Zhou, Santosh K. Suram, Aniketa A. Shinde, Joel A. Haber, Dan W. Guevarra
  • Patent number: 11050117
    Abstract: Provided is a composition for a non-aqueous secondary battery functional layer that inhibits cissing in thin film application and enables formation of a functional layer that does not excessively increase the amount of metal deposited on an electrode during secondary battery charging. The composition for a functional layer contains organic particles, a binder, a wetting agent, and water. Content of the wetting agent is more than 1 part by mass and not more than 5 parts by mass per 100 parts by mass of the organic particles.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: June 29, 2021
    Assignee: ZEON CORPORATION
    Inventors: Takumi Sugimoto, Takuya Kaneda, Kenji Arai
  • Patent number: 11038167
    Abstract: A cathode active material for a positive electrode for a lithium ion secondary battery, comprising a lithium-containing composite oxide represented by aLi(Li1/3Mn2/3)O2·(1-a)LiMO2 (M: at least one transition metal element selected from Ni, Co and Mn, and 0<a<1), wherein in an X-ray diffraction pattern of the lithium-containing composite oxide, the ratio of the height (H020) of a peak of (020) plane assigned to a crystal structure with space group C2/m to the height (H003) of a peak of (003) plane assigned to a crystal structure with space group R-3m (i.e. H020/H003) is at most 0.038, and the ratio of the height (H110) of a peak of (110) plane assigned to a crystal structure with space group C2/m to the height (H003) of a peak of (003) plane assigned to a crystal structure with space group R-3m (i.e. H110/H003) is at most 0.013.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: June 15, 2021
    Assignee: SUMITOMO CHEMICAL CO., LTD.
    Inventors: Tomohiro Sakai, Tsubasa Takasugi
  • Patent number: 11028209
    Abstract: [Problem] To provide a conductive resin composition for electrodes which is excellent in dispersibility and oxidation resistance. To provide: an electrode composition employing the conductive resin composition for electrodes and having a low viscosity; an electrode employing the electrode composition and having a low electrode plate resistance; and a lithium ion battery having a high energy density, high output characteristics and a high cyclability.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: June 8, 2021
    Assignee: Denka Company Limited
    Inventors: Tatsuya Nagai, Takuya Narutomi, Tetsuya Ito, Hiroshi Yokota