Chemically Specified Inorganic Electrochemically Active Material Containing Patents (Class 429/218.1)
  • Patent number: 10847784
    Abstract: A negative electrode active material for the lithium ion secondary battery contains silicon oxide that is obtained by heat-treating, under an inert gas atmosphere, a hydrogen silsesquioxane polymer (HPSQ) obtained by allowing hydrolysis of a silicon compound represented by formula (1) and then a condensation reaction of the resulting material, contains Si, O and H, and has, in an infrared spectrum, a ratio (I1/I2) in the range of 0.01 to 0.35 with regard to intensity (I1) of peak 1 at 820 to 920 cm?1 due to a Si—H bond to intensity (I2) of peak 2 at 1000 to 1200 cm?1 due to a Si—O—Si bond, and is represented by general formula SiOxHy (1<x<1.8, 0.01<y<0.4): HSi(R)3 (1), in which R is groups selected from hydrogen, alkoxy having 1 to 10 carbons and the like.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: November 24, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Keizo Iwatani, Tetsuro Kizaki, Yoshihito Takano, Masakazu Kondo
  • Patent number: 10833311
    Abstract: An anode structure for rechargeable lithium-ion batteries that have a high-capacity are provided. The anode structure, which is made utilizing an anodic etching process, is of unitary construction and includes a non-porous region and a porous region including a top porous layer (Porous Region 1) having a first thickness and a first porosity, and a bottom porous layer (Porous Region 2) located beneath the top porous layer and forming an interface with the non-porous region. At least an upper portion of the non-porous region and the entirety of the porous region are composed of silicon, and the bottom porous layer has a second thickness that is greater than the first thickness, and a second porosity that is greater than the first porosity.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: November 10, 2020
    Assignee: International Business Machines Corporation
    Inventors: Joel P. de Souza, John Collins, Devendra K. Sadana, John A. Ott, Marinus J. P. Hopstaken, Stephen W. Bedell
  • Patent number: 10818928
    Abstract: There is provided an electrode for a rechargeable lithium battery including a current collector, and an active material layer on the current collector, the active material layer including a plurality of active material patterns having a band shape and a plurality of carbon layers between the neighboring active material patterns, wherein neighboring ones of the carbon layers have a gap of greater than about 1 mm and less than about 10 mm.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: October 27, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Tadayoshi Tanaka
  • Patent number: 10818977
    Abstract: A main object of the present disclosure is to provide a method for producing an all solid state battery capable of satisfying both of improving capacity durability and suppressing the increase of an initial resistance. The above object is achieved by providing a method for producing an all solid state battery, the method comprising: a preparing step of preparing an all solid state battery including a cathode layer, a solid electrolyte layer, and an anode layer, in this order; and an initial charging step of initially charging the all solid state battery, wherein the anode layer includes a metal particle capable of being alloyed with Li, and having two kinds or more of crystal orientation in one particle, as an anode active material, and in the initial charging step, the all solid state battery is charged to a battery voltage of 4.35 V or more and 4.55 V or less.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 27, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mitsutoshi Otaki, Norihiro Ose, Shigenori Hama
  • Patent number: 10811644
    Abstract: Systems and methods which provide nickel-zinc textile batteries formed from highly conductive yarn-based components which are configured to facilitate textile material processing, such as weaving, knitting, etc., are described. Embodiments of a conductive yarn-based nickel-zinc textile battery may be constructed using scalably produced highly conductive yarns, such as stainless steel yarns, coated or covered with zinc (anodes) and nickel (cathode) materials, wherein the foregoing yarn anode and cathode components may be coated with an electrolyte to form yarn-based battery assemblies. A conductive yarn-based nickel-zinc textile battery may be constructed by weaving or knitting such yarn-based battery assemblies into a textile material, such as using industrial weaving or knitting machines, hand weaving or knitting processes, etc.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: October 20, 2020
    Assignee: City University of Hong Kong
    Inventors: Chunyi Zhi, Yan Huang, Zijie Tang
  • Patent number: 10804570
    Abstract: An all solid type three-dimensional (“3D”) battery may include a cathode collector, a cathode structure in contact with the cathode collector, an electrolyte structure in contact with the cathode structure, an anode structure in contact with the electrolyte structure, the anode structure not being in contact with the cathode structure and the cathode collector, and an anode collector in contact with the anode structure, where the electrolyte structure is in contact with the cathode collector around the cathode structure. An entirety of a surface of the cathode structure which is used for a battery operation may be in contact with the cathode collector and the electrolyte structure.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: October 13, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Huisu Jeong, Hwiyeol Park, Kyounghwan Kim, Hojung Yang, Sungjin Lim, Jin S. Heo
  • Patent number: 10797312
    Abstract: The present invention relates to a silicon-based anode active material and a method for manufacturing the same. The silicon-based anode active material according to an embodiment of the present invention comprises: particles comprising silicon and oxygen combined with the silicon, and having a carbon-based conductive film coated on the outermost periphery thereof; and boron doped inside the particles, wherein with respect to the total weight of the particles and the doped boron, the boron is included in the amount of 0.01 weight % to 17 weight %, and the oxygen is included in the amount of 16 weight % to 29 weight %.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: October 6, 2020
    Assignee: Nexeon Ltd.
    Inventors: Young Tai Cho, Yong Gil Choi, Seung Chul Park, Seon Park, Hee Young Seo, Jee Hye Park, Yong Eui Lee, Chul Hwan Kim
  • Patent number: 10797355
    Abstract: A non-aqueous electrolyte secondary battery includes a housing, a stack-type electrode array accommodated in the housing, and an electrolyte solution. The electrolyte solution includes an infiltrated portion infiltrated into the stack-type electrode array and an excess portion other than the infiltrated portion. In a set-up state that the non-aqueous electrolyte secondary battery is arranged such that a direction of stack of the stack-type electrode array is orthogonal to a vertical direction, a lower end of the separator projects below lower ends of the positive electrode and the negative electrode. In the set-up state, within a range of an operating state of charge, a projecting portion of any of the plurality separators is always in contact with the excess portion and the plurality of positive electrodes and the plurality of negative electrodes are not in contact with the excess portion at any time.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: October 6, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroki Iguchi
  • Patent number: 10797341
    Abstract: According to one embodiment, a battery module includes a battery unit. The battery unit includes a nonaqueous lithium ion battery including a nonaqueous electrolyte, and an aqueous lithium ion battery including an electrolytic solution in which an electrolyte is dissolved in an aqueous solvent. In the battery unit, the aqueous lithium ion battery is connected in parallel to the nonaqueous lithium ion battery.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: October 6, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasunobu Yamashita, Shinsuke Matsuno, Norio Takami, Hiroki Inagaki
  • Patent number: 10787752
    Abstract: Disclosed is a copper foil including a copper layer and having a tensile strength of 29 to 65 kgf/mm2, a mean width of roughness profile elements (Rsm) of 18 to 148 ?m and a texture coefficient bias [TCB(220)] of 0.52 or less.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: September 29, 2020
    Assignee: KCF TECHNOLOGIES CO., LTD.
    Inventors: Seung Min Kim, Jeong Gil Lee
  • Patent number: 10790511
    Abstract: The present application provides a lithium cobalt oxide positive electrode material, that is, a doped lithium cobalt oxide material: A general formula of doped lithium cobalt oxide is Li1+zCo1?x?yMaxMbyO2, where 0?x?0.01, 0?y?0.01, and ?0.05?z?0.08; Ma is a doped monovalent element, and is at least one of Al, Ga, Hf, Mg, Sn, Zn, or Zr; and Mb is a doped polyvalent element, and is at least one of Ni, Mn, V, Mo, Nb, Cu, Fe, In, W, or Cr. Through substitutional doping of a monovalent element, mutation of a layered structure caused by lithium deintercalation is minimized. Through interstitial doping of a polyvalent element, oxidation of Co3+ is alleviated and delayed during charging.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: September 29, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yangxing Li, Dan Lei
  • Patent number: 10787368
    Abstract: Provided are processes for the formation of electrochemically active materials such as lithiated transition metal oxides that solve prior issues with throughput and calcination. The processes include forming precursor materials into agglomerates prior to calcination. The use of the agglomerates improves gas flow into and out of the materials thereby improving calcination results, electrochemical properties of the resulting materials, and allows for use of high temperature kilns not previously suitable for such materials thereby lowering production costs.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: September 29, 2020
    Assignee: BASF Corporation
    Inventors: William C. Mays, Diana F. Wong, Xue Liu, Benjamin Reichman, Martin Panchula, Gary Yacobian
  • Patent number: 10790513
    Abstract: The present application provides a lithium ion battery and a negative electrode thereof. The negative electrode comprises: a negative electrode active material layer and an additive comprising a metal sulfide, wherein the additive is distributed in the negative electrode active material layer, distributed on the surface of the negative electrode active material layer, or both in the negative electrode active material layer and on the surface of the negative electrode active material layer. The negative electrode of the present application may effectively improve the performance of the lithium ion battery, and greatly improve the capacity and cycle performance of the lithium ion battery.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: September 29, 2020
    Assignee: Ningde Amperex Technology Limited
    Inventors: Jing Jiang, Qiao Zeng, Kefei Wang
  • Patent number: 10784503
    Abstract: A protected lithium electrode structure for a lithium-air battery includes a negative electrode current collector, a negative electrode active material layer, which is made of a lithium metal, an alloy or a compound mainly containing lithium, which is stacked on the negative electrode current collector, and a separator stacked on the negative electrode active material layer. The negative electrode active material layer is sealed by the separator and the negative electrode current collector. A fine powder capturing layer for fine powder lithium metal produced during charging and discharging is provided between the negative electrode active material layer and the separator.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: September 22, 2020
    Assignee: Suzuki Motor Corporation
    Inventors: Hiroaki Izumi, Masaya Nomura, Hironari Minami
  • Patent number: 10784504
    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: March 4, 2019
    Date of Patent: September 22, 2020
    Assignee: SILA NANOTECHNOLOGIES INC.
    Inventors: Gleb Yushin, Bogdan Zdyrko, Alexander Jacobs, Eugene Berdichevsky
  • Patent number: 10770722
    Abstract: The present invention relates to a method for easily producing nanoparticles by expansion, explosion, vaporization, condensation and cooling of plasma in a liquid by means of heat resistance and, more particularly, to a method for preparing a silicon nanocomposite dispersion having a uniform carbon layer coated on the surface of silicon of which at least one area is connected to a silicon carbide formed by reacting a carbon in liquid (C) during expansion, explosion, vaporization, condensation and cooling, and applied products thereof.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: September 8, 2020
    Inventor: Kab Young Moon
  • Patent number: 10770727
    Abstract: A positive electrode active material for a lithium-sulfur battery, and more particularly, to a positive electrode active material for a lithium-sulfur battery including metal sulfide nanoparticles and a preparation method thereof. The metal sulfide nanoparticles with large specific surface area applied to the positive electrode active material for the lithium-sulfur battery according to the present invention acts as a redox mediator during charging and discharging of the lithium-sulfur battery, thereby reducing the shuttle response by not only inhibiting the formation itself of polysulfides with elution properties, but also, even if polysulfides are eluted, adsorbing them and thus preventing them from diffusing into the electrolyte solution, and thus the capacity and life characteristics of the lithium-sulfur battery can be improved.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: September 8, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Dongwook Lee, Jongwook Jung, Kwonnam Sohn, Doo Kyung Yang, Gyo Hyun Hwang
  • Patent number: 10756342
    Abstract: A lithium ion secondary battery includes: a negative electrode having a carbon-based negative electrode material containing graphite particles and amorphous carbon particles; and a positive electrode including a lithium composite oxide. The lithium composite oxide is represented by a general formula: LixNiyMnzCo(1-y-z)O2, where x is a numeral of 1 or more and 1.2 or less, and y and z are positive numerals satisfying the relation of y+z<1. The lithium composite oxide has a layer crystal structure and has a median particle diameter (D50) of 4.0 ?m or more and less than 6.0 ?m.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: August 25, 2020
    Assignee: ENVISION AESC JAPAN LTD.
    Inventors: Sohei Suga, Koichi Shinohara, Kenji Ohara, Toshihiro Horiuchi, Masanori Aoyagi, Junko Nishiyama
  • Patent number: 10756379
    Abstract: A power storage module includes a cylindrical resin portion that extends in a direction in which a plurality of bipolar electrodes is stacked and that accommodates therein the plurality of the bipolar electrodes. The resin portion includes a first seal portion that has a cylindrical shape and is joined to peripheral edge portions of a plurality of electrode plate, and a second seal portion that has a cylindrical shape and is disposed outside the first seal portion in a direction that crosses the stacking direction of the bipolar electrodes. A plurality of separators is disposed such that outer peripheral ends of the separators are located between an outer peripheral end of the first seal portion and an inner peripheral end of the first seal portion.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: August 25, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Atsushi Minagata, Satoshi Kono, Kojiro Tamaru, Satoshi Hamaoka
  • Patent number: 10749182
    Abstract: Provided are excellent coated lithium-nickel composite oxide particles which are capable of suppressing the occurrence of impurities produced by absorbing water and carbonic acid gas as a result of the high environmental stability thereof, have strong adhesion properties, do not result in easy coating layer detachment, and also exhibit lithium ion conductivity. The surfaces of the lithium-nickel composite oxide particles are coated with a polymer or copolymer comprising one or more types selected from a group consisting of a modified polyolefin resin, a polyester resin, a polyphenol resin, a polyurethane resin, an epoxy resin, a silane-modified polyether resin, a silane-modified polyester resin, a silane-modified polyphenol resin, a silane-modified polyurethane resin, a silane-modified epoxy resin, and a silane-modified polyamide resin.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: August 18, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventor: Yosuke Ota
  • Patent number: 10741845
    Abstract: A battery electrode composition is provided that comprises composite particles. Each composite particle may comprise, for example, active lithium fluoride/metal nanocomposite material optionally embedded into a nanoporous, electrically-conductive skeleton matrix material particle(s), where each of these composite particles is further encased in a Li-ion permeable, chemically and mechanically robust, protective outer shell that is impermeable to electrolyte solvent molecules. The active lithium fluoride/metal nanocomposite material is provided to store and release Li ions during battery operation.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: August 11, 2020
    Assignee: SILA NANOTECHNOLOGIES INC.
    Inventors: Gleb Yushin, Eugene Berdichevsky, Bogdan Zdyrko, Alexander Jacobs, Daniel Gordon, Nicholas Ingle, Laura Gerber
  • Patent number: 10720639
    Abstract: Provided is a positive electrode material for a nonaqueous electrolyte secondary battery that excels in thermal stability. A positive electrode material for a nonaqueous electrolyte secondary battery, which is provided by the present invention, includes positive electrode active material particles that can reversibly store and release a charge carrier, and a metal hydroxide. Each of the positive electrode active material particles has inside thereof a void and the metal hydroxide is disposed inside the void.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: July 21, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tetsuri Nakayama
  • Patent number: 10707536
    Abstract: Solid-state laminate electrode assemblies and various methods for making the solid-state laminate electrode assemblies involve a lithium metal layer reactively bonded to a lithium ion conducting sulfide glass layer. During manufacture, highly reactive surfaces of the lithium metal layer and the lithium ion conducting sulfide glass layer are maintained in its substantially unpassivated state until they have been reactively bonded.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: July 7, 2020
    Assignee: POLYPLUS BATTERY COMPANY
    Inventors: Steven J. Visco, Vitaliy Nimon, Ian Wogan, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Bruce D. Katz
  • Patent number: 10707484
    Abstract: Provided herein are nanostructures for lithium ion battery electrodes and methods of fabrication. In some embodiments, a nanostructure template coated with a silicon coating is provided. The silicon coating may include a non-conformal, more porous layer and a conformal, denser layer on the non-conformal, more porous layer. In some embodiments, two different deposition processes, e.g., a PECVD layer to deposit the non-conformal layer and a thermal CVD process to deposit the conformal layer, are used. Anodes including the nanostructures have longer cycle lifetimes than anodes made using either a PECVD or thermal CVD method alone.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: July 7, 2020
    Assignee: Amprius, Inc.
    Inventors: Weijie Wang, Zuqin Liu, Song Han, Jonathan Bornstein, Constantin Ionel Stefan
  • Patent number: 10693134
    Abstract: Provided is an anode active material for a secondary battery and a method of fabricating the anode active material. A silicon-based active material composite according to an embodiment of the inventive concept includes silicon and silicon oxide obtained by oxidizing at least a part of the silicon, and an amount of oxygen with respect to a total weight of the silicon and the silicon oxide is restricted to 9 wt % to 20 wt %.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: June 23, 2020
    Inventors: Young Tai Cho, Seung Chul Park, Seon Park, Jee Hye Park, Yong Eui Lee, Chul Hwan Kim, Hee Young Seo
  • Patent number: 10683419
    Abstract: To address the need for multi-functional binders specifically tailored for sulfur cathodes ?-stacked perylene bisimide (PBI) molecules are repurposed as redox-active supramolecular binders in sulfur cathodes for Li—S cells. In operando lithiation of PBI binders permanently reduces Li—S cell impedance enabling high-rate cycling, a critical step toward unlocking the full potential of Li—S batteries.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: June 16, 2020
    Assignee: The Regents of the University of California
    Inventors: Brett A. Helms, Peter D. Frischmann, Yoon Hwa, Elton J. Cairns
  • Patent number: 10680235
    Abstract: A method for producing a positive electrode containing a positive electrode active material and/or a negative electrode containing a negative electrode active material. The method includes a process for producing an electrode slurry including: a first process in which a positive or negative electrode active material, a conductive additive, and a nonaqueous solvent are mixed to obtain a slurry; and a second process in which the slurry is diluted or concentrated and then mixed to obtain the electrode slurry. In the first process, the mixing is performed such that the obtained slurry has a water content of 1000 ppm or less and a viscosity of 500 cP or more and 8000 cP or less, and, in the second process, the mixing is performed such that a water content of the obtained electrode slurry is maintained at the water content of the slurry after the first process is completed.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: June 9, 2020
    Assignee: KANEKA CORPORATION
    Inventors: Fujika Ogaki, Masato Kuratsu, Ayumi Takaoka
  • Patent number: 10680280
    Abstract: 3-D magnesium voltaic cells have a magnesium anode coated on multiple opposing surfaces with a continuous protective/electrolyte layer that is ionically conductive and electronically insulating. The resulting protected 3-D magnesium anode is coated on multiple opposing surfaces with a continuous cathode layer that is electronically and ionically conductive, and includes a magnesium storage medium. Suitable magnesium anodes, in particular, magnesium foam anodes, can be made by pulsed galvanostatic deposition of magnesium on a copper substrate. The protective layer can be formed by electropolymerization of a suitable methylacrylate ester. The continuous cathode layer can be a slurry cathode having powders of an electronic conductor and a reversible magnesium storage component suspended in a magnesium electrolyte solution.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 9, 2020
    Assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Fuminori Mizuno, Rana Mohtadi, Oscar Tutusaus, Nikhilendra Singh, Timothy S. Arthur, Ruidong Yang, Kensuke Takechi, Chen Ling, Ruigang Zhang
  • Patent number: 10680277
    Abstract: Rechargeable, high-density electrochemical devices are disclosed. These electrochemical devices may, for example, include high energy densities that store more energy in a given, limited volume than other batteries and still show acceptable power or current rate capability without any liquid or gel-type battery components. Certain embodiments may involve, for example, low volume or mass of all of the battery components other than the cathode, while simultaneously achieving high electrochemically active mass inside the positive cathode.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: June 9, 2020
    Assignee: Sapurast Research LLC
    Inventors: Shawn W. Snyder, Bernd J. Neudecker
  • Patent number: 10673072
    Abstract: The present invention relates to a silicon anode active material capable of high capacity and high output, and a method for fabricating the same. A silicon anode active material according to an embodiment of the present invention includes a silicon core including silicon particles; and a double clamping layer having a silicon carbide layer on the silicon core and a silicon oxide layer between the silicon core and the silicon carbide layer.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: June 2, 2020
    Assignee: Nexeon Ltd.
    Inventors: Young Tai Cho, Yong Gil Choi, Seon Park, Young Jae Lee, Hee Young Seo, Jee Hye Park, Yong Eui Lee, Young Jin Hong
  • Patent number: 10665855
    Abstract: A secondary battery includes a cathode, an anode including an active material, and non-aqueous electrolytic solution. The active material includes a center portion and a covering portion provided on part or all of the center portion. The center portion includes silicon, tin, or both as constituent elements. The covering portion includes a plurality of fibrous carbon materials. Part or all of the fibrous carbon materials extend in a direction along a surface of the center portion and are closely attached to the center portion.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: May 26, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takeshi Morozumi, Keitaro Kitada, Yoshihide Nagata, Takatoshi Munaoka, Kenji Matsubara, Yuko Ohtaniuchi, Aiko Kanazawa, Nobuyuki Nagaoka, Masahiro Kikkawa
  • Patent number: 10658658
    Abstract: The present invention relates to a negative electrode active material including a secondary particle in which primary particles are aggregated, wherein the primary particle includes: a core including one or more of silicon and a silicon compound; and a surface layer which is disposed on a surface of the core and contains carbon, wherein an average particle size D50 of the core is in a range of 0.5 ?m to 20 ?m, a method of preparing the same, an electrode including the same, and a lithium secondary battery including the same.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: May 19, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jung Hyun Choi, Yong Ju Lee, Eun Kyung Kim
  • Patent number: 10651459
    Abstract: Provided are uniquely structured electrochemically active particles characterized by a first electrochemically active material and a second electrochemically active material disposed about the first material whereby at least the second material includes a modifier present as a continuous transition concentration gradient from the first material into the second material whereby the concentration is lower in the first material than the second material. Also provided are processes of producing the particle and electrochemical cells incorporating the particles as a positive electrode material in a cathode.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: May 12, 2020
    Assignee: BASF Corporation
    Inventors: Kwo Young, William C. Mays, Lixin Wang
  • Patent number: 10651465
    Abstract: A negative electrode active material including a silicon-containing alloy having a ternary alloy composition expressed by Si—Sn—Ti and including a structure in which an a-Si phase containing amorphous or low-crystalline silicon formed by dissolving tin in a crystal structure of silicon is dispersed in a parent phase of a silicide phase including TiSi2, wherein when a peak intensity of a Si—O bond peak that is observed at a position where an interatomic distance in a radial wave function observed by XAFS is 0.13 nm is S(1) and a peak intensity of a Si—Si bond peak that is observed at a position where the interatomic distance is 0.2 nm is S(2), a relation of S(2)>S(1) is satisfied is used for an electrical device. When used, the negative electrode active material achieves both cycle durability and charging-discharging efficiency for an electrical device such as a lithium ion secondary battery.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: May 12, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Youichi Yoshioka, Nobutaka Chiba, Manabu Watanabe, Masaya Arai
  • Patent number: 10648092
    Abstract: An electrode includes a base material, and a catalyst layer provided on the base material, the catalyst layer including a plurality of catalyst units having a porous structure. The catalyst layer has a first catalyst layer provided near the base material, the first catalyst layer including a plurality of the catalyst units dispersed at a first dispersion degree. The catalyst layer has a second catalyst layer provided above the first catalyst layer, the second catalyst layer including a plurality of the catalyst units dispersed at a second dispersion degree. The second dispersion degree is different from the first dispersion degree.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: May 12, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Wu Mei, Norihiro Yoshinaga, Atsuko Iida
  • Patent number: 10636582
    Abstract: The disclosure provides a nonaqueous lithium-type power storage element having a positive electrode, a negative electrode, a separator, and a nonaqueous electrolytic solution containing lithium ions.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: April 28, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Yuima Kimura, Kazuteru Umetsu, Hitoshi Morita, Nobuhiro Okada, Yuichiro Hirakawa, Yusuke Yamahata
  • Patent number: 10637062
    Abstract: An electrode for an electrochemical device has a current collector, an electrolyte layer, and an active material layer between the current collector and the electrolyte layer comprising active material. The active material layer has a first sub-layer in contact with the electrolyte layer, the first sub-layer having only an electronically conductive polymer binder as a binder material; a second sub-layer in contact with the current collector, the second sub-layer having only an ionically conductive polymer binder as the binder material; and a mid-layer between the first sub-layer and the second sub-layer.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: April 28, 2020
    Assignee: Nissan North America, Inc.
    Inventor: Rameshwar Yadav
  • Patent number: 10629890
    Abstract: The present invention is a negative electrode material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles composed of a silicon compound (SiOx, where 0.5?x?1.6) containing a lithium compound, the negative electrode active material particles being coated with a coating containing at least two of a substance having two or more hydroxyl groups per molecule, phosphoryl fluoride, lithium carbonate, and a hydrocarbon that exhibits a positive ion spectrum CyH2 (1?y?3 and 2?z?5) when subjected to TOF-SIMS. There can be provided a negative electrode material for a non-aqueous electrolyte secondary battery, a non-aqueous electrolyte secondary battery including a negative electrode using this negative electrode material, and a method of producing negative electrode active material particles that can increase the battery capacity and improve the cycle performance and initial charge and discharge performance.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: April 21, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu Hirose, Hiroki Yoshikawa, Hiromichi Kamo
  • Patent number: 10629895
    Abstract: The invention relates to silicon/graphite/carbon composites (Si/G/C-composites), containing graphite (G) and non-aggregated, nanoscale silicon particles (Si), wherein the silicon particles are embedded in a carbon matrix (C). The invention also relates to a method for producing said type of composite, electrode material for lithium ion batteries containing said type of composite and to a lithium ion battery.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: April 21, 2020
    Assignee: WACKER CHEMIE AG
    Inventors: Dennis Troegel, Peter Gigler, Eckhard Hanelt, Stefan Haufe
  • Patent number: 10615416
    Abstract: A negative electrode material applied to a lithium battery or a sodium battery is provided. The negative electrode material is composed of a first chemical element, a second chemical element and a third chemical element with an atomic ratio of x, 1?x, and 2, wherein 0<x<1, the first chemical element is selected from the group consisting of molybdenum (Mo), chromium (Cr), tungsten (W), manganese (Mn), technetium (Tc) and rhenium (Re), the second chemical element is selected from the group consisting of Mo, Cr and W, the third chemical element is selected from the group consisting of sulfur (S), selenium (Se) and tellurium (Te), and the first chemical element is different from the second chemical element.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 7, 2020
    Assignee: Chung-Yuan Christian University
    Inventors: Chun-Chuen Yang, Wei-Jen Liu, Yung-Hsiang Tung, Irish Valerie Buiser Maggay, Cheng-Wei Kao, Tung-Chi Tsai
  • Patent number: 10608248
    Abstract: The volume density or weight density of lithium ions that can be received and released in and from a positive electrode active material is increased to achieve high capacity and high energy density of a secondary battery. In a lithium manganese composite oxide, each particle includes a first region including a crystal with a layered rock-salt crystal structure and a second region including a crystal with a spinel crystal structure. The second region is in contact with the outside of the first region. The lithium manganese composite oxide has high structural stability and high capacity.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: March 31, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takahiro Kawakami, Tatsuya Ikenuma, Satoshi Seo
  • Patent number: 10601032
    Abstract: Provided is a composite electrode material. The composite electrode material is disposed on a surface of an electrode. The composite electrode material includes a plurality of conductive material layers and a plurality of active material layers. The conductive material layers and the active material layers are alternately stacked along a direction non-parallel to the surface of the electrode, and are arranged disorderly along a direction parallel to the surface of the electrode.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: March 24, 2020
    Assignee: National Chiao Tung University
    Inventors: Tseung-Yuen Tseng, Chih-Chieh Yang
  • Patent number: 10601024
    Abstract: An electrochemically active material includes, prior to incorporation in an electrochemical full cell, reversible lithium corresponding to between 4% and 50% of the reversible capacity of the electrochemically active material. The electrochemically active material has a lithium consumption rate between 0.05% and 0.2%.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: March 24, 2020
    Assignee: Johnson Matthey Public Company Limited
    Inventor: Vincent J. Chevrier
  • Patent number: 10581083
    Abstract: A lithium accumulator includes at least two three-dimensional electrodes separated by a separator and encased together into an accumulator body with an electrolyte that is a non-aqueous solution of a lithium salt in an organic polar solvent. The two electrodes have a minimum thickness of 0.5 mm each. At least one electrode is a homogenous, compressed mixture of an electron conductive component and an active material. The active material is capable of absorbing and extracting lithium in the presence of electrolyte. The porosity of the pressed electrodes is 25 to 90%. The active material has morphology of hollow spheres with a wall thickness of maximum 10 micrometers, or morphology of aggregates or agglomerates of maximum 30 micrometers in size. The separator includes a highly porous electrically insulating ceramic material with open pores and porosity from 30 to 95%.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: March 3, 2020
    Assignee: HE3DA S.R.O.
    Inventors: Jan Prochazka, Jr., Jan Prochazka
  • Patent number: 10581069
    Abstract: The present invention relates to a negative electrode active material having a double coating layer of a first coating layer and a second coating layer, which has an excellent output property, effectively suppresses a side reaction with an electrolyte liquid, particularly a PC-containing electrolyte liquid, and has excellent electric conductivity, a method for manufacturing the same, a negative electrode including the same, and a lithium secondary battery including the negative electrode. The negative electrode active material according to the present invention is capable of effectively preventing a side reaction with an electrolyte liquid, particularly a PC-containing electrolyte liquid, and is capable of improving electric conductivity, and as a result, enhancing a rate determining property by reducing an OCV drop of a lithium secondary battery including the negative electrode active material, and enhancing a high rate property.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: March 3, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Wook Kim, Eun Kyung Kim, Sang Wook Woo
  • Patent number: 10566624
    Abstract: A composition containing a carbon monofluoride admixture is provided. The carbon monofluoride admixture is generally in the form of layer having opposing upper and lower surfaces. Usually, an ion conducting or a solid electrolyte layer is position on one of the upper or lower layers of the monofluoride admixture. In some configurations, the ion conducting or a solid electrolyte layer can be alkaline metal aluminum oxide or alkaline metal aluminum fluoride. The alkaline metal is commonly lithium, and the alkaline metal aluminum oxide or alkaline metal aluminum fluoride is more commonly MzAlXy (M is one of alkali metals, X=O, F), Z commonly can have a value from about 0.5 to about 10 and y can have a value from about 1.75 to about 6.5, more commonly z can have a value from about 1 to about 5 and y can have a value from about 2 to about 4. The carbon monofluoride admixture can include a polymeric binder and one or more of a conductive carbon black and conductive graphite.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: February 18, 2020
    Assignee: ADA TECHNOLOGIES, INC.
    Inventor: Weibing Xing
  • Patent number: 10566630
    Abstract: A method of forming a sulfur-based cathode material includes: 1) providing a sulfur-based nanostructure; 2) coating the nanostructure with an encapsulating material to form a shell surrounding the nanostructure; and 3) removing a portion of the nanostructure through the shell to form a void within the shell, with a remaining portion of the nanostructure disposed within the shell.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: February 18, 2020
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Weiyang Li, Yi Cui, Zhi Wei Seh, Guangyuan Zheng, Yuan Yang
  • Patent number: 10566616
    Abstract: Disclosed is a negative active material having a reduced volume change during charge/discharge. A fine crystalline region exists on a matrix of an alloy, and lithium is easily dispersed due to the fine crystalline region. In the negative active material, a ratio of the fine crystalline region is represented by an amorphization degree, and is optimized in designing a battery through a measurement of an expansion rate after 50 cycles. The negative active material is used for a secondary battery and includes an alloy formed by a chemical formula below: (a ratio of Ti to Fe is 1:1 and a ratio of Si:Ti or Si:Fe has a range of 5:1 to 9:1.) Si—?xTiyFezAlu where x, y, z, and u are at %, x: 1?(y+z+u), y: 0.09 to 0.14, z: 0.09 to 0.14, and u: larger than 0.01 and less than 0.2.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: February 18, 2020
    Assignee: ILJIN ELECTRIC CO., LTD.
    Inventors: Young Pil Choi, Cheol Ho Park, Min Hyun Kim, Myeong Han Kim, Seon Kyong Kim
  • Patent number: 10559812
    Abstract: A negative electrode active material for nonaqueous electrolyte secondary batteries including: a particle of negative electrode active material, wherein the particle of negative electrode active material contains a particle of silicon compound containing a silicon compound (SiOx:0.5?x?1.6), on at least a part of a surface of the silicon compound a carbon coating film being formed, and the negative electrode active material contains 2% by mass or less of particle of silicon dioxide and the negative electrode active material contains a silicon dioxide-carbon composite secondary particle containing a plurality of the particles of silicon dioxide and carbon. As a result, the negative electrode active material for nonaqueous electrolyte secondary batteries capable of increasing battery capacity and improving the cycle characteristics and battery initial efficiency is provided.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: February 11, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takumi Matsuno, Takakazu Hirose, Kohta Takahashi, Masahiro Furuya
  • Patent number: 10553859
    Abstract: An electrode active material for a nonaqueous electrolyte secondary battery includes: a core part including at least one of an inorganic oxide and a carbon-composite inorganic composite oxide; and a shell part for carbon coating on the core part. The electrode active material has a specific surface area of 6.0 m2/g or more. The electrode active material has a moisture content of 400 ppm or less, which is measured by a Karl Fischer method such that the electrode active material is heated in a heat-evaporating manner, and continuously maintained at 250° C. for 40 minutes without exposing to an atmosphere after the electrode active material is exposed to the atmosphere to absorb moisture to be saturated.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: February 4, 2020
    Assignee: DENSO CORPORATION
    Inventors: Shuhei Yoshida, Koji Ohira, Masaki Uchiyama, Daisuke Shibata