Silver Component Is Active Material Patents (Class 429/219)
  • Patent number: 11024835
    Abstract: To provide a positive electrode for a lithium ion battery having high energy density and being capable of rapid discharging. A positive electrode for a lithium ion battery, the positive electrode including a positive electrode current collector, a positive electrode active material layer formed on the surface of the positive electrode current collector, and a non-aqueous liquid electrolyte including an electrolyte containing lithium ions and a non-aqueous solvent, in which the positive electrode active material layer includes a positive electrode active material and voids, the voids are filled with the non-aqueous liquid electrolyte, and a proportion of the battery capacity based on a total amount of lithium ions in the non-aqueous liquid electrolyte existing in the positive electrode active material layer with respect to the battery capacity based on a total amount of the positive electrode active material is 3.5 to 15%.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: June 1, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kazuya Minami, Yusuke Nakashima, Yasuhiko Ohsawa, Yuki Kusachi, Hajime Satou, Hiroshi Akama, Hideaki Horie
  • Patent number: 10985399
    Abstract: A negative electrode for a lithium ion secondary battery includes a current collector and an active material-containing layer disposed on the current collector. The active material-containing layer includes: a first negative electrode active material including a carbon material; a second negative electrode active material including a metal element or a metalloid element as a constituent element, the metal element or the metalloid element being capable of forming an alloy with lithium; and a binder. The first negative electrode active material contains a spherical graphite, and the binder contains an acrylic resin.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: April 20, 2021
    Assignee: TDK CORPORATION
    Inventors: Hiroshi Sasagawa, Yasuyuki Kawanaka, Hideaki Seki
  • Patent number: 10950892
    Abstract: A nonaqueous electrolyte secondary battery (10) includes a porous film (78) (heat resistance layer (HRL)) in, which particles (filler F) of an insulating ceramic are attached through a binder onto a surface of at least one of a negative electrode active material layer (63) and a separator (72, 74). In the nonaqueous electrolyte secondary battery, the insulating ceramic of the porous film (78) contains at least one of Fe and Ni.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: March 16, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Akita, Harunari Shimamura
  • Patent number: 10938026
    Abstract: The present invention provides a silicon nanowire structure embedded in nickel silicide nanowires for lithium-based battery anodes and anodes including the same. In particular, a Si nanowire structure embedded in NiSix nanowires according to the present invention may provide a solution to a problem, such as disconnection of Si nanowires from a current collector shown when the Si nanowires are expanded by alloying with Li or contracted during the use of a battery, and the like, by flexibly embedding the Si nanowires in the NiSix nanowires.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: March 2, 2021
    Assignees: Hyundai Motor Company, Research & Business Foundation Sungkyunkwan University, Kia Motors Corporation
    Inventors: Kyo Min Shin, Sa Heum Kim, Hong Seok Min, Mihai Robert Zamfir, Je Mee Joe, Didier Pribat, Yeo Jin Lee
  • Patent number: 10910641
    Abstract: A method for positive electrode active material for a secondary battery includes preparing a precursor by reacting a nickel raw material, a cobalt raw material and an M1 raw material; forming a first surface-treated layer including an oxide of Formula 2 below, on a surface of a core including a lithium composite metal oxide of Formula 1 below, by mixing the precursor with a lithium raw material and an M3 raw material, firing the resultant mixture; and forming a second surface-treated layer including a lithium compound of Formula 3 below, on the core with the first surface-treated layer formed thereon, LiaNi1?x?yCoxM1yM3zM2wO2??[Formula 1] LimM4O(m+n)/2??[Formula 2] LipM5qAr??[Formula 3] wherein, in Formulae 1 to 3, A, M1 to M5, a, x, y, z, w, m, n, p, and q are the same as those defined in the specification.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: February 2, 2021
    Inventors: Ju Kyung Shin, Wang Mo Jung, Byung Chun Park, Ji Hoon Ryu, Sang Min Park, Sang Wook Lee
  • Patent number: 10910633
    Abstract: A nonaqueous electrolyte secondary battery in which low-crystalline carbon-covered graphite is used as negative electrode active material, wherein a cobalt-containing lithium transitional metal oxide is used for: a first positive electrode active material in which the volume per unit mass of pores having a pore size of 100 nm or less is 8 mm3/g or greater; and a second positive electrode active material in which the volume per unit mass of pores having a pore size of 100 nm or less is 5 mm3/g or less.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: February 2, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Ko, Fumiharu Niina, Katsunori Yanagida, Yasunori Baba, Yuki Morikawa
  • Patent number: 10903530
    Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: January 26, 2021
    Assignee: STOREDOT LTD.
    Inventors: David Jacob, Sergey Remizov, Nitzan Shadmi, Hani Farran, Daniel Aronov, Boris Brudnik
  • Patent number: 10892472
    Abstract: A non-aqueous electrolyte secondary battery which uses a lithium titanium composite oxide as a negative electrode active material is configured to use a first positive electrode active material that is a Co-containing lithium transition metal oxide and has a volume per mass of 8 mm3/g or more with respect to pores having a pore diameter of 100 nm or less and a second positive electrode active material that has a volume per mass of 5 mm3/g or less with respect to pores having a pore diameter of 100 nm or less.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: January 12, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yuki Morikawa, Yasunori Baba, Takashi Ko, Fumiharu Niina, Katsunori Yanagida
  • Patent number: 10868299
    Abstract: The present invention relates to a non-aqueous electrolyte secondary cell comprising: a positive electrode having a positive electrode mixture layer that contains a first positive-electrode active material and a second positive-electrode active material; a negative electrode containing a lithium-titanium composite oxide as a negative-electrode active material; and a non-aqueous electrolyte. The volume per mass of pores in the first positive-electrode active material having a pore diameter of 100 nm or less is four or more times the volume per mass of pores in the second positive-electrode active material having a pore diameter of 100 nm or less. The content of the first positive-electrode active material is 30 mass % or less with respect to the total amount of the first positive-electrode active material and the second positive-electrode active material.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: December 15, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasunori Baba, Takashi Ko, Fumiharu Niina, Katsunori Yanagida
  • Patent number: 10862111
    Abstract: A composite including: at least one selected from a silicon oxide of the formula SiO2 and a silicon oxide of the formula SiOx wherein 0<x<2; and graphene, wherein the silicon oxide is disposed in a graphene matrix.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: December 8, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Inhyuk Son, Jonghwan Park, Jaejun Chang, Junhwan Ku, Xiangshu Li, Jaeman Choi
  • Patent number: 10847791
    Abstract: A power storage device with high capacity is provided. Alternatively, a power storage device with excellent cycle characteristics is provided. Alternatively, a power storage device with high charge and discharge efficiency is provided. Alternatively, a power storage device with a long lifetime is provided. A negative electrode active material includes a first region and a second region. The first region includes at least one element selected from Si, Mg, Ca, Ga, Al, Ge, Sn, Pb, Sb, Bi, Ag, Zn, Cd, As, Hg, and In. The second region includes oxygen and the same element as the one included in the first region. The crystallite size of the element included in the first region is larger than or equal to 1 nm and smaller than or equal to 10 nm.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: November 24, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Nobuhiro Inoue, Kiyofumi Ogino
  • Patent number: 10818576
    Abstract: Methods for forming bonded assemblies using metal inverse opal and cap structures are disclosed. In one embodiment, a method for forming a bonded assembly includes positioning a substrate against a polymer support that is porous, depositing a metal onto and within the polymer support, disposing a cap layer to the polymer support opposite of the substrate to form a bottom electrode, and removing the polymer support from between the substrate and the cap layer to form a metal inverse opal structure disposed therebetween.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: October 27, 2020
    Assignees: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Shailesh N. Joshi, Naoya Take, Paul Braun, Julia Kohanek, Gaurav Singhal
  • Patent number: 10811681
    Abstract: A negative electrode active material contains particles of negative electrode active material, wherein the particles of negative electrode active material contain a silicon compound represented by SiOx (0.5?x?1.6), and when the particles of negative electrode active material are measured by an atom probe method, and an Si 75% equivalent concentration surface obtained by the atom probe method is defined to be a boundary surface of a silicon grain, an average diameter of the silicon grains at a center portion of the particle in the particles of negative electrode active material is in the range of 0.25 nm to 5 nm. According to this constitution, when it is used as the negative electrode active material of a secondary battery, a negative electrode active material is capable of increasing battery capacity and improving cycle characteristics.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: October 20, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu Hirose, Hiromichi Kamo, Hiroki Yoshikawa
  • Patent number: 10804535
    Abstract: An article having a continuous network of zinc and a continuous network of void space interpenetrating the zinc network. The zinc network is a fused, monolithic structure. A method of: providing an emulsion having a zinc powder and a liquid phase; drying the emulsion to form a sponge; annealing and/or sintering the sponge to form an annealed and/or sintered sponge; heating the annealed and/or sintered sponge in an oxidizing atmosphere to form an oxidized sponge having zinc oxide on the surface of the oxidized sponge; and electrochemically reducing the zinc oxide to form a zinc metal sponge.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: October 13, 2020
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Joseph F. Parker, Jeffrey W. Long, Debra R. Rolison
  • Patent number: 10763500
    Abstract: An article having a continuous network of zinc and a continuous network of void space interpenetrating the zinc network. The zinc network is a fused, monolithic structure. A method of: providing an emulsion having a zinc powder and a liquid phase; drying the emulsion to form a sponge; annealing and/or sintering the sponge to form an annealed and/or sintered sponge; heating the annealed and/or sintered sponge in an oxidizing atmosphere to form an oxidized sponge having zinc oxide on the surface of the oxidized sponge; and electrochemically reducing the zinc oxide to form a zinc metal sponge.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: September 1, 2020
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Joseph F. Parker, Jeffrey W. Long, Debra R. Rolison
  • Patent number: 10714747
    Abstract: A high energy density lithium-ion rechargeable battery cell is provided which includes an anode material containing a carbon-nanotube (CNT)-Si composite and a cathode material containing a core-shell gradient and/or concentration gradient nickel-based lithium metal oxide.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 14, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Sung-Jin Kim, Georg Steinhoff, Peter Lamp, Yang-Kook Sun
  • Patent number: 10700355
    Abstract: Disclosed is a lithium complex oxide and method of manufacturing the same, more particularly, a lithium complex oxide effective in improving the characteristics of capacity, resistance, and lifetime with reduced residual lithium and with different interplanar distances of crystalline structure between a primary particle locating in a internal part of secondary particle and a primary particle locating on the surface part of the secondary particle, and a method of preparing the same.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: June 30, 2020
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jong Seung Shin, Dong Hee Kim, Suk Yong Jeon, Hyun Jong Yu, Kyoung Jun Lee, Young Nam Park
  • Patent number: 10700341
    Abstract: A negative electrode for a rechargeable lithium battery including a current collector and a negative active material layer positioned on the current collector, wherein the negative active material layer includes a first active material including a carbon-based material, a composite material including a second active material including a silicon-based material or a tin-based material, the second active material being coated with a combined binder and a fiber-shaped conductive material on the surface thereof, and a binder, a rechargeable lithium battery including the same and a method of preparing the same.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: June 30, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Hironobu Fukahori
  • Patent number: 10673060
    Abstract: Provided is a roll-press machine provided with a wrinkle occurrence prevention device for suppressing occurrence of wrinkles caused by a roll-pressing operation on a coated part and an uncoated part of an electrode plate, and a roll-pressing method. A work roll having a diameter smaller than that of the pressing roll is pressed to allow the uncoated part to be rolled between the pressing roll and the work roll, and the work roll is held by two backup rolls arranged in a V-shape formation so that the work roll can press the uncoated part with a pressing force uniform width-wise.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: June 2, 2020
    Assignee: Ono Roll Co., Ltd.
    Inventors: Katsuhiko Yanai, Shigeru Mori
  • Patent number: 10658675
    Abstract: An electrode includes a current collector having metallic struts formed by freeze tape casting along a cast direction, and an electrochemically active material occupying portions of the void spaces. The struts define a percolated conductive network and void spaces through the percolated conductive network. The struts are directionally aligned and the void spaces are directionally ordered perpendicular to the cast direction.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: May 19, 2020
    Assignee: ZAF ENERGY SYSTEMS, INCORPORATED
    Inventors: Adam Weisenstein, Allen Charkey, Melissa D. McIntyre
  • Patent number: 10644324
    Abstract: An electrode material includes a fine-array porous material. The fine-array porous material includes a plurality of pores having a substantially uniform size of <1000 ?m, with a variation of <20%, and comprises a metal such as Ni, Al, Ti, Sn and Mn. The metal fine-array porous electrode material can be surface-treated to form a metal oxide on the surface of the porous electrode material, or be coated with a metal oxide including RuO2, TaO. An electrical energy storage apparatus, such as a supercapacitor or a lithium battery, containing the fine-array porous electrode material can have significantly improved performances as compared with conventional materials.
    Type: Grant
    Filed: May 28, 2017
    Date of Patent: May 5, 2020
    Inventors: Kechuang Lin, Yi-Jui Huang
  • Patent number: 10608254
    Abstract: Composites of silicon and various porous scaffold materials, such as carbon material comprising micro-, meso- and/or macropores, and methods for manufacturing the same are provided. The compositions find utility in various applications, including electrical energy storage electrodes and devices comprising the same.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: March 31, 2020
    Assignee: GROUP14 TECHNOLOGIES, INC.
    Inventors: Avery J. Sakshaug, Henry R. Costantino, Aaron M. Feaver, Leah A. Thompkins, Katharine Geramita, Benjamin E. Kron, Sarah Fredrick, Farshid Afkhami, Adam Strong
  • Patent number: 10581071
    Abstract: The present invention provides a precursor for the production of positive electrode active material for a secondary battery comprising: a core containing transition metal hydroxides comprising nickel (Ni) and manganese (Mn), or transition metal hydroxides comprising nickel (Ni), manganese (Mn) and cobalt (Co); and a shell containing transition metal hydroxides comprising cobalt (Co), and a positive electrode active material produced using the same.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: March 3, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Min Kyu You, Ho Suk Shin, Hong Kyu Park
  • Patent number: 10535869
    Abstract: Provided are a positive active material, a lithium battery including the positive active material, and a method of manufacturing the positive active material. The positive active material includes a lithium molybdate composite having a core-shell structure. The lithium molybdate composite acts as a sacrificial positive electrode in a positive electrode of a battery. The positive active material is able to increase charge capacity of a lithium battery, and accordingly is able to improve lifetime properties of a lithium battery.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: January 14, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-Ki Kim, Young-Hun Lee, Ick-Kyu Choi, Yong-Chul Park, Soon-Rewl Lee
  • Patent number: 10483540
    Abstract: Disclosed is a lithium complex oxide and method of manufacturing the same, more particularly, a lithium complex oxide effective in improving the characteristics of capacity, resistance, and lifetime with reduced residual lithium and with different interplanar distances of crystalline structure between a primary particle locating in a internal part of secondary particle and a primary particle locating on the surface part of the secondary particle, and a method of preparing the same.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: November 19, 2019
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jong Seung Shin, Dong Hee Kim, Suk Yong Jeon, Hyun Jong Yu, Kyoung Jun Lee, Young Nam Park
  • Patent number: 10396394
    Abstract: A method for producing a sulfide all-solid-state battery with a high capacity retention rate, and a sulfide all-solid-state battery with a high capacity retention rate. The method for producing a sulfide all-solid-state battery may comprise forming a sulfide all-solid-state battery, initially charging the sulfide all-solid-state battery after the forming of the sulfide all-solid-state battery, and exposing the sulfide all-solid-state battery to an oxygen-containing gas atmosphere at at least any one of a time of the initially charging of the sulfide all-solid-state battery and a time after the initially charging of the sulfide all-solid-state battery.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: August 27, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hajime Hasegawa, Norihiro Ose, Kengo Haga, Mitsutoshi Otaki, Keisuke Omori, Takeshi Tojigamori
  • Patent number: 10340510
    Abstract: A positive electrode active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery, the positive electrode active material including nickel, cobalt, and manganese, wherein the positive electrode active material has a core part and a surface part, an amount of manganese in the core part and the surface part is higher than 25 mol %, and amounts of nickel and cobalt in the positive electrode active material vary such that a concentration gradient of the nickel and the cobalt in a direction from the core part to the surface part is present in the positive electrode active material.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: July 2, 2019
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: JinHwa Kim, JoongHo Moon, JeonJin Choi, YuMi Song, MinHan Kim, DoHyung Park, SeonYoung Kwon
  • Patent number: 10326129
    Abstract: The active material for a nonaqueous electrolyte secondary battery of the present embodiment includes a core particle and a carbon layer. The core particle is formed of silicon particles having a twinned crystal in part of a surface. The carbon layer coats the core particle.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: June 18, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Fukasawa, Kenji Essaki, Tomokazu Morita, Takashi Kuboki, Yasuhiro Goto
  • Patent number: 10270096
    Abstract: A positive active material for a rechargeable lithium battery includes a LiCoO2 particle. An interior of the particle has a layered structure and a surface of the particle has a spinel structure.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: April 23, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-Hyun Shim, Ki-Soo Lee, Jae-Han Lee, Se-Hee Lee, Hyeon-Ah Ju, Eun-Cheol Lee, Joo-Han Song, Yun-Hee Lee
  • Patent number: 10263253
    Abstract: Electrochemical cell comprising an anode and a cathode is provided. The anode and the cathode independently comprises or consists essentially of a vanadium oxide compound having general formula MnV6O16, wherein M is selected from the group consisting of ammonium, alkali-metal, and alkaline-earth metal; and n is 1 or 2. Method of preparing a vanadium oxide compound having general formula MnV6O16 is also provided.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: April 16, 2019
    Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Vivek Nair, Madhavi Srinivasan, Yan Ling Cheah
  • Patent number: 10163576
    Abstract: The instant disclosure relates to a manufacturing method of capacitor cathode foil structure, comprising the following steps. The first step is providing a base foil, subsequently inserting the foil into a reactor. The next step is executing a heating process for heat the base foil to a temperature region of 400° C. to 1000° C. The next step is directing a carbon containing precursor gas into the reactor. The last step is executing a cooling process for cooling the base foil to a temperature below 100° C. to deposit a graphene-based layer on one surface of the base foil, wherein the graphene-based layer is consisted of a plurality of graphene-based thin films in stacked arrangement.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: December 25, 2018
    Assignee: Apaq Technology Co., Ltd.
    Inventors: Ching-Feng Lin, Ming-Tsung Chen
  • Patent number: 10038191
    Abstract: The present invention provides an anode material for a lithium-ion battery, the anode material being excellent in the low resistance and the rate characteristics, and meeting the fast charge/discharge characteristics and the relaxation of the characteristics deterioration due to the volume expansion simultaneously in high levels. In the present invention, there is produced a carbonous anode material comprising a composite (7) of a low-crystalline carbon (6), a fibrous carbon (2) having a smaller diameter than the particle diameter of the low-crystalline carbon (6), and a carbon nanohorn (3), by dispersing a low-crystalline carbon precursor (1), the fibrous carbon (2), and the carbon nanohorn (3) in a disperse medium (4) to form a carrier (5) having the carbon nanohorn (3) supported on the precursor (1) and the fibrous carbon (2), separating the carrier (5) from the disperse medium (4), and thereafter subjecting the resultant to a heat treatment to convert the precursor (1) to the low-crystalline carbon (6).
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: July 31, 2018
    Assignee: NEC CORPORATION
    Inventor: Ryota Yuge
  • Patent number: 10026959
    Abstract: A power storage device with high capacity is provided. Alternatively, a power storage device with excellent cycle characteristics is provided. Alternatively, a power storage device with high charge and discharge efficiency is provided. Alternatively, a power storage device with a long lifetime is provided. A negative electrode active material includes a first region and a second region. The first region includes at least one element selected from Si, Mg, Ca, Ga, Al, Ge, Sn, Pb, Sb, Bi, Ag, Zn, Cd, As, Hg, and In. The second region includes oxygen and the same element as the one included in the first region. The crystallite size of the element included in the first region is larger than or equal to 1 nm and smaller than or equal to 10 nm.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: July 17, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Nobuhiro Inoue, Kiyofumi Ogino
  • Patent number: 10020497
    Abstract: A lithium secondary battery comprising a positive electrode, a negative electrode, a separation film, and an electrolyte, wherein the negative electrode includes a silicon-carbon composite as a negative active material, and wherein the electrolyte includes an additive selected from the group consisting of FEC, VEC, VC, EC, DFEC, t-butylbenzene, and t-pentylbenzene.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: July 10, 2018
    Inventors: Yong-Mook Kang, Young-Min Lee, Kyeong-Se Song
  • Patent number: 9985294
    Abstract: A battery includes an anode, an electrolyte, and a cathode. The cathode includes a current collector having a first surface and a second surface opposite the first surface, a first material layer comprising sub-fluorinated carbon fluoride (CFx), and a second material layer comprising silver vanadium oxide (SVO) bonded to the first material layer. The first material layer comprising CFx may also be bonded to a third material layer comprising SVO, and the third material layer is bonded to the first surface of the current collector.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: May 29, 2018
    Assignee: Pacesetter, Inc.
    Inventor: Xiaofei Jiang
  • Patent number: 9981859
    Abstract: The present invention provides a positive electrode composition for a non-aqueous electrolyte secondary battery, wherein the composition includes a lithium-transition metal composite oxide represented by the following compositional formula: LiaNi1-x-yCoxM1yM2zMo?Nb?O2 wherein 1.00?a?1.50, 0.00?x?0.50, 0.00?y?0.50, 0.000?z?0.020, 0.002???0.020, 0.002???0.020, and 0.00?x+y?0.70, M1 represents at least one element selected from the group consisting of Mn and Al, and M2 represents at least one element selected from the group consisting of Zr, Ti, Mg, Ta, and V, and a boron compound including at least boron and oxygen.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: May 29, 2018
    Assignee: NICHIA CORPORATION
    Inventors: Kosuke Shimokita, Makoto Shimahara, Kiyofumi Inouchi
  • Patent number: 9960417
    Abstract: The present disclosure describes, among other things, new layered molybdenum oxides for lithium ion battery cathodes from solid solutions of Li2MoO3 and LiCrO2. These materials display high energy density, good rate capability, great safety against oxygen release at charged state due mostly to their low voltage. Therefore, these materials have properties desirable for lithium ion battery cathodes.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: May 1, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Gerbrand Ceder, Jinhyuk Lee, Sangtae Kim, Xin Li
  • Patent number: 9960425
    Abstract: A positive electrode material includes: a composite oxide of solid solution including Li2SnO3 and Li2Ni?M1?M2?Mn?O4-?. ? satisfies an equation of 0.50???1.35. ? satisfies an equation of 0??<1.0. ? satisfies an equation of 0???0.66. ? and ? satisfies an equation of 0.33??+??1.1. ? satisfies an equation of 0???0.66. ? satisfies an equation of 0???1.00. M1 represents at least one selected from Sn, Sb0.5Al0.5. M2 represents Sb.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: May 1, 2018
    Assignee: DENSO CORPORATION
    Inventors: Yoshinori Satou, Shigeki Komine, Nobuo Yamamoto, Yuta Shimonishi, Yuki Tachibana
  • Patent number: 9944537
    Abstract: The present invention provides a positive electrode composition for a non-aqueous electrolyte secondary battery, wherein the composition includes a lithium-transition metal composite oxide represented by the following compositional formula: LiaNi1-x-yCoxM1yM2zMo?Nb?O2 wherein 1.00?a?1.50, 0.00?x?0.50, 0.00?y?0.50, 0.000?z?0.020, 0.002???0.020, 0.002???0.020, and 0.00?x+y?0.70, M1 represents at least one element selected from the group consisting of Mn and Al, and M2 represents at least one element selected from the group consisting of Zr, Ti, Mg, Ta, and V, and a boron compound including at least boron and oxygen.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: April 17, 2018
    Assignee: NICHIA CORPORATION
    Inventors: Kosuke Shimokita, Makoto Shimahara, Kiyofumi Inouchi
  • Patent number: 9917298
    Abstract: A composite includes a carbonaceous material; a plurality of silicon structures disposed on the carbonaceous material; and a graphene layer, which comprises graphene and is disposed on the plurality of silicon structures, wherein a silicon structure of the plurality of silicon structures includes silicon and a silicon oxide of the formula SiOx which is disposed on a surface of the silicon, wherein 0<x<2. Also a method of preparing the composite, an electrode including the composite, and a lithium battery including the electrode.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: March 13, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Inhyuk Son, Jonghwan Park, Seongyong Park, Jaeman Choi
  • Patent number: 9865793
    Abstract: A method for forming an energy generating device which includes two layers of dissimilar materials in terms of electron density and configuration in contact with each other, sandwiched between an anode and a cathode. The two layers of dissimilar materials are each formed as a paste or ink and include an ionic material absorbed or incorporated into the two layers of dissimilar material. The ionic material facilitates the flow of electrons within the device, thereby creating a cell with an electric potential across an interface of the two layers of dissimilar material.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: January 9, 2018
    Assignee: Conceptual Werks LLC
    Inventor: Thomas McPhail Beretich
  • Patent number: 9799919
    Abstract: A method for production of a magnesium battery with low impedance is provided. A cell is constructed comprising an uncoated current collector anode, an electrolyte system comprising a non-aqueous solvent and a magnesium salt soluble in the non-aqueous solvent, and a cathode. The cell is charged to electrodeposit magnesium metal unto the uncoated current collector to obtain an anode having magnesium metal as the active material. Also provided are rechargeable magnesium batteries obtained by the method.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: October 24, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Fuminori Mizuno, Rana Mohtadi, Oscar Tutusaus, Kensuke Takechi
  • Patent number: 9799887
    Abstract: Cathodes containing active materials and carbon nanotubes are described. The use of carbon nanotubes in cathode materials can provide a battery having increased longevity and volumetric capacity over batteries that contain a cathode that uses conventional conductive additives such as carbon black or graphite.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: October 24, 2017
    Assignee: Medtronic, Inc.
    Inventors: Kaimin Chen, Gaurav Jain
  • Patent number: 9780367
    Abstract: Disclosed herein is a non-carbon-based anode active material for lithium secondary batteries, including: a core containing silicon (Si); and silicon nanoparticles formed on the surface of the core. The non-carbon-based anode active material is advantageous in that the increase in the volume expansion during charging-discharging can be prevented by the application of silicon nanoparticles, and in that SiOx(x<1.0) can be easily prepared.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: October 3, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Je-Young Kim, Hyun-Chul Kim, Yong-Ju Lee
  • Patent number: 9780167
    Abstract: Provided is a method for manufacturing a silicon nanowire array comprising the steps of: positioning plastic particles separated apart from one another in a uniform random pattern on a silicon substrate; forming a catalyst layer between the plastic particles; removing the plastic particles; vertically etching portions of the silicon substrate that contact the catalyst layer; and removing the catalyst layer. The present invention provides a simple and cost-effective process, enables mass-production through large surface area processing, enables the manufacture of nanowire even at a site having limited resources, and enables the structures of nanowire to be individually controlled.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: October 3, 2017
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Myung Han Yoon, Se Yeong Lee
  • Patent number: 9748562
    Abstract: A negative active material including graphite; silicon nanowires; and silicon nanoparticles, wherein a silicon nanowire of the silicon nanowires and a silicon nanoparticle of the silicon nanoparticles are each disposed on a particle of the graphite to form a composite with the graphite.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: August 29, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-jin Ham, Jeong-kuk Shon, Min-sang Song, Seung-sik Hwang, Jun-hwan Ku, Jae-jun Chang, Sang-min Ji, Jae-man Choi
  • Patent number: 9735447
    Abstract: A silicone-containing compound is an additive for a lithium secondary battery electrolyte for improving high-temperature lifetime characteristics and/or high-temperature stability of a lithium secondary battery. An electrolyte for a lithium secondary battery includes the silicon-containing compound. A lithium secondary battery includes the electrolyte. A method of preparing the silicon-containing compound is also provided.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: August 15, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Vladimir Egorov, Woo-Cheol Shin, Soo-Jin Kim, Myung-Heui Woo, Hye-Jin Park, Si-Young Cha
  • Patent number: 9735422
    Abstract: Provided is a negative-electrode active material, which is capable of constituting a lithium ion secondary cell exhibiting excellent cell characteristics. The negative-electrode active material for a lithium ion secondary cell of the invention includes a mixed material of silicon oxide particles composed of silicon oxide and rod-shaped iron oxide particles composed of iron oxide. It is preferable to use iron oxide particles having a plurality of pores in a surface, and an electrode reaction is effectively carried out.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: August 15, 2017
    Assignee: NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Keiichi Hayashi, Manabu Miyoshi, Takayuki Hirose, Hitotoshi Murase, Hideyuki Morimoto, Shin-ichi Tobishima
  • Patent number: 9722247
    Abstract: A positive electrode comprising ?-VOPO4 and/or Nax(?-VOPO4) wherein x is a value from 0.1 to 1.0 as an active ingredient, wherein the electrode is capable of insertion and release of sodium ions and a reversible sodium battery containing the positive electrode are provided.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: August 1, 2017
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., The Research Foundation for The State University of New York
    Inventors: Ruigang Zhang, Fuminori Mizuno, Chen Ling, M. Stanley Whittingham, Ruibo Zhang, Zehua Chen
  • Patent number: 9673449
    Abstract: Silicon slurry for anode active materials of secondary batteries is provided. The silicon slurry includes silicon particles and a dispersion medium. The silicon slurry satisfies dispersion conditions of 1?D90/D50?2.5 and 2 nm<D50<180 nm, where D90 denotes an average diameter of the silicon particles at 90% of cumulative particle size distribution, and D50 denotes an average diameter of the silicon particles at 50% of cumulative particle size distribution.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: June 6, 2017
    Assignee: OCI COMPANY LTD.
    Inventors: Yo-Seop Kim, Eun-Hye Jeong, Sung-Ho Jung, Hyung-Rak Kim