Silver Component Is Active Material Patents (Class 429/219)
  • 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: 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: 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: 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: 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: 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: 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
  • Patent number: 9647254
    Abstract: In a one-step method for preparing a coated separator, a suspension of i) a ceramic, ii) a cermet, iii) a ceramic with an electrolyte, or iv) a cermet with an electrolyte in a carrier liquid is plasma sprayed without a carrier gas. The carrier liquid is water, alcohol, ethylene glycol, or mixtures thereof.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: May 9, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Gayatri Vyas Dadheech, Mei Cai
  • Patent number: 9640803
    Abstract: A solid state energy generator and storage device, comprising two layers, in contact with each other, of dissimilar materials in terms of electron density and configuration, sandwiched between an anode and a cathode. One of the layers is a stabilized mixture of carbon and an ionic material (carbon matrix) and the other layer is a stabilized manganese oxide mixed with an ionic material (oxide matrix). The built-in potential of the device is determined mathematically by integrating the electrostatic forces across the barrier and will rise or fall in direct proportion to the device temperature (in Kelvin). In addition the device can be charged and thus function as a charge storage device, with the rated voltage varying according to the temperature of the device. When a load is attached across the terminals of the device a current flows.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 2, 2017
    Assignee: Conceptual Works LLC
    Inventor: Thomas Beretich
  • Patent number: 9520241
    Abstract: An method of producing an electronic device, including identifying a graphene sheet, functionalizing the graphene sheet to yield a functionalized sheet, attaching respective vanadium oxide molecules to respective functional groups to define an impregnated graphene sheet, removing organic solvents from the impregnated graphene sheet to define a composite sheet, and positioning the composite sheet onto a metallic substrate to yield a capacitor.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: December 13, 2016
    Assignee: Indiana University Research and Technology Corporation
    Inventor: Jian Xie
  • Patent number: 9478797
    Abstract: A system and method of forming a thin film battery includes a substrate, a first current collector formed on the substrate, a cathode layer formed on a portion of the first current collector, a solid layer of electrolyte material formed on the cathode layer, a silicon-metal thin film anode layer formed on the solid layer of electrolyte material and a second current collector electrically coupled to the silicon-metal thin film anode layer. A method and a system for forming the thin film battery are also disclosed.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: October 25, 2016
    Assignee: APPLEJACK 199 L.P.
    Inventors: Wenming Li, Byunghoon Yoon, Ann Koo
  • Patent number: 9466835
    Abstract: A cathode active material is provided which has a charge and discharge capacity larger than that of FeF3 when used in a non-aqueous electrolyte secondary battery. The cathode active material for use in secondary batteries with a non-aqueous electrolyte includes an amorphous metal fluoride represented by a general formula Fe(1-x-ny)NaxMyF(3-2(x+ny)), wherein M is a metal element selected from a group consisting of Co, Ni, Cu, Mg, Al, Zn, and Sn, n represents an oxidation number of the metal element M, 0<x?0.4, and 0?y?0.1.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: October 11, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shintaro Aoyagi, Yuji Isogai, Akihiro Yoshizawa
  • Patent number: 9466838
    Abstract: A lithium/graphite fluoride primary battery prepared by a process which includes providing a graphite fluoride powder, mechanically milling the graphite fluoride powder so as to obtain an active material, providing a mixture comprising the active material and an electrically conductive carbon so as to form a part of a positive electrode, providing a body comprising lithium as a part of a negative electrode, and forming an electrochemical cell with the positive electrode and the negative electrode.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: October 11, 2016
    Assignee: KARLSRUHER INSTITUT FUER TECHNOLOGIE
    Inventors: Munnangi Anji Reddy, Ben Breitung, Maximilian Fichtner, Horst Hahn
  • Patent number: 9461306
    Abstract: A magnesium electrochemical cell having a positive electrode containing as an active ingredient, an amorphous material of formula [V2O5]c[MgXy]d[MaOb]e is provided. In the formula M is an element selected from the group consisting of P, B, Si, Ge and Mo, and X is O, F, Cl, Br or I.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: October 4, 2016
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Fuminori Mizuno, Ruigang Zhang, Jason Germain, Keiko Kato, Timothy Sean Arthur
  • Patent number: 9318737
    Abstract: There is provided a negative electrode material for non-aqueous electrolyte secondary batteries, the negative electrode material being a silicon oxide represented by the composition formula, SiOx, containing silicon and silicon oxide, in which x satisfies the relation of 0.1?x?0.8; the silicon oxide contains crystalline silicon; among the particles of crystalline silicon having a diameter of 1 nm or greater, the proportion by number of particles having a diameter of 100 nm or less is 90% or greater; and the BET specific surface area of the silicon oxide is larger than 100 m2/g.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: April 19, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Essaki, Takayuki Fukasawa, Tomokazu Morita, Noikazu Osada, Yasuyuki Hotta, Takashi Kuboki, Toshiro Hiraoka
  • Patent number: 9190696
    Abstract: A rechargeable lithium metal or lithium-ion cell comprising a cathode having a cathode active material and/or a conductive supporting structure, an anode having an anode active material and/or a conductive supporting nano-structure, a porous separator electronically separating the anode and the cathode, a highly concentrated electrolyte in contact with the cathode active material and the anode active material, wherein the electrolyte contains a lithium salt dissolved in an ionic liquid solvent with a concentration greater than 3 M. The cell exhibits an exceptionally high specific energy, a relatively high power density, a long cycle life, and high safety with no flammability.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: November 17, 2015
    Assignee: Nanotek Instruments, Inc.
    Inventors: Hui He, Bor Z Jang, Yanbo Wang, Aruna Zhamu
  • Patent number: 9190659
    Abstract: A secondary battery that can avoid reduction in battery capacity over the lapse of charge-discharge cycles and can exhibit high performance is provided. The secondary battery includes a first electrode layer, a second electrode layer, and an electrolyte layer provided between the first and second electrode layers, the electrolyte layer including electrolyte particles, wherein at least one of the first and second electrode layers includes a base member having a major surface on which a plurality of concave portions are formed and an electrode material filled in at least the concave portions, the major surface facing to the electrolyte layer.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: November 17, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shigeo Kondo, Yasumasa Takeuchi, Yoshiharu Ajiki
  • Patent number: 9123970
    Abstract: A lithium battery binder composition in accordance with some example embodiments of the inventive concept may include a lithium ion polymer, an inorganic particle and an organic solution in which a lithium salt is dissolved. The lithium ion polymer may be a cellulosic polymer having sulfonic acid lithium salt or carboxylic acid lithium salt functional group. The lithium ion polymer may be manufactured by substituting hydroxyl group or carboxylic group of cellulosic polymer. The lithium battery binder composition may be used to at least one of an electrolyte, a cathode layer and an anode layer.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: September 1, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young-Gi Lee, Kwang Man Kim, Kunyoung Kang, Dong Ok Shin
  • Patent number: 9105920
    Abstract: In an aspect, a composite anode active material including: a porous particles, said porous particles including: a plurality of composite nanostructures; and a first carbonaceous material binding the composite nanostructures, wherein the porous particles have pores within the particle, and wherein the composite nanostructures include a crystalline second carbonaceous material substrate including at least one carbon nano-sheet, and a plurality of metal nanowires arranged at intervals on the crystalline second carbonaceous material substrate is disclosed.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: August 11, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chang-Su Shin, Jae-Myung Kim, So-Ra Lee, Yu-Jeong Cho, Su-Kyung Lee, Ui-Song Do, Sang-Eun Park, Ha-Na Yoo
  • Patent number: 9105904
    Abstract: In an aspect, a composite anode active material including particles, wherein the particles include: a first carbonaceous material that is substantially crystalline and includes at least one carbon nano-sheet; a non-carbonaceous material capable of intercalating and deintercalating lithium; and a second carbonaceous material that binds the first carbonaceous material and the non-carbonaceous material, wherein the particles have pores having a size of 50 nm or more is disclosed.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 11, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: So-La Lee, Ui-Song Do, Chang-Su Shin
  • Patent number: 9088049
    Abstract: A lithium air battery cell includes an anode having lithium, a cathode having a Ag2Mn8O16 catalyst, and an electrolyte comprising a lithium salt. A cathode for a lithium air battery cell and a lithium air battery with a cathode including buckypaper and a Ag2Mn8O16 catalyst are also disclosed.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: July 21, 2015
    Assignee: Florida State University Research Foundation, Inc.
    Inventors: Jian-ping Zheng, Guoqing Zhang
  • Publication number: 20150147647
    Abstract: The present invention related to an electrochemical cell comprising an anode of a Group IA metal and a cathode of a composite material prepared from a combination of vanadium oxide and either a copper or a silver oxide and the other of a copper or a silver nitrate. The cathode material of the present invention provides an increased gravimetric energy density over the cathode active materials of the prior art along with an increased pulse voltage delivery capacity. This makes the cathode material of the present invention particularly useful for implantable medical applications.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Hong Gan, Joseph Lehnes, Weibing Xing
  • Patent number: 9039926
    Abstract: A production process for composite oxide expressed by a compositional formula: LiMn1-xAxO2, where “A” is one or more kinds of metallic elements other than Mn; and 0?“x”<1, obtained by preparing a raw-material mixture by mixing a metallic-compound raw material and a molten-salt raw material with each other, the metallic-compound raw material at least including an Mn-containing nitrate that includes one or more kinds of metallic elements in which Mn is essential, the molten-salt raw material including lithium hydroxide and lithium nitrate, and exhibiting a proportion of the lithium nitrate with respect to the lithium hydroxide (Lithium Nitrate/Lithium Hydroxide) that falls in a range of from 1 or more to 3 or less by molar ratio; reacting the raw-material mixture at 500° C. or less by melting it; and recovering the composite oxide being generated from the raw-material mixture that has undergone the reaction.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: May 26, 2015
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Ryota Isomura, Hitotoshi Murase, Naoto Yasuda
  • Publication number: 20150140359
    Abstract: In an aspect, a negative active material, a negative electrode and a lithium battery including the negative active material, and a method of manufacturing the negative active material is provided. The negative active material includes a silicon-based active material substrate; a metal oxide nanoparticle disposed on a surface of the silicon-based active material substrate. An initial irreversible capacity of the lithium battery may be decreased and lifespan characteristics may be improved by using the negative active material.
    Type: Application
    Filed: April 25, 2014
    Publication date: May 21, 2015
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Sang-Eun Park, Young-Ugk Kim, Hyun-Ki Park, Chang-Su Shin, Ui-Song Do, Sung-Su Kim
  • Publication number: 20150132650
    Abstract: A magnesium electrochemical cell having a positive electrode containing as an active ingredient, an amorphous material of formula [V2O5]c[MgXy]d[MaOb]e is provided. In the formula M is an element selected from the group consisting of P, B, Si, Ge and Mo, and X is O, F, Cl, Br or I.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 14, 2015
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Fuminori MIZUNO, Ruigang Zhang, Jason Germain, Keiko Kato, Timothy Sean Arthur
  • Publication number: 20150129913
    Abstract: An electrode structure includes a first diffusion barrier layer, an aluminum reflective layer formed over the first diffusion barrier layer. The aluminum reflective layer has a thickness from about 500 angstroms (?) to less than 2,000 ?, a second diffusion barrier layer formed over the aluminum reflective layer, and an electrode layer overlying the second diffusion barrier layer. The electrode structure is applicable in a light emitting diode device.
    Type: Application
    Filed: July 21, 2014
    Publication date: May 14, 2015
    Inventors: Po-Yang CHANG, Tzu-Hung CHOU
  • Publication number: 20150125748
    Abstract: A battery grid comprising a continuous cast and mechanically deformed lead-based alloy that comprises lead and silver and is essentially free of calcium, wherein the silver is at a concentration that is in a range of about 0.003 to about 0.015 weight percent, and has a predominant equiaxed grain structure that comprises grain sizes that are in a range of about 0.1 to about 5 microns. Other alloy constituents include bismuth at a concentration that is in a range of about 0.003 to about 0.002 weight percent and tin at a concentration that is in a range of about 0.2 to about 1.8 weight percent. A process for making strip of said alloy for use in manufacturing said grid. A battery comprising said grid.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Inventors: Frank A. Fleming, Timothy W. Ellis, David R. Prengaman
  • Patent number: 9005818
    Abstract: A negative electrode active material including mesoporous silica having mesopores filled with a metal and a lithium battery including the same.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: April 14, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: So-Ra Lee, Jae-Myung Kim, Jun-Sik Kim, Kyeu-Yoon Sheem
  • Patent number: 8993169
    Abstract: A positive electrode composition is presented. The composition includes at least one electroactive metal; at least one alkali metal halide; and at least one additive including a plurality of nanoparticles, wherein the plurality of nanoparticles includes tungsten carbide. An energy storage device, and a related method for the preparation of an energy storage device, are also presented.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: March 31, 2015
    Assignee: General Electric Company
    Inventors: Richard Louis Hart, Michael Alan Vallance, David Charles Bogdan, Jr.
  • Publication number: 20150079471
    Abstract: The present disclosure provides a lithium-ion battery positive electrode material and a preparation method thereof.
    Type: Application
    Filed: August 14, 2014
    Publication date: March 19, 2015
    Inventors: Xiangpeng FANG, Jin CHONG, Quan KUANG, Na LIU