Electrode Or Plural Tablets, Pellets Or Discs Patents (Class 429/128)
  • Patent number: 10784474
    Abstract: These present disclosure provides a flexible battery comprising a top layer and a bottom layer coupled at a number of attachment points to form chambers within the battery to retain a shape of the battery under an increase in internal pressure. The flexible battery can include an anode and separator and a cathode, where the separator is a flexible polymer.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: September 22, 2020
    Assignee: INTEL CORPORATION
    Inventors: Andrew Keates, Naoki Matsumura
  • Patent number: 10770725
    Abstract: Cathode active materials for alkaline cells are disclosed. In particular, the cathode structures encompass conductive carbons introduced to the cathode so as to have a specific spatial orientation and/or a multi-carbon structure. The overall intent is to leverage the conductor(s) provided to the cathode structure to improve electronic and ionic conductance and, by extension, improve battery discharge performance.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: September 8, 2020
    Assignee: Energizer Brands, LLC
    Inventor: Weiwei Huang
  • Patent number: 10766603
    Abstract: A system changes the pitch of blades of a turbine engine propeller having a plurality of blades. The system includes a plurality of links, each link being connected to one of the propeller blades at a first interface, and a control means acting on the link and having a body movable in translation along a longitudinal axis. A load transfer module is arranged between the links and the control means and is connected to the links at a plurality of second interfaces. A first adjustment element is configured to adjust an axial position of the second interfaces along the axis to provide adjustment of the pitch of all of the blades simultaneously. A plurality of second adjustment elements are configured to adjust an axial distance between each first interface and the corresponding second interface to allow the pitch of each blade to be adjusted individually.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: September 8, 2020
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Sébastien Emile Philippe Tajan, Régis Eugène Henri Servant, Dominique Gerhardt Mayhew, Eddy Keomorakott Souryavongsa, Xavier Bertrand Miqueu
  • Patent number: 10734648
    Abstract: Provided is a lithium ion battery that exhibits a significantly improved specific capacity and much longer charge-discharge cycle life. In one preferred embodiment, the battery comprises a cathode, an anode, an electrolyte in ionic contact with both the cathode and the anode, and an optional separator disposed between the cathode and the anode, wherein, prior to the battery being assembled, the anode comprises (a) an anode active material layer composed of fine particles of a first anode active material having an average size from 1 nm to 10 ?m, an optional conductive additive, and an optional binder that bonds the fine particles and the conductive additive together to form the anode active material layer having structural integrity and (b) a layer of lithium metal or lithium metal alloy having greater than 80% by weight of lithium therein, wherein the layer of lithium metal or lithium metal alloy is in physical contact with the anode active material layer.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: August 4, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 10677849
    Abstract: An electrochemical cell comprises an electrolyte capable of facilitating ion transfer between an anode and a cathode. A method for identifying and/or characterizing a soft short in an electrochemical cell comprises cooling the electrochemical cell to an observation temperature at which inter-electrolyte ion migration is substantially inhibited, observing the open circuit voltage (OCV) of the electrochemical cell at the observation temperature for a period of time, and determining the presence of a soft short in the electrochemical cell if the OCV reaches a minimum threshold voltage prior to the expiration of the period of time. The method can optionally further include generating an impedance spectrum for the cell via potentiostatic electrochemical impedance spectroscopy (PETS) at or below the observation temperature, and defining the cell leakage resistance as the maximum impedance limit of the impedance spectrum. The observation temperature can comprise the glass transition temperature of the electrolyte.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: June 9, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John M. Moote, Vijay P. Saharan, Patrick M. Hanley, Edgar P. Calderon
  • Patent number: 10658654
    Abstract: A composite anode active material includes: a core comprising silicon; and a carbonaceous shell, wherein the carbonaceous shell includes a carbonaceous material and lithium titanium oxide.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: May 19, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Dukhyoung Yoon, Sangkook Mah
  • Patent number: 10651460
    Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a separator. The positive electrode includes a positive electrode current collector, a first positive electrode mixture layer that is provided on the positive electrode current collector, and a second positive electrode mixture layer that is provided on the first positive electrode mixture layer. The first positive electrode mixture layer includes a first positive electrode active material and a first conductive material. The second positive electrode mixture layer includes a second positive electrode active material and a second conductive material. The first positive electrode active material includes a lithium composite oxide having a layered crystal structure. The second positive electrode active material includes a lithium composite phosphate having an olivine-type crystal structure.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: May 12, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroya Umeyama, Keiichi Takahashi, Shuji Tsutsumi, Tatsuya Hashimoto
  • Patent number: 10622614
    Abstract: A cell structure for a secondary battery includes an electrode assembly including a plurality of electrodes, a plurality of electrode tabs extending from the electrodes to an outside of the electrode assembly, and a plurality of lead tabs electrically connected to the electrode tabs and contacting the electrode assembly. In the cell structure, a part of each of the lead tabs is folded, and the electrode tabs are inserted into the folded part of each of the lead tabs.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: April 14, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Dongjin Ham, Seungsik Hwang, Jaeman Choi, Moonseok Kwon, Minsang Song
  • Patent number: 10601028
    Abstract: A method for cutting an electrode of an electrochemical generator including a metal sheet with a laser beam of a power lower than or equal to 600 W, one face of the metal sheet being partially coated with a thinly layered band called the cutting band, the optical absorption factor of which for an emission wavelength of the laser beam is higher than or equal to 0.5 and preferably higher than or equal to 0.8, and extends so as to define a cutting path, in which the laser beam is focused on the cutting band and the laser beam is animated with a relative movement with respect to the electrode so as to travel the cutting path.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: March 24, 2020
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Benoit Barthe, Jeremie Salomon, Remi Vincent
  • Patent number: 10559785
    Abstract: The present invention relates to a sealing apparatus sealing a sealing part of a battery case at which an electrode lead coupled to an electrode assembly is disposed. The sealing apparatus comprises: a thermal fusion member applying heat and a pressure to the sealing part of the battery case, at which the electrode lead is disposed, to seal the sealing part; and a temperature rising prevention member supported on a front end of the electrode lead to cool the sealing part through the electrode lead, thereby preventing the sealing part from increasing in temperature.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: February 11, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Cho Long Kim, Yong Su Choi, Sang Hun Kim, Sang Suk Jung, Won Pill Hwang, Yong Kim
  • Patent number: 10461305
    Abstract: The invention relates to a battery cell (2), comprising a prismatically designed cell housing (3) with a cover surface (31), on which a negative terminal (11) and a positive terminal (12) are arranged, and at least one electrode coil (10) which is arranged inside the cell housing (3) and comprises a cathode (14) having cathode contact lugs (24) and an anode (16) having anode contact lugs (26). The cathode contact lugs (24) and the anode contact lugs (26) extend next to one another from the electrode coil (10) toward exactly one end face (35, 36) of the cell housing (3), the end face (35, 36) running at a right angle to the cover surface (31). The invention also relates to a battery system comprising at least one battery cell (2) according to the invention.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 29, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Grasser, Holger Reinshagen, Martin Gerlach
  • Patent number: 10418605
    Abstract: An apparatus system is provided which comprises: a fabric; a self-assembled monolayer (SAM) material formed on the fabric; and a battery cell formed on the fabric, wherein a current collector of the battery cell is at least in part formed on the SAM material.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: September 17, 2019
    Assignee: Intel Corporation
    Inventors: Veronica A. Strong, Sasha N. Oster, Feras Eid, Aranzazu Maestre Caro
  • Patent number: 10418666
    Abstract: A battery comprises a cathode, an anode and an electrolyte. The cathode comprises a cathode active material which is configured to reversibly intercalate-deintercalate a plurality of first metal ions. The electrolyte comprises at least a solvent configured to dissolve a solute, the solute being ionized to a plurality of second metal ions that can be reduced to a metallic state during a charge cycle and be oxidized from the metallic state to the second metal ions during a discharge cycle and the first metal ions The battery further comprises an anode modifier which is selected from at least one of gelatin, agar, cellulose, cellulose ether and soluble salt thereof, dextrin and cyclodextrin.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: September 17, 2019
    Assignees: POSITEC POWER TOOLS (SUZHOU) CO., LTD.
    Inventors: Yang Liu, Pu Chen, Jing Yan
  • Patent number: 10396348
    Abstract: The present invention is directed to a negative electrode material for a non-aqueous electrolyte secondary battery, including a conductive powder composed of silicon-based active material particles coated with a conductive carbon film, in which the conductive carbon film exhibits a d-band having a peak half width of 100 cm?1 or more as determined from a Raman spectrum of the conductive carbon film. The invention provides a negative electrode material for a non-aqueous electrolyte secondary battery that has excellent cycle performance and keeps high charge and discharge capacity due to use of a silicon-based active material, a method of producing the negative electrode material for a non-aqueous electrolyte secondary battery, and a non-aqueous electrolyte secondary battery.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: August 27, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masahiro Furuya, Kohta Takahashi, Hiroki Yoshikawa, Hiromichi Kamo, Takakazu Hirose
  • Patent number: 10367202
    Abstract: An electrode for an energy storage device includes carbon black particles having (a) a Brunauer-Emmett-Teller (BET) surface area ranging from 70 to 120 m2/g; (b) an oil absorption number (OAN) ranging from 180 to 310 mL/100 g; (c) a surface energy less than or equal to 15 mJ/m2; and (d) either an La crystallite size less than or equal to 29 ?, or a primary particle size less than or equal to 24 nm.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: July 30, 2019
    Assignee: Cabot Corporation
    Inventors: Andriy Korchev, Aurelien L. DuPasquier, Miodrag Oljaca, Geoffrey D. Moeser
  • Patent number: 10326122
    Abstract: A rechargeable battery includes an electrode assembly including a first electrode, a second electrode, and a separator interposed therebetween, a center pin at a center of the electrode assembly, the center pin including a bonding portion electrically coupled to the first electrode, and a terminal portion connected to one end of the bonding portion, a case housing the electrode assembly, and a gasket insulating between the center pin and the case, the gasket enclosing an edge of the terminal portion of the center pin.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: June 18, 2019
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Ji-Woon Lee, Eun-Young Goh, Jin-Hyon Lee, Sang-In Park, Sung-Yong Kim, Jin-Seon Shin, Jong-Ki Lee
  • Patent number: 10305103
    Abstract: A structurally inhomogeneous lithium metal oxide material having the Formula (I): y[xLi2MO3•(1-x)LiM?O2]•(1-y)Li1+dM?2?dO4; wherein 0?x?1; 0<y<1; 0?d?0.33; and wherein the Li1+dM?2?dO4 component comprises a spinel structure, and each of the Li2MO3 and the LiM?2 components thereof comprise layered structures. Each of M, M?, and M? independently comprises one or more metal ions. The composition of the material of Formula (I) varies across the electrode particles by changing at least one of x, y, d, M, M? and M?. Electrodes, cells and batteries comprising the lithium metal oxide material are also described.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: May 28, 2019
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Michael M. Thackeray, Jason Croy, Khalil Amine, Bryan T. Yonemoto, Joong Sun Park
  • Patent number: 10243196
    Abstract: A positive electrode mixture layer (12) includes a first layer (12a) that has a main surface MS and a second layer (12b) formed closer to the positive electrode current collector (11) side than the first layer (12a). A ratio of the volume of the first layer (12a) to the volume of the positive electrode mixture layer (12) is 20 to 75 vol %. The first layer (12a) contains lithium iron phosphate (LFP) (1) and lithium nickel cobalt manganese composite oxide (NCM) (2). A ratio of the mass of the LFP (1) to the total mass of the LFP (1) and the NCM (2) in the first layer (12a) is more than 0 and 80 mass % or less. The second layer (12b) contains NCM (2). A ratio of the mass of the LFP (1) to the total mass of the positive electrode active material in the positive electrode mixture layer (12) is 7.5 to 20 mass %. A maximum pore size of the first layer (12a) is 0.50 to 0.70 ?m.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: March 26, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideyuki Saka, Keiichi Takahashi, Hideaki Fujita, Tatsuya Hashimoto
  • Patent number: 10205188
    Abstract: A manufacturing method for a secondary battery according to the invention includes an assembling step in which an insulating member having an insulating property is assembled to an electrode body, the insulating member having a first inclined portion and a second inclined portion provided so as to face each other in one end of the insulating member, as well as a gap provided between the first inclined portion and the second inclined portion. In the first inclined portion and the second inclined portion, inclined surfaces are formed on surfaces of the first inclined portion and the second inclined portion on sides facing each other, and are inclined in a direction in which the first inclined portion and the second inclined portion are separated from each other as the first inclined portion and the second inclined portion extend to tip sides.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: February 12, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mizuho Matsumoto, Masashi Kato
  • Patent number: 10147934
    Abstract: A lithium accumulator including: a current collector; a stack of at least two layers arranged on at least one surface of the current collector, wherein a first layer is in contact with the surface of the current collector and includes a mixture of at least two compounds selected from a lithiated manganese phosphate, a lithiated transition metal oxide, and a lithiated spinel-type manganese oxide; and an outer layer including an active material having at least 90% of a lithiated iron phosphate.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: December 4, 2018
    Assignee: SAFT
    Inventors: Erwan Dumont, Philippe Borel, Yannick Toret
  • Patent number: 9991504
    Abstract: Provided herein is a method for preparing a cathode electrode based on an aqueous slurry. The invention provides a cathode slurry comprising a cathode material especially high Ni ternary cathode material with improved water stability. The cathode material shows lower tendencies for pH change when applied in the aqueous slurry. The lower processing temperatures may avoid the undesirable decomposition of cathode material having high nickel and/or manganese content. In addition, the batteries having the electrodes prepared by the method disclosed herein show impressive energy retention. The capacity retention of the battery is not less than 60% of its initial capacity after 2 weeks of high temperature storage.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: June 5, 2018
    Assignee: GRST International Limited
    Inventors: Kam Piu Ho, Ranshi Wang, Peihua Shen
  • Patent number: 9985283
    Abstract: An active material is disclosed in the present invention. The active material includes a lithium active material and a complex shell which completely covers the lithium active material. The complex shell includes at least one protection covering and at least one structural stress covering. The protection covering is a kind of metal which may alloy with the lithium ion. The structural stress covering dose not alloy with the lithium active material. The complex shell efficiently blocks the lithium active material out of the moisture and the oxygen so that the lithium active material is able to be stored and operated in the general surroundings. The structural stress provided via the structural stress covering may keep the configuration of the active material unbroken after the repeating reactions.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: May 29, 2018
    Assignee: PROLOGIUM HOLDING INC.
    Inventor: Szu-Nan Yang
  • Patent number: 9985285
    Abstract: An active material is disclosed in the present invention. The active material includes a lithium active material and a complex shell which completely covers the lithium active material. The complex shell includes at least one protection covering and at least one structural stress covering. The protection covering is a kind of metal which may alloy with the lithium ion. The structural stress covering dose not alloy with the lithium active material. The complex shell efficiently blocks the lithium active material out of the moisture and the oxygen so that the lithium active material is able to be stored and operated in the general surroundings. The structural stress provided via the structural stress covering may keep the configuration of the active material unbroken after the repeating reactions.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: May 29, 2018
    Assignee: PROLOGIUM HOLDING INC.
    Inventor: Szu-Nan Yang
  • Patent number: 9979044
    Abstract: A power storage device includes an electrode assembly formed by stacking a positive electrode sheet, a negative electrode sheet, and a sheet-like separator arranged between the positive and negative electrode sheets. The positive electrode sheet includes a positive electrode thin metal plate, which includes a first positive electrode edge and a second positive electrode edge. A surface of the positive electrode sheet includes a positive electrode application region and a positive electrode non-application region. The negative electrode sheet includes a negative electrode thin metal plate including a first negative electrode edge and a second negative electrode edge. A positive electrode border, which is a border between the positive electrode application region and the positive electrode non-application region, is located between the first positive electrode edge and the second positive electrode edge.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: May 22, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Atsushi Minagata
  • Patent number: 9947964
    Abstract: A battery includes a positive electrode formed with a positive electrode active material layer containing a positive electrode active material at least on one side of a positive electrode current collector, a negative electrode formed with a negative electrode active material layer containing a negative electrode active material at least on one side of a negative electrode current collector, a separator, and an electrolyte containing solid particles. The capacity area density (mAh/cm2) of the negative electrode active material layer is equal to or higher than 2.2 mAh/cm2 and equal to or lower than 10 mAh/cm2, and the capacity area density (mAh/cm2) of a gap in the negative electrode active material layer is equal to or higher than 5.9 mAh/cm2 and equal to or lower than 67 mAh/cm2.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: April 17, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kazuhito Hatta, Nobuaki Shimosaka
  • Patent number: 9876251
    Abstract: Layer cell includes an outer casing, positive electrode, negative electrode, separator disposed between the positive electrode and the negative electrode, and electrically conductive current collector passing through the positive electrode, the negative electrode and the separator in an axial direction of the outer casing. The positive electrode, the negative electrode and the separator are stacked in the axial direction of the outer casing. First electrode which is one of the positive electrode and the negative electrode is in contact with an inner surface of the outer casing, but is not in contact with the current collector. Second electrode which is the other electrode is not in contact with the outer casing, but is in contact with the current collector. An outer edge of the second electrode is covered with the separator. Peripheral edge of a hole, in the first electrode is covered with the separator.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: January 23, 2018
    Assignee: EXERGY POWER SYSTEMS, INC.
    Inventors: Kaduo Tsutsumi, Masateru Nakoji
  • Patent number: 9806354
    Abstract: To provide a manufacturing method of a membrane electrode assembly which improves the reliability of seal, mechanical strength, and handling ability of a solid polymer type fuel cell. The manufacturing method of a membrane electrode assembly according to the present invention prepares a membrane electrode assembly which differs in size of gas diffusion layers at an anode side and cathode side, provides the outer peripheral edge of the membrane electrode assembly with a resin frame by molding, and, at that time, provides projections or a concave part and convex part at a top mold and bottom mold used for the molding so as to keep to a minimum the penetration of the resin frame material to the gas diffusion layers and/or electrode layers and prevent warping of the outer peripheral edges of the larger gas diffusion layer etc.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: October 31, 2017
    Assignee: W. L. Gore & Associates, Co., Ltd.
    Inventors: Yoichi Suzuki, Tomoya Nomura, Takuya Kosaka, Shinichi Nishimura
  • Patent number: 9786889
    Abstract: Provided is an electrode assembly of a secondary battery, including: a first electrode unit and a second electrode unit; a separation membrane interposed between the first electrode unit and the second electrode unit; and a first coating unit having an insulating member which is made of a metal oxide material and is coated along front and rear edge portions of the first electrode unit.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: October 10, 2017
    Assignee: SK INNOVATION CO., LTD.
    Inventor: Min Seong Kim
  • Patent number: 9780399
    Abstract: An electrode assembly and a method of making an electrode assembly. One embodiment of the method includes coating an ionomer solution onto a catalyst coated diffusion media to form a wet ionomer layer, and applying a porous reinforcement layer to the wet ionomer layer such that the wet ionomer layer at least partially impregnates the reinforcement layer. Drying the wet ionomer layer with the impregnated reinforcement layer and joining it to the catalyst coated diffusion media forms an assembly that includes an integrally-reinforced proton exchange membrane layer. This layer may be additionally joined to other ionomer layers and other catalyst coated diffusion media such that a membrane electrode assembly is formed.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: October 3, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Scott C. Moose, Scott L. Peters, Timothy J. Fuller
  • Patent number: 9735419
    Abstract: An object is to provide a secondary battery having excellent charge-discharge cycle characteristics. A secondary battery including an electrode containing silicon or a silicon compound is provided, in which the electrode is provided with a layer containing silicon or a silicon compound over a layer of a metal material; a mixed layer of the metal material and the silicon is provided between the metal material layer and the layer containing silicon or a silicon compound; the metal material has higher oxygen affinity than that of ions which give and receive electric charges in the secondary battery; and an oxide of the metal material does not have an insulating property. The ions which give and receive electric charges are alkali metal ions or alkaline earth metal ions.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: August 15, 2017
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Kazutaka Kuriki, Tamae Moriwaka, Satoshi Murakami
  • Patent number: 9553309
    Abstract: Silicon oxide particles each comprising an inner portion having an iron content of 10-1,000 ppm and an outer portion having an iron content of up to 30 ppm are suitable as negative electrode active material in nonaqueous electrolyte secondary batteries. Using a negative electrode comprising the silicon oxide particles as active material, a lithium ion secondary battery or electrochemical capacitor having a high capacity and improved cycle performance can be constructed.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: January 24, 2017
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hirofumi Fukuoka, Susumu Ueno, Koichiro Watanabe
  • Patent number: 9496584
    Abstract: A wound-type accumulator is equipped with a cylindrical wound electrode unit, which has belt-like positive electrode and negative electrode and configured by winding an electrode stack obtained by stacking the positive electrode and negative electrode through a separator from one end thereof, and an electrolytic solution. The negative electrode and/or the positive electrode is doped with lithium ions by electrochemical contact of the negative electrode and/or the positive electrode with a lithium ion source, intra-positive electrode spaces are formed in the positive electrode, and at least one lithium ion source is provided in the intra-positive electrode space or at a position opposing to the intra-positive electrode space in the negative electrode in a state coming into no contact with the positive electrode.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: November 15, 2016
    Assignee: JM Energy Corporation
    Inventors: Makoto Taguchi, Yuu Watanabe, Nobuo Ando, Naoshi Yasuda, Chisato Marumo
  • Patent number: 9492812
    Abstract: The surface of a component includes metallic fractions of Ag and/or Ni, touching MnO2 fractions which provide an antimicrobial effect. When using toxicologically safe Ni, these antimicrobial surfaces can be used in the food industry, for example. The surface can, for example, be applied by way of a coating on the component with the metallic fraction and the MnO2 fraction applied in two layers.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: November 15, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Christian Doye, Ursus Krüger, Uwe Pyritz
  • Patent number: 9461337
    Abstract: A separator for a rechargeable electrochemical cell has a conductive first layer and a non-conductive second layer. The non-conductive second layer and the conductive first layer are adhered to one another, wherein the non-conductive second layer has a melting point below a critical temperature for the rechargeable electrochemical cell and discharges the cell when subject to overheating.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 4, 2016
    Assignee: Freya Energy, Inc.
    Inventor: Andrew James Manning
  • Patent number: 9385361
    Abstract: A rechargeable battery is disclosed. In one aspect, the battery includes an electrode assembly having an uncoated region, a case accommodating the electrode assembly therein and an insulation plate disposed on the uncoated region of the electrode assembly. The battery also includes a gasket formed on the insulation plate, wherein the gasket comprises a support supported by and contacting an upper surface of the insulation plate, wherein the support comprises an inner side surface and an outer side surface, and wherein at least one of the inner and outer side surfaces forms an obtuse angle with respect to the upper surface of the insulation plate. The battery further includes a cap assembly contacting the gasket and connected to the uncoated region of the electrode assembly through a lead tab.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: July 5, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ik-Kyu Kim, Seok-Joon Yoon
  • Patent number: 9381369
    Abstract: Medical devices and batteries for use with medical devices are disclosed. An example battery may include a housing. A plurality of cathode pellets may be disposed within the housing. An anode may extend through at least some of the plurality of cathode pellets. A lid may be attached to the housing.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: July 5, 2016
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Ignacio Chi, Joseph C. Delmedico, Brian L. Schmidt
  • Patent number: 9349542
    Abstract: An energy storage stack of at least two surface-mediated cells (SMCs) internally connected in parallel or in series. The stack includes: (A) At least two SMC cells, each consisting of (i) a cathode comprising a porous cathode current collector and a cathode active material; (ii) a porous anode current collector; and (iii) a porous separator disposed between the cathode and the anode; (B) A lithium-containing electrolyte in physical contact with all the electrodes, wherein the cathode active material has a specific surface area no less than 100 m2/g in direct physical contact with the electrolyte to receive lithium ions therefrom or to provide lithium ions thereto; and (C) A lithium source. This new-generation energy storage device exhibits the highest power densities of all energy storage devices, much higher than those of all the lithium ion batteries, lithium ion capacitors, and supercapacitors.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: May 24, 2016
    Assignee: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, GuoRong Chen, Xiqing Wang, Bor Z. Jang, Yanbo Wang
  • Patent number: 9246168
    Abstract: The present invention provides a positive electrode active material for lithium secondary batteries, comprising domain-oriented agglomerated particles, wherein each of the domain-oriented agglomerated particles comprises a plurality of individually oriented secondary particles such that adjacent secondary particles thereof have mutually different orientation directions, and wherein each of the individually oriented secondary particles is composed of a plurality of primary particles which are composed of a lithium complex oxide with a layered rock-salt structure and are oriented such that the (003) planes of the primary particles do not intersect each other at least in one axial direction. According to the present invention, a positive electrode active material can be provided that is capable of achieving not only high initial output performance but also a high output performance retention rate when charging and discharging are performed repeatedly.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: January 26, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukinobu Yura, Kei Sato, Nobuyuki Kobayashi
  • Patent number: 9214662
    Abstract: An electrode manufacturing method includes: a coating process of applying a coating material to a metal foil while the metal foil is fed forward to form a coated foil; and a drying process of drying the coated foil by heating while the coated foil is fed forward to pass through a drying oven of a drying machine placed in line on a feeding path. The drying oven includes at least a first drying chamber which the coated foil first passes through in the drying process and a second drying chamber which the coated foil passes through following the first drying chamber. The first drying chamber has a smaller area in cross section perpendicular to the feed direction along the feeding path than an area of the second drying chamber to provide a smaller volume than a volume of the second drying chamber.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: December 15, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takahiko Nakano, Kenji Tsuchiya, Shuji Tsutsumi, Tatsuya Hashimoto
  • Patent number: 9190653
    Abstract: The accumulator assembly comprises a plurality of electrical energy accumulator elements 12 superimposed along a stacking axis, each element comprising connecting electrodes 18, 20, spacers 22, 24 positioned axially between at least some of said connecting electrodes, and assembly bars 54 extending axially through the apertures in the connecting electrodes and in the spacers. The assembly further comprises end plates 50, 52 which interact with the assembly bars to clamp the connecting electrodes and the spacers axially, and resilient prestressing means 80 which interact with at least one of the end plates to exert axial prestressing forces on the stacked connecting electrodes and spacers.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: November 17, 2015
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.
    Inventor: Olivier Joye
  • Patent number: 9184435
    Abstract: The method for producing an electrode for an electrochemical element of the present invention includes a slurry filling step of filling a slurry containing an active material into continuous pores of an aluminum porous body having the continuous pores, and a slurry drying step of drying the slurry filled, and in this method, after the slurry drying step, an electrode for an electrochemical element is produced without undergoing a compressing step of compressing the aluminum porous body having the slurry filled therein and dried. In the electrode, a mixture containing an active material is filled into continuous pores of an aluminum porous body having the continuous pores, and porosity (%) of the aluminum porous body, the porosity being represented by the following equation, is 15 to 55%.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: November 10, 2015
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.
    Inventors: Akihisa Hosoe, Kazuki Okuno, Hajime Ota, Koutarou Kimura, Kengo Goto, Junichi Nishimura, Hideaki Sakaida
  • Patent number: 9172073
    Abstract: A secondary battery includes a positive electrode, a negative electrode containing a metal compound having a lithium ion absorption potential of 0.2V (vs. Li/Li+) or more, a separator and a nonaqueous electrolyte. The separator is provided between the positive electrode and the negative electrode. The separator comprises cellulose fibers and pores having a specific surface area of 5 to 15 m2/g. The separator has a porosity of 55 to 80%, and a pore diameter distribution having a first peak in a pore diameter range of 0.2 ?m (inclusive) to 2 ?m (exclusive) and a second peak in a pore diameter range of 2 to 30 ?m.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: October 27, 2015
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Norio Takami, Hiroki Inagaki, Takashi Kuboki
  • Patent number: 9166220
    Abstract: According to an embodiment of the present invention, a negative active material for a rechargeable lithium battery includes silicon oxide particles represented by SiOx (where 0<x<2) in which an atom % of a silicon phase decreases in a concentration gradient according to a depth from the surface of each particle to the center of the particle, and has an atom % of an O phase that increases in a concentration gradient. In the atom % concentration graph of the silicon (Si) phase according to the depth, the integral value of the atom % concentration of the silicon (Si) phase from the surface (where the depth is 0) to a depth where the concentration of the silicon (Si) phase is 55 atom % is about 5000 to about 40000 nm·atom %.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: October 20, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Eun Park, Young-Ugk Kim
  • Patent number: 9088045
    Abstract: A silicon-based negative active material that includes a core including silicon oxide represented by SiOx (0<x<2); and a coating layer including metal oxide, and the metal of the metal oxide includes aluminum (Al), titanium (Ti), cobalt (Co), magnesium (Mg), calcium (Ca), potassium (K), sodium (Na), boron (B), strontium (Sr), barium (Ba), manganese (Mn), nickel (Ni), vanadium (V), iron (Fe), copper (Cu), phosphorus (P), scandium (Sc), zirconium (Zr), niobium (Nb), chromium (Cr), and/or molybdenum (Mo), the core has a concentration gradient where an atom % concentration of a silicon (Si) element decreases to the center of the core, and an atom % concentration of an oxygen (O) element increases to the center, and a depth from the surface contacting the coating layer where a concentration of the silicon (Si) element is about 55 atom % corresponds to about 2% to about 20% of a diameter of the core.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: July 21, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Eun Park, Young-Ugk Kim, Young-Hwan Kim, Sang-Min Lee, Duck-Chul Hwang, Young-Jun Lee, Young-Min Kim, Tae-Geun Kim, Seung-Ho Na, Ung-Kuk Heo, Deuk-Hwa Lee
  • Patent number: 8974956
    Abstract: A secondary battery includes at least one positive electrode plate folded on the basis of a first fold line, and at least one negative electrode plate folded on the basis of a second fold line and stacked to face the at least one positive electrode plate with the second fold line coinciding with the first fold line.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: March 10, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chihoon Song, Andrey Matyushenko
  • Publication number: 20140377626
    Abstract: A Nickel iron battery using a mono-block housing that has cells with leak-proof intercell connections. The intercell connections use compressed grommets to prevent fluid transfer between the cells. Each cell generates a charge that can be connected in series or parallel as required. The cells use an electrode plate that enables a manufacturing process which yields higher efficiency, higher throughput, and significantly lower battery cost. The anode composition of the cells has iron powder to increase cathode utilization, therefore lowering cathode material usage and lowering production cost.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 25, 2014
    Inventors: Viet Vu, Ajoy Datta, Lucien Paul Fontaine, Andrew James Parth
  • Publication number: 20140377627
    Abstract: There is provided a secondary battery including a positive electrode, a negative electrode, and a solid electrolyte layer disposed between the positive electrode and the negative electrode, wherein at least one of the positive electrode and the negative electrode contains a granular solid electrolyte and a granular conduction aid both bonded to a surface of a granular electrode active substance.
    Type: Application
    Filed: November 16, 2012
    Publication date: December 25, 2014
    Inventors: Tatsuya Furuya, Yuri Nakayama
  • Patent number: 8900739
    Abstract: An electrode layered product for a cell includes a first electrode plate having a shape of a strip, a first separator having a shape of a strip, a second separator having a shape of a strip, a second electrode plate having a pectinate, tooth shape, and a third electrode plate having a pectinate, tooth shape. The first separator is stacked on one surface of the first plate. The second separator is stacked on the other surface of the first plate. The second plate is stacked on an opposite side of the first separator from the first plate. The second plate includes tooth sections and a joining section. The third plate is stacked on an opposite side of the second separator from the first plate. The third plate includes tooth sections and a joining section. The first and second separators and the first, second and third plates are bent in a zigzag manner.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: December 2, 2014
    Assignee: Denso Corporation
    Inventors: Takahiko Yamamoto, Teruhiko Kameoka, Katsunori Kubota
  • Publication number: 20140329126
    Abstract: A lithium-ion battery generally includes an electrode pair, an electrolyte, and a separator. The electrode pair includes a first electrode and a second electrode, wherein the first electrode and the second electrode are of opposite polarity. The electrolyte is configured to allow movement of ions between the first electrode and the second electrode. The separator is between the first electrode and the second electrode. The first electrode generally includes an active layer and a current collector. The active layer comprises a plurality of composite electrode pellets that are non-hollow and include an active material and a binder material. The active layer is provided on a first side of the current collector. The active layer has an overall porosity of greater than approximately 40%. The overall porosity includes both intra-pellet porosity and inter-pellet porosity.
    Type: Application
    Filed: July 16, 2014
    Publication date: November 6, 2014
    Inventors: Bryan Ho, Bryan Ng
  • Patent number: 8865844
    Abstract: An electrode including a binder comprising a waterborne polyurethane polymer compound and an electrode active material is provided. The waterborne polyurethane polymer compound improves the binding properties of the electrode. In addition, the polymer compound disperses well in water and is hardened through a crosslinking reaction to increase elastic force, thereby enabling adjustment of elastic and binding forces. As a result, a battery including the polymer compound has excellent recovery and charge/discharge properties.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: October 21, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seung-sik Hwang, Jin-hwan Park, Myung-dong Cho