Grid Or Holder Has Nonconducting Component Portion Thereof Patents (Class 429/234)
  • Patent number: 11322749
    Abstract: A battery using porous polymer materials with tapered or cone-shaped metalized pores. The types of batteries include, but are not limited to, Li—CoO2, Li—Mn2O4, Li—FePO4, Li—S, Li—O2, and other lithium cathode chemistries. The tapered metalized pores contain lithium metal in small reaction zones in the anode and cathode in a flexible structure. The form factor of such assembly would be very thin. Because of the thin form factor these electrodes would be suitable for batteries that require high power density, such certain electrical vehicles, power tools, and wearable devices.
    Type: Grant
    Filed: March 7, 2020
    Date of Patent: May 3, 2022
    Inventor: Slobodan Petrovic
  • Patent number: 11177479
    Abstract: The present disclosure relates to the field of battery and, in particular, relates to a current collector, an electrode plate including the current collector, and an electrochemical device. The current collector of the present disclosure includes an insulation layer and a conductive layer. The insulation layer is used to support the conductive layer. The conductive layer is used to support an electrode active material layer and is located on at least one surface of the insulation layer. The insulation layer has a density smaller than that of the conductive layer. The insulation layer has a thickness of D1 satisfying 1 ?m?D1?10 ?m. The conductive layer has a thickness of D2 satisfying 200 nm?D2?1.5 ?m. The insulation layer has a tensile strength greater than or equal to 150 MPa.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: November 16, 2021
    Assignee: Contemporary Amperex Technology Co., Ltd.
    Inventors: Chengdu Liang, Huafeng Huang, Qisen Huang
  • Patent number: 11133509
    Abstract: The present invention relates to a current collector comprising: a substrate, the substrate being made of a first material, the first material comprising a polymer, and a grid in contact with the substrate, the grid being made of a second material, the second material comprising metal particles.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: September 28, 2021
    Assignee: ARMOR
    Inventors: Pierre Guichard, Simon Berthome
  • Patent number: 11101493
    Abstract: The present disclosure provides a secondary battery and an electrode plate thereof. The electrode member comprises an insulating substrate, a first conducting layer and an active material layer; the first conducting layer is provided on a surface of the insulating substrate, the active material layer is provided at a side of the first conducting layer away from the insulating substrate; the first conducting layer is provided with a stripe-shape groove extending in a height direction, the stripe-shape groove is used for releasing stress of the first conducting layer. The secondary battery comprises an electrode assembly, the electrode assembly comprises the electrode member.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: August 24, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Chengdu Liang, Zige Zhang, Qingrui Xue, Wei Li, Jing Li, Pengxiang Wang
  • Patent number: 11031651
    Abstract: A battery pack and a method of assembling a battery pack. The battery pack may include an outer housing; a cell module supportable by the outer housing, the cell module including a module housing, a plurality of battery cells supported by the module housing, the battery cells having an energy of at least about 60 Watt-hours, a controller operable to control an operation of the battery pack, a conductive strap electrically connected to at least one of the battery cells, a weld strap connected between the controller and the conductive strap, and a terminal electrically connected to the battery cells and operable to connect the battery cells to an electrical device for power transfer; and a vapor-deposited, hydrophobic nano coating applied to at least a portion of the cell module.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: June 8, 2021
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: James P. Elfering, Cameron R. Schulz, Ryan B. Jipp, Samuel Sheeks, Kyle J. Radovich, Michael Kolden
  • Patent number: 11018344
    Abstract: A current collector for electrical storage device includes a sheet-shaped conductive substrate and a coating layer disposed on one or both sides of the conductive substrate. The coating layer includes a powdery carbon material, acid-modified polyvinylidene fluoride and polyvinylpyrrolidone. The content of the polyvinylpyrrolidone is 0.099 to 5.0 mass %. The content of the powdery carbon material in the coating layer is 15.0 to 45.0 mass %. Also disclosed is a coating liquid for producing the current collector for electrical storage device as well as a method for producing the current collector for electrical storage device.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: May 25, 2021
    Assignee: SHOWA DENKO K.K.
    Inventors: Akifumi Takeda, Takeshi Nakamura, Hitoshi Yokouchi
  • Patent number: 11005105
    Abstract: The present disclosure relates to the technical field of battery, and in particular, relates to a current collector, an electrode plate and an electrochemical device. The current collector includes an insulation layer; a conductive layer located on at least one surface of the insulation layer; and a first protective layer provided on a surface of the conductive layer facing away from the insulation layer. The first protective layer is made of a metal. The current collector is provided with a plurality of holes penetrating through the insulation layer, the conductive layer and the first protective layer.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: May 11, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu Liang, Huafeng Huang, Qisen Huang, Xin Liu
  • Patent number: 10985377
    Abstract: The present disclosure relates to the technical field of battery, and in particular, relates to a current collector, an electrode plate including the current collector, and an electrochemical device. The current collector includes an insulation layer; and a conductive layer at least located on at least one surface of the insulation layer. The conductive layer has a room temperature thin film resistor of RS, where 0.01?/??RS?0.15?/?. The current collector is provided with a plurality of holes penetrating through the insulation layer and the conductive layer.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: April 20, 2021
    Inventors: Chengdu Liang, Huafeng Huang, Qisen Huang, Xin Liu
  • Patent number: 10944112
    Abstract: The present disclosure relates to the technical field of battery, and in particular, relates to a current collector, an electrode plate including the current collector, and an electrochemical device. The current collector includes an insulation layer; and a conductive layer at least located on at least one surface of the insulation layer. The conductive layer has a thickness of D2, where 30 nm?D2?3 ?m. The current collector is provided with a plurality of holes penetrating through the insulation layer and the conductive layer.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: March 9, 2021
    Inventors: Chengdu Liang, Huafeng Huang, Qisen Huang, Xin Liu
  • Patent number: 10741851
    Abstract: Provided is a bipolar plate-electrode assembly used in a redox flow battery stack, in which a bipolar plate (140) is made of a thermoplastic resin, electrodes (170A, 170B) disposed on both sides of the bipolar plate are thermally compressed at a central portion of the bipolar plate so as to be permeated into the bipolar plate, the size of the bipolar plate is larger than that of the electrodes, and fiber mats (150A, 150B) are hot-pressed so as to be permeated in an periphery (141) the bipolar plate which is a larger area than the electrodes.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: August 11, 2020
    Assignee: H2, INC.
    Inventors: Se Goo Kang, Yujong Kim, Kyung Mae Park, Shin Han
  • Patent number: 10622640
    Abstract: The present patent application relates to a device for a lithium electrochemical generator, said device comprising a band (100) of electrical insulating material including at least one polymer, and at least one metallic layer (102) which forms a current collector and is deposited on at least one of the two main faces in the central part of the band. The central part (100C) of the band comprises a plurality of holes (101) emerging on its two opposite main faces, said holes being filled at least partially with a metal that is continuous with each deposited metallic layer. The periphery of the band (100P) is devoid of metallic layer and at least one metallic layer is covered with an electrode of lithium insertion material.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: April 14, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Jean-Francois Damlencourt, Marianne Chami
  • Patent number: 10446840
    Abstract: Systems and methods which provide flexible zinc ion (Zn-ion) battery configurations with shape memory are described. For example, embodiments of flexible shape memory yarn batteries (SMYBs) may be fabricated using shape memory material wire, filament, and/or fiber and flexible conductive material yarn as flexible substrate materials. In accordance with some embodiments, Nickel-Titanium-based alloy wire may be coated with a zinc material to provide a flexible anode electrode for a SMYB. Additionally or alternatively, flexible stainless steel (SS) yarn may be coated with a manganese dioxide (MnO2) material to provide a flexible cathode electrode for a SMYB of embodiments. An aqueous electrolyte may be combined with the flexible cathode and anode electrodes to provide a SMYB in accordance with the concepts herein. The aqueous electrolyte may, for example, comprise a polymer gel electrolyte (e.g., gelatin-borax polymer gel electrolyte).
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: October 15, 2019
    Assignee: City University of Hong Kong
    Inventors: Zifeng Wang, Chunyi Zhi
  • Patent number: 10396364
    Abstract: Provided are a non-woven fabric current collector and a method and system of fabricating a battery using the same. An electrode according to an embodiment of the present invention includes a non-woven fabric current collector including a conductive non-woven fabric sheet including a network of conductive fibers and pores for communication between a main surface and the interior thereof; and conductive patterns partially blocking the pores on the main surface of the conductive non-woven fabric sheet.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: August 27, 2019
    Assignee: Jenax Inc.
    Inventors: Chang Hyeon Kim, Min Gyu Choi, Lee Hyun Shin
  • Patent number: 10386656
    Abstract: Methods and apparatus to form biocompatible energization elements are described. In some examples, the methods and apparatus to form the biocompatible energization elements involve forming cavities composing active cathode chemistry. The active elements of the cathode and anode are sealed with a biocompatible material. In some examples, a field of use for the methods and apparatus may include any biocompatible device or product that requires energization elements.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: August 20, 2019
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Daniel B. Otts, Randall B. Pugh, James Daniel Riall, Adam Toner, Frederick A. Flitsch, Shivkumar Mahadevan
  • Patent number: 10221485
    Abstract: Electrochemical cells for a lithium-ion battery are formed on a conductive wire substrate drawn through a multi-chamber deposition reactor, then assembled together in series and parallel connection to create a fail-safe battery. The wire substrate acts as current-limiting fuse that melts when there is a short affecting that cell, while remaining cells of the battery continue to operate. Each cell has solid-state thin film layers concentrically nucleated and grown over a length of the wire substrate as it is drawn through the successive deposition sections, including at least a first electrochemical active material layer, ion-exchange material layer, a second electrochemical active material layer, which is followed by deposition of a conductive layer forming an outer current collector and hermetic seal for the cell. The active material layers form electrodes (cathode and anode), wherein the anode may be formed as a multi-layer composite with stress-absorbing compliant layers.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: March 5, 2019
    Assignee: Adavolt, Inc.
    Inventors: Deepak Upadhyaya, Mark J. Isaacson
  • Patent number: 10170768
    Abstract: The invention relates to a grid arrangement for a plate-shaped battery electrode of an electrochemical accumulator having a frame and a grid arranged thereon, wherein the frame comprises at least one upper frame element having a connecting lug of the battery electrode disposed on its side facing away from the grid, and wherein the grid is at least formed by horizontal bars, which are bars extending substantially horizontally, and vertical bars, which are bars extending substantially vertically, wherein at least some of the vertical bars are arranged at different angles to one another in the shape of a fan. The invention further relates to an accumulator.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: January 1, 2019
    Assignee: Johnson Controls Autobatterie GmbH & Co. KGaA
    Inventors: Armin Staffeldt, Ingo Koch, Bernd Ide, Ornwasa Traisigkhachol
  • Patent number: 9847560
    Abstract: An electrochemical energy storage cell is configured to repeatedly store electrical energy, and includes two electrodes, and at least one reference electrode element to enable determining an electrode potential of at least one of the two electrodes. A rechargeable battery, and in particular to a rechargeable lithium-ion battery, includes the electrochemical energy storage cell, and is configured to supply electrical energy to an electrical load. A method includes determining an electrode potential of at least one of the two electrodes with reference to the at least one reference electrode element.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: December 19, 2017
    Assignees: Robert Bosch GmbH, Samsung SDI Co., Ltd.
    Inventor: Markus Kohlberger
  • Patent number: 9525177
    Abstract: An electrical storage device includes high surface area fibers (e.g., shaped fibers and/or microfibers) coated with carbon (graphite, expanded graphite, activated carbon, carbon black, carbon nanofibers, CNT, or graphite coated CNT), electrolyte, and/or electrode active material (e.g., lead oxide) in electrodes. The electrodes are used to form electrical storage devices such as electrochemical batteries, electrochemical double layer capacitors, and asymmetrical capacitors.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: December 20, 2016
    Assignee: Johnson Controls Technology Company
    Inventors: Richard M. Sturgeon, Dennis A. Wetzel, Robert G. Gruenstern, William J. Wruck, Ramachadran Subbaraman, James Symanski, Eberhard Meissner
  • Patent number: 9520615
    Abstract: Disclosed are a thin film battery in which a negative electrode active material and a substrate side react with each other to prevent battery performance from deteriorating, and to a method for manufacturing same. The thin film battery according to the present invention has a structure in which a negative electrode active material contacts a substrate. Here, a first surface treatment layer containing the negative electrode active material and a non-reactive material are disposed on at least the portion where the negative electrode active material contacts the surface of the substrate.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: December 13, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Young Jin Yoon, Jae Hwan Ko
  • Patent number: 9373848
    Abstract: The present invention provides a conductive protective layer-forming paste for current collector laminates which can be used even for high voltage designs to protect current collectors from corroding without loss of cell characteristics, and a current collector laminate, an electrode laminate, and nonaqueous secondary cells (e.g. a lithium secondary cell, an electric double layer capacitor) that include a conductive protective layer formed therefrom. The paste for forming conductive protective layers for current collector protection includes: polytetrafluoroethylene; and a conductive filler (b). The current collector laminate includes: a conductive protective layer (A); and a current collector (B), the conductive protective layer (A) being formed by coating the paste for forming conductive protective layers onto the current collector (B).
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: June 21, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Meiten Koh, Hideo Sakata, Tomoyo Sanagi, Hitomi Nakazawa, Hiroyuki Arima, Toshiki Ichisaka, Kenzou Takahashi
  • Patent number: 9270073
    Abstract: It is an object of the present invention to provide a sheet-shaped three-dimensional network aluminum porous body for a current collector which is suitably used for electrodes for nonaqueous electrolyte batteries and electrodes for capacitors, an electrode and a capacitor each using the same. In such a three-dimensional network aluminum porous body for a current collector, the aluminum porous body has been made to have a compressive strength in a thickness direction of 0.2 MPa or more in order to efficiently fill an active material into the sheet-shaped three-dimensional network aluminum porous body.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: February 23, 2016
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC TOYAMA CO., LTD.
    Inventors: Akihisa Hosoe, Kazuki Okuno, Hajime Ota, Koutarou Kimura, Kengo Goto, Hideaki Sakaida, Junichi Nishimura
  • Patent number: 9153837
    Abstract: A method of manufacturing an energy storage device electrode in which breakage of electrode particles and warping of a collector are reduced, and internal resistance is lowered by lowering the contact resistance between the collector and an electrode layer. The method manufactures an electric double-layer capacitor electrode, and includes: forming a plurality of grooves that run in one direction in each of a front surface and rear surface of a collector foil; subsequently providing an electrode layer that includes plural electrode particles on each of the front surface and rear surface of the collector foil; and subsequently pressing the electrode layer toward the collector foil to move the plurality of electrode particles along the plurality of grooves until the plural electrode particles dig into the plurality of grooves.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: October 6, 2015
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kenro Mitsuda, Kazuki Kubo, Shigeru Aihara, Daigo Takemura
  • Patent number: 9153805
    Abstract: Provided is a cylindrical secondary battery, comprising an electrode assembly having a cathode plate, an anode plate, and a separator interposed therebetween; a case for receiving the electrode assembly; a cap assembly for sealing an open-end of the case; and a gasket interposed between the case and the cap assembly, wherein the gasket is made of a polymer resin having a melting point of 200° C. or higher and a hardness of 100D or less.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: October 6, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Je-Jun Lee, Sung-Jong Kim, Cha-Hun Ku
  • Patent number: 9093707
    Abstract: A lithium metal thin-film battery composite structure is provided that includes a combination of a thin, stable, solid electrolyte layer [18] such as Lipon, designed in use to be in contact with a lithium metal anode layer; and a rapid-deposit solid electrolyte layer [16] such as LiAlF4 in contact with the thin, stable, solid electrolyte layer [18]. Batteries made up of or containing these structures are more efficient to produce than other lithium metal batteries that use only a single solid electrolyte. They are also more resistant to stress and strain than batteries made using layers of only the stable, solid electrolyte materials. Furthermore, lithium anode batteries as disclosed herein are useful as rechargeable batteries.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: July 28, 2015
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Se-Hee Lee, C. Edwin Tracy, John Roland Pitts, Ping Liu
  • Patent number: 9040202
    Abstract: A composite material tape and a lithium secondary battery using the same are provided. The composite material tape includes an organic base and at least one inorganic element dispersed within the organic base. The composite material tapes of the present invention exhibit improved Insulative and heat-resistant characteristics.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: May 26, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Cheon Soo Kim, Hong Sup Lim, Sang Won Lee
  • Publication number: 20150118552
    Abstract: A composite having an electrically conductive substrate and a polymer derived from a vinyl-containing siloxane monomer coating on the substrate. A method of electropolymerizing a vinyl-containing siloxane monomer to form a coating on an electrically conductive substrate.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Applicant: The Government of the United States of America, as represented by the Secrelary of the Navy
    Inventors: Megan B. Sassin, Jeffrey W. Long, Debra R. Rolison
  • Patent number: 9005817
    Abstract: A lithium battery electrode body includes: a collector electrode; and an electrode mixture layer in which a plurality of first particles including electrode active material and a plurality of second particles including solid electrolyte are mixed, wherein the electrode mixture layer is provided on one of sides of the collector electrode, and an average particle size of the plurality of second particles is smaller than an average particle size of the plurality of first particles.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: April 14, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Sukenori Ichikawa
  • Patent number: 8974971
    Abstract: A positive electrode for a rechargeable lithium ion battery includes a mixture layer including a positive-electrode active material, a conducting agent, and a binder and a collector having the mixture layer formed on the surface thereof. The positive-electrode active material is a composite oxide having an olivine structure expressed by a formula LiaMxPO4 (where M represents a transition metal including at least one of Fe and Mn and a and x satisfy 0<a?1.1 and 0.9?x?1.1). The conducting agent includes fibrous carbon. A carbon coating layer is formed on the surface of the collector. A part of the positive-electrode active material and a part of the fibrous carbon enter pits formed in the carbon coating layer.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: March 10, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Toyotaka Yuasa, Mitsuru Kobayashi, Sai Ogawa, Masanari Oda, Kan Kitagawa
  • Patent number: 8951675
    Abstract: The disclosed embodiments provide a battery cell. The battery cell includes a cathode current collector containing graphene, a cathode active material, an electrolyte, an anode active material, and an anode current collector. The graphene may reduce the manufacturing cost and/or increase the energy density of the battery cell.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: February 10, 2015
    Assignee: Apple Inc.
    Inventors: Ramesh C. Bhardwaj, Richard M. Mank
  • Publication number: 20140363742
    Abstract: A battery electrode with a pasting textile, fabric, or scrim made with an electrode grid (e.g., a stamped grid or expanded metal grid) coated in battery electrode and covered with pasting textile formed of a bonded, non-woven fiber web. The web is formed from one or more fibers with an average length greater than 20 ?m. In various embodiments, the web is formed from one or more spun, continuous fibers. The battery electrode may be made in a continuous process where multiple grids are formed in a single sheet, coated with electrode active material and the scrim before being cut into individual electrodes.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Inventors: Dennis A. Wetzel, Ramachandran Subbaraman, Christopher P. Kaniut, William J. Ross, Annette Holbrook, Jerome R. Heiman, Eric A. Sattler, Derrick L. Jennings, Donald Hennessey, JR.
  • Patent number: 8883352
    Abstract: To provide a surface modified lithium-containing composite oxide having excellent discharge capacity, volume capacity density, safety, durability for charge and discharge cycles, and high rate property. A surface modified lithium-containing composite oxide, comprising particles of a lithium-containing composite oxide having a predetermined composition and a lithium titanium composite oxide containing lithium, titanium and element Q (wherein Q is at least one element selected from the group consisting of B, Al, Sc, Y and In) contained in the surface layer of the particles, wherein the lithium titanium composite oxide is contained in the surface layer of the particles in a proportion of the total amount of titanium and element Q in the lithium titanium composite oxide contained in the surface layer to the lithium-containing composite oxide particles is from 0.01 to 2 mol %, and the lithium titanium composite oxide has a peak at a diffraction angle 2? within a range of 43.8±0.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: November 11, 2014
    Assignee: AGC Seimi Chemical Co., Ltd.
    Inventors: Remi Hiraki, Takeshi Kawasato
  • Patent number: 8815452
    Abstract: The present invention relates to one or more electrode plates, which are installed with current collecting terminals at two or more sides thereof, and joined to an auxiliary conductor made of a material having a conductivity that is higher than that of the electrode plates. Current collecting terminals are installed at two or more sides of the auxiliary conductor, for linking with current collecting terminals installed at two or more sides of the electrode plates, and at least one of linked terminals is used as a general current collecting terminal to output current to an external part or to receive input current from the external part. Finally, insulators installed between the auxiliary conductor and the electrode plates to constitute an electrode unit.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: August 26, 2014
    Inventor: Tai-Her Yang
  • Patent number: 8808921
    Abstract: Disclosed are a current collector for a flexible electrode, a method of manufacturing the same, and a negative electrode including the same. The current collector for a flexible electrode includes: a flexible polymer substrate; a cross-linkable polymer layer disposed on the polymer substrate; and a metal layer disposed on the cross-linkable polymer layer, wherein the surface of the cross-linkable polymer layer includes a plurality of protrusions and grooves.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: August 19, 2014
    Assignee: Unist Academy-Industry Research Corporation
    Inventors: Soojin Park, Jae-Phil Cho, Hyun-Kon Song, Jung-In Lee
  • Publication number: 20140193713
    Abstract: Electrochemical cells having desirable electronic and ionic conductivities, and associated systems and methods, are generally described.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 10, 2014
    Applicant: Sion Power Corporation
    Inventors: Karthikeyan Kumaresan, Christopher T.S. Campbell, Bala Sankaran
  • Patent number: 8715861
    Abstract: A bipolar secondary battery is provided with an electric power generating unit, a pair of terminal plates. The electric power generating unit includes a plurality of bipolar electrodes stacked on one another with an electrolyte layer disposed between the bipolar electrodes and separating the bipolar electrodes. Each of the bipolar electrodes includes a collector with a positive electrode active material layer formed on a first side surface of the collector, and a negative electrode active material layer formed on a second side surface of the collector. The first terminal plate is connected to a first stacking direction facing end of the electric power generating unit. The second terminal plate is connected to a second stacking direction facing end of the electric power generating unit. At least one of the terminal plates includes an electric current suppressing device that suppresses an electric current occurring when an internal short circuit occurs in the electric power generating unit.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: May 6, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Sohei Suga, Masanori Aoyagi, Kenji Ohara, Yasuo Ohta, Junji Katamura, Motoharu Obika, Kenji Hosaka, Hideaki Horie, Shigeo Watanabe
  • Patent number: 8679677
    Abstract: The electrochemical device includes a composite electrode. The composite electrode has a working electrode that includes a current collector. A reference electrode is immobilized on the current collector. The reference electrode includes a reference active medium on a reference current collector. The reference current collector is electrically insulated from the current collector. A top surface of the reference electrode is substantially flush with a top surface of the working electrode. The top surface of the reference electrode is a surface of the reference electrode that is substantially parallel to the reference current collector.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: March 25, 2014
    Assignee: Quallion LLC
    Inventors: Ryo Tamaki, Mikito Nagata, Hisashi Tsukamoto
  • Publication number: 20140004401
    Abstract: A battery plate for a lead acid battery includes a grid having a plurality of interconnected wires, an electro-chemically active material paste applied to the grid, at least one reinforcing member disposed in the paste, and the paste is cured. Preferably the reinforcing member is embedded in the active material, provides structural support for the active material and reduces the likelihood that in use the active material paste will shed from the grid.
    Type: Application
    Filed: August 29, 2013
    Publication date: January 2, 2014
    Applicant: WIRTZ MANUFACTURING COMPANY, INC.
    Inventor: John O. Wirtz
  • Patent number: 8609287
    Abstract: Compounds may have general Formula I, II, or III: where R1, R2, R3, and R4 are independently H, F, Cl, Br, CN, NO2, a alkyl group, a haloalkyl group, a phosphate group, a polyether group; or R1 and R2, or R3 and R4, or R2 and R3 (in the case of Formula II) may join together to form a fused ring on the benzene ring; and X and Z are independently a group of Formula A: where R5 and R6 and R7 are independently H, F, Cl, Br, CN, NO2, a alkyl group, a haloalkyl group, a phosphate group, or a polyether group; R7 is H, F, Cl, Br, CN, NO2, a alkyl group, a haloalkyl group, a phosphate group, or a polyether group; n is an integer from 1 to 8; and m is an integer from 1 to 13. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: December 17, 2013
    Assignee: Uchicago Argonne, LLC
    Inventors: Zhengcheng Zhang, Lu Zhang, Khalil Amine
  • Patent number: 8574767
    Abstract: Thin-film electrodes and battery cells, and methods of fabrication. A thin film electrode may be fabricated from a non-metallic, non-conductive porous support structure having pores with micrometer-range diameters. The support may include a polymer film. A first surface of the support is metalized, and the pores are partially metallized to create metal tubes having a thickness within a range of 50 to 150 nanometers, in contact with the metal layer. An active material is disposed within metalized portions of the pores. An electrolyte is disposed within non-metalized portions of the pores. Active materials may be selected to create an anode and a cathode. Non-metalized surfaces of the anode and cathode may be contacted to one another to form a battery cell, with the non-metalized electrolyte-containing portions of the anode facing the electrolyte-containing portions of the cathode pores. A battery cell may be fabricated as, for example, a nickel-zinc battery cell.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: November 5, 2013
    Assignee: The Johns Hopkins University
    Inventors: Rengaswamy Srinivasan, Jeffrey P. Maranchi, Lance M. Baird, Ryan M. Deacon, Arthur S. Francomacaro, Paul J. Biermann, Craig B. Leese, Gary E. Peck
  • Patent number: 8563166
    Abstract: In an electrochemical cell including a cathode 7, an anode 6, electrolyte 10, a hollow container 1 accommodating these members, and terminals extending from the inside to the outside of the hollow container 1, the terminals include a plurality of inner terminals 5a formed on the inner surface of the hollow container 1, a cathode outer terminal 5b1 formed on the outer surface of the hollow container 1, and an inner layer wire 5c formed on the inner layer of the hollow container 1 for commonly connecting the plurality of inner terminals 5a to the cathode outer terminal 5b1.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: October 22, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Hideharu Onodera, Shunji Watanabe, Masaya Kon
  • Patent number: 8551660
    Abstract: The present invention relates to one or more electrode plates, which are installed with current collecting terminals at two or more sides thereof, and joined to an auxiliary conductor made of a material having a conductivity that is higher than that of the electrode plates. Current collecting terminals are installed at two or more sides of the auxiliary conductor, for linking with current collecting terminals installed at two or more sides of the electrode plates, and at least one of linked terminals is used as a general current collecting terminal to output current to an external part or to receive input current from the external part. Finally, insulators installed between the auxiliary conductor and the electrode plates to constitute an electrode unit.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: October 8, 2013
    Inventor: Tai-Her Yang
  • Patent number: 8524395
    Abstract: The present invention relates to nonaqueous electrolyte secondary batteries and durable anode materials and anodes for use in nonaqueous electrolyte secondary batteries. The present invention also relates to methods for producing these anode materials. In the present invention, a metal-semiconductor alloy layer is formed on an anode material by contacting a portion of the anode material with a displacement solution. The displacement solution contains ions of the metal to be deposited and a dissolution component for dissolving a part of the semiconductor in the anode material. When the anode material is contacted with the displacement solution, the dissolution component dissolves a part of the semiconductor in the anode material thereby providing electrons to reduce the metal ions and deposit the metal on the anode material. After deposition, the anode material and metal are annealed to form a uniform metal-semiconductor alloy layer.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: September 3, 2013
    Assignee: Enovix Corporation
    Inventors: Murali Ramasubramanian, Robert Spotnitz
  • Patent number: 8486567
    Abstract: An electrochemical device having an anode electrode, a cathode electrode, and an electrolyte. At least one of the anode electrode and the cathode electrode is provided with a substantially uniform superficial relief pattern formed by a plurality of substantially uniform projections and has an electrical conductivity gradient between peaks of the projections and valleys between the projections.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: July 16, 2013
    Assignee: Gas Technology Institute
    Inventors: Qinbai Fan, Ronald Stanis
  • Patent number: 8450002
    Abstract: Disclosed are an electrode assembly, a method of manufacturing the same, and a secondary battery including the same. The electrode assembly includes a first electrode coated with a first active material, a second electrode coated with a second active material, and a separator between the first and second electrodes. The first and second electrodes and the separator are wound into a jelly-roll. At least one of the first and second electrodes includes a non-coated portion where an active material is not coated on a roll-starting end or a roll-finishing end of the at least one of the first and second electrodes, the non-coated portion is at a region of a side surface of the at least one electrode, and the region having the non-coated portion does not face an electrode having a different polarity from the at least one of the first and second electrodes with the separator therebetween.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: May 28, 2013
    Assignees: Samsung SDI Co., Ltd., Robert Bosch GmbH
    Inventor: Yoontai Kwak
  • Patent number: 8440355
    Abstract: The present invention relates to an equalizing electrode plate with insulated split-flow conductive structure, which is a specifically installed insulated split-flow conductive structure with internal conductive body coated with insulator; one end of the insulated split-flow conductive structure connects to the electric energy input/output terminal of the electrode plate, and another end connects to the electrode plate area farther away from the electric energy input/output terminal and/or with larger impedance in the electrode plate; thus the dedicated insulated split-flow conductive structure connects with the electric energy input/output terminal to specifically transmit the electric energy therebetween.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: May 14, 2013
    Inventor: Tai-Her Yang
  • Patent number: 8431272
    Abstract: An active material including a metal oxide represented by the following formula (1): LixM1aM2bTiOz??(1) where M1 represents at least one element selected from the group consisting of Zr, Ge, Si and Al, M2 represents at least one element selected from the group consisting of Cr, Mn, Fe, Ni and Sn, Ti has an oxidation number of +4, and x, a, b and z satisfy the following requirements: 0.01?x?0.2, 0.005?a?0.1, 0.005?b?0.1 and 2?z?2.5.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: April 30, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomokazu Morita, Norio Takami, Hiroki Inagaki, Yasuhiro Harada
  • Publication number: 20130071729
    Abstract: A method and apparatus for making thin-film batteries having composite multi-layered electrolytes with soft electrolyte between hard electrolyte covering the negative and/or positive electrode, and the resulting batteries. In some embodiments, foil-core cathode sheets each having a cathode material (e.g., LiCoO2) covered by a hard electrolyte on both sides, and foil-core anode sheets having an anode material (e.g., lithium metal) covered by a hard electrolyte on both sides, are laminated using a soft (e.g., polymer gel) electrolyte sandwiched between alternating cathode and anode sheets. A hard glass-like electrolyte layer obtains a smooth hard positive-electrode lithium-metal layer upon charging, but when very thin, have randomly spaced pinholes/defects. When the hard layers are formed on both the positive and negative electrodes, one electrode's dendrite-short-causing defects on are not aligned With the other electrode's defects.
    Type: Application
    Filed: November 13, 2012
    Publication date: March 21, 2013
    Applicant: CYMBET CORPORATION
    Inventor: Cymbet Corporation
  • Patent number: 8389150
    Abstract: Composite current collectors containing coatings of metals, alloys or compounds, selected from the group of Zn, Cd, Hg, Ga, In, Tl, Sn, Pb, As, Sb, Bi and Se on non-metallic, non-conductive or poorly-conductive substrates are disclosed. The composite current collectors can be used in electrochemical cells particularly sealed cells requiring a long storage life. Selected metals, metal alloys or metal compounds are applied to polymer or ceramic substrates by vacuum deposition techniques, extrusion, conductive paints (dispersed as particles in a suitable paint), electroless deposition, cementation; or after suitable metallization by galvanic means (electrodeposition or electrophoresis). Metal compound coatings are reduced to their respective metals by chemical or galvanic means. The current collectors described are particular suitable for use in sealed primary or rechargeable galvanic cells containing mercury-fee and lead-free alkaline zinc electrodes.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: March 5, 2013
    Inventor: Klaus Tomantschger
  • Patent number: 8357469
    Abstract: A bipolar battery construction is disclosed comprising a substrate, openings in the substrate, an electrically conductive material placed within the openings, a negative and positive current collector foil placed on opposing sides of the substrate and negative and positive pasting frame members. The electrically conductive material may have a melting point below the thermal degradation temperature of the substrate.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: January 22, 2013
    Assignee: Advanced Battery Concepts, LLC
    Inventors: Edward Otto Shaffer, II, William Buttfield Brecht
  • Publication number: 20130011742
    Abstract: Disclosed are a current collector for a flexible electrode, a method of manufacturing the same, and a negative electrode including the same. The current collector for a flexible electrode includes: a flexible polymer substrate; a cross-linkable polymer layer disposed on the polymer substrate; and a metal layer disposed on the cross-linkable polymer layer, wherein the surface of the cross-linkable polymer layer includes a plurality of protrusions and grooves.
    Type: Application
    Filed: May 18, 2010
    Publication date: January 10, 2013
    Applicant: UNIST Academy-Industry Research Corporation
    Inventors: Soojin Park, Jae-Phil Cho, Hyun-Kon Song, Jung-In Lee