Active Material In Solution Patents (Class 429/105)
  • Patent number: 10847780
    Abstract: In some embodiments, a battery, a cathode for a battery, and a method for making a cathode and a battery are provided. The method comprises the steps of at least combining an electrode active material, one or more conductive diluents, a binder and a solvent to form an electrode active mixture having a first solvent to powder weight ratio, reducing a solvent to powder weight ratio to form a paste, feeding the paste into a plastic tube; and calendering the plastic tube. A dry cathode mixture is provided. The dry cathode mixture includes a cathode active material, a conductive diluent and a polymeric binder. A solvent is mixed with the dry mixture to form a slurry. Solvent is removed from the slurry to form a doughy composition. The doughy composition is calender sheeted to form a sheet. The sheet is baked at a temperature of 30° C. to 120° C. for 15 minutes to 6 hours to form a dry sheet. The dry sheet is cut into coupons. The coupons are pressed to form a pressed coupon.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: November 24, 2020
    Assignee: Pacesetter, Inc.
    Inventors: Xiaofei Jiang, Russell Bruch, Joseph Beauvais
  • Patent number: 10777811
    Abstract: A liquid catholyte for a Li—S battery comprises a non-aqueous solution of at least one lithium polysulfide of formula Li2Sx (wherein x is selected from 4, 6, and 8) and an anion receptor compound capable of complexing with polysulfide anion. The non-aqueous solution typically is composed of the Li2Sx and the anion receptor compound dissolved in a non-aqueous solvent (e.g., one or more organic ether or fluorinated ether solvents). The anion receptor compound typically is present in the catholyte at a concentration of about 0.1 M to about 4 M. Li—S batteries comprise a metallic lithium anode; a porous conductive substrate; a separator membrane between the anode and the porous conductive substrate; and the liquid catholyte composition within pores of the substrate.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: September 15, 2020
    Inventors: Zhengcheng Zhang, Zheng Xue, Feng Zhao
  • Patent number: 10763536
    Abstract: Embodiments of the claimed invention are directed to a device, comprising: an anode that includes a lithiated silicon-based material and a sulfur-based cathode, wherein the anode and the cathode are designed to have mesoporous structures. In certain embodiments, the sulfur-based cathode is a mesoporous carbon structure comprising sulfur within the mesopores. A further embodiment of the invention is directed to a device comprising a semi-liquid lithium-sulfur battery comprising a lithium anode and a sulfur cathode. In certain embodiments, the sulfur cathode comprises a liquid catholyte, which is housed within a reservoir that is a carbon nanotube sponge. An additional embodiment of the invention is directed to a method for producing a lithiated silicon anode and a sulfur-based cathode.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: September 1, 2020
    Assignee: The Texas A&M University System
    Inventors: Choongho Yu, Xiong Pu
  • Patent number: 10665877
    Abstract: A redox flow battery is illustrated and described, having at least one cell frame enclosing a cell interior and having at least one supply line provided outside the cell frame for supplying electrolyte to the cell interior and/or at least one disposal line provided outside the cell frames for removing electrolyte from the cell interior. In order to provide greater degrees of freedom in the design of the cell so as to make available redox flow batteries with improved properties, it is envisaged that the supply line for supplying electrolyte to the cell interior and/or the disposal line for removing electrolyte from the cell interior is in fluid contact with the cell interior via a plurality of separate flow channels in the cell frame.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: May 26, 2020
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Christian Dotsch, Sascha Berthold, Thorsten Seipp
  • Patent number: 10615432
    Abstract: A cell frame includes a bipolar plate in contact with an electrode constituting a battery cell; and a frame body surrounding a periphery of the bipolar plate, wherein the frame body includes a liquid supply manifold through which an electrolyte is supplied into the battery cell, the bipolar plate includes, in a surface facing the electrode, a plurality of main groove portions that are arranged adjacent to one another and through which the electrolyte flows, at least one of the frame body and the bipolar plate includes a supply flow directing portion configured to distribute, in a direction in which the main groove portions are arranged adjacent to one another, the electrolyte supplied through the liquid supply manifold, to supply the electrolyte to each of the main groove portions, and each of widths Wi of electrolyte inlets of the main groove portions, and a width Wr of the supply flow directing portion in a direction orthogonal to the direction in which the main groove portions are arranged adjacent to one
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: April 7, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Takashi Kanno
  • Patent number: 10522875
    Abstract: An improved lead acid battery (LAB) battery may provide high charge acceptance and may be suitable for a wide range of applications, including a variety of new applications. The new battery can sustain 67% of the maximum capacity even at a very high charging rate of IOC. This battery may decrease the use of lead in comparison to prior lead acid battery designs by up to 50%.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: December 31, 2019
    Inventors: Yan Yao, Yanliang Liang, Saman Gheytani, Yan Jing
  • Patent number: 10522849
    Abstract: The present invention relates to an electrochemical cell having a channel-type flow-electrode unit. The channel-type flow-electrode structure according to the present invention, which has at least two channel-type flow-electrode units, can significantly reduce manufacturing costs and installation space by reducing the number of parts while extending the electrode capacity to be suitable for large-scale plants for electricity generation, energy storage, desalination, etc. In addition, the channel-type flow-electrode structure can be applied not only to a capacitive flow-electrode device and/or a redox flow battery device, but also to all of the devices for electricity generation, energy storage, and desalination while moving ions or protons.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: December 31, 2019
    Inventors: Dong-Kook Kim, Sung-Il Jeon, Ko-Yeon Choo, Younghyun Cho, Jeong-Gu Yeo, Jong-Soo Park, SeungCheol Yang, Ji Yeon Choi, Hong Ran Park, Ki Sook Lee, Young Jik Youn, Jung Hyun Lee, Hee-Yeon Kim
  • Patent number: 10468706
    Abstract: A REDOX flow battery or fuel battery includes a reactant storing and collecting unit for preventing leakage of a reactant. The battery includes two end plates and a stack that is disposed between the end plates and includes one or more unit cells. The reactant storing and collecting unit for preventing leakage of a reactant is disposed inside or outside the stack. According to the present invention, sealing reliability of the REDOX battery or fuel battery is dramatically improved. In addition, although a reactant or a product leaks from the stack, the reactant or the product may not leak to an outside of the battery but is collected before leaking to the outside. Therefore, the battery according to the present invention has an advantage of easy maintenance.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: November 5, 2019
    Inventors: Bu Gi Kim, Da Young Kim
  • Patent number: 10439197
    Abstract: In one example, a system for a flow cell for a flow battery, comprising: a first flow field; and a polymeric frame, comprising: a top face; a bottom face, opposite the top face; a first side; a second side, opposite the first side; a first electrolyte inlet located on the top face and the first side of the polymeric frame; a first electrolyte outlet located on the top face and the second side of the polymeric frame; a first electrolyte inlet flow path located within the polymeric frame and coupled to the first electrolyte inlet; and a first electrolyte outlet flow path located within the polymeric frame and coupled to the first electrolyte outlet. In this way, shunt currents may be minimized by increasing the length and/or reducing the cross-sectional area of the electrolyte inlet and electrolyte outlet flow paths.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: October 8, 2019
    Assignee: ESS Tech, Inc.
    Inventors: Craig Evans, Yang Song
  • Patent number: 10424804
    Abstract: The Ce—H2 redox flow cell is optimized using commercially-available cell materials. Cell performance is found to be sensitive to the upper charge cutoff voltage, membrane boiling pretreatment, methanesulfonic-acid concentration, (+) electrode surface area and flow pattern, and operating temperature. Performance is relatively insensitive to membrane thickness, Cerium concentration, and all features of the (?) electrode including hydrogen flow. Cell performance appears to be limited by mass transport and kinetics in the cerium (+) electrode. Maximum discharge power of 895 mW cm?2 was observed at 60° C.; an energy efficiency of 90% was achieved at 50° C. The Ce—H2 cell is promising for energy storage assuming one can optimize Ce reaction kinetics and electrolyte.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: September 24, 2019
    Assignee: The Regents of the University of California
    Inventors: Michael C. Tucker, Adam Z. Weber
  • Patent number: 10411284
    Abstract: The invention discloses general apparatus and methods for electrochemical energy conversion and storage via a membraneless laminar flow battery. In a preferred embodiment, the battery includes a flow-through porous anode for receiving a fuel and a porous electrolyte channel for transporting an electrolyte adjacent to the porous anode; a flow-through porous cathode is provided for transporting an oxidant; and a porous dispersion blocker is disposed between the electrolyte channel and the porous cathode, which inhibits convective mixing while allowing molecular diffusion and mean flow. Pore structure properties are selected for tuning convective dispersion, conductivity or other macroscopic properties. Specific materials, reactants, fabrication methods, and operation methods are disclosed to achieve stable charge/discharge cycles and to optimize power density and energy density.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: September 10, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Martin Z. Bazant, William Allan Braff, Cullen Richard Buie, Matthew Suss, Laura M. Gilson, Kameron Conforti
  • Patent number: 10376841
    Abstract: A fluid pumping system may include an electroosmotic pump; and a separation member provided at least one end of the electroosmotic pump, and configured to separate the fluid and a transfer target fluid. The electroosmotic pump may include: a membrane that allows a fluid to move therethrough; and a first electrode and a second electrode which are respectively provided at two opposite sides of the membrane, and each of which is formed of a porous material or has a porous structure to allow a fluid to move therethrough; each of the first electrode and the second electrode may be made of porous carbon only; and an electrochemical reaction of the first electrode and the second electrode may take place as a cation is moved in a direction whereby a charge balance is established.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: August 13, 2019
    Inventors: Woonsup Shin, Enhua Zhu
  • Patent number: 10367221
    Abstract: An energy storage system reaction cell configured for distribution throughout a transport system. The length of the reaction cell is substantially greater than its width and is looped throughout the transport system in a serpentine configuration. A membrane within the reaction cell has a length substantially equal to the length of the reaction cell such that surface area of the membrane is maximized relative to volume of the reaction cell to increase electrical power provided to an electrical load of the transport system.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: July 30, 2019
    Assignee: The Curators of the University of Missouri
    Inventors: Jonghyun Park, Mohammed Al-Yasiri
  • Patent number: 10312523
    Abstract: A lithium ion secondary battery includes: a positive electrode including a positive electrode active material layer; a negative electrode; and an electrolyte. The positive electrode active material layer contains Lia(M)b(PO4)c (M=VO or V, 0.9?a?3.3, 0.9?b?2.2, 0.9?c?3.3) as a first positive electrode active material, and additionally contains a fluorine compound of 1 to 300 ppm in terms of fluorine with respect to a weight of the positive electrode active material layer.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: June 4, 2019
    Inventors: Atsushi Sano, Keitaro Otsuki
  • Patent number: 10294422
    Abstract: This invention in general relates to a transparent conductive layer comprising a silver nanowire. This invention further relates to an etching composition suitable for etching a transparent conductive layer comprising a silver nanowire to form a pattern. This invention further relates to a transparent conductive electrode manufactured by etching a transparent conductive film comprising a silver nanowire. The etching composition may comprise an oxidizing agent and a ligand. The oxidizing agent may be a first chemical compound that can react with silver metal to form a silver compound; and the ligand may be a second chemical compound that can react with the silver compound to form a water soluble coordination complex of the silver ion.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: May 21, 2019
    Inventor: Hailiang Wang
  • Patent number: 10297828
    Abstract: To provide a non-aqueous electrolyte storage element including a positive electrode including a positive-electrode active material capable of inserting and eliminating anions, a negative electrode including a negative-electrode active material, and a non-aqueous electrolyte, wherein the positive-electrode active material includes a carbon material which has a plurality of pores constituting a three-dimensional network structure and has a solid electrolyte interface (SEI) material on a surface of the carbon material.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: May 21, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yuka Araki, Naoto Abe, Yoshio Itoh, Tatsuya Dan, Shuhei Takeshita
  • Patent number: 10259707
    Abstract: Exemplary embodiments of methods and systems for hydrogen production using an electro-activated material are provided. In some exemplary embodiments, carbon can be electro-activated and used in a chemical reaction with water and a fuel, such as aluminum, to generate hydrogen. Controlling the temperature of the reaction, and the amounts of water, aluminum and electro-activated carbon can provide hydrogen on demand at a desired rate of hydrogen generation.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: April 16, 2019
    Inventor: Douglas Howard Phillips
  • Patent number: 10236513
    Abstract: A rechargeable battery cell has an organic-liquid electrolyte contacting a dendrite free alkali-metal anode. The alkali-metal anode may be a liquid at the operating temperature that is immobilized by absorption into a porous membrane. The alkali-metal anode may be a solid that wets a porous-membrane separator, where the contact between the solid alkali-metal anode and the liquid electrolyte is at micropores or nanopores in the porous-membrane separator. The use of a dendrite-free solid lithium cell was demonstrated in a symmetric cell with a porous cellulose-based separator membrane. A K+-ion rechargeable cell was demonstrated with a liquid K—Na alloy anode immobilized in a porous carbon membrane using an organic-liquid electrolyte with a Celgard® or glass-fiber separator.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: March 19, 2019
    Assignee: Board of Regents, The University of Texas System
    Inventors: John B. Goodenough, Leigang Xue, Byoungchul You
  • Patent number: 10147969
    Abstract: An electrolytic: solution for electrochemical devices includes: a salt consisting of a bifluoride anion and a cation; a compound containing boron; and an organic solvent.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: December 4, 2018
    Inventors: Satoshi Shibutani, Takeshi Abe, Zempachi Ogumi
  • Patent number: 10033053
    Abstract: A flow battery includes a cell, a bipolar plate which is in contact with one of a positive electrode and a negative electrode constituting the cell, a current collector plate which has a terminal portion that is led out to the outside of the cell and is electrically connected to the bipolar plate, and a supply/discharge plate which is stacked on the current collector plate and supplies and discharges electrolytes to and from the cell. When the side of the supply/discharge plate facing the current collector plate is regarded as a front surface and the side opposite thereto is regarded as a back surface, the supply/discharge plate has an insertion hole which passes between the front surface and the back surface thereof and into which the terminal portion is inserted, and the terminal portion passes through the insertion hole and extends from the front surface side to the back surface side of the supply/discharge plate to be led out.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: July 24, 2018
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Hiroyuki Nakaishi
  • Patent number: 10014545
    Abstract: The present disclosure relate to a method for operating a redox flow battery, which includes the steps of discharging the redox flow battery having an anode electrolyte and a cathode electrolyte when a volume difference between the anode electrolyte and the cathode electrolyte is within 20% of a total volume of the anode electrolyte and the cathode electrolyte, while maintaining an open circuit voltage of lower than 1.3 V/cell, and moving the anode electrolyte and/or the cathode electrolyte so that the volume difference is 2% or less between the anode electrolyte and the cathode electrolyte in the redox flow battery after the discharging.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: July 3, 2018
    Inventors: Eun-Mi Choi, Dae-Sik Kim, Mi-Kyoung Kim
  • Patent number: 9966626
    Abstract: The present invention relates to a redox flow battery, and more particularly, to a redox flow battery which is charged and discharged by supplying a positive electrolyte and a negative electrolyte to a battery cell using an active material containing vanadium and a cation exchange membrane, in which the positive electrolyte and the negative electrolyte contain vanadium ions as active ions, the difference in volume between the positive electrolyte and the negative electrolyte is maintained at 10% or less, and the total concentration of anions in the negative electrolyte is higher than the total concentration of anions in the positive electrolyte, whereby the transfer of water in the battery is controlled and a change in the volume of the electrolytes is minimized.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: May 8, 2018
    Assignee: OCI COMPANY LTD.
    Inventors: Ji-Eun Hong, Seung-Yoen Lee, Soo-Whan Kim, Hee-Chang Ye, Byung-Chul Kim
  • Patent number: 9960444
    Abstract: A semi-vanadium(V) redox flow battery (semi-VRFB) including a positive electrolyte tank, a negative electrolyte tank and a cell stack. The positive electrolyte tank is stored with a positive electrolyte of V ions and the negative electrolyte tank is stored with a negative electrolyte of iodine(I)-vitamin C. The cell stack comprises a positive electrode, a negative electrode, an insulating film, a positive electrode plate, and a negative electrode plate. The negative electrode is made of carbon (C) sandwiched with titanium dioxide(TiO2), and can further comprise a metal or an alloy. The insulating film is located between the positive electrode and the negative electrode. The positive and negative electrode plates are located in front of the positive and negative electrodes, respectively. The positive and negative electrolytes flow through the positive and negative electrode plates to charge/discharge power by the electrochemical reactions of V ions and I-vitamin C at the positive and negative electrodes.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: May 1, 2018
    Inventors: Chin-Lung Hsieh, Shu-Ling Huang, Tz-Jiun Tsai, Ming-Wei Hsueh, Mei-Ling Chen
  • Patent number: 9917323
    Abstract: A redox flow battery is provided having a double-membrane (one cation exchange membrane and one anion exchange membrane), triple-electrolyte (one electrolyte in contact with the negative electrode, one electrolyte in contact with the positive electrode, and one electrolyte positioned between and in contact with the two membranes). The cation exchange membrane is used to separate the negative or positive electrolyte and the middle electrolyte, and the anion exchange membrane is used to separate the middle electrolyte and the positive or negative electrolyte. This design physically isolates, but ionically connects, the negative electrolyte and positive electrolyte. The physical isolation offers great freedom in choosing redox pairs in the negative electrolyte and positive electrolyte, making high voltage of redox flow batteries possible. The ionic conduction drastically reduces the overall ionic crossover between negative electrolyte and positive one, leading to high columbic efficiency.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: March 13, 2018
    Assignee: University of Delaware
    Inventors: Yushan Yan, Shuang Gu, Ke Gong
  • Patent number: 9905874
    Abstract: The invention relates to the use of 1-alkyl-2-alkyl pyridinium halide (e.g., 1-ethyl-2-methyl pyridinium bromide), 1-alkyl-3-alkyl pyridinium halide (e.g., 1-ethyl-3-methyl pyridinium bromide) or 1-alkyl-3-alkyl imidazolium halide (e.g., 1-butyl 3-methyl imidazolium bromide) as additives in an electrolyte used in hydrogen/bromine cells, for complexing the elemental bromine formed in such cells. The invention also provides an electrolyte comprising aqueous hydrogen bromide and said additives, and processes for operating an electrochemical flow cell selected from the group consisting of hydrogen/bromine or vanadium/bromine cells.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: February 27, 2018
    Inventors: Ben-Zion Magnes, Eli Lancry, Mira Bergstein-Freiberg, David Itzhak, Yasmin Herscovitz-Levy, Vered Atiya-Zuckerman
  • Patent number: 9882177
    Abstract: The invention relates to an energy storage module for a device for supplying voltage, in particular, of a motor vehicle, comprising a plurality of in particular prismatic storage cells, which are stacked together at least in one row, are arranged one behind the other and are braced between at least two end plates by means of at least one tie rod or a wrapping, wherein at least one of the end plates comprises a layer structure of at least three layers and/or the tie rod consists of a fiber composite material.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: January 30, 2018
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Markus Thurmeier, Hubertus Goesmann, Robert Lustig, Eva Vietze, Stephan Zuegner
  • Patent number: 9865893
    Abstract: This invention is directed to aqueous redox flow batteries comprising ionically charged redox active materials and separators, wherein the separator is about 100 microns or less and the flow battery is capable of (a) operating with a current efficiency of at least 85% with a current density of at least about 100 mA/cm2; (b) operating with a round trip voltage efficiency of at least 60% with a current density of at least about 100 mA/cm2; and/or (c) giving rise to diffusion rates through the separator for the first active material, the second active material, or both, of about 1×10?7 mol/cm2-sec or less.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: January 9, 2018
    Assignee: Lockheed Martin Advanced Energy Storage, LLC
    Inventors: Arthur J. Esswein, Steven Y. Reece, Thomas H. Madden, Thomas D. Jarvi, John Goeltz, Desiree Amadeo, Evan R. King, Nitin Tyagi
  • Patent number: 9853306
    Abstract: An energy storage system includes a vanadium redox battery that interfaces with a control system to optimize performance and efficiency. The control system calculates optimal pump speeds, electrolyte temperature ranges, and charge and discharge rates. The control system instructs the vanadium redox battery to operate in accordance with the prescribed parameters. The control system further calculates optimal temperature ranges and charge and discharge rates for the vanadium redox battery.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: December 26, 2017
    Assignee: JD Holding Inc.
    Inventor: Timothy David John Hennessy
  • Patent number: 9812883
    Abstract: Described herein are redox flow batteries comprising a first aqueous electrolyte comprising a first type of redox active material and a second aqueous electrolyte comprising a second type of redox active material. The first type of redox active material may comprise one or more types of quinoxalines, or salts thereof. Methods for storing and releasing energy utilizing the described redox flow batteries are also provided.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: November 7, 2017
    Assignees: Massachusetts Institute of Technology, UChicago Argonne, LLC
    Inventors: Fikile Richard Brushett, Andrew Norbert Jansen, John Thomas Vaughey, Liang Su, Jarrod D. Milshtein
  • Patent number: 9786925
    Abstract: A fuel cell comprised of a proton conductive electrolyte film sandwiched between a pair of catalyst layers, wherein the catalyst layer of at least the cathode is comprised of a mixture including a catalyst ingredient, an electrolytic material, and a carbon material, the carbon material is comprised of a catalyst-carrying carbon material carrying the catalyst ingredient and a gas-diffusing carbon material not carrying the catalyst ingredient, and the catalyst-carrying carbon material has an amount of adsorption of water vapor at 25° C. and a relative humidity of 90% of 50 ml/g or more.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: October 10, 2017
    Inventors: Kenichiro Tadokoro, Takashi Iijima, Hiroshi Kajiro, Hideaki Sawada, Yoichi Matsuzaki
  • Patent number: 9748595
    Abstract: Improved metal-based redox flow batteries (RFBs) can utilize a metal and a divalent cation of the metal (M2+) as an active redox couple for a first electrode and electrolyte, respectively, in a first half-cell. For example, the metal can be Zn. The RFBs can also utilize a second electrolyte having I?, anions of Ix (for x?3), or both in an aqueous solution, wherein the I? and the anions of Ix (for x?3) compose an active redox couple in a second half-cell.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: August 29, 2017
    Assignee: Battelle Memorial Institute
    Inventors: Bin Li, Zimin Nie, Wei Wang, Jun Liu, Vincent L. Sprenkle
  • Patent number: 9742048
    Abstract: The invention provides a metal-air battery in which a metallic electrode can be smoothly inserted into a metal-air battery main body. The metal-air battery of the invention includes at least one cell. The cell includes an electrolytic tank that stores an electrolytic solution, a metallic electrode that is provided in the electrolytic tank and serves as an anode, at least one air electrode that serves as a cathode, an electrode insertion opening through which the metallic electrode is inserted into the electrolytic tank, and a position adjustment section. The position adjustment section is provided to adjust a position of the metallic electrode through contact between the metallic electrode and the position adjustment section during insertion of the metallic electrode into the electrolytic tank.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: August 22, 2017
    Inventors: Akihito Yoshida, Hirotaka Mizuhata, Masaki Kaga, Tomoharu Arai
  • Patent number: 9735433
    Abstract: The present invention relates to a fuel cell exhibiting a high performance regardless of the humidification conditions.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: August 15, 2017
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Kenichiro Tadokoro, Kazumi Mizukami, Takashi Iijima, Hideaki Sawada, Tomohiro Hada
  • Patent number: 9722281
    Abstract: The invention relates to the use of at least one 1-alkyl-3-alkyl-pyridinium halide, in particular 1-alkyl-3-methyl-pyridinium bromide, as an additive in bromine-generating electrochemical cells, such as zinc/bromine cells. Processes for preparing 1-alkyl-3-methyl-pyridinium bromide and concentrated aqueous solutions comprising same for use as additives in the aforementioned cells, are also disclosed.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: August 1, 2017
    Inventors: Ben-Zion Magnes, Iris Ben David, Eli Lancry, Mira Bergstein-Freiberg, Nirit Zer-Zion
  • Patent number: 9680174
    Abstract: A novel multi cell stack architecture has specific features allowing deployment of simple electrical instrumentation of data collection/monitoring of crucial hydraulic, electrical and electrochemical quantities, on the basis of which the operator or electronic controller is able to gather/process critical information of such a depth and enhanced reliability, for immediately identifying any cell in “state of sufferance” and eventually to exclude it from the system and possibly substitute it with a spare cell. A method of monitoring/controlling the operation of an all-vanadium redox flow battery system is also disclosed.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: June 13, 2017
    Inventors: Placido Maria Spaziante, Michael Dichand
  • Patent number: 9543609
    Abstract: The present invention combines the storage capacity of redox flow batteries and the production of hydrogen and other products of chemical redox reactions. The redox couple of each electrolyte is chemically regenerated on a specific catalyst bed 11, replacing the discharging processes of the battery, while oxidizing or reducing other species present. This allows for the production of hydrogen on the cathodic side, and various useful products on the anodic side, such as oxygen for fuel cell application. The proposed system uses a dual circuit arrangement from which electrolytes 8 may be pumped through the catalyst beds 11 as desired, once they are in their charged state.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: January 10, 2017
    Assignee: EOS Holding SA
    Inventors: Veronique Amstutz, Kathryn Ellen Toghill, Christos Comninellis, Hubert Hugues Girault
  • Patent number: 9515307
    Abstract: Disclosed is a separator for a battery. The separator includes a porous film, a first roller, and a second roller. The first and second rollers are associated with both ends of a porous film. The first roller is wound with a portion of the porous film and is configured to rotate to unroll the film. The second roller is configured to rotate in an opposite direction to a rotary direction of the first roller to roll up the film.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: December 6, 2016
    Inventor: Chun Shig Sohn
  • Patent number: 9490496
    Abstract: A flow battery reservoir includes a reservoir housing, an electrolyte inlet configured to provide an electrolyte mixture containing a liquid metal-halide electrolyte solution and a complexed halogen phase at or toward a stagnant zone in a lower portion of the reservoir, and an electrolyte outlet configured to outlet the liquid metal-halide solution from the reservoir. The electrolyte outlet is positioned such that in use the liquid metal-halide solution flows upward against the force of gravity to reach the electrolyte outlet while the complexed halogen phase settles in the stagnant zone.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: November 8, 2016
    Inventors: Peter Tennessen, Jonathan Hall, Russell Cole, Paul Kreiner
  • Patent number: 9484577
    Abstract: Provided are a positive electrode material for lithium ion batteries and a process for preparing the same. The positive electrode material for lithium ion batteries comprises a composite positive electrode material consists of LiCoO2 and an auxiliary positive electrode material, the general formula of the auxiliary positive electrode material is LiCo1-x-yNixMnyO2, wherein 0<x<0.9, 0<y<0.9, 0<x+y<0.9, and the LiCoO2 is a modified LiCoO2 coated with an Al2O3 film. The overcharge performance of the batteries can be significantly increased and the use amount of the overcharge additive can be reduced by using the positive electrode material so as to its improve the cycle performance of the batteries and improve the anti-overcharge safety in the special applications and the charging conditions.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: November 1, 2016
    Assignee: Shenzhen Bak Battery Co., LTD.
    Inventors: Xin Teng, Wei He, Ming He, Ruyu Rao, Bin Xiao, Qiming Pan
  • Patent number: 9406961
    Abstract: According to the method for preparing an electrolyte for a vanadium redox flow battery, one electrolyte can be used as both the positive electrolyte and the negative electrolyte, by preparing an electrolyte having a median oxidation number of electrolytes used for the positive electrode and the negative electrode of the vanadium redox flow battery. Particularly, since the mixed electrolyte having the median oxidation number is separated into the same amounts of positive electrolyte and the negative electrolyte at the time of charging and discharging, the maximum charging and discharging effect based on the supplied capacitance can be obtained.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: August 2, 2016
    Assignee: NEW WELL CO., LTD.
    Inventors: Bu Gi Kim, Seung Joo Lee
  • Patent number: 9406962
    Abstract: A device is provided for detecting a charging and discharging status of a flow-cell pack. During charging and discharging course of the flow-cell pack coordinated with electrolyte storage tanks and actuators, ultrasonic sensors of ultrasonic detection devices are used to sense sonic vibration generated by fluid flow in the flow-cell pack. Thus, the charging and discharging status of the flow-cell pack is detected for adjusting related parameters. The present invention has a simple structure, runs without using extra power supply, does not hinder performance of flow cell, and obtains charging and discharging status of flow cell accurately and rapidly.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: August 2, 2016
    Inventors: Ying Sheng Lee, Ning-Yih Hsu, Kuan-Hsiang Chen, Hwa-Jou Wei
  • Patent number: 9362582
    Abstract: A flow-field plate for a flow stack in a flow cell battery system is described. The flow-field plate includes first electrolyte channels formed in a molded plate to direct a first electrolyte to a first flow-field on a first side of the molded plate and second electrolyte channels formed in the molded plate to direct a second electrolyte to a second flow-field on the second side of the molded plate.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: June 7, 2016
    Inventors: Jennifer Brantley, Reinder J. Boersma, Derek Kwok
  • Patent number: 9276282
    Abstract: A polymer ion exchange membrane for acidic electrolyte flow battery. The membrane is nitrogen heterocycles aromatic polymer, especially polybenzimidazole type polymer. A nitrogen heterocycles in the membrane interact with acid in the electrolyte to form donor-receptor proton transport network, so as to keep the proton transport performance of the membrane. The preparation condition for the membrane is mild, and the process is simplicity. The preparation method is suitable for mass production. The membrane is used in acidic electrolyte flow battery, especially in vanadium flow energy storage battery. The membrane has excellent mechanical stability and thermostability. In vanadium redox flow battery, the membrane has excellent proton conduct performance and excellent resistance to the permeation of vanadium ions.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: March 1, 2016
    Inventors: Huamin Zhang, Xianfeng Li, Hua Dai, Cheng Bi
  • Patent number: 9236620
    Abstract: Composite separators having a porous structure and including acid-stable, hydrophilic, inorganic particles enmeshed in a substantially fully fluorinated polyolefin matrix can be utilized in a number of applications. The inorganic particles can provide hydrophilic characteristics. The pores of the separator result in good selectivity and electrical conductivity. The fluorinated polymeric backbone can result in high chemical stability. Accordingly, one application of the composite separators is in redox flow batteries as low cost membranes. In such applications, the composite separator can also enable additional property-enhancing features compared to ion-exchange membranes. For example, simple capacity control can be achieved through hydraulic pressure by balancing the volumes of electrolyte on each side of the separator.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: January 12, 2016
    Assignee: Battelle Memorial Institute
    Inventors: Bin Li, Xiaoliang Wei, Qingtao Luo, Zimin Nie, Wei Wang, Vincent L. Sprenkle
  • Patent number: 9231256
    Abstract: The traditional method of pressing CFx, screen and SVO sheet assembly results in an electrode that is cupped and not flat. This results in the reduction of the effective volumetric energy density of the electrode or the addition of a process step of flattening of the cathode if at all possible. The new method of assembly effectively eliminates the cupping behavior and produces a flat electrode. In addition, the physical density of the cathode is also increased.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: January 5, 2016
    Assignee: Greatbatch Ltd.
    Inventors: Ashish Shah, Robert Rubino, Hong Gan
  • Patent number: 9216652
    Abstract: A redox flow battery includes a positive electrode electrolyte and a negative electrode electrolyte, each of which includes a metal-ligand coordination complex, in which a metal of a metal-ligand coordination complex of the positive electrode electrolyte is different from a metal of a metal-ligand coordination complex of the negative electrode electrolyte. Due to use of different metals in the positive and negative electrode electrolytes, the redox flow battery has high energy density and high charge and discharge efficiency.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: December 22, 2015
    Inventors: Myung Jin Lee, Doo-yeon Lee, Duk-jin Oh, Joung-won Park, Seung-sik Hwang
  • Patent number: 9160020
    Abstract: An electrode structure 15 is received in a joint portion of frames 13, 14. A first gas diffusion layer 19 and a first gas passage forming member 21 are arranged on a first surface of the electrode structure 15. A second gas diffusion layer 20 and a second gas passage forming member 22 are formed on a second surface of the electrode structure 15. A separator 23 is joined with a surface of the frame 13 and a surface of the gas passage forming member 21. A separator 24 is joined with a surface of the frame 14 and a surface of the gas passage forming member 22. A water passage 28 is formed between a flat plate 25 of the gas passage forming member 22 and the separator 24. The water passage 28 has a depth set to a value smaller than depth of a gas passage T2 of the gas passage forming member 22. Generated water is introduced from the gas passage T2 of the gas passage forming member 22 to the water passage 28 through capillary action via communication holes 29.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: October 13, 2015
    Assignees: Toyota Shatai Kabushiki Kaisha, Toyota Jidosha Kabushiki Kiasha
    Inventors: Kousuke Kawajiri, Keiji Hashimoto, Satoshi Futami, Takamasa Kanie, Kazunari Moteki, Tomokazu Hayashi
  • Patent number: 9130219
    Abstract: A method of forming a redox couple bed for a solid oxide redox flow battery is described. The method includes mixing together carbon and metal oxide. The method further includes heating the mixture while feeding an inert gas into the mixture, the inert gas removing gas products CO and CO2. The metal oxide is reduced to a metal resulting in formation of a redox couple bed.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: September 8, 2015
    Assignee: University of South Carolina
    Inventors: Kevin Huang, Xue Li
  • Patent number: 9123962
    Abstract: A flow battery includes an electrode operable to be wet by a solution having a reversible redox couple reactant. In one embodiment, the electrode can have plurality of micro and macro pores, wherein the macro pores have a size at least one order of magnitude greater than a size of the micro pores. In another embodiment, the electrode includes a plurality of layers, wherein one of the plurality of layers has a plurality of macro pores, and wherein another one of the plurality of layers has a plurality of micro pores. In another embodiment, the electrode has a thickness less than approximately 2 mm. In still another embodiment, the electrode has a porous carbon layer, wherein the layer is formed of a plurality of particles bound together.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: September 1, 2015
    Assignee: United Technologies Corporation
    Inventors: Rachid Zaffou, Michael L. Perry, Arun Pandy, Sergei F. Burlatsky, Vadim Atrazhev
  • Publication number: 20150147620
    Abstract: A redox flow battery including: a cathode cell including a cathode, a catholyte, and a bipolar plate; an anode cell including an anode, an anolyte, and a bipolar plate; and an ion exchange membrane interposed between the cathode cell and the anode cell, wherein at least one of the cathode and the anode comprises a carbon-coated metal foam, wherein the ion exchange membrane includes a porous substrate and a polymer disposed in pores of the porous substrate, wherein the polymer is a polymerization product of a composition for preparing an ion exchange membrane, and wherein the composition for preparing an ion exchange membrane includes a first aromatic vinyl monomer including a halogenated alkyl group or a quaternary ammonium group, and wherein the bipolar plate includes Ni, Cu, Fe, Cr, Al, W, Ti, or a mixture thereof, or an alloy thereof.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Inventors: Dooyeon Lee, Kijae Kim, Dukjin Oh, Jiyoung Jeong