With Fused Electrolyte, I.e., Molten Patents (Class 429/103)
  • Patent number: 10840547
    Abstract: Nanofilm-encapsulated sulfide glass solid electrolyte structures and methods for making the encapsulated glass structures involve a lithium ion conducting sulfide glass sheet encapsulated on its opposing major surfaces by a continuous and conformal nanofilm made by atomic layer deposition (ALD). During manufacture, the reactive surfaces of the sulfide glass sheet are protected from deleterious reaction with ambient moisture, and the nanofilm can be configured to provide additional performance advantages, including enhanced mechanical strength and improved chemical resistance.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: November 17, 2020
    Assignee: POLYPLUS BATTERY COMPANY
    Inventors: Steven J. Visco, Vitaliy Nimon, Yevgeniy S. Nimon, Bruce D. Katz
  • Patent number: 10593993
    Abstract: An object of the present invention is to reduce the gelation of a positive electrode mixture and to reduce an increase in the resistance of a positive electrode of a sodium ion secondary battery. The invention relates to a sodium ion secondary battery including a positive electrode, a negative electrode, a separator disposed between the positive and negative electrodes, and a sodium-ion-conducting nonaqueous electrolyte. The positive electrode contains positive electrode active material particles, a conductive additive, and a binder. Each positive electrode active material particle includes an oxide particle that absorbs and releases sodium ions and a covering layer covering the oxide particle. The oxide particle contains an oxide A containing Ni and Mn. The covering layer contains at least one material B selected from the group consisting of a ceramic and a carbonaceous material. The binder contains a fluorocarbon resin.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: March 17, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Shoichiro Sakai, Atsushi Fukunaga, Koji Nitta
  • Patent number: 10547049
    Abstract: A method for producing an electrode assembly which includes a first step of forming a molded body that contains an active material, a second step of dipping the molded body in a melt of a solid electrolyte in a first atmosphere, thereby impregnating the melt into voids inside the molded body; and a third step of cooling the molded body impregnated with the melt by moving the molded body to a second atmosphere whose temperature is lower than that of the first atmosphere, thereby combining the molded body with the solid electrolyte.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: January 28, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Daisuke Nagano
  • Patent number: 10468668
    Abstract: Disclosed herein are compositions and methods of making such compositions, for making lithium-containing anodes and cathodes. Disclosed are batteries comprising such anodes and/or cathodes, and uses for such batteries. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: November 5, 2019
    Assignees: Binergy Scientific, Inc., Georgia Tech Research Corporation
    Inventors: Vojtech Svoboda, Gleb Yushin
  • Patent number: 10411259
    Abstract: A method of producing a positive electrode composition for a non-aqueous secondary battery is provided. The method includes heat-treating titanium boride particles at a temperature in a range of 150° C. to 300° C. under an oxygen-containing atmosphere to obtain heat-treated particles and mixing the heat-treated particles with a positive electrode active material comprising lithium transition metal complex oxide particles that comprise nickel in a composition and have a layered structure such that a content of the heat-treated particles relative to the lithium transition metal complex oxide particles is less than or equal to 1.5 mol % in titanium equivalent terms.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: September 10, 2019
    Assignee: NICHIA CORPORATION
    Inventor: Keisuke Fujihara
  • Patent number: 10396404
    Abstract: An electrochemical cell includes a negative electrode having a first liquid phase having a first active metal, a positive electrode having a second liquid phase having a second active metal, and a liquid electrolyte having a salt of the first active metal and a salt of the second active metal. The electrochemical cell also includes a bipolar faradaic membrane, disposed between the negative electrode and the positive electrode, having a first surface facing the negative electrode and a second surface facing the positive electrode. The bipolar faradaic membrane is configured to allow cations of the first active metal to pass through and to impede cations of the second active metal from transferring from the positive electrode to the negative electrode and is at least partially formed from a material having an electronic conductivity sufficient to drive faradaic reactions at the second surface with the cations of the positive electrode.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: August 27, 2019
    Assignees: Massachusetts Institute of Technology, Total S.A., Total Energies Nouvelles Activites USA
    Inventors: Huayi Yin, Fei Chen, Brice Hoani Valentin Chung, Takanari Ouchi, Donald Robert Sadoway
  • Patent number: 10396352
    Abstract: Provided are a non-aqueous electrolyte battery and a non-aqueous electrolyte battery system that can be repeatedly charged and that have good storage characteristics in a high-temperature environment. A non-aqueous electrolyte battery of the present invention includes an electrode body in which a positive electrode and a negative electrode are laminated with a separator interposed therebetween, and a non-aqueous electrolyte. The negative electrode has a laminated body including a metal base layer that does not form an alloy with Li, and Al active layers respectively bonded to both faces of the metal base layer, or a laminated body including a metal base layer that is made of a metal selected from Ni, Ti, and Fe, or an alloy thereof, and an Al active layer bonded to the metal base layer. A Li—Al alloy is formed at least on a surface side of each Al active layer.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: August 27, 2019
    Assignee: Maxell Holdings, Ltd.
    Inventors: Atsushi Hatakeyama, Yasunori Masaoka, Yoshihisa Hirose
  • Patent number: 10340531
    Abstract: An alloy includes lithium, silicon and tin. An anode may be formed of an anode material containing the alloy of lithium, silicon and tin. The anode material may include an electrolyte. The anode material may be a pressed powder pellet that is solid at ambient temperature. A battery, for example, a thermal battery, can contain an electrolyte-separator, a cathode, and/or an anode with the alloy of lithium, tin and silicon. The anode formed of the alloy consisting of lithium, tin and silicon can have a melting point from about 500° C. to about 600° C. or higher making it suitable for use in a thermal battery.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: July 2, 2019
    Assignee: EaglePicher Technologies LLC
    Inventor: Geoffrey Swift
  • Patent number: 10297870
    Abstract: The present disclosure provides an energy storage device comprising at least one electrochemical cell comprising a negative current collector, a negative electrode in electrical communication with the negative current collector, an electrolyte in electrical communication with the negative electrode, a positive electrode in electrical communication with the electrolyte and a positive current collector in electrical communication with the positive electrode. The negative electrode comprises an alkali metal. Upon discharge, the electrolyte provides charged species of the alkali metal. The positive electrode can include a Group IIIA, IVA, VA and VIA of the periodic table of the elements, or a transition metal (e.g., Group 12 element).
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: May 21, 2019
    Assignee: AMBRI INC.
    Inventors: David J. Bradwell, Xingwen Yu, Greg A. Thompson, Jianyi Cui, Alex Elliott, Chia-Ying Lee, Denis Tite
  • Patent number: 10218034
    Abstract: Provided are an electrolyte for a sodium secondary battery and a sodium secondary battery using the same. More particularly, the sodium secondary battery includes an anode containing sodium, a cathode containing a transition metal, and a sodium ion conductive solid electrolyte provided between the anode and the cathode, wherein the cathode is impregnated in an electrolyte containing a molten sodium salt and an electrolyte additive, the electrolyte additive including an inorganic sodium salt.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: February 26, 2019
    Assignees: SK INNOVATION CO., LTD., UNIST (ULSAN NATIONAL INSTITUTE SCIENCE AND TECHNOLOGY)
    Inventors: Seung Ok Lee, Won Sang Koh, Jeong Soo Kim, Dai In Park, Je Hyun Chae, Nam Soon Choi, Jun Yeong Jang
  • Patent number: 10205195
    Abstract: Electrochemical cells having molten electrodes having an alkali metal provide receipt and delivery of power by transporting atoms of the alkali metal between electrode environments of disparate chemical potentials through an electrochemical pathway comprising a salt of the alkali metal. The chemical potential of the alkali metal is decreased when combined with one or more non-alkali metals, thus producing a voltage between an electrode comprising the molten alkali metal and the electrode comprising the combined alkali/non-alkali metals.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: February 12, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Dane A. Boysen, David J. Bradwell, Kai Jiang, Hojong Kim, Luis A. Ortiz, Donald R. Sadoway, Alina A. Tomaszowska, Weifeng Wei, Kangli Wang
  • Patent number: 10170799
    Abstract: An electrochemical cell includes a negative electrode having at least two active metals, a positive electrode having a metal or alloy, and an electrolyte having a cation of each of the active metals. The electrolyte defines first and second interfaces with the positive electrode being in contact with the first interface and the negative electrode being in contact with the second interface. The electrolyte is configured to allow the cations of the active metals to be transferred from the negative electrode to the positive electrode during discharging and to be transferred from the positive electrode to the negative electrode during charging. The electrolyte exists as a liquid phase and the negative electrode and the positive electrode exist as liquid or partially liquid phases at operating temperatures of the electrochemical cell.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: January 1, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Takanari Ouchi, Hojong Kim, Donald R. Sadoway
  • Patent number: 10128543
    Abstract: The present invention provides rechargeable electrochemical cells comprising a molten anode, a cathode, and a non-aqueous electrolyte salt, wherein the electrolyte salt is situated between the molten anode and the cathode during the operation of the electrochemical cell, and the molten anode comprises an aluminum material; also provided are batteries comprising a plurality of such rechargeable electrochemical cells and processes for manufacturing such rechargeable electrochemical cells.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: November 13, 2018
    Assignee: Eos Energy Storage, LLC
    Inventors: Steven Amendola, Stefanie Sharp-Goldman
  • Patent number: 10050252
    Abstract: A fault tolerant battery system includes an electrical storage cell having a positive terminal and a negative terminal. The electrical storage cell is provided with a normally open bypass circuit path that is closed in the event of an overdischarged, or open-circuit failure of, the electrical storage cell. The bypass circuit path includes a first electrical conductor connected to the negative terminal of the electrical storage cell, a second electrical conductor connected to the positive terminal of the electrical storage cell, and a shorting gap between the first electrical conductor and the second electrical conductor.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: August 14, 2018
    Assignee: THE BOEING COMPANY
    Inventors: Craig H. Becker-Irvin, Allen R. Powers
  • Patent number: 10008752
    Abstract: Disclosed is a technique for detecting a hazardous condition by a conductive layer in an energy storage device. An energy storage device assembly includes a conductive layer configured to cause a change in an electrical parameter in the event of a hazardous condition. A melting point of the conductive layer is lower than a boiling point of a liquid coolant. An electrical sensor is electrically connected to the conductive layer and configured to detect a change in the electrical parameter in the conductive layer. Upon detecting a change in the electrical parameter associated with a hazardous condition, an energy management system suspends operation of the energy storage device.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: June 26, 2018
    Assignee: ANHUI XINEN TECHNOLOGY CO., LTD.
    Inventor: John R. Chan
  • Patent number: 9991560
    Abstract: The present invention aims to a liquid electrolyte for a fluoride ion battery having high stability with respect to a fluoride ion. The present invention attains the object by providing a liquid electrolyte for a fluoride ion battery comprising: a fluoride salt; an alkali metal amide salt having an alkali metal cation and an amide anion; and a glyme represented by general formula: R1—O(CH2CH2O)n—R2 (in which R1 and R2 each independently represent an alkyl group with 4 or less carbon atoms or a fluoroalkyl group with 4 or less carbon atoms, and n is in the range of 2 to 10).
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: June 5, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KYOTO UNIVERSITY
    Inventors: Hirofumi Nakamoto, Zempachi Ogumi, Takeshi Abe
  • Patent number: 9954250
    Abstract: The present invention aims to a liquid electrolyte for a fluoride ion battery having high stability with respect to a fluoride ion. The present invention attains the object by providing a liquid electrolyte for a fluoride ion battery comprising: a fluoride salt; an alkali metal amide salt having an alkali metal cation and an amide anion; and a glyme represented by general formula: R1—O(CH2CH2O)n—R2 (in which R1 and R2 each independently represent an alkyl group with 4 or less carbon atoms or a fluoroalkyl group with 4 or less carbon atoms, and n is in the range of 2 to 10).
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: April 24, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KYOTO UNIVERSITY
    Inventors: Hirofumi Nakamoto, Zempachi Ogumi, Takeshi Abe
  • Patent number: 9876253
    Abstract: An additive that is added to the NaAlX4 electrolyte for use in a ZEBRA battery (or other similar battery). This additive has a moiety with a partial positive charge (?+) that attracts the negative charge of the [AlX4]? moiety and weakens the ionic bond between the Na+ and [AlX4]? moieties, thereby freeing some Na+ ions to transport (move). By using a suitable NaAlX4 electrolyte additive, the battery may be operated at much lower temperatures than are typical of ZEBRA batteries (such as, for example, at temperatures between 150 and 200° C.). Additionally, the additive also lowers the viscosity of the electrolyte solution and improves sodium conductivity. Non-limiting examples of the additive SOCl2, SO2, dimethyl sulfoxide (DMSO, CH3SOCH3), CH3S(O)Cl, SO2Cl2. A further advantage of using this additive is that it allows the use of a NaSICON membrane in a ZEBRA-type battery at lower temperatures compared to a typical ZEBRA battery.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: January 23, 2018
    Assignee: FIELD UPGRADING USA, INC.
    Inventors: Sai Bhavaraju, Mathew Robins
  • Patent number: 9843070
    Abstract: A metal-ion battery includes: (1) an anode including aluminum; (2) a cathode including a layered, active material; and (3) an electrolyte disposed between the anode and the cathode to support reversible deposition and dissolution of aluminum at the anode and reversible intercalation and de-intercalation of anions at the cathode.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: December 12, 2017
    Assignees: The Board of Trustees of the Leland Stanford Junior University, Industrial Technology Research Institute
    Inventors: Hongjie Dai, Meng-Chang Lin, Ming Gong, Bingan Lu, Yingpeng Wu
  • Patent number: 9797053
    Abstract: An electrochemical cell having a composite alkali ion-conductive electrolyte membrane. Generally, the cell includes a catholyte compartment and an anolyte compartment that are separated by the composite alkali ion-conductive electrolyte membrane. The composite electrolyte membrane includes a layer of alkali ion-conductive material and one or more layers of alkali intercalation compound which is chemically stable upon exposure to a chemically reactive anolyte solution or catholyte solution thereby protecting the layer of alkali ion-conductive material from unwanted chemical reaction. The layer of alkali intercalation compound conducts alkali ions. The cell may operate and protect the alkali ion-conductive material under conditions that would be adverse to the material if the intercalation compound were not present. The composite membrane may include a cation conductor layer having additional capability to protect the composite electrolyte membrane from adverse conditions.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: October 24, 2017
    Assignee: FIELD UPGRADING U.S.A., INC.
    Inventors: Ashok V Joshi, Sai Bhavaraju
  • Patent number: 9748564
    Abstract: A positive electrode composition is presented. The composition includes granules that comprise an electroactive metal, an alkali metal halide, and a metal sulfide composition that is substantially-free of oxygen. A molar ratio of the electroactive metal to an amount of sulfur in the metal sulfide composition is between about 1.5:1 and about 50:1. The positive electrode composition is substantially free of iron oxide, iron sulfate, cobalt oxide and cobalt sulfate. An energy storage device and a related energy storage system are also described.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: August 29, 2017
    Assignee: General Electric Company
    Inventors: Richard Louis Hart, Michael Alan Vallance
  • Patent number: 9711827
    Abstract: Provided is a sodium molten-salt battery having good charge-discharge cycle characteristics. The sodium molten-salt battery includes a positive electrode that contains a positive electrode active material, a negative electrode that contains a negative electrode active material, and a molten-salt electrolyte that contains a sodium salt and an ionic liquid that dissolves the sodium salt. The negative electrode active material contains non-graphitizable carbon. The ionic liquid is a salt of a bis(sulfonyl)imide anion and a first onium cation that does not cause a Faradaic reaction with the non-graphitizable carbon. The molten-salt electrolyte contains a second onium cation in an amount of 1,000 ppm by mass or less. The second onium cation is represented by a general formula (1): R1R2R3R4N+ where R1 to R4 are each independently a hydrogen atom or a methyl group.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: July 18, 2017
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Atsushi Fukunaga, Shinji Inazawa, Koji Nitta, Shoichiro Sakai, Eiko Imazaki, Koma Numata
  • Patent number: 9692045
    Abstract: A cell cathode compartment comprises a granule bed comprising metal granules, metal halide granules, and sodium halide granules, a separator adjacent to the granule bed, a liquid electrolyte dispersed in the granule bed, and a porous absorbent disposed in the granule bed, wherein a transverse cross-sectional distribution of the porous absorbent in the granule bed varies in a longitudinal direction from a first position to a second position. In another embodiment, a cell cathode compartment comprises a granule bed comprising metal granules, metal halide granules, and sodium halide granules, a separator adjacent to the granule bed, a liquid electrolyte dispersed in the granule bed, and a porous absorbent coating on a surface adjacent to the granule bed.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: June 27, 2017
    Assignee: General Electric Company
    Inventors: Manikandan Ramani, Edward James Balaschak, Robert Christie Galloway, Raymond R. Cole, Jonathan Adam Bielik
  • Patent number: 9660265
    Abstract: Lithium sulfur battery cells that use water as an electrolyte solvent provide significant cost reductions. Electrolytes for the battery cells may include water solvent for maintaining electroactive sulfur species in solution during cell discharge and a sufficient amount of a cycle life-enhancing compound that facilitates charging at the cathode. The combination of these two components enhances one or more of the following cell attributes: energy density, power density and cycle life. For instance, in applications where cost per Watt-Hour (Wh) is paramount, such as grid storage and traction applications, the use of an aqueous electrolyte in combination with inexpensive sulfur as the cathode active material can be a key enabler for the utility and automotive industries, for example, providing a cost effective and compact solution for load leveling, electric vehicles and renewable energy storage.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 23, 2017
    Assignee: POLYPLUS BATTERY COMPANY
    Inventors: Steven J. Visco, Nikolay Goncharenko, Vitaliy Nimon, Alexei Petrov, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Bruce D. Katz, Valentina Loginova
  • Patent number: 9608274
    Abstract: Provided is a sodium secondary battery including a graphite felt having a maximum porosity on a surface facing a solid electrolyte and a decreased porosity in a thickness direction, as a cathode current collector impregnated with an electrolyte.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: March 28, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Young Shol Kim, Ku Bong Chung, Jeong Soo Kim
  • Patent number: 9559387
    Abstract: The battery has rod cells, which are arranged next to one another in multiple rows and the end-side electrical contacts of which are respectively electrically connected to one another in parallel and in series by a common contact plate. For effective cooling, a flat heat exchange pocket, through which a heat transfer medium flows, abuts against these contact plates. This heat exchange pocket consists of a multilayered thin film having an electrically insulating outer layer.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: January 31, 2017
    Assignee: OBRIST TECHNOLOGIES GMBH
    Inventors: Frank Obrist, Martin Graz, Peter Giese, Oliver Obrist
  • Patent number: 9537192
    Abstract: A battery is provided with an associated method for transporting metal-ions in the battery using a low temperature molten salt (LTMS). The battery comprises an anode, a cathode formed from a LTMS having a liquid phase at a temperature of less than 150° C., a current collector submerged in the LTMS, and a metal-ion permeable separator interposed between the LTMS and the anode. The method transports metal-ions from the separator to the current collector in response to the LTMS acting simultaneously as a cathode and an electrolyte. More explicitly, metal-ions are transported from the separator to the current collector by creating a liquid flow of LTMS interacting with the current collector and separator.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: January 3, 2017
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Yuhao Lu, Sean Andrew Vail, Gregory M. Stecker, Jong-Jan Lee
  • Patent number: 9444100
    Abstract: In a secondary battery, a negative electrode, an electrolytic solution for negative electrode, a diaphragm, an electrolytic solution for positive electrode, and a positive electrode are disposed in order. The negative electrode includes a negative-electrode active material that has an element whose oxidation-reduction potential is more “base” by 1.5 V or more than an oxidation-reduction potential of hydrogen, and whose volume density is larger than that of lithium metal. The diaphragm includes a solid electrolyte transmitting ions of said element alone. A secondary battery with high volumetric density is provided.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: September 13, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Junichi Niwa, Masataka Nakanishi, Kazuhito Kawasumi, Masakazu Murase
  • Patent number: 9431682
    Abstract: The present invention provides an electrochemical cell having an negative electrode compartment and a positive electrode compartment. A solid alkali ion conductive electrolyte membrane is positioned between the negative electrode compartment and the positive electrode compartment. A catholyte solution in the positive electrode compartment includes a halide ion or pseudohalide ion concentration greater than 3M, which provides degradation protection to the alkali ion conductive electrolyte membrane. The halide ion or pseudohalide ion is selected from chloride, bromide, iodide, azide, thiocyanate, and cyanide. In some embodiments, the electrochemical cell is a molten sodium rechargeable cell which functions at an operating temperature between about 100° C. and about 150° C.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: August 30, 2016
    Assignee: CERAMATEC, INC.
    Inventors: Sai Bhavaraju, Mathew Robins, Chett Boxley
  • Patent number: 9269956
    Abstract: The battery includes a cathode configured to generate oxygen ions during discharge of the battery. The battery also includes an oxygen ion-conducting electrolyte that receives the oxygen ions from the cathode during discharge of the battery. The battery further includes an anode that has an anode active medium positioned in the pores of a porous anode current collector. The anode active medium receives the oxygen ions conducted through the oxygen ion conducting electrolyte during discharge of the battery. Additionally, the anode active medium includes an elemental metal that reacts with the oxygen ions to form a metal oxide during discharge of the battery.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: February 23, 2016
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Ryo Tamaki
  • Patent number: 9269929
    Abstract: An electrochemical storage cell includes a housing; a solid electrolyte tube, which defines an inner space of the housing as a first electrode chamber and a second electrode chamber; a first electrode material in the first electrode chamber; a second electrode material in the second electrode chamber; and an electron channel unit arranged in the second electrode chamber for guiding movement of electrons in the second electrode chamber, the electron channel unit having a non-constant thickness.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: February 23, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jeong-Doo Yi
  • Patent number: 9252461
    Abstract: Sodium energy storage devices employing aspects of both ZEBRA batteries and traditional Na—S batteries can perform better than either battery alone. The hybrid energy storage devices described herein can include a sodium anode, a molten sodium salt catholyte, and a positive electrode that has active species containing sulfur. Additional active species can include a transition metal source and NaCl. As a product of the energy discharge process, Na2Sx forms in which x is less than three.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: February 2, 2016
    Assignee: Battelle Memorial Institute
    Inventors: Xiaochuan Lu, Jin Yong Kim, Guosheng Li, John P. Lemmon, Vincent L. Sprenkle
  • Patent number: 9076917
    Abstract: Provided is a method for manufacturing a photovoltaic cell in which a light absorption layer is formed by promoting chalcogenation. The method includes providing a microporous member, arranging an object on a first side of the microporous member, and arranging a chalcogen source on a second side of the microporous member opposite to the first side, heating the chalcogen source, transmitting a liquefied or evaporated portion of the heated chalcogen source through the microporous member, and exposing the object to the liquefied or evaporated portion of the heated chalcogen source that has passed through the microporous member.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: July 7, 2015
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YEUNGNAM UNIVERSITY
    Inventor: Chan-Wook Jeon
  • Publication number: 20150132628
    Abstract: Pressure relief mechanisms can provide an outlet for cathode pressure buildup during battery operation. Mechanical cathode modifications can control cathode interfaces during battery operation. Pressure relief mechanisms and mechanical modifications can be utilized to improve performance, longevity and/or to prevent failure of batteries, such as during cycling of liquid metal batteries.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 14, 2015
    Inventors: David J. Bradwell, Alex Vai, Tom Kinney, Sean Theriault, Garrett Lau
  • Publication number: 20150132627
    Abstract: The present disclosure provides an energy storage device comprising at least one electrochemical cell comprising a negative current collector, a negative electrode in electrical communication with the negative current collector, an electrolyte in electrical communication with the negative electrode, a positive electrode in electrical communication with the electrolyte and a positive current collector in electrical communication with the positive electrode. The negative electrode comprises an alkali metal. Upon discharge, the electrolyte provides charged species of the alkali metal. The positive electrode can include a Group IIIA, IVA, VA and VIA of the periodic table of the elements, or a transition metal (e.g., Group 12 element).
    Type: Application
    Filed: November 7, 2014
    Publication date: May 14, 2015
    Inventors: David J. Bradwell, Xingwen Yu, Greg A. Thompson, Jianyi Cui, Alex Elliott, Chia-Ying Lee, Denis Tite
  • Patent number: 9005793
    Abstract: Systems and methods for obtaining and/or maintaining a column height of an electrolyte relative to a separator surface within an energy storage device. Embodiments of the invention provide a wicking component, a current collector, and a bias component. The current collector is positioned to force the bias component to press the wicking component tight to an inner surface of a separator. The bias component maintains contact between the wicking component and the surface of separator and creates a capillary gap in which sodium wicks.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: April 14, 2015
    Assignee: General Electric Company
    Inventors: Alec Roger Tilley, Hiroshi Ohata, Koichi Kanie
  • Publication number: 20150086826
    Abstract: An intermediate temperature molten sodium-metal halide rechargeable battery utilizes a molten eutectic mixture of sodium haloaluminate salts having a relatively low melting point that enables the battery to operate at substantially lower temperature compared to the traditional ZEBRA battery system and utilize a highly conductive NaSICON solid electrolyte membrane. The positive electrode comprises a mixture of NaX and MX, where X is a halogen selected from Cl, Br and I and M is a metal selected Ni, Fe, and Zn. The positive electrode is disposed in a mixed molten salt positive electrolyte comprising at least two salts that can be represented by the formula NaAlX?4-?X??, where 0<?<4, wherein X? and X? are different halogens selected from Cl, Br and I. The positive electrode may include additional NaX added in a molar ratio ranging from 1:1 to 3:1 of NaX:NaAlX?4-?X??.
    Type: Application
    Filed: September 25, 2014
    Publication date: March 26, 2015
    Inventors: Sai Bhavaraju, Ashok V. Joshi, Mathew Robins, Alexis Eccleston
  • Patent number: 8980459
    Abstract: Cell and batteries containing them employing a transition metal chalcogenide positive electrode (cathode) in combination with a liquid alkali metal haloaluminate. At operating temperatures, the positive electrode (cathode) of the invention comprises a solid matrix comprising electroactive cathode material permeated with and in physical and electrical contact with liquid alkali metal haloaluminate electrolyte. The positive and negative electrodes are separated with a solid alkali metal conducting electrolyte. The transition metal chalcogenide is not in direct physical contact with the solid electrolyte. Electric and ionic conductivity between the solid electrolyte and the positive electrode is mediated by the liquid alkali metal haloaluminate electrolyte. More specifically, the cells are sodium/iron sulfide cells. Batteries of the invention are useful for bulk energy storage, particularly for electric utility grid storage, as well as for electric vehicle propulsion.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: March 17, 2015
    Assignee: Dynantis Corporation
    Inventor: Anthony F Sammells
  • Patent number: 8974939
    Abstract: An electrochemical device (such as a battery) includes at least one electrode having a fluid surface, which may employ a surface energy effect to maintain a position of the fluid surface and/or to modulate flow within the fluid. Fluid-directing structures may also modulate flow or retain fluid in a predetermined pattern. An electrolyte within the device may also include an ion-transport fluid, for example infiltrated into a porous solid support.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: March 10, 2015
    Assignee: The Invention Science Fund I, LLC
    Inventors: Geoffrey F. Deane, Bran Ferren, William Gates, W. Daniel Hillis, Roderick A. Hyde, Muriel Y. Ishikawa, Edward K.Y. Jung, Jordin T. Kare, Nathan P. Myhrvold, Clarence T. Tegreene, David B. Tuckerman, Thomas A. Weaver, Charles Whitmer, Lowell L. Wood, Jr., Victoria Y.H. Wood
  • Patent number: 8968902
    Abstract: The present invention provides a molten sodium secondary cell. In some cases, the secondary cell includes a sodium metal negative electrode, a positive electrode compartment that includes a positive electrode disposed in a liquid positive electrode solution, and a sodium ion conductive electrolyte membrane that separates the negative electrode from the positive electrode solution. In such cases, the electrolyte membrane can comprise any suitable material, including, without limitation, a NaSICON membrane. Furthermore, in such cases, the liquid positive electrode solution can comprise any suitable positive electrode solution, including, but not limited to, an aqueous sodium hydroxide solution. Generally, when the cell functions, the sodium negative electrode is molten and in contact with the electrolyte membrane. Additionally, the cell is functional at an operating temperature between about 100° C. and about 170° C. Indeed, in some instances, the molten sodium secondary cell is functional between about 110° C.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: March 3, 2015
    Assignee: Ceramatec, Inc.
    Inventors: W. Grover Coors, Chett Boxley, Mathew Robins, Alexis Eccleston
  • Patent number: 8968903
    Abstract: An electrochemical device (such as a battery) includes at least one electrode having a fluid surface, which may employ a surface energy effect to maintain a position of the fluid surface and/or to modulate flow within the fluid. Fluid-directing structures may also modulate flow or retain fluid in a predetermined pattern. An electrolyte within the device may also include an ion-transport fluid, for example infiltrated into a porous solid support.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: March 3, 2015
    Assignee: The Invention Science Fund I, LLC
    Inventors: Geoffrey F. Deane, Bran Ferren, William Gates, W. Daniel Hillis, Roderick A. Hyde, Muriel Y. Ishikawa, Edward K. Y. Jung, Jordin T. Kare, Nathan P. Myhrvold, Clarence T. Tegreene, David B. Tuckerman, Thomas A. Weaver, Charles Whitmer, Lowell L. Wood, Jr., Victoria Y. H. Wood
  • Publication number: 20150015210
    Abstract: The present disclosure provides an energy storage device comprising at least one electrochemical cell comprising a negative current collector, a negative electrode in electrical communication with the negative current collector, an electrolyte in electrical communication with the negative electrode, a positive electrode in electrical communication with the electrolyte and a positive current collector in electrical communication with the positive electrode. The negative electrode comprises an alkali metal. Upon discharge, the electrolyte provides charged species of the alkali metal. The positive electrode can include a Group IIIA, IVA, VA and VIA of the periodic table of the elements, or a transition metal (e.g., Group 12 element).
    Type: Application
    Filed: May 23, 2014
    Publication date: January 15, 2015
    Applicant: Ambri, Inc.
    Inventors: David J. Bradwell, Xingwen Yu, Greg A. Thompson, Jianyi Cui, Alex Elliott, Chia-Ying Lee, Denis Tite
  • Publication number: 20150010792
    Abstract: The present invention provides rechargeable electrochemical cells comprising a molten anode, a cathode, and a non-aqueous electrolyte salt, wherein the electrolyte salt is situated between the molten anode and the cathode during the operation of the electrochemical cell, and the molten anode comprises an aluminum material; also provided are batteries comprising a plurality of such rechargeable electrochemical cells and processes for manufacturing such rechargeable electrochemical cells.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 8, 2015
    Inventors: Steven Amendola, Stefanie Sharp-Goldman
  • Publication number: 20150004455
    Abstract: Pressure relief mechanisms can provide an outlet for cathode pressure buildup during battery operation. Mechanical cathode modifications can control cathode interfaces during battery operation. Pressure relief mechanisms and mechanical modifications can be utilized to improve performance, longevity and/or to prevent failure of batteries, such as during cycling of liquid metal batteries.
    Type: Application
    Filed: February 12, 2014
    Publication date: January 1, 2015
    Applicant: Ambri Inc.
    Inventors: David J. Bradwell, Alex T. Vai, Tom Kinney, Sean Theriault, Garrett Lau
  • Publication number: 20140349159
    Abstract: An electrochemical cell is presented. The electrochemical cell includes an ion-conducting separator having a first surface that defines at least a portion of a first compartment and a second surface that defines at least a portion of a second compartment, and a positive electrode composition disposed in the first compartment, the positive electrode composition comprising an electroactive metal, an alkali metal halide, and an electrolyte. The electroactive metal includes metal flakes of an average aspect ratio greater than about 5. An energy storage battery including a plurality of electrochemical cells is also presented.
    Type: Application
    Filed: May 21, 2013
    Publication date: November 27, 2014
    Inventors: Brandon Alan Bartling, Michael Alan Vallance, Richard Louis Hart
  • Patent number: 8859140
    Abstract: An electrode for a molten salt battery includes a current collector connectable to an electrode terminal of the molten salt battery and an active material. The current collector has an internal space in which small spaces are mutually coupled. The internal space of the current collector is filled with the active material.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: October 14, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Syoichiro Sakai, Shinji Inazawa, Masatoshi Majima, Koji Nitta, Atsushi Fukunaga
  • Publication number: 20140285153
    Abstract: Provided is a method for operating a molten salt battery having a sodium compound (NaCrO2) in a positive electrode and tin (Sn) in a negative electrode with a molten salt as an electrolytic solution. Although the operating temperature range of the molten salt battery is originally from 57° C. to 190° C., the molten salt battery is operated with an internal temperature thereof (temperature of electrodes and molten salt) set at from 98° C. to 190° C. to cause sodium to turn to a liquid phase. The sodium penetrates into a Sn—Na alloy micronized in the negative electrode, so that separation of the Sn—Na alloy is suppressed.
    Type: Application
    Filed: September 28, 2012
    Publication date: September 25, 2014
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Atsushi Fukunaga, Shinji Inazawa, Koji Nitta, Shoichiro Sakai, Koma Numata, Toshiyuki Nohira, Rika Hagiwara, Takayuki Yamamoto
  • Publication number: 20140272481
    Abstract: An electrochemical cell includes a negative electrode comprising a first active metal, a positive electrode comprising a second active metal, and an electrolyte comprising salts of the two active metals, a salt of the cathodic metal and a salt of the anodic metal. In operation, the electrolyte composition varies such that in a charging mode the salt of the anodic salt decreases, while the salt of the cathodic salt increases, and in a discharging mode the salt of the anodic salt increases, while the salt of the cathodic salt decreases. The cell is operational for both storing electrical energy and as a source of electrical energy as part of an uninterruptible power system. The cell is particularly suited to store electrical energy produced by an intermittent renewable energy source.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: Total Marketing Services
    Inventors: Brice H.V. Chung, Donald R. Sadoway
  • Patent number: 8816635
    Abstract: An electrochemical cell includes an anode connectable to a current tap and a charging medium in electrical contact with the anode. A switching device is configured to stop a charging operation of the electrochemical cell upon activation by the charging medium.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: August 26, 2014
    Assignee: General Electric Company
    Inventors: Chandra Sekher Yerramalli, Badri Narayan Ramamurthi, Reza Sarrafi-Nour, Andrew Philip Shapiro, Anil Raj Duggal
  • Publication number: 20140212707
    Abstract: The present invention provides a molten sodium secondary cell. In some cases, the secondary cell includes a sodium metal negative electrode, a positive electrode compartment that includes a positive electrode disposed in a molten positive electrolyte comprising Na—FSA (sodium-bis(fluorosulonyl)amide), and a sodium ion conductive electrolyte membrane that separates the negative electrode from the positive electrolyte. One disclosed example of electrolyte membrane material includes, without limitation, a NaSICON-type membrane. The positive electrode includes a sodium intercalation electrode. Non-limiting examples of the sodium intercalation electrode include NaxMnO2, NaxCrO2, NaxNiO, and NaxFey(PO4)z. The cell is functional at an operating temperature between about 100° C. and about 150° C., and preferably between about 110° C. and about 130° C.
    Type: Application
    Filed: March 11, 2014
    Publication date: July 31, 2014
    Applicant: Ceramatec, Inc.
    Inventors: Sai Bhavaraju, Mathew Robins