Patents by Inventor Kaoru Omichi

Kaoru Omichi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200373622
    Abstract: Electrolyte solutions including at least one anhydrous fluoride salt and at least one non-aqueous solvent are presented. The fluoride salt includes an organic cation having a charge center (e.g., N, P, S, or O) that does not possess a carbon in the ?-position or does not possess a carbon in the ?-position having a bound hydrogen. This salt structure facilitates its ability to be made anhydrous without decomposition. Example anhydrous fluoride salts include (2,2-dimethylpropyl)trimethylammonium fluoride and bis(2,2-dimethylpropyl)dimethylammonium fluoride. Combining these fluoride salts with at least one fluorine-containing non-aqueous solvent (e.g., bis(2,2,2-trifluoroethyl)ether; (BTFE)) promotes solubility of the salt within the non-aqueous solvents. The solvent may be a mixture of at least one non-aqueous, fluorine-containing solvent and at least one other non-aqueous, fluorine or non-fluorine containing solvent (e.g., BTFE and propionitrile or dimethoxyethane).
    Type: Application
    Filed: June 10, 2020
    Publication date: November 26, 2020
    Applicants: CALIFORNIA INSTITUTE OF TECHNOLOGY, HONDA MOTOR CO., LTD.
    Inventors: Simon C. JONES, Victoria K. DAVIS, Christopher M. BATES, Nebojsa MOMCILOVIC, Brett M. SAVOIE, Michael A. WEBB, Thomas F. MILLER, III, Robert H. GRUBBS, Christopher BROOKS, Kaoru OMICHI
  • Publication number: 20200335788
    Abstract: An anode for a fluoride ion electrochemical cell is provided and includes a layered material of hard carbon, nitrogen doped graphite, boron doped graphite, TiS2, MoS2, TiSe2, MoSe2, VS2, VSe2, electrides of alkali earth metal nitrides, electrides of metal carbides, or combinations thereof. The anode may be included in a fluoride ion electrochemical cell, which additionally includes a cathode and a fluoride ion electrolyte arranged between the cathode and the anode. At least one of the cathode and the anode reversibly exchange the fluoride ions with the electrolyte during charging or discharging of the electrochemical cell.
    Type: Application
    Filed: June 30, 2020
    Publication date: October 22, 2020
    Inventors: Kaoru Omichi, Qingmin Xu, Christopher Brooks
  • Patent number: 10727487
    Abstract: An anode for a fluoride ion electrochemical cell is provided and includes a layered material of hard carbon, nitrogen doped graphite, boron doped graphite, TiS2, MoS2, TiSe2, MoSe2, VS2, VSe2, electrides of alkali earth metal nitrides, electrides of metal carbides, or combinations thereof. The anode may be included in a fluoride ion electrochemical cell, which additionally includes a cathode and a fluoride ion electrolyte arranged between the cathode and the anode. At least one of the cathode and the anode reversibly exchange the fluoride ions with the electrolyte during charging or discharging of the electrochemical cell.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: July 28, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kaoru Omichi, Qingmin Xu, Christopher Brooks
  • Patent number: 10720666
    Abstract: Electrolyte solutions including at least one anhydrous fluoride salt and at least one non-aqueous solvent are presented. The fluoride salt includes an organic cation having a charge center (e.g., N, P, S, or O) that does not possess a carbon in the ?-position or does not possess a carbon in the ?-position having a bound hydrogen. This salt structure facilitates its ability to be made anhydrous without decomposition. Example anhydrous fluoride salts include (2,2-dimethylpropyl)trimethylammonium fluoride and bis(2,2-dimethylpropyl)dimethylammonium fluoride. Combining these fluoride salts with at least one fluorine-containing non-aqueous solvent (e.g., bis(2,2,2-trifluoroethyl)ether; (BTFE)) promotes solubility of the salt within the non-aqueous solvents. The solvent may be a mixture of at least one non-aqueous, fluorine-containing solvent and at least one other non-aqueous, fluorine or non-fluorine containing solvent (e.g., BTFE and propionitrile or dimethoxyethane).
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: July 21, 2020
    Assignees: California Institute of Technology, Honda Motor Co., LTD.
    Inventors: Simon C. Jones, Victoria K. Davis, Christopher M. Bates, Nebojsa Momcilovic, Brett M. Savoie, Michael A. Webb, Thomas F. Miller, III, Robert H. Grubbs, Christopher Brooks, Kaoru Omichi
  • Publication number: 20200185776
    Abstract: The present disclosure is directed to fluoride (F) ion batteries and F shuttle batteries comprising an anode with a solid electrolyte interphase (SEI) layer, a cathode comprising a core shell structure, and a liquid fluoride battery electrolyte. According to some aspects, the components therein enable discharge and recharge at room-temperature.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 11, 2020
    Inventors: Qingmin XU, Christopher J. BROOKS, Kaoru OMICHI, Simon JONES, Victoria DAVIS, Stephen MUNOZ, Jeongmin KIM, Keith BILLINGS, Thomas MILLER, III, Robert H. GRUBBS, William WOLF
  • Publication number: 20200108229
    Abstract: The present disclosure relates to fluoride ion batteries and structures of metal based electrode materials for various fluoride ion batteries. The structures of the metal based electrode materials comprise one or more shells or interfaces, enabling the electrodes to operate at room temperature with a liquid electrolyte.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 9, 2020
    Inventors: Qingmin XU, Christopher J. BROOKS, Kaoru OMICHI, Ryan K. MCKENNEY, Simon Jones, Victoria DAVIS, Stephen MUNOZ, Jeongmin KIM, Keith BILLINGS, Thomas MILLER, III, Robert H. GRUBBS, William WOLF
  • Publication number: 20190372111
    Abstract: The present disclosure relates to a fluoride shuttle battery and nanostructures of copper based cathode materials in the fluoride shuttle battery. The F-shuttle batteries of present disclosure comprise a liquid electrolyte, which allows the F-shuttle batteries to operate under room temperature. The minimum thickness of copper layer within the copper nanostructures is no more than 20 nm. The thickness of copper layer within the copper nanostructures is controlled and reduced to ensure the energy densities of F-shuttle batteries.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 5, 2019
    Inventors: Qingmin XU, Christopher J. Brooks, Ryan Mckenney, Nam Hawn Chou, Kaoru Omichi, Simon C. Jones, Thomas F. Miller, III, Stephen A. Munoz
  • Publication number: 20190103607
    Abstract: An anode for a fluoride ion electrochemical cell is provided and includes a layered material of hard carbon, nitrogen doped graphite, boron doped graphite, TiS2, MoS2, TiSe2, MoSe2, VS2, VSe2, electrides of alkali earth metal nitrides, electrides of metal carbides, or combinations thereof. The anode may be included in a fluoride ion electrochemical cell, which additionally includes a cathode and a fluoride ion electrolyte arranged between the cathode and the anode. At least one of the cathode and the anode reversibly exchange the fluoride ions with the electrolyte during charging or discharging of the electrochemical cell.
    Type: Application
    Filed: October 4, 2017
    Publication date: April 4, 2019
    Inventors: Kaoru Omichi, Qingmin Xu, Christopher Brooks
  • Publication number: 20180301764
    Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. The fluoride-conducting encapsulant may comprise one or more metals.
    Type: Application
    Filed: June 20, 2018
    Publication date: October 18, 2018
    Inventors: Nam Hawn CHOU, Kaoru OMICHI, Ryan MCKENNEY, Qingmin XU, Christopher BROOKS, Simon C. JONES, Isabelle M. DAROLLES, Hongjin TAN
  • Publication number: 20180175448
    Abstract: The present disclosure relates to an electrochemical cell which may be used, for example, in a rechargeable battery based on the reversible transfer of halide anions, and a method for making an electrolyte composition for use in the same. The electrochemical cell includes a positive electrode, a negative electrode, and an electrolyte composition positioned between the two electrodes, where the electrolyte composition contains a crown ether-metal halide complex in a solvent.
    Type: Application
    Filed: January 31, 2017
    Publication date: June 21, 2018
    Inventors: Kaoru OMICHI, Christopher BROOKS, Ryan MCKENNEY
  • Publication number: 20180175382
    Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 21, 2018
    Inventors: Nam Hawn CHOU, Kaoru Omichi, Ryan McKenney, Qingmin Xu, Christopher Brooks, Simon C. Jones, Isabelle M. Darolles, Hongjin Tan
  • Publication number: 20170062874
    Abstract: Electrolyte solutions including at least one anhydrous fluoride salt and at least one non-aqueous solvent are presented. The fluoride salt includes an organic cation having a charge center (e.g., N, P, S, or O) that does not possess a carbon in the ?-position or does not possess a carbon in the ?-position having a bound hydrogen. This salt structure facilitates its ability to be made anhydrous without decomposition. Example anhydrous fluoride salts include (2,2-dimethylpropyl)trimethylammonium fluoride and bis(2,2-dimethylpropyl)dimethylammonium fluoride. Combining these fluoride salts with at least one fluorine-containing non-aqueous solvent (e.g., bis(2,2,2-trifluoroethyl)ether; (BTFE)) promotes solubility of the salt within the non-aqueous solvents. The solvent may be a mixture of at least one non-aqueous, fluorine-containing solvent and at least one other non-aqueous, fluorine or non-fluorine containing solvent (e.g., BTFE and propionitrile or dimethoxyethane).
    Type: Application
    Filed: August 4, 2016
    Publication date: March 2, 2017
    Inventors: Simon C. JONES, Victoria K. DAVIS, Christopher M. BATES, Nebojsa MOMCILOVIC, Brett M. SAVOIE, Michael A. WEBB, Thomas F. MILLER, III, Robert H. GRUBBS, Christopher BROOKS, Kaoru OMICHI
  • Patent number: 9236605
    Abstract: Provided is a positive electrode active material capable of obtaining high capacity density and also capable of obtaining sufficient charge-discharge characteristics in a region which involves high current density, when the positive electrode active material is used in a non-aqueous electrolyte secondary battery. The positive electrode active material for the non-aqueous electrolyte secondary battery includes FeF3 in which at least a part of a surface thereof is coated with an electroconductive metal oxide.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: January 12, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kaoru Omichi, Yuji Isogai, Shintaro Aoyagi
  • Patent number: 9136032
    Abstract: Provided is a cathode material capable of obtaining high energy density and superior instantaneous output characteristics in a lithium ion secondary battery. The cathode material is used in a lithium ion secondary battery (1), and includes FeF3 and LiV3O8 as a cathode active material. A mass ratio of FeF3 to LiV3O8 of the cathode material is in a range of 86:14 to 43:57. The cathode material further comprises a conductive auxiliary.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: September 15, 2015
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuji Isogai, Shintaro Aoyagi, Kaoru Omichi
  • Patent number: 8821767
    Abstract: A cathode active material is provided by which excellent charge and discharge properties in a high-current range can be obtained when used in non-aqueous electrolyte secondary batteries. The cathode active material consists of a mixed metal fluoride represented by the general formula Fe(1-x)MxF3. M is a metal element selected from the group consisting of Y, Mn, Cu, Zn, and Cr. x is 0.01?x?0.15.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: September 2, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kaoru Omichi, Yuji Isogai, Yuki Ito
  • Publication number: 20140103263
    Abstract: Provided is a cathode material capable of obtaining high energy density and superior instantaneous output characteristics in a lithium ion secondary battery. The cathode material is used in a lithium ion secondary battery (1), and includes FeF3 and LiV3O8 as a cathode active material. A mass ratio of FeF3 to LiV3O8 of the cathode material is in a range of 86:14 to 43:57. The cathode material further comprises a conductive auxiliary.
    Type: Application
    Filed: October 14, 2013
    Publication date: April 17, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yuji Isogai, Shintaro Aoyagi, Kaoru Omichi
  • Publication number: 20140079998
    Abstract: Provided is a positive electrode active material capable of obtaining high capacity density and also capable of obtaining sufficient charge-discharge characteristics in a region which involves high current density, when the positive electrode active material is used in a non-aqueous electrolyte secondary battery. The positive electrode active material for the non-aqueous electrolyte secondary battery includes FeF3 in which at least a part of a surface thereof is coated with an electroconductive metal oxide.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 20, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Kaoru Omichi, Yuji Isogai, Shintaro Aoyagi
  • Publication number: 20140079999
    Abstract: The present invention provides a cathode material that can achieve a high energy density and excellent instantaneous output characteristics in lithium ion secondary batteries. The cathode material is used in a lithium ion secondary battery 1, and contains FeF3 and carbon-coated LiFePO4 as cathode active materials.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 20, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Shintaro Aoyagi, Yuji Isogai, Kaoru Omichi
  • Publication number: 20140054517
    Abstract: A cathode active material is provided by which excellent charge and discharge properties in a high-current range can be obtained when used in non-aqueous electrolyte secondary batteries. The cathode active material consists of a mixed metal fluoride represented by the general formula Fe(1?x)MxF3. M is a metal element selected from the group consisting of Y, Mn, Cu, Zn, and Cr. x is 0.01?x?0.15.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 27, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Kaoru Omichi, Yuji Isogai, Yuki Ito
  • Patent number: 8652987
    Abstract: A method for producing an alloy catalyst for redox reaction comprising alloy particles of platinum and nickel, wherein the alloy particles are equipped at an outer surface with a crystal lattice plane represented by a Miller index {111} and have an average particle diameter in a range of 6 to 20 nm, the method comprising: dissolving, in an alcohol, a salt and/or complex of platinum, a salt and/or complex of nickel, and a polymer containing a plurality of salt structures comprising an organic cation and a halogen anion in a polymer chain and heating the resulting solution to reflux under an inert atmosphere.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: February 18, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Ryogo Sakamoto, Kaoru Omichi, Masao Ichiwaka