Patents by Inventor Fuminori Mizuno

Fuminori Mizuno 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: 20240194877
    Abstract: A main object of the present disclosure is to provide an all solid state battery in which increase of internal resistance is suppressed. The present disclosure achieves the object by providing an all solid state battery including a cathode, an anode, and a solid electrolyte layer arranged between the cathode and the anode, wherein: the anode includes an anode active material layer and an anode current collector; the anode active material layer contains an anode active material, a sulfide solid electrolyte, and a molten salt of which melting point is 30° C. or more and 80° C. or less; and the anode current collector is a current collector in which a sulfidation due to the sulfide solid electrolyte occurs.
    Type: Application
    Filed: February 22, 2024
    Publication date: June 13, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Manabu IMANO, Fuminori MIZUNO
  • Publication number: 20240088386
    Abstract: A secondary battery system of the present disclosure includes a secondary battery and a heating device, wherein the secondary battery includes a positive electrode and a negative electrode, and one or both of the positive electrode and the negative electrode include an active material and a granulated body, the active material includes a material whose volume changes with charge and discharge of the secondary battery, the granulated body includes an inorganic solid electrolyte and an alkali metal-containing salt, and a target heated by the heating device includes the alkali metal-containing salt.
    Type: Application
    Filed: July 19, 2023
    Publication date: March 14, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki NISHIMURA, Fuminori MIZUNO, Keiichi MINAMI, Azusa NAKANISHI
  • Patent number: 11777135
    Abstract: 3-D magnesium voltaic cells have a magnesium anode coated on multiple opposing surfaces with a continuous protective/electrolyte layer that is ionically conductive and electronically insulating. The resulting protected 3-D magnesium anode is coated on multiple opposing surfaces with a continuous cathode layer that is electronically and ionically conductive, and includes a magnesium storage medium. Suitable magnesium anodes, in particular, magnesium foam anodes, can be made by pulsed galvanostatic deposition of magnesium on a copper substrate. The protective layer can be formed by electropolymerization of a suitable methylacrylate ester. The continuous cathode layer can be a slurry cathode having powders of an electronic conductor and a reversible magnesium storage component suspended in a magnesium electrolyte solution.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: October 3, 2023
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Fuminori Mizuno, Rana Mohtadi, Oscar Tutusaus, Nikhilendra Singh, Timothy S. Arthur, Ruidong Yang, Kensuke Takechi, Chen Ling, Ruigang Zhang
  • Publication number: 20230155130
    Abstract: A main object of the present disclosure is to provide an all solid state battery in which increase of internal resistance is suppressed. The present disclosure achieves the object by providing an all solid state battery including a cathode, an anode, and a solid electrolyte layer arranged between the cathode and the anode, wherein: the anode includes an anode active material layer and an anode current collector; the anode active material layer contains an anode active material, a sulfide solid electrolyte, and a molten salt of which melting point is 30° C. or more and 80° C. or less; and the anode current collector is a current collector in which a sulfidation due to the sulfide solid electrolyte occurs.
    Type: Application
    Filed: October 28, 2022
    Publication date: May 18, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Manabu IMANO, Fuminori MIZUNO
  • Publication number: 20230011919
    Abstract: A main object of the present disclosure is to provide an all solid state battery in which occurrence of internal short circuit is inhibited. The present disclosure achieves the object by providing an all solid state battery including, in an order along with a thickness direction, a cathode layer, a solid electrolyte layer and an anode layer; wherein one of the cathode layer and the anode layer is an electrode layer A containing a first polymer electrolyte; the other of the cathode layer and the anode layer is an electrode layer B containing an inorganic solid electrolyte; the solid electrolyte layer contains a second polymer electrolyte; the second polymer electrolyte is a cross-linked polymer to which a polymer component is cross-linked; and in a plan view along with the thickness direction of the all solid state battery, an area of the solid electrolyte layer is larger than an area of the electrode layer A.
    Type: Application
    Filed: June 17, 2022
    Publication date: January 12, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinya SHIOTANI, Takamasa OHTOMO, Fuminori MIZUNO
  • Publication number: 20230006261
    Abstract: To provide an all-solid-state battery that makes it possible to suppress short-circuiting due to a partially missing resin layer of a housing, in the all-solid-state battery formed of sealing an electrode structure in the housing, the housing is provided with a metal layer, the electrode structure includes an electrode stack and an outermost solid electrolyte layer, the electrode stack includes an outermost first current collector layer, the area of the outermost solid electrolyte layer is larger than the area of a flat plate part of the outermost first current collector layer in the stacking direction view, and the outermost solid electrolyte layer is stacked so as to entirely cover the flat plate part of the outermost first current collector layer.
    Type: Application
    Filed: June 9, 2022
    Publication date: January 5, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takamasa OHTOMO, Fuminori MIZUNO, Shinya SHIOTANI
  • Publication number: 20230006260
    Abstract: A solid-state battery includes: a first current collector layer; a first current collector tab protruding from an edge of the first current collector layer; a first active material layer laminated on the first current collector layer; a second current collector layer; a second current collector tab protruding from an edge of the second current collector layer; a second active material layer laminated on the second current collector layer; and a solid electrolyte layer arranged between the first active material layer and the second active material layer and including a polymer electrolyte, wherein the solid electrolyte layer is arranged so as to cover end surfaces of the first current collector layer and the first active material layer, and the first current collector tab protrudes through the solid electrolyte layer.
    Type: Application
    Filed: May 24, 2022
    Publication date: January 5, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takamasa OHTOMO, Fuminori MIZUNO, Shinya SHIOTANI
  • Publication number: 20230006243
    Abstract: A solid-state battery includes: a first current collector layer having a first current collector tab protruding from one side of a quadrilateral; a first active material layer laminated on the first current collector layer; a second current collector layer having a second current collector tab protruding from one side of a quadrilateral; a second active material layer laminated on the second current collector layer; and a solid electrolyte layer arranged between the first active material layer and the second active material layer and including a polymer electrolyte, wherein, in three sides other than the one side where the first current collector tab is arranged, the solid electrolyte layer is arranged so as to cover end surfaces of the first current collector layer and the first active material layer.
    Type: Application
    Filed: May 24, 2022
    Publication date: January 5, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Fuminori MIZUNO, Shinya SHIOTANI, Takamasa OHTOMO
  • Publication number: 20220393160
    Abstract: A main object of the present disclosure is to provide an all solid state battery with capacity durability. The present disclosure achieves the object by providing an all solid state battery including a cathode layer, an anode layer, and a solid electrolyte layer arranged between the cathode layer and the anode layer, wherein the anode layer contains a granulated body including a Si-based active material and a molten salt, which is in a solid state at 25° C.
    Type: Application
    Filed: May 18, 2022
    Publication date: December 8, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Fuminori Mizuno
  • Patent number: 11075381
    Abstract: A sodium-ion battery having a boron-doped graphene sheet as an anode active material is provided. The boron-doped graphene sheet is of formula BxCy, where x and y satisfy a relation of x+y=4, and x is a number larger than 0 and less than or equal to 1.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: July 27, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Chen Ling, Fuminori Mizuno
  • Patent number: 10903487
    Abstract: An electrochemical cell includes a metal containing anode M? capturing and releasing cations, a metal containing cathode M? and an electrolyte including an anion X? and a cation M?+. During the charge process, the electrolyte allows reversible reactions wherein the anion dissociates from the electrolyte and reacts with the metal cathode forming M?Xy. At the same time, cations M?+ from the electrolyte deposit on the anode side. The reverse process happens during the discharge process.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: January 26, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Ruigang Zhang, Chen Ling, Fuminori Mizuno
  • Publication number: 20200274187
    Abstract: 3-D magnesium voltaic cells have a magnesium anode coated on multiple opposing surfaces with a continuous protective/electrolyte layer that is ionically conductive and electronically insulating. The resulting protected 3-D magnesium anode is coated on multiple opposing surfaces with a continuous cathode layer that is electronically and ionically conductive, and includes a magnesium storage medium. Suitable magnesium anodes, in particular, magnesium foam anodes, can be made by pulsed galvanostatic deposition of magnesium on a copper substrate. The protective layer can be formed by electropolymerization of a suitable methylacrylate ester. The continuous cathode layer can be a slurry cathode having powders of an electronic conductor and a reversible magnesium storage component suspended in a magnesium electrolyte solution.
    Type: Application
    Filed: May 14, 2020
    Publication date: August 27, 2020
    Inventors: Fuminori Mizuno, Rana Mohtadi, Oscar Tutusaus, Nikhilendra Singh, Timothy S. Arthur, Ruidong Yang, Kensuke Takechi, Chen Ling, Ruigang Zhang
  • Patent number: 10680280
    Abstract: 3-D magnesium voltaic cells have a magnesium anode coated on multiple opposing surfaces with a continuous protective/electrolyte layer that is ionically conductive and electronically insulating. The resulting protected 3-D magnesium anode is coated on multiple opposing surfaces with a continuous cathode layer that is electronically and ionically conductive, and includes a magnesium storage medium. Suitable magnesium anodes, in particular, magnesium foam anodes, can be made by pulsed galvanostatic deposition of magnesium on a copper substrate. The protective layer can be formed by electropolymerization of a suitable methylacrylate ester. The continuous cathode layer can be a slurry cathode having powders of an electronic conductor and a reversible magnesium storage component suspended in a magnesium electrolyte solution.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 9, 2020
    Assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Fuminori Mizuno, Rana Mohtadi, Oscar Tutusaus, Nikhilendra Singh, Timothy S. Arthur, Ruidong Yang, Kensuke Takechi, Chen Ling, Ruigang Zhang
  • Patent number: 10553857
    Abstract: A cathode active composite containing a nanoparticle composite of an amorphous matrix containing vanadium, oxygen and sulfur and crystalline regions of vanadium and oxygen embedded in the matrix is provided. Electrochemical cells and a reversible battery having a cathode containing the cathode active composite is also provided. In specific embodiments the battery is a magnesium battery.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: February 4, 2020
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Fuminori Mizuno, Timothy S. Arthur
  • Patent number: 10446875
    Abstract: An electrolyte for Li-ion and other secondary electrochemical cells includes an FSI anion and at least one of methyltriethylphosphonium; trimethylisobutylphosphonium; methyltributylphosphonium; and trihexyltetradecylphosphonium. The electrolyte uniquely enables stable cell cycling even when water is present in the electrolyte at levels as high as 5000 ppm. Methyltriethylphosphonium and trimethylisobutylphosphonium-containing electrolytes are particularly effective in this water-stabilizing capacity.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: October 15, 2019
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Deakin University
    Inventors: Nikhilendra Singh, Timothy S. Arthur, Kensuke Takechi, Patrick Howlett, Maria Forsyth, Robert Kerr, Fuminori Mizuno
  • Publication number: 20190305312
    Abstract: A sodium-ion battery having a boron-doped graphene sheet as an anode active material is provided. The boron-doped graphene sheet is of formula BxCy, where x and y satisfy a relation of x+y=4, and x is a number larger than 0 and less than or equal to 1.
    Type: Application
    Filed: June 20, 2019
    Publication date: October 3, 2019
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Chen LING, Fuminori MIZUNO
  • Publication number: 20190097260
    Abstract: 3-D magnesium voltaic cells have a magnesium anode coated on multiple opposing surfaces with a continuous protective/electrolyte layer that is ionically conductive and electronically insulating. The resulting protected 3-D magnesium anode is coated on multiple opposing surfaces with a continuous cathode layer that is electronically and ionically conductive, and includes a magnesium storage medium. Suitable magnesium anodes, in particular, magnesium foam anodes, can be made by pulsed galvanostatic deposition of magnesium on a copper substrate. The protective layer can be formed by electropolymerization of a suitable methylacrylate ester. The continuous cathode layer can be a slurry cathode having powders of an electronic conductor and a reversible magnesium storage component suspended in a magnesium electrolyte solution.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 28, 2019
    Inventors: Fuminori Mizuno, Rana Mohtadi, Oscar Tutusaus, Nikhilendra Singh, Timothy S. Arthur, Ruidong Yang, Kensuke Takechi, Chen Ling, Ruigang Zhang
  • Patent number: 10177404
    Abstract: A magnesium-ion battery includes a first electrode including an active material and a second electrode. An electrolyte is disposed between the first electrode and the second electrode. The electrolyte includes a magnesium compound. The active material includes tin.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: January 8, 2019
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Nikhilendra Singh, Timothy Sean Arthur, Chen Ling, Masaki Matsui, Fuminori Mizuno
  • Publication number: 20180340000
    Abstract: An electrolyte for Li-ion and other secondary electrochemical cells includes an FSI anion and at least one of methyltriethylphosphonium; trimethylisobutylphosphonium; methyltributylphosphonium; and trihexyltetradecylphosphonium. The electrolyte uniquely enables stable cell cycling even when water is present in the electrolyte at levels as high as 5000 ppm. Methyltriethylphosphonium and trimethylisobutylphosphonium-containing electrolytes are particularly effective in this water-stabilizing capacity.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 29, 2018
    Inventors: Nikhilendra Singh, Timothy S. Arthur, Kensuke Takechi, Patrick Howlett, Maria Forsyth, Robert Kerr, Fuminori Mizuno
  • Patent number: 10069138
    Abstract: A cathode active composite containing an amorphous composite of vanadium oxide and an inorganic sulfide is provided. In one embodiment the composite contains vanadium pentoxide and phosphorous pentasulfide. In a further special embodiment, a cathode active material comprising a nanoparticle composite of an amorphous matrix containing vanadium, oxygen and sulfur and crystalline regions of vanadium and oxygen embedded in the matrix is provided. Electrochemical cells and a reversible battery having a cathode containing one of the cathode active composites are also provided. In specific embodiments the battery is a magnesium battery.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: September 4, 2018
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Fuminori Mizuno, Timothy S. Arthur