Patents by Inventor Naoki Ota

Naoki Ota 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: 20240055702
    Abstract: Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.
    Type: Application
    Filed: October 18, 2023
    Publication date: February 15, 2024
    Inventors: Naoki OTA, Takaaki FUKUSHIMA, Ricardo BAZZARELLA, Taison TAN
  • Publication number: 20240047772
    Abstract: In some aspects, a method of monitoring health of an electrochemical cell can include measuring a first anode voltage at a first anode tab from the plurality of anode tabs and a second anode voltage at a second anode tab from the plurality of anode tabs; measuring a first cathode voltage at a first cathode tab from the plurality of cathode tabs and a second cathode voltage at a second cathode tab from the plurality of cathode tabs; and calculating a first sense voltage, the first sense voltage being a difference between the first cathode voltage and the first anode voltage. In some embodiments, a second sense voltage can be calculated, the second sense voltage being a difference between the second cathode voltage and the second anode voltage. In some embodiments, a difference between the first sense voltage and the second sense voltage can be calculated.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 8, 2024
    Inventors: Chad Alan HARTZOG, Mark YOUNG, Ryan Michael LAWRENCE, Junzheng CHEN, Naoki OTA
  • Publication number: 20240039001
    Abstract: Embodiments described herein relate to electrochemical cells and electrodes with reinforced current collectors. In some embodiments, an electrode can include a current collector and an electrode material disposed on a first side of the current collector. A reinforcing layer can be disposed on a second side of the current collector. The reinforcing layer can have a modulus of elasticity sufficient to reduce the amount of stretching incident on the current collector during operation of the electrode. In some embodiments, a polymer film can be disposed on the reinforcing material. In some embodiments, the electrode can further include an adhesive polymer disposed between the reinforcing material and the polymer film. In some embodiments, the reinforcing material can have a thickness of less than about 10 ?m. In some embodiments, the reinforcing layer can include an adhesive polymer.
    Type: Application
    Filed: October 2, 2023
    Publication date: February 1, 2024
    Inventors: Yuki KUSACHI, Naoki OTA, Junzheng CHEN
  • Patent number: 11855250
    Abstract: Systems and methods for charging and discharging a plurality of batteries are described herein. In some embodiments, a system includes a battery module, an energy storage system electrically coupled to the battery module, a power source, and a controller. The energy storage system is operable in a first operating state in which energy is transferred from the energy storage system to the battery module to charge the battery module, and a second operating state in which energy is transferred from the battery module to the energy storage system to discharge the battery module. The power source electrically coupled to the energy storage system and is configured to transfer energy from the power source to the energy storage system based on an amount of stored energy in the energy storage system. The controller is operably coupled to the battery module and is configured to monitor and control a charging state of the battery module.
    Type: Grant
    Filed: January 3, 2023
    Date of Patent: December 26, 2023
    Assignee: 24M Technologies, Inc.
    Inventors: Tony L. Taylor, Naoki Ota, Taison Tan
  • Publication number: 20230411695
    Abstract: Embodiments described herein relate to electrode and electrochemical cell material recycling. Recycling electrode materials can save significant costs, both for quenching chemicals and for the costs of the materials themselves. Separation processes described herein include centrifuge separation, settler separation, flocculant separation, froth flotation, hydro cyclone, vibratory screening, air classification, and magnetic separation. In some embodiments, methods described herein can include any combination of froth flotation, air classification, and magnetic separation. In some embodiments, electrolyte can be separated from active and/or conductive materials via drying, subcritical or supercritical carbon dioxide extraction, solvent mass extraction (e.g., with non-aqueous or aqueous solvents), and/or freeze-drying. By applying these separation processes, high purity raw products can be isolated. These products can be re-used or sold to a third party.
    Type: Application
    Filed: June 21, 2023
    Publication date: December 21, 2023
    Inventors: Kai NARITA, Yuki KUSACHI, Naoki OTA, Junzheng CHEN
  • Patent number: 11839023
    Abstract: A three-dimensional molded circuit component, includes: a base member which includes a metal part and a resin part; a circuit pattern which is formed on the resin part; and a mounted component which is mounted on the base member, and is electrically connected to the circuit pattern. The resin part includes a resin thin film as a portion thereof, which includes a thermoplastic resin, of which a thickness is in the range of 0.01 mm to 0.5 mm, and which is formed on the metal part. The mounted component is arranged on the metal part via the resin thin film.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: December 5, 2023
    Assignee: MAXELL, LTD.
    Inventors: Atsushi Yusa, Satoshi Yamamoto, Akiko Kito, Hironori Ota, Hideto Goto, Naoki Usuki
  • Patent number: 11831026
    Abstract: Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: November 28, 2023
    Assignees: 24M Technologies, Inc., Kyocera Corporation
    Inventors: Naoki Ota, Takaaki Fukushima, Ricardo Bazzarella, Taison Tan
  • Publication number: 20230369603
    Abstract: In some aspects, an electrode described herein can include a resin configured to create a rise in impedance, a film coupled to a first side of the resin via an adhesive, a first portion of an electrode material disposed on a second side of the resin, and a second portion of the electrode material disposed on the second side of the resin, wherein the first portion of the current collector material does not physically contact the second portion of the current collector material. In some embodiments, the electrode can further include a first portion of a current collector material disposed between the resin and the first portion of the electrode material and a second portion of the current collector material disposed between the resin and the second portion of the electrode material.
    Type: Application
    Filed: May 10, 2023
    Publication date: November 16, 2023
    Inventors: Naoki OTA, Junzheng CHEN
  • Patent number: 11804595
    Abstract: Embodiments described herein relate generally to electrochemical cells having pre-lithiated semi-solid electrodes, and particularly to semi-solid electrodes that are pre-lithiated during the mixing of the semi-solid electrode slurry such that a solid-electrolyte interface (SEI) layer is formed in the semi-solid electrode before the electrochemical cell formation. In some embodiments, a semi-solid electrode includes about 20% to about 90% by volume of an active material, about 0% to about 25% by volume of a conductive material, about 10% to about 70% by volume of a liquid electrolyte, and lithium (as lithium metal, a lithium-containing material, and/or a lithium metal equivalent) in an amount sufficient to substantially pre-lithiate the active material. The lithium metal is configured to form a solid-electrolyte interface (SEI) layer on a surface of the active material before an initial charging cycle of an electrochemical cell that includes the semi-solid electrode.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: October 31, 2023
    Assignees: 24M Technologies, Inc., Kyocera Corporation
    Inventors: Naoki Ota, Mihai Duduta, Takaaki Fukushima, Hiuling Zoe Yu, Taison Tan, Hiromitsu Mishima
  • Patent number: 11796939
    Abstract: A conveying device includes a conveying member that conveys a spray-receiving medium to be sprayed with pressure sensitive adhesive particles having a pressure-induced phase transition property, containing at least a binder resin, and having a sulfur content of 0.1 mass % or more and 0.5 mass % or less relative to an entirety of the pressure sensitive adhesive particles as measured by X-ray fluorescence; and a removing member that contacts the conveying member and removes the pressure sensitive adhesive particles remaining on the conveying member.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: October 24, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Yasuhisa Morooka, Naoki Ota, Masataka Kuribayashi, Takafumi Koide, Yusuke Fukuda, Katsuyuki Kitajima, Makoto Kamisaki, Tatsuhiro Igarashi, Shota Oshima, Yuma Kubo
  • Publication number: 20230335748
    Abstract: Embodiments described herein relate generally to electrochemical cells with dendrite prevention mechanisms. In some embodiments, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, and a separator disposed between the anode and the cathode. In some embodiments, at least one of the anode or the cathode includes a first portion and a second portion, the second portion configured to prevent dendrite formation around an outside edge of the anode and/or the cathode. In some embodiments, the second portion can include an electroactive material disposed on the anode current collector around an outside edge of the anode current collector. In some embodiments, the second portion can include an electroactive material disposed on a pouch material around an outside edge of the anode current collector.
    Type: Application
    Filed: April 28, 2023
    Publication date: October 19, 2023
    Inventors: Junzheng CHEN, Naoki OTA, Xiaoming LIU
  • Publication number: 20230327178
    Abstract: Systems and methods for charging and discharging a plurality of batteries are described herein. In some embodiments, a system includes a battery module, an energy storage system electrically coupled to the battery module, a power source, and a controller. The energy storage system is operable in a first operating state in which energy is transferred from the energy storage system to the battery module to charge the battery module, and a second operating state in which energy is transferred from the battery module to the energy storage system to discharge the battery module. The power source electrically coupled to the energy storage system and is configured to transfer energy from the power source to the energy storage system based on an amount of stored energy in the energy storage system. The controller is operably coupled to the battery module and is configured to monitor and control a charging state of the battery module.
    Type: Application
    Filed: January 3, 2023
    Publication date: October 12, 2023
    Applicant: 24M Technologies, Inc.
    Inventors: Tony L. TAYLOR, Naoki OTA, Taison TAN
  • Publication number: 20230327077
    Abstract: Embodiments described herein relate generally to systems and methods for continuously and/or semi-continuously manufacturing semi-solid electrodes and batteries incorporating semi-solid electrodes. In some embodiments, the process of manufacturing a semi-solid electrode includes continuously dispensing a semi-solid electrode slurry onto a current collector, separating the semi-solid electrode slurry into discrete portions, and cutting the current collector to form a finished electrode.
    Type: Application
    Filed: April 4, 2023
    Publication date: October 12, 2023
    Applicant: 24M Technologies, Inc.
    Inventors: Raymond ZAGARS, Naoki OTA, Matthew R. TYLER, Richard K. HOLMAN, Ricardo BAZZARELLA, Mark DUDZIAK
  • Publication number: 20230307803
    Abstract: Apparatus, systems, and methods described herein relate to safety devices for electrochemical cells comprising an electrode tab electrically coupled to an electrode, the electrode including an electrode material disposed on a current collector. In some embodiments, a fuse can be operably coupled to or formed in the electrode tab. In some embodiments, the fuse can be formed by removing a portion of the electrode tab. In some embodiments, the fuse can include a thin strip of electrically resistive material configured to electrically couple multiple electrodes. In some embodiments, the current collector can include a metal-coated deformable mesh material such that the current collector is self-fusing. In some embodiments, the fuse can be configured to deform, break, melt, or otherwise discontinue electrical communication between the electrode and other components of the electrochemical cell in response to a high current condition, a high voltage condition, or a high temperature condition.
    Type: Application
    Filed: January 30, 2023
    Publication date: September 28, 2023
    Applicant: 24M Technologies, Inc.
    Inventors: Ricardo BAZZARELLA, Naoki OTA
  • Patent number: 11764353
    Abstract: Embodiments described herein relate generally to devices, systems and methods of producing high energy density electrodes including a first electrode material disposed on a current collector and having a first porosity, and a second electrode material disposed on the first electrode material and having a second porosity less than the first porosity. In some embodiments, the second electrode material includes a mixture of an active material and a conductive material in a liquid electrolyte. In some embodiments, the first electrode materials can have a different composition than the second electrode material. In some embodiments, the first electrode material can include a high-capacity material such as tin, silicon antimony, aluminum, or titanium oxide. In some embodiments, a lithium-containing material can be disposed between the first electrode material and the second electrode material.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: September 19, 2023
    Assignee: 24M Technologies, Inc.
    Inventors: Naoki Ota, Junzheng Chen, Ricardo Bazzarella
  • Publication number: 20230291063
    Abstract: Embodiments described herein relate generally to systems and methods for improving safety features in electrochemical cells. In particular, the systems and methods as described herein can solve safety issues concerning gas generation in electrochemical cells.
    Type: Application
    Filed: December 8, 2022
    Publication date: September 14, 2023
    Applicants: 24M Technologies, Inc., Kyocera Corporation
    Inventors: Richard HOLMAN, Ricardo BAZZARELLA, Takaaki FUKUSHIMA, Matt TYLER, Naoki OTA
  • Patent number: 11757129
    Abstract: Embodiments described herein relate generally to electrochemical cells having semi-solid electrodes that include a gel polymer additive such that the electrodes demonstrate longer cycle life while significantly retaining the electronic performance of the electrodes and the electrochemical cells formed therefrom. In some embodiments, a semi-solid electrode can include about 20% to about 75% by volume of an active material, about 0.5% to about 25% by volume of a conductive material, and about 20% to about 70% by volume of an electrolyte. The electrolyte further includes about 0.01% to about 1.5% by weight of a polymer additive. In some embodiments, the electrolyte can include about 0.1% to about 0.7% of the polymer additive.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: September 12, 2023
    Assignee: 24M Technologies, Inc.
    Inventors: Taison Tan, Naoki Ota, Jeffry Disko
  • Publication number: 20230282906
    Abstract: Embodiments described herein relate to electrochemical cells and electrochemical cell systems with thermal insulation systems, and methods of producing the same. An electrochemical cell can include an anode material disposed on an anode current collector, a cathode material disposed on a cathode current collector, a separator disposed between the anode material and the cathode material, and an insulating structure disposed around and containing the anode material, anode current collector, cathode material, cathode current collector, and the separator. The anode material and/or the cathode material includes a semi-solid electrode material. The semi-solid electrode material includes an active material and a conductive material in a liquid electrolyte. The liquid electrolyte has an electrolyte salt concentration of at least about 2.0 M. In some embodiments, the insulating structure includes a frame with a first wall and a second wall disposed therein.
    Type: Application
    Filed: March 7, 2023
    Publication date: September 7, 2023
    Inventors: Junzheng CHEN, Naoki OTA, Ryan Michael LAWRENCE, Jeffry DISKO, Chad Alan HARTZOG
  • Patent number: 11749804
    Abstract: Embodiments described herein relate to electrochemical cells with one or more electrodes coupled directly to a film material, and methods of making the same. In some embodiments, an electrochemical cell includes a first electrode material disposed on a first current collector, wherein the first current collector is coupled to a first non-conductive film. In some embodiments, a first tab is coupled to the first current collector. The electrochemical cell further includes a second electrode material capable of taking up or releasing ions during operation of the electrochemical cell. The second electrode material is coupled directly to a second non-conductive film. A second tab is electronically coupled to the second electrode material. A separator is disposed between the first electrode material and the second electrode material. In some embodiments, the second tab can be coupled directly to the second electrode material.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: September 5, 2023
    Assignee: 24M Technologies, Inc.
    Inventors: Junzheng Chen, Landon Oakes, Naoki Ota
  • Patent number: 11742525
    Abstract: Embodiments described herein relate to divided energy electrochemical cells and electrochemical cell systems. Divided energy electrochemical cells and electrochemical cell systems include a first electrochemical cell and a second electrochemical cell connected in parallel. Both electrochemical cells include a cathode disposed on a cathode current collector, an anode disposed on an anode current collector, and a separator disposed between the anode and the cathode. In some embodiments, the first electrochemical cell can have different performance properties from the second electrochemical cell. For example, the first electrochemical cell can have a high energy density while the second electrochemical cell can have a high power density. In some embodiments, the first electrochemical cell can have a battery chemistry, thickness, or any other physical/chemical property different from those properties of the second electrochemical cell.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: August 29, 2023
    Assignees: 24M Technologies, Inc., Kyocera Corporation
    Inventors: Junji Aranami, Junzheng Chen, Naoki Ota