Patents by Inventor IZURU SASAKI

IZURU SASAKI 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: 20240063374
    Abstract: A coated active material of the present disclosure includes an active material and a coating layer coating at least a part of the surface of the active material. The log differential pore volume of the coated active material at a pore diameter of 1.2 ?m is within a range of greater than or equal to 55 ?L/g and less than 152 ?L/g. The electrode material of the present disclosure includes a coating material and a solid electrolyte. A battery of the present disclosure includes a positive electrode including the electrode material, a negative electrode, and an electrolyte layer disposed between the positive electrode and the negative electrode.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 22, 2024
    Inventors: KAZUYA HASHIMOTO, IZURU SASAKI
  • Publication number: 20240063375
    Abstract: The coated active material of the present disclosure includes an active material and a coating layer coating at least a part of the surface of the active material. The coating layer includes a first coating material. When a coarse powder and a fine powder included in the powder of the coated active material are classified by airflow classification such that the mass ratio of the coarse powder and the fine powder is 9:1, the value of R2/R1 is less than 7.1, where R1 represents the mass content ratio of the first coating material in the coarse powder, and R2 represents the mass content ratio of the first coating material in the fine powder.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 22, 2024
    Inventors: KAZUYA HASHIMOTO, IZURU SASAKI
  • Publication number: 20240047656
    Abstract: An electrode includes an active material layer. The active material layer includes a composite particle and an imidazoline-based compound. The composite particle includes a core particle and a covering layer. The covering layer covers at least part of a surface of the core particle. The core particle includes an active material. The covering layer includes a first layer and a second layer. At least part of the first layer is interposed between the core particle and the second layer. The first layer includes a first solid electrolyte. The second layer includes a second solid electrolyte. The first solid electrolyte is a fluoride. The second solid electrolyte is a sulfide.
    Type: Application
    Filed: June 29, 2023
    Publication date: February 8, 2024
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Panasonic Holdings Corporation
    Inventors: Kazuya HASHIMOTO, Hiroki YABE, Izuru SASAKI, Hiroki KAMITAKE, Yuta SUGIMOTO
  • Publication number: 20240038972
    Abstract: An electrode material comprises a composite particle. The composite particle includes a core particle and a covering layer. The covering layer covers at least part of a surface of the core particle. The core particle includes an active material. The covering layer includes a first layer and a second layer. At least part of the first layer is interposed between the core particle and the second layer. The first layer includes a first solid electrolyte. The second layer includes a second solid electrolyte. The first solid electrolyte is a fluoride. The second solid electrolyte is a sulfide.
    Type: Application
    Filed: June 30, 2023
    Publication date: February 1, 2024
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Panasonic Holdings Corporation
    Inventors: Hiroki YABE, Izuru Sasaki, Kazuya Hashimoto, Yuta Sugimoto, Yusuke Nishio
  • Publication number: 20240030487
    Abstract: An electrode for an all-solid state battery contains composite particles of 100 parts by mass and an imidazoline-based compound of more than 0 parts by mass and 0.3 parts by mass or less. The composite particle includes a core particle and a coating layer. The coating layer covers at least a part of a surface of the core particle. The core particle contains an active material. The coating layer contains a fluoride solid electrolyte.
    Type: Application
    Filed: June 5, 2023
    Publication date: January 25, 2024
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, PANASONIC HOLDINGS CORPORATION
    Inventors: Masahiro IWASAKI, Kazuya HASHIMOTO, Izuru SASAKI, Yuta SUGIMOTO
  • Publication number: 20240006577
    Abstract: An active material, a solid electrolyte, and a solvent are hard-kneaded to prepare a first electrode material. A dispersion promotion component is added to the first electrode material to prepare a second electrode material. Slurry containing the second electrode material is prepared. An electrode is produced by applying the slurry to a surface of a base material. A composite body is formed by the solid electrolyte adhering to a surface of the active material. The dispersion promotion component promotes dispersion of the solid electrolyte in the solvent.
    Type: Application
    Filed: June 16, 2023
    Publication date: January 4, 2024
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Panasonic Holdings Corporation
    Inventors: Norihiro OSE, Kazuki MURAISHI, Hiroki YABE, Izuru SASAKI, Hiroki KAMITAKE
  • Publication number: 20230402607
    Abstract: An electrode material includes an electrode active material, a first solid electrolyte material, and a coating material. The first solid electrolyte material includes Li, M, and X and does not include sulfur, where M includes at least one selected from the group consisting of metal elements other than Li and metalloid elements, and X is at least one selected from the group consisting of Cl, Br, and I. The coating material is located on the surface of the electrode active material.
    Type: Application
    Filed: August 24, 2023
    Publication date: December 14, 2023
    Inventors: Tatsuya OSHIMA, Yuta SUGIMOTO, Izuru SASAKI, Akinobu MIYAZAKI
  • Publication number: 20230352690
    Abstract: Provided is a cathode material including a cathode active material; a coating layer which coats at least a part of a surface of the cathode active material, and which includes a first solid electrolyte material; and a second solid electrolyte material. The first solid electrolyte material includes Li, M, and X; however, does not include sulfur. M includes at least one element selected from the group consisting of metalloid elements and metal elements other than Li. X includes at least one element selected from the group consisting of Cl and Br.
    Type: Application
    Filed: July 7, 2023
    Publication date: November 2, 2023
    Inventors: TADAAKI MATSUMURA, IZURU SASAKI, YUTA SUGIMOTO
  • Patent number: 11777092
    Abstract: An electrode material includes an electrode active material, a first solid electrolyte material, and a coating material. The first solid electrolyte material includes Li, M, and X and does not include sulfur, where M includes at least one selected from the group consisting of metal elements other than Li and metalloid elements, and X is at least one selected from the group consisting of Cl, Br, and I. The coating material is located on the surface of the electrode active material.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: October 3, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tatsuya Oshima, Yuta Sugimoto, Izuru Sasaki, Akinobu Miyazaki
  • Patent number: 11777088
    Abstract: The present disclosure provides an anode material having further improved charge/discharge efficiency. The anode material according to the present disclosure includes an anode active material and a first solid electrolyte material. The first solid electrolyte material includes Li, M, and X, and does not include sulfur. M is at least one selected from the group consisting of metalloid elements and metal elements other than Li. X is at least one kind selected from the group consisting of Cl, Br, and I. The anode active material is an active material capable of storing and releasing lithium ions at a potential with respect to lithium of not less than 0.27 V.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: October 3, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yuta Sugimoto, Izuru Sasaki, Tatsuya Oshima, Akinobu Miyazaki
  • Publication number: 20230299283
    Abstract: In a method for producing a coated active material, a coating layer containing Nb is formed on at least a part of a surface of an active material. The method includes: transforming a slurry containing the active material and a coating solution containing Nb into droplets to obtain slurry droplets; drying the slurry droplets in a heated gas stream to obtain a precursor; and baking the precursor. When obtaining the slurry droplets, a temperature of the slurry before the slurry is transformed into droplets is 5° C. or more and less than 25° C.
    Type: Application
    Filed: February 27, 2023
    Publication date: September 21, 2023
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Panasonic Holdings Corporation
    Inventors: Kazuki MURAISHI, Masaru KUBOTA, Izuru SASAKI, Kenji NAGAO
  • Publication number: 20230299337
    Abstract: An all-solid-state battery comprises a power generation element and a restraint member. The restraint member applies a pressure of 0.5 MPa or less to the power generation element. The power generation element includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer. The solid electrolyte layer is interposed between the positive electrode layer and the negative electrode layer. The positive electrode layer includes a composite particle. The composite particle includes a positive electrode active material particle and a covering layer. The covering layer covers at least part of a surface of the positive electrode active material particle. The covering layer includes a sulfide solid electrolyte.
    Type: Application
    Filed: March 7, 2023
    Publication date: September 21, 2023
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Panasonic Holdings Corporation
    Inventors: Hiroshi NAGASE, Yusuke ITO, Hiroki YABE, Izuru SASAKI
  • Patent number: 11749803
    Abstract: Provided is a cathode material including a cathode active material; a coating layer which coats at least a part of a surface of the cathode active material, and which includes a first solid electrolyte material; and a second solid electrolyte material. The first solid electrolyte material includes Li, M, and X; however, does not include sulfur. M includes at least one element selected from the group consisting of metalloid elements and metal elements other than Li. X includes at least one element selected from the group consisting of Cl and Br.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: September 5, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tadaaki Matsumura, Izuru Sasaki, Yuta Sugimoto
  • Publication number: 20230268504
    Abstract: The present disclosure provides a cathode material which has improved charge/discharge efficiency; and a battery using the same. The cathode material includes a cathode active material and a first solid electrolyte material; and the first solid electrolyte material contains Li, M and X; however, does not include sulfur. M represents at least one element that is selected from the group consisting of metalloid elements and metal elements other than Li. X represents at least one selected from the group consisting of Cl and Br, and I. The cathode active material includes lithium iron phosphate.
    Type: Application
    Filed: May 2, 2023
    Publication date: August 24, 2023
    Inventors: HIRO KAMITAKE, AKIHIRO SAKAI, IZURU SASAKI, YUTA SUGIMOTO, AKINOBU MIYAZAKI
  • Publication number: 20230238515
    Abstract: A positive electrode includes a positive electrode current collector, an adhesive layer, and a positive electrode layer. The positive electrode current collector, the adhesive layer, and the positive electrode layer are stacked in this order. The adhesive layer contains spherical carbon and fibrous carbon as an electrically conductive material, and contains an acrylic binder as an adhesive.
    Type: Application
    Filed: December 9, 2022
    Publication date: July 27, 2023
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Panasonic Holdings Corporation
    Inventors: Ryuto SAKAMOTO, Kenji NAGAO, Izuru SASAKI, Yusuke NISHIO, Hiroki KAMITAKE
  • Publication number: 20230231184
    Abstract: A solid electrolyte includes lithium, phosphorus, sulfur, and halogen, in which, when the solid electrolyte is measured by TG-MS, a first peak derived from cyclic sulfur appears in a temperature range of 170° C. or higher and lower than 250° C., a second peak derived from the cyclic sulfur appears in a temperature range of 250° C. or higher and lower than 300° C., and a peak intensity P1 of the first peak is higher than a peak intensity P2 of the second peak.
    Type: Application
    Filed: November 17, 2022
    Publication date: July 20, 2023
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Panasonic Holdings Corporation
    Inventors: Hiroki YABE, Izuru SASAKI, Kenta NAGAMINE
  • Publication number: 20230231122
    Abstract: There is provided an electrode layer for an all-solid state battery, which contains an electrode active material and a sulfide solid electrolyte, where the sulfide solid electrolyte has an average particle diameter of less than 1 µm and the electrode layer contains an imidazoline-based dispersion material.
    Type: Application
    Filed: October 28, 2022
    Publication date: July 20, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akio MITSUI, Yasunari SUGITA, Kenji NAGAO, Izuru SASAKI, Yasutaka TSUTSUI, Takaaki TAMURA, Hiroki KAMITAKE
  • Publication number: 20230231124
    Abstract: Disclosed is a positive electrode material having inhibited increase in heat release when exposed to high temperature. The positive electrode material of the disclosure comprises a positive electrode active material, a first solid electrolyte and a second solid electrolyte, wherein the positive electrode active material comprises a lithium-containing oxide, the first solid electrolyte comprises Li and X as constituent elements and comprises no S, X is one or more elements selected from the group consisting of F, Cl, Br and I, the second solid electrolyte comprises Li and S as constituent elements, the first solid electrolyte covers at least part of the surface of the positive electrode active material, the second solid electrolyte contacts with the positive electrode active material across the first solid electrolyte, and the average covering thickness of the first solid electrolyte is 104 nm or greater.
    Type: Application
    Filed: July 2, 2021
    Publication date: July 20, 2023
    Applicants: Toyota Jidosha Kabushiki Kaisha, Panasonic Holdings Corporation
    Inventors: Toru SUGIYAMA, Shinya SHIOTANI, Takeshi USAMI, Akinobu MIYAZAKI, Izuru SASAKI, Norihito FUJINOKI
  • Publication number: 20230197960
    Abstract: A positive-electrode material includes a positive-electrode active material and a coating layer coating at least partially the surface of the positive-electrode active material and containing a first solid electrolyte. The first solid electrolyte is represented by Composition formula (1): Li?1M1?1X1?1 . . . Formula (1) where, in Composition formula (1), ?1, ?1, and ?1 are each independently a positive real number, M1 includes calcium, yttrium, and at least one rare-earth element other than yttrium, and X1 includes at least one selected from the group consisting of F, Cl, Br, and I.
    Type: Application
    Filed: January 12, 2023
    Publication date: June 22, 2023
    Inventors: IZURU SASAKI, TAKASHI KUBO, KAZUYA HASHIMOTO
  • Patent number: 11682764
    Abstract: The present disclosure provides a cathode material which has improved charge/discharge efficiency; and a battery using the same. The cathode material includes a cathode active material and a first solid electrolyte material; and the first solid electrolyte material contains Li, M and X; however, does not include sulfur. M represents at least one element that is selected from the group consisting of metalloid elements and metal elements other than Li. X represents at least one selected from the group consisting of Cl and Br, and I. The cathode active material includes lithium iron phosphate.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: June 20, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroki Kamitake, Akihiro Sakai, Izuru Sasaki, Yuta Sugimoto, Akinobu Miyazaki