Patents by Inventor Norio Takami

Norio Takami 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).

  • Secondary battery, battery pack, vehicle, and stationary power supply
    Patent number: 10868340
    Abstract: According to one embodiment, there is provided a secondary battery including a positive electrode, a negative electrode, and an aqueous electrolyte. The negative electrode contains a titanium-containing oxide. The aqueous electrolyte contains a solvent and alkali metal ions or alkaline earth metal ions, the solvent containing water and a water-soluble organic solvent. An interfacial tension of the aqueous electrolyte is 37 mN/m or less.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: December 15, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yumiko Sekiguchi, Hayato Seki, Shinsuke Matsuno, Norio Takami
  • Secondary battery, battery pack, vehicle, and stationary power supply
    Patent number: 10868331
    Abstract: According to one embodiment, a secondary battery is provided. The separator includes a porous self-supporting film, a solid electrolyte layer, and a first binder. The solid electrolyte layer is provided on one main surface of the porous self-supporting film. The porous self-supported film and the solid electrolyte layer are adhered with the first binder. The first binder exists on both of the one main surface and another main surface of the porous self-supporting film. The solid electrolyte layer includes solid electrolyte particles and a second binder. The solid electrolyte particles have alkali metal ions conductivity. The polymeric material of the second bonder is a same as the polymeric material of the first material.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: December 15, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuyuki Hotta, Shinsuke Matsuno, Norio Takami
  • Secondary battery with separator having a solid electrolyte, battery pack, and vehicle
    Patent number: 10862092
    Abstract: According to one embodiment, a separator is provided. The separator is selectively permeable to monovalent cations and includes a first surface and a second surface which is a reverse surface to the first surface. A contact angle ?1 of the first surface with respect to an aqueous electrolyte is different from a contact angle ?2 of the second surface with respect to the aqueous electrolyte.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: December 8, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuomi Yoshima, Norio Takami, Shinsuke Matsuno
  • Active material containing an Nb2TiO7 phase, electrode, secondary battery, battery pack, and vehicle
    Patent number: 10862118
    Abstract: An active material includes an Nb2TiO7 phase and at least one Nb-rich phase selected from an Nb10Ti2O29 phase, an Nb14TiO37 phase, and an Nb24TiO64 phase. The active material satisfies a peak intensity ratio represented by the following Formula (1): 0<IB/IA?0.25 (1). In Formula (1), IA is a peak intensity of the maximum peak attributed to the Nb2TiO7 phase and appealing at 2? of 26.0±0.1° in a wide angle X-ray diffraction pattern under CuK? rays as an X-ray source, and IB is a peak intensity of the maximum peak attributed to the at least one Nb-rich phase and appearing at 2? of 24.9±0.2° in the diffraction pattern.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: December 8, 2020
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Yasuhiro Harada, Norio Takami, Tetsuya Sasakawa, Yusuke Namiki, Yasunobu Yamashita
  • Active material, nonaqueous electrolyte battery, battery pack, and vehicle
    Patent number: 10854931
    Abstract: According to one embodiment, an active material is provided. This active material includes active material particles containing orthorhombic Na-containing niobium titanium composite oxide, and satisfies the following formula (1): 1?A5/A0??(1) where A5 is a mole content ratio of a Li mole content L5 to a total of a Ti mole content T5 and a Nb mole content N5, and A0 is a mole content ratio of a Li mole content L0 to a total of a Ti mole content T0 and a Nb mole content N0.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: December 1, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Keigo Hoshina, Fumihiro Tejima, Yorikazu Yoshida, Yasuhiro Harada, Norio Takami
  • Solid electrolyte separator, secondary battery, battery pack, and vehicle
    Patent number: 10854910
    Abstract: According to one embodiment, a solid electrolyte separator is provided. The solid electrolyte separator is a sheet containing a solid electrolyte having a lithium ion conductivity. A first lithium ion conductivity in a peripheral edge region along an in-plane direction of the sheet is lower than a second lithium ion conductivity in a central region along the in-plane direction of the sheet.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: December 1, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoko Sugizaki, Takashi Kishi, Yasuhiro Harada, Norio Takami
  • Assembled battery, battery pack and vehicle
    Patent number: 10847774
    Abstract: An assembled battery includes non-aqueous electrolyte batteries laminated with each other and at least one lead being interposed between two adjacent batteries. The lead is connected to the two adjacent batteries and has an area larger than that of a side surface of each battery, the side surface being opposing to the lead. Each battery includes at least one positive electrode, at least one negative electrode and a non-aqueous electrolyte. The positive electrode includes a current collector and positive electrode active material layers provided on both side surfaces of the collector. The negative electrode includes a negative electrode current collector and negative electrode active material layers provided on both side surfaces of the collector.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: November 24, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuomi Yoshima, Yasuhiro Harada, Norio Takami
  • Secondary battery, battery pack, and vehicle
    Patent number: 10840563
    Abstract: In one embodiment, a secondary battery includes, electrode groups, an insulating sheet, and a container member. The insulating sheet is disposed between the electrode groups. At least part of the insulating sheet is joined to the container member. The container member covers the outside of a stack having the electrode groups and the insulating sheet.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 17, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsuya Sasakawa, Kazuomi Yoshima, Yasuhiro Harada, Norio Takami
  • Secondary battery, battery pack, and vehicle
    Patent number: 10840549
    Abstract: A secondary battery includes a positive electrode, a negative electrode arranged opposite to the positive electrode, a composite electrolyte interposed between the positive electrode and the negative electrode, the composite electrolyte containing an organic electrolyte and at least one of inorganic compound particles and organic compound particles; and a fibrous substance existed in both of the composite electrolyte and at least one of the positive electrode and the negative electrode.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: November 17, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takuya Iwasaki, Norio Takami, Yasuhiro Harada
  • SOLID ELECTROLYTE, MANUFACTURING METHOD OF SOLID ELECTROLYTE, BATTERY AND BATTERY PACK
    Publication number: 20200343584
    Abstract: According to one embodiment, a solid electrolyte includes a sintered body of ceramic grains. The sintered body includes a crystal plane having an ion conducting path. The crystal plane is oriented in a direction which intersects at least one surface of the solid electrolyte.
    Type: Application
    Filed: July 8, 2020
    Publication date: October 29, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuhiro HARADA, Norio TAKAMI, Hiroki INAGAKI
  • Battery module, battery pack, vehicle, and stationary power supply
    Patent number: 10797341
    Abstract: According to one embodiment, a battery module includes a battery unit. The battery unit includes a nonaqueous lithium ion battery including a nonaqueous electrolyte, and an aqueous lithium ion battery including an electrolytic solution in which an electrolyte is dissolved in an aqueous solvent. In the battery unit, the aqueous lithium ion battery is connected in parallel to the nonaqueous lithium ion battery.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: October 6, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasunobu Yamashita, Shinsuke Matsuno, Norio Takami, Hiroki Inagaki
  • Secondary battery, battery pack, vehicle, and stationary power supply
    Patent number: 10790543
    Abstract: According to one embodiment, a secondary battery is provided. The separator includes a porous self-supporting film, a solid electrolyte layer, and a first binder. The solid electrolyte layer is provided on one main surface of the porous self-supporting film. The porous self-supported film and the solid electrolyte layer are adhered with the first binder. The first binder exists on both of the one main surface and another main surface of the porous self-supporting film. The solid electrolyte layer includes solid electrolyte particles and a second binder. The solid electrolyte particles have alkali metal ions conductivity. The polymeric material of the second bonder is a same as the polymeric material of the first material.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: September 29, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuyuki Hotta, Shinsuke Matsuno, Norio Takami
  • ELECTRODE, NON-AQUEOUS ELECTROLYTE BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20200303721
    Abstract: According to one embodiment, an electrode includes a current collector and an active material layer. The active material layer is disposed on at least one of faces of the current collector. The active material layer comprises active materials which include at least a cobalt-containing oxide and a lithium nickel manganese oxide. A ratio of a weight of the cobalt-containing oxide to a total of weights of the cobalt-containing oxide and the lithium nickel manganese oxide is 5 wt % or more and 40 wt % or less.
    Type: Application
    Filed: October 30, 2019
    Publication date: September 24, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yasunobu YAMASHITA, Shinsuke MATSUNO, Norio TAKAMI, Hiroki INAGAKI
  • SECONDARY BATTERY, BATTERY PACK, VEHICLE, AND STATIONARY POWER SOURCE
    Publication number: 20200303783
    Abstract: A secondary battery includes a positive electrode, a negative electrode and an electrolyte containing aqueous electrolyte. The negative electrode is provided with a negative electrode current collector having a compound including aluminum, and a negative electrode active material including titanium on a granule surface of the negative electrode current collector. A ratio of an atomic concentration of aluminum atoms to sum of atomic concentrations of aluminum atoms and titanium atoms on a surface of the negative electrode ({Al atomic concentration/(Al atomic concentration+Ti atomic concentration)}×100) is 3 atm % or more and 30 atm % or less.
    Type: Application
    Filed: December 18, 2019
    Publication date: September 24, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yumiko SEKIGUCHI, Shinsuke MATSUNO, Norio TAKAMI
  • SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20200303765
    Abstract: According to one embodiment, provided is a secondary battery including a positive electrode, a negative electrode capable of allowing lithium ions to be inserted and to be extracted, and an inorganic solid-containing layer. The inorganic solid-containing layer is disposed between the positive electrode and the negative electrode. The inorganic solid-containing layer contains a mixed solvent, a lithium salt dissolved in the mixed solvent, and inorganic solid particles. The mixed solvent includes a fluorinated carbonate and a fluorinated ether.
    Type: Application
    Filed: September 5, 2019
    Publication date: September 24, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Norio TAKAMI, Takashi KISHI, Kazuomi YOSHIMA, Yasuhiro HARADA
  • ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20200303730
    Abstract: According to one embodiment, an electrode is provided. A length of a first active material portion along a first direction is within a range of 0.7T or more and 0.95T or less with respect to a thickness T of an active material-containing layer. The first direction is parallel to a thickness direction. A second active material portion further contains solid electrolyte particles. A ratio E1/E2 is 0 or more and 0.01 or less. The ratio E1/E2 represents a ratio of a content E1 of the solid electrolyte particles per unit area in the first active material portion (including 0) to a content E2 of the solid electrolyte particles per unit area in the second active material portion.
    Type: Application
    Filed: September 10, 2019
    Publication date: September 24, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Keigo HOSHINA, Kazuomi Yoshima, Tomoko Sugizaki, Tomoe Kusama, Tetsuya Sasakawa, Yasuhiro Harada, Norio Takami
  • SOLID ELECTROLYTE MATERIAL, ELECTRODE, BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20200295400
    Abstract: According to one embodiment, provided is a solid electrolyte material including an oxide, the oxide including an octahedral coordination structure that includes a metal element M and oxygen atoms arranged centering on the metal element M. The metal element M includes Nb and Ta. Amass ratio ?Ta/?Nb of a mass ?Ta of Ta to a mass ?Nb of Nb is within a range of 5×10?5??Ta/?Nb?3×10?3.
    Type: Application
    Filed: September 9, 2019
    Publication date: September 17, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiro HARADA, Tomoe KUSAMA, Norio TAKAMI, Kazuomi YOSHIMA
  • SECONDARY BATTERY, BATTERY PACK, VEHICLE, AND STATIONARY POWER SUPPLY
    Publication number: 20200295403
    Abstract: According to one embodiment, there is provided a secondary battery including a negative electrode, a positive electrode, a first electrolyte, a second electrolyte, and a hydrogel electrolyte. The first electrolyte is in contact with at least a part of the negative electrode. The second electrolyte is in contact with at least a part of the positive electrode. The hydrogel electrolyte includes a gel having a chemically crosslinked structure. A first electrolyte composition of the first electrolyte is different from a second electrolyte composition of the second electrolyte. At least one of the first electrolyte and the second electrolyte includes an aqueous solvent, the aqueous solvent including water. At least a part of at least one of the negative electrode and the positive electrode overlaps at least a part of the hydrogel electrolyte.
    Type: Application
    Filed: August 30, 2019
    Publication date: September 17, 2020
    Applicant: KABUSHIKI KAISHA TOSHIA
    Inventors: Yasuyuki HOTTA, Shinsuke MATSUNO, Norio TAKAMI
  • ACTIVE MATERIAL, ELECTRODE, SECONDARY BATTERY, BATTERY PACK AND VEHICLE
    Publication number: 20200295361
    Abstract: According to one embodiment, provided is an active material including monoclinic niobium titanium composite oxide particles, and carbon fibers with which at least a part of surfaces of the monoclinic niobium titanium composite oxide particles is covered. The monoclinic niobium titanium composite oxide particles satisfy 1.5?(?/?)?2.5. The monoclinic niobium titanium composite oxide particles have an average primary particle size of 0.05 ?m to 2 ?m. The carbon fibers contain one or more metal elements selected from the group consisting of Fe, Co and Ni, and satisfy 1/10000?(?/?)?1/100. The carbon fibers have an average fiber diameter in the range of 5 nm to 100 nm.
    Type: Application
    Filed: September 5, 2019
    Publication date: September 17, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Norio TAKAMI, Keigo Hoshina, Mitsuru Ishibashi, Yoshihiko Nakano, Yasuhiro Harada
  • ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20200295375
    Abstract: According to one embodiment, an electrode is provided. The electrode includes a current collector, an intermediate layer containing a material having electrical conductivity, and an active material-containing layer containing active material particles, in this order. The intermediate layer includes at least one opening and satisfies the following formula (1). 1?S/r?1700??(1) In formula (1) above, S is the ratio SB/SA of the total area SB of the at least one opening with respect to a unit area SA in the intermediate layer, and r is an average primary particle size of the active material particles.
    Type: Application
    Filed: September 4, 2019
    Publication date: September 17, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuomi YOSHIMA, Yasuhiro HARADA, Norio TAKAMI