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).

  • ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20190296390
    Abstract: According to one embodiment, an electrode is provided. The electrode includes an active material-containing layer containing active material particles, ferroelectric particles, and solid electrolyte particles. A ratio (FEcontact) of the number of the ferroelectric particles in contact with the active material particles relative to the number of the ferroelectric particles included in the active material-containing layer is 85% or more. A ratio (SEnon-contact) of the number of the solid electrolyte particles not in contact with the active material particles relative to the number of the solid electrolyte particles included in the active material-containing layer is 30% or more.
    Type: Application
    Filed: September 5, 2018
    Publication date: September 26, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuomi YOSHIMA, Wen Zhang, Yasuhiro Harada, Norio Takami
  • ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20190296327
    Abstract: According to one embodiment, an electrode is provided. An average particle size L1 of the primary particles of the active material and an average particle size L2 of primary particles of the carbon particles satisfy the following formula (1). L1/100?L2?L1/10??(1) A covering ratio of the active material by the carbon particles is not less than 80%. The covering ratio is a ratio of a mapping area of the carbon particles to a mapping area of the active material on a mapping image of a section of the active material-containing layer by Raman spectroscopy.
    Type: Application
    Filed: September 5, 2018
    Publication date: September 26, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuki ISE, Yasuhiro HARADA, Norio TAKAMI
  • SECONDARY BATTERY, BATTERY PACK, VEHICLE, AND STATIONARY POWER SUPPLY
    Publication number: 20190296400
    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: Application
    Filed: March 12, 2019
    Publication date: September 26, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yumiko Sekiguchi, Hayato Seki, Shinsuke Matsuno, Norio Takami
  • ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20190296351
    Abstract: According to one embodiment, an electrode is provided. The electrode includes a current collector and an active material-containing layer. The active material-containing layer includes an active material complex and a conductive agent. The active material complex includes particles of a niobium-titanium composite oxide and a carbon-containing layer. The carbon-containing layer covers at least one part of surfaces of the particles of the niobium-titanium composite oxide. A resistance value ?s·S satisfies the following formula (1). The resistance value ?s·S is calculated from a specific surface area S (m2/g) of the active material complex by a nitrogen BET method and a sheet resistance value ?s (?/m2) of the electrode.
    Type: Application
    Filed: September 5, 2018
    Publication date: September 26, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuomi YOSHIMA, Yasuhiro Harada, Norio Takami
  • SECONDARY BATTERY, BATTERY PACK, VEHICLE, AND STATIONARY POWER SUPPLY
    Publication number: 20190296344
    Abstract: According to one embodiment, provided is a secondary battery including an aqueous electrolyte, a positive electrode, and a negative electrode, where the negative electrode includes a negative electrode active material containing a Ti-containing composite oxide. At least one element A selected from the group consisting of Hg, Pb, Zn, and Bi is present on a surface of the negative electrode. An average of molar ratios (A/(A+Ti)) of the element A is more than or equal to 5% and less than or equal to 40%. Each of the molar ratios is a molar amount of the element A to a sum between the molar amount of the element A and a molar amount of Ti on the surface of the negative electrode, according to scanning electron microscopy-energy dispersive X-ray spectroscopy.
    Type: Application
    Filed: August 31, 2018
    Publication date: September 26, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hayato SEKI, Yumiko SEKIGUCHI, Kazuomi YOSHIMA, Yasuyuki HOTTA, Shinsuke MATSUNO, Norio TAKAMI
  • SECONDARY BATTERY, BATTERY PACK, VEHICLE, AND STATIONARY POWER SUPPLY
    Publication number: 20190296357
    Abstract: According to one embodiment, provided is a secondary battery including an aqueous electrolyte, a positive electrode, and a negative electrode. A compound containing an element A is present on at least a part of the surface of the negative electrode. The element A is at least one selected from the group consisting of Hg, Pb, Zn, and Bi.
    Type: Application
    Filed: August 31, 2018
    Publication date: September 26, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hayato SEKI, Yumiko SEKIGUCHI, Kazuomi YOSHIMA, Yasuyuki HOTTA, Shinsuke MATSUNO, Norio TAKAMI
  • ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20190296342
    Abstract: According to one embodiment, an electrode is provided. The electrode includes an active material-containing layer which contains an active material. The active material includes a plurality of primary particles containing a niobium-titanium composite oxide. The average crystallite diameter of the plurality of primary particles is 90 nm or more. The average particle size (D50) of the plurality of primary particles is in a range of 0.1 ?m to 5 ?m. The average value (FUave) of the roughness shape coefficient (FU) according to Formula (1) below is less than 0.70 in 100 primary particles among the plurality of primary particles.
    Type: Application
    Filed: August 30, 2018
    Publication date: September 26, 2019
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Yasuhiro Harada, Norio Takami, Kazuki Ise, Kazuomi Yoshima
  • Secondary battery, battery module, battery pack, and vehicle
    Patent number: 10424818
    Abstract: According to one embodiment, a secondary battery includes a positive electrode, a negative electrode and an aqueous electrolyte. The negative electrode includes a titanium-containing oxide. The aqueous electrolyte includes a sodium ion having a concentration of 3 mol/L or more and at least one type of first anion selected from the group consisting of [N(FSO2)2]?, SO32?, S2O32? and SCN?.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: September 24, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Norio Takami, Shinsuke Matsuno, Kazuki Ise
  • ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20190288330
    Abstract: According to one embodiment, an electrode is provided. The electrode includes a binder, and an active material represented by a general formula LixMyO2, where 0?x?1.33 and 0.5?y?1 are satisfied and M contains at least one element selected from the group consisting of Ni, Co, and Mn. The binder includes a polymer that contains a monomer containing a nitrogen atom. In the pore size distribution of the electrode according to mercury porosimetry, the following formula (1) is satisfied when the pore median diameter is represented by D [?m] and the pore specific surface area is represented by S [m2/g]: S/D?35??(1).
    Type: Application
    Filed: September 5, 2018
    Publication date: September 19, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsuya Sasakawa, Yasuhiro Harada, Norio Takami
  • ACTIVE MATERIAL, ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20190288283
    Abstract: According to one embodiment, an active material is provided. The active material includes a lithium niobium composite oxide represented by a general formula LixFe1?yM1yNb11?2M2zO29 (1) and having an orthorhombic crystal structure. In the general formula (1), 0?x?23, 0?y?1 and 0<z?6 are satisfied. Each of M1 and M2 independently includes at least one element selected from a group consisting of Fe, Mg, Al, Cu, Mn, Co, Ni, Zn, Sn, Ti, Ta, V, and Mo.
    Type: Application
    Filed: August 31, 2018
    Publication date: September 19, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuhiro Harada, Norio Takami, Kazuki Ise
  • BATTERY MODULE, BATTERY PACK, VEHICLE, AND STATIONARY POWER SUPPLY
    Publication number: 20190288327
    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: Application
    Filed: September 5, 2018
    Publication date: September 19, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasunobu YAMASHITA, Shinsuke MATSUNO, Norio TAKAMI, Hiroki INAGAKI
  • SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20190288348
    Abstract: According to one embodiment, a secondary battery is provided. The secondary battery includes a negative electrode. The negative electrode includes an active material composite. The active material composite includes active material particles and a layer covering at least a portion of surfaces of the active material particles. The active material particles include titanium-containing oxide particles. The layer contains N and Si. The layer includes a first surface facing the at least the portion of surfaces of the active material particles and a second surface defining a layer thickness from the first surface. An N concentration in the layer decreases from the first surface to the second surface. A Si concentration in the layer increases from the first surface to the second surface.
    Type: Application
    Filed: September 5, 2018
    Publication date: September 19, 2019
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Taro FUKAYA, Takashi KISHI, Kazuki ISE, Kazuomi YOSHIMA, Yasunobu YAMASHITA, Yasuhiro HARADA, Norio TAKAMI
  • SECONDARY BATTERY, BATTERY PACK, VEHICLE, AND STATIONARY POWER SUPPLY
    Publication number: 20190288332
    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: Application
    Filed: August 31, 2018
    Publication date: September 19, 2019
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yasuyuki Hotta, Shinsuke Matsuno, Norio Takami
  • Nonaqueous electrolyte battery, battery pack, and vehicle
    Patent number: 10411250
    Abstract: According to one embodiment, a nonaqueous electrolyte battery including a negative electrode, a positive electrode, and a nonaqueous electrolyte is provided. The negative electrode contains a negative electrode active material. The positive electrode contains a positive electrode active material. The negative electrode active material contains a titanium-containing composite oxide. The positive electrode active material contains secondary particles of a first composite oxide and primary particles of a second composite oxide. The first composite oxide is represented by a general formula LiMn1?x?yMgxFeyPO4 (0<x?0.1, 0<y?0.3). The second composite oxide is represented by a general formula LiCo1?a?bNiaMnbO2 (0?a, b?0.5).
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: September 10, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Keigo Hoshina, Yasunobu Yamashita, Yoshiyuki Isozaki, Norio Takami
  • Core shell active material of monoclinic niobium-titanium composite oxide, nonaqueous electrolyte battery and battery pack
    Patent number: 10411256
    Abstract: According to one embodiment, there is provided an active material. The active material includes particles. Each of the particles includes a core phase and a shell phase surrounding at least a part of the core phase. The core phase includes a first monoclinic niobium-titanium composite oxide. The shell phase includes a second monoclinic niobium-titanium composite oxide. An oxidation number of titanium in the core phase is larger than an oxidation number of titanium in the shell phase, and/or an oxidation number of niobium in the core phase is larger than an oxidation number of niobium in the shell phase.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: September 10, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Wen Zhang, Keigo Hoshina, Yasuhiro Harada, Kazuki Ise, Norio Takami
  • Laminate, secondary battery, battery pack, and vehicle
    Patent number: 10396331
    Abstract: A laminate that includes an active material layer including a plural of active material particles, a separator layered on the active material layer, and an organic electrolyte. The separator includes a first surface and a second surface opposed to the first surface, and includes particles containing an inorganic compound having lithium ion conductivity at 25° C. of 1×10?10 S/cm or more, and a ratio (L/Rmax) of a thickness L to a radius Rmax is greater than zero and less than or equal to five, where L and Rmax are defined in the application.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: August 27, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuomi Yoshima, Yasuhiro Harada, Norio Takami
  • INORGANIC COMPOUND PARTICLES, COMPOSITE ELECTROLYTE, COMPOSITE ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
    Publication number: 20190260075
    Abstract: A plurality of inorganic compound particles contain a solvent, wherein a weight ratio of the solvent to the inorganic compound particles is greater than or equal to 8 weight % and less than or equal to 25 weight %; the inorganic compound particles having a lithium ion conductivity at 25° C. that is greater than or equal to 1×10-10 S/cm; and an average particle diameter of the inorganic compound particles is greater than or equal to 0.1 ?m and less than or equal to 5 ?m.
    Type: Application
    Filed: August 31, 2018
    Publication date: August 22, 2019
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuomi YOSHIMA, Yasuhiro HARADA, Norio TAKAMI
  • Non-aqueous electrolyte battery, non-aqueous electrolyte battery pack, and vehicle
    Patent number: 10388981
    Abstract: A non-aqueous electrolyte battery is provided with a bipolar electrode unit and an insulating layer including non-aqueous electrolyte. The insulating layer covers positive and negative electrode active material layers on both side surfaces of a current collector of a bipolar electrode of the unit. The unit is folded at every predetermined length to have flat portions arranged to face each other and bent portions arranged between the flat portions to connect the flat portions. A thickness of one part of the insulating layer of the electrode, the one part being positioned on an outer side surface of each bent portion, is set to be larger than a thickness of the other part of the insulating layer, the other part being positioned on each flat portion.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: August 20, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuomi Yoshima, Yasuhiro Harada, Norio Takami
  • Active substance used for nonaqueous electrolyte battery
    Patent number: 10361429
    Abstract: According to one embodiment, there is provided an active substance. The active substance contains active material particles. The active material particles comprise a compound represented by the formula: Ti1-xM1xNb2-yM2yO7. The active material particles has a peak A attributed to a (110) plane which appears at 2? ranging from 23.74 to 24.14°, a peak B attributed to a (003) plane which appears at 2? ranging from 25.81 to 26.21° and a peak C attributed to a (602) plane which appears at 2? ranging from 26.14 to 26.54° in an X-ray diffraction pattern of the active material particles. An intensity IA of the peak A, an intensity IB of the peak B, and an intensity IC of the peak C satisfy the relation (1): 0.80?IB/IA?1.12; and the relation (2) IC/IB?0.80.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: July 23, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuki Ise, Yasuhiro Harada, Hiroki Inagaki, Norio Takami
  • Active material, nonaqueous electrolyte battery, battery pack, and vehicle
    Patent number: 10361430
    Abstract: According to one embodiment, an active material is provided. This active material includes active material particles each allowing lithium to be inserted thereinto and extracted therefrom in the range of 0.5 V to 2V (vs. Li+/Li), and carbon material layers at least partially coating the active material particles. The active material has a BET specific surface area S of 2 m2/g to 20 m2/g in accordance with a nitrogen adsorption method. Between the BET specific surface area S and the proportion M (mass %) of the mass of the carbon material layers to the total mass of the active material particles and carbon material layers, the ratio of S/M (m2/g) meets 0.5?S/M?5.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: July 23, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuki Ise, Yasuhiro Harada, Norio Takami