Patents by Inventor Mitsuhiro Hibino

Mitsuhiro Hibino 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: 20240208840
    Abstract: A composite oxide comprising lithium and a transition metal, wherein at least a portion of the composite oxide has a crystal lattice of a hexagonal lattice, and an electron beam diffraction image obtained by irradiating an electron beam from a<2 ?2 1> direction includes a first diffraction spot group and a second diffraction spot group, n being an integer of 1 or more, the first diffraction spot group has a {?3 1 8/n} spot and a {1 2 2/n} spot that appear in correspondence with a period of a unit lattice of the hexagonal lattice, and the second diffraction spot group has six spots that appear between a central {0 0 0} spot and the {?3 1 8/n} spot with a 1/7 period, and six spots that appear between the central {0 0 0} spot and the {1 2 2/n} spot with a 1/7 period.
    Type: Application
    Filed: April 28, 2022
    Publication date: June 27, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroki Saito, Shogo Esaki, Mitsuhiro Hibino
  • Publication number: 20240072252
    Abstract: A positive electrode for secondary batteries includes a positive electrode current collector, and a positive electrode mixture layer provided on a surface of the positive electrode current collector. The positive electrode mixture layer contains a positive electrode active material, a conductive agent, a polysaccharide, and a resin other than the polysaccharide, and at least part of surfaces of the positive electrode active material, the conductive agent, and the resin is coated with the polysaccharide.
    Type: Application
    Filed: December 23, 2021
    Publication date: February 29, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Ryuichi Natsui, Kensuke Nakura, Mitsuhiro Hibino
  • Patent number: 11901593
    Abstract: A charge/discharge method of an air battery is a charge/discharge method of an air battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte liquid containing a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, the nonaqueous electrolyte liquid being interposed between the positive electrode and the negative electrode, the charge/discharge method includes: discharging the air battery; and supplying a charging liquid different from the nonaqueous electrolyte liquid from the outside to the inside of the air battery so that a discharge product generated by the discharging is desorbed from the positive electrode while being in the form of a solid.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: February 13, 2024
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masako Yokoyama, Masahisa Fujimoto, Mitsuhiro Hibino
  • Publication number: 20240021813
    Abstract: A positive electrode active material for nonaqueous electrolyte secondary batteries according to one embodiment of the present invention contains a lithium transition metal composite oxide which is represented by composition formula LixMnyNizTiaMbO2-cFc (wherein M represents at least one element that is selected from among P, Co, Si, Sr, Nb, W, Mo, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K, Bi and Al; 1.0<x?1.2; 0.4?y?0.8; 0?z?0.4; 0<a?0.03; 0?b?0.05; 0<c?0.1; and (x+y+z+a+b)?2).
    Type: Application
    Filed: December 23, 2021
    Publication date: January 18, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shogo Esaki, Ryuichi Natsui, Junko Matsushita, Mitsuhiro Hibino, Kensuke Nakura
  • Publication number: 20230402594
    Abstract: This positive electrode active material for nonaqueous electrolyte secondary batteries contains a lithium transition metal composite oxide that is represented by composition formula LixMnyNizPaMbO2-cFc(wherein M represents at least one element that is selected from among Ti, Co, Si, Sr, Nb, W, Mo, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K and Bi; 1.0<x?1.2; 0.4?y?0.8; 0?z?0.4; 0<a<0.01; 0<b<0.05; 0<c<0.1; and (x+y+z+a+b)?2).
    Type: Application
    Filed: September 14, 2021
    Publication date: December 14, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Ryuichi Natsui, Junko Matsushita, Mitsuhiro Hibino, Kensuke Nakura
  • Publication number: 20230378451
    Abstract: A positive electrode active material for a secondary battery includes a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to a space group Fm-3m, wherein the lithium metal composite oxide includes Cu and a transition metal element M1 other than Li and Cu. The lithium metal composite oxide is preferably represented by a composition formula LiaMnbCucA2dO2-eFe (where A2 is at least one element excluding Li, Mn, Cu, O, and F, and 0<a?1.35, 0.4?b?0.9, 0<c?0.2, 0?d?0.2, 0?e?0.66, 1.75?a+b+c+d?2 are satisfied).
    Type: Application
    Filed: September 14, 2021
    Publication date: November 23, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Jin Zhang, Issei Ikeuchi, Mitsuhiro Hibino, Kensuke Nakura
  • Publication number: 20230369579
    Abstract: A positive electrode active material for a secondary battery including: a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to a space group Fm-3m. The lithium metal composite oxide contains an element A1 of at least one selected from the group consisting of Ca, Al, and Si, and in the lithium metal composite oxide, a total of Ca, Al, and Si contents relative to a total of the lithimn metal composite oxide is 10 to 1000 ppm by mass.
    Type: Application
    Filed: September 14, 2021
    Publication date: November 16, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Jin Zhang, Issei Ikeuchi, Mitsuhiro Hibino, Kensuke Nakura
  • Publication number: 20230361289
    Abstract: This positive electrode active material for nonaqueous electrolyte secondary batteries comprises: a lithium transition metal composite oxide which is represented by general formula LixM12?yM2yM3zOwFv (wherein 1?x?1.2, 0<y<1, 0.001?z?0.1, 0?v?0.2, 3.8?w+v?4.2, M1 represents one or more elements selected from the group consisting of Ni, Co and Mn, M2 represents one or more elements selected from the group consisting of Ti, Fe, Al, Ge and Si, and M3 represents one or more elements selected from the group consisting of Ca and Sr), while containing M1 and M2; and a coating layer which is formed on at least a part of the surface of the lithium transition metal composite oxide, while containing M2 and M3.
    Type: Application
    Filed: April 20, 2021
    Publication date: November 9, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroshi Kawada, Akiko Murata, Mitsuhiro Hibino
  • Publication number: 20230335726
    Abstract: A negative electrode active material for a secondary battery includes an intermetallic compound having a cage structure. The cage structure is constituted of at least one first atom located within a cage, and a plurality of second atoms arranged in a cage-like form so as to surround the first atom. The first atom is a zirconium atom, and the plurality of the second atoms include 8 or more and 16 or less silicon atoms.
    Type: Application
    Filed: August 24, 2021
    Publication date: October 19, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kazuko Asano, Yukihiro Oki, Nanami Takeda, Mitsuhiro Hibino
  • Publication number: 20230335728
    Abstract: A positive electrode active material for a secondary battery includes a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to a space group Fm-3m, wherein the lithium metal composite oxide includes Ti and a metal element M1 other than Li and Ti. The metal element M1 preferably further includes at least one selected from the group consisting of Fe, Ge, Si, and Ga.
    Type: Application
    Filed: September 14, 2021
    Publication date: October 19, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Jin Zhang, Issei Ikeuchi, Mitsuhiro Hibino, Kensuke Nakura
  • Publication number: 20230335729
    Abstract: A positive electrode active material for a secondary battery has a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to a space group Fm-3m, and the crystal structure has a vacancy to which no lithium or metal atom is disposed. For the lithium metal composite oxide, for example, a composite oxide represented by a composition formula LiaMnbMcO2-dFd (where M is at least one metal element excluding Li and Mn, 0<a?1.4, 0.4?b?0.95, 0?c?0.2, 0?d?0.66, and 1.75?a+b+c<2 are satisfied) can be used.
    Type: Application
    Filed: July 7, 2021
    Publication date: October 19, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Jin Zhang, Issei Ikeuchi, Mitsuhiro Hibino, Kensuke Nakura
  • Publication number: 20230275220
    Abstract: A negative electrode active material for a secondary battery includes an intermetallic compound having a cage structure. The cage structure is constituted of at least one first atom located within a cage, and a plurality of second atoms arranged in a cage-like form so as to surround the first atom. The first atom is a cerium atom, and the plurality of the second atoms include 8 or more and 17 or less silicon atoms.
    Type: Application
    Filed: August 24, 2021
    Publication date: August 31, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yukihiro Oki, Kazuko Asano, Nanami Takeda, Mitsuhiro Hibino
  • Publication number: 20230141498
    Abstract: Provided is a lithium ion battery with a positive electrode having a positive electrode mixture layer that contains a positive electrode active material, and a negative electrode having a negative electrode mixture layer that contains a negative electrode active material, the lithium ion battery being charged and discharged by the movement of lithium ions between the positive electrode and the negative electrode. The negative electrode mixture layer contains a negative electrode active material represented by general formula M3Me2X7 (in the formula, M includes at least one of La and Ca; Me includes at least one of Mn, Ni, Fe, and Co; and X includes at least one of Ge, Si, Sn, and Al), and a binding agent that contains cyano groups, the ratio of the binding agent in the negative electrode mixture layer being 0.5-7.0 mass% (inclusive).
    Type: Application
    Filed: January 21, 2021
    Publication date: May 11, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kazuko Asano, Yukihiro Oki, Nanami Takeda, Mitsuhiro Hibino
  • Publication number: 20230110150
    Abstract: This positive electrode active material for a non-aqueous electrolyte secondary battery contains a lithium transition metal complex oxide capable of occluding and releasing Li. The lithium transition metal complex oxide is represented by general formula LixM1yOzFw (in the formula, 0.5 ? × < 3.1, 1 ? y ? 2, 2 ? z+w ? 4, and M1 is at least one element selected from Ni, Co, Mn, Ti, Fe, Al, Ge, Si, and Nb), and M2 (M2 being at least one element selected from Ca, Sr, Sc, Er, Y, Zr, and W) is included in the interior of secondary particles of the lithium transition metal complex oxide.
    Type: Application
    Filed: February 25, 2021
    Publication date: April 13, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Akiko Murata, Hiroshi Kawada, Mitsuhiro Hibino
  • Publication number: 20230100030
    Abstract: The present invention provides a lithium ion battery which comprises a positive electrode having a positive electrode mixture layer that contains a positive electrode active material, and a negative electrode having a negative electrode mixture layer that contains a negative electrode active material, and which is charged and discharged by the movement of lithium ions between the positive electrode and the negative electrode. The negative electrode mixture layer contains a negative electrode active material represented by general formula La3(1-x)M3xNi2(1-y)Me2yX7 (wherein M contains at least one of Ca, Mg and Sr; Me contains at least one of Mn, Co, Cu and Fe; X contains at least one of Ge, Si, Sn and Al; 0.1?x<0.5; and 0<y?1).
    Type: Application
    Filed: February 25, 2021
    Publication date: March 30, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kazuko Asano, Yukihiro Oki, Nanami Takeda, Mitsuhiro Hibino
  • Publication number: 20230094468
    Abstract: This positive electrode active material for a non-aqueous electrolyte secondary battery contains a lithium-transition metal composite oxide that has a rock salt-related structure and is represented by the compositional formula LiaMnbMcO2-xFx (in the formula: M is at least one metal element excluding Li and Mn; 2.000<a+b+c?2.195; 1.0<a?1.4; 0.4?b?0.9; 0?c?0.2; and 0.2?x?0.6). The metal element M preferably is at least one selected from Ni, Sn, Mo, Ti, W, Zn, and Al.
    Type: Application
    Filed: January 21, 2021
    Publication date: March 30, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Jin Zhang, Issei Ikeuchi, Mitsuhiro Hibino, Kensuke Nakura
  • Publication number: 20230101615
    Abstract: This charging method is A method for charging a nonaqueous electrolyte secondary cell containing a lithium-rich positive-electrode active material. When constant-current charging is performed to a predetermined voltage V2 which is equal to or higher than a setting voltage V1, and then constant-current discharging is performed to a predetermined voltage V3, V3<V1?V2 is satisfied. Cell capacity C1 at V1, cell capacity C2 at V2, and cell capacity C3 at V3 satisfy 0.99C1?C3<C2.
    Type: Application
    Filed: February 25, 2021
    Publication date: March 30, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Ryuichi Natsui, Mitsuhiro Hibino, Kensuke Nakura
  • Publication number: 20230096005
    Abstract: This positive electrode active material for nonaqueous electrolyte secondary batteries contains a lithium transition metal composite oxide. This lithium transition metal composite oxide is represented by general formula LixMnyNizMe2-x-y-zOaFb (wherein 1?x?1.2; 0.4?y?0.7; 0.1?z?0.4; 0<b?0.2; 1.9?a+b?2.1; and Me represents at least one element selected from among Co, Al, Ti, Ge, Nb, Sr, Mg, Si, P and Sb), while having a BET specific surface area of from 1 m2/g to 4 m2/g and an average pore diameter of 100 nm or less.
    Type: Application
    Filed: February 25, 2021
    Publication date: March 30, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takanori Omae, Ryuichi Natsui, Mitsuhiro Hibino, Kensuke Nakura
  • Publication number: 20230082835
    Abstract: This positive-electrode active material for a non-aqueous electrolyte secondary battery contains a lithium and transition metal composite oxide represented by the composition formula: LixMnyNizSraMbO2-cFc (where, M is at least two elements selected from Ti, Co, Si, Al, Nb, W, Mo, P, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K, and Bi; 1.0<x?1.2; 0.4?y?0.8; 0?z?0.4; 0<a<0.01; 0<b<0.03; 0<c<0.1; and x+y+z+a+b?2).
    Type: Application
    Filed: January 21, 2021
    Publication date: March 16, 2023
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Youshin Lee, Ryuichi Natsui, Mitsuhiro Hibino, Kensuke Nakura
  • Publication number: 20230071732
    Abstract: This positive electrode active material for a non-aqueous electrolyte secondary battery contains a lithium transition metal composite oxide represented by the composition formula LixMnyNizALaMbO2-cFc (in the formula, M represents at least two elements selected from Ti, Co, Si, Sr, Nb, W, Mo, P, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K, and Bi; 1.0<x?1.2; 0.4?y?0.8; 0?z?0.4; 0<a<0.01; 0<b<0.03; 0<c<0.1; and x+y+z+a+b?2).
    Type: Application
    Filed: February 10, 2021
    Publication date: March 9, 2023
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryuichi Natsui, Mitsuhiro Hibino, Kensuke Nakura