Patents by Inventor Chihiro SHINODA

Chihiro SHINODA 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: 20210376319
    Abstract: Provided is a positive electrode structure including a current collector and a positive electrode mixture layer provided on one or each of both sides of the current collector, wherein the positive electrode mixture layer has a thickness of 69 ?m or more, the positive electrode mixture layer has a density of 3.0 to 5.0 g/cm3, the positive electrode mixture layer includes a positive electrode active material and a binder, the positive electrode active material includes a lithium-nickel composite oxide, the binder includes a fluorine-containing copolymer, the fluorine-containing copolymer contains a vinylidene fluoride unit and a fluorinated monomer unit (excluding the vinylidene fluoride unit), and the fluorine-containing copolymer has a storage modulus (E?) at 30° C. of 100 to 1,100 MPa and a storage modulus (E?) at 60° C. of 50 to 500 MPa, as measured by dynamic viscoelasticity.
    Type: Application
    Filed: September 30, 2019
    Publication date: December 2, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Chihiro SHINODA, Takahiro KITAHARA, Kazuki HOSODA, Yuma ICHINOSE
  • Patent number: 10847800
    Abstract: A binder and an electrode mixture for a secondary battery. The binder contains a fluorine-containing polymer containing a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer (2-2) represented by the following formula (2-2): R5R6C?CR7R8CO2Y1??(2-2) wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation and/or an organic cation.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: November 24, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuya Asano, Takashi Iguchi, Manabu Fujisawa, Chihiro Shinoda, Tomoyuki Goto, Kazuki Hosoda, Takahiro Kitahara
  • Publication number: 20200243862
    Abstract: A binder for a secondary battery containing a fluorine-containing polymer (A) and polyvinylidene fluoride (B). The fluorine-containing polymer (A) contains a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer (2-2) represented by the following formula (2-2): wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation or an organic cation. Also disclosed is an electrode mixture and an electrode for a secondary battery including the binder, and a secondary battery including the electrode.
    Type: Application
    Filed: October 2, 2018
    Publication date: July 30, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuki HOSODA, Takahiro KITAHARA, Manabu FUJISAWA, Takashi IGUCHI, Kazuya ASANO, Chihiro SHINODA
  • Publication number: 20200067052
    Abstract: A secondary battery separator including a porous substrate and a porous film firmly bonded to each other, the porous film being disposed on or above the porous substrate. The porous film contains a fluorine-containing polymer that contains a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer represented by the following formula (2-2): R5R6C?CR7R8CO2Y1??(2-2) wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation and/or an organic cation. Also disclosed is a secondary battery including the secondary battery separator; a positive electrode; a negative electrode; and a non-aqueous electrolyte solution.
    Type: Application
    Filed: March 27, 2018
    Publication date: February 27, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takahiro KITAHARA, Manabu FUJISAWA, Takashi IGUCHI, Kazuya ASANO, Chihiro SHINODA
  • Publication number: 20190296359
    Abstract: A binder and an electrode mixture for a secondary battery. The binder contains a fluorine-containing polymer containing a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer (2-2) represented by the following formula (2-2): R5R6C?CR7R8CO2Y1??(2-2) wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation and/or an organic cation.
    Type: Application
    Filed: September 27, 2017
    Publication date: September 26, 2019
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuya ASANO, Takashi IGUCHI, Manabu FUJISAWA, Chihiro SHINODA, Tomoyuki GOTO, Kazuki HOSODA, Takahiro KITAHARA