Patents by Inventor Chika TAKAMORI

Chika TAKAMORI 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).

  • Solid electrolyte material and all solid lithium ion secondary battery
    Patent number: 10566655
    Abstract: There are provided a solid electrolyte material having high density and ion conductivity, and an all solid lithium ion secondary battery using the solid electrolyte material. The solid electrolyte material has a garnet-related structure which has a chemical composition represented by Li7-x-yLa3Zr2-x-yTaxNbyO12 (0?x?0.8, 0.2?y?1, and 0.2?x+y?1) and relative density of 99% or greater, and belongs to a cubic system. The solid electrolyte material has lithium ion conductivity which is equal to or greater than 1.0×10?3 S/cm. The solid electrolyte material has a lattice constant a which satisfies 1.28 nm?a?1.30 nm, and has a lithium ion which occupies only two or more 96h sites in a crystal structure. The all solid lithium ion secondary battery includes a positive electrode, a negative electrode, and a solid electrolyte. The solid electrolyte includes the solid electrolyte material.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: February 18, 2020
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Kunimitsu Kataoka, Chika Takamori, Haruo Ishizaki, Junji Akimoto
  • SOLID ELECTROLYTE MATERIAL AND ALL SOLID LITHIUM ION SECONDARY BATTERY
    Publication number: 20190341651
    Abstract: There are provided a solid electrolyte material having high density and ion conductivity, and an all solid lithium ion secondary battery using the solid electrolyte material. The solid electrolyte material has a garnet-related structure which has a chemical composition represented by Li7-x-yLa3Zr2-x-yTaxNbyO12 (0?x?0.8, 0.2?y?1, and 0.2?x+y?1) and relative density of 99% or greater, and belongs to a cubic system. The solid electrolyte material has lithium ion conductivity which is equal to or greater than 1.0×10?3 S/cm. The solid electrolyte material has a lattice constant a which satisfies 1.28 nm?a?1.30 nm, and has a lithium ion which occupies only two or more 96h sites in a crystal structure. The all solid lithium ion secondary battery includes a positive electrode, a negative electrode, and a solid electrolyte. The solid electrolyte includes the solid electrolyte material.
    Type: Application
    Filed: December 26, 2016
    Publication date: November 7, 2019
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Kunimitsu KATAOKA, Chika TAKAMORI, Haruo ISHIZAKI, Junji AKIMOTO