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    LITHIUM ION-CONDUCTIVE OXIDE AND USE FOR SAME
    3.
    发明申请
    LITHIUM ION-CONDUCTIVE OXIDE AND USE FOR SAME 有权

    公开(公告)号：US20230026839A1

    公开(公告)日：2023-01-26

    申请号：US17785619

    申请日：2020-12-25

    Applicant: SHOWA DENKO K.K.

    Inventor： Ryosuke SEI ,  Kunchan LEE

    IPC: H01M10/0562

    Abstract: The present invention aims to provide a lithium ion-conducting oxide capable of providing a solid electrolyte with an excellent ion conductivity, and a solid electrolyte, a sintered body, an electrode material or an electrode and an all-solid-state battery using the same. The lithium ion-conducting oxide of the present invention includes at least lithium, tantalum, phosphorus, silicon, and oxygen as constituent elements, has a peak in a region of −20.0 ppm to 0.0 ppm on the solid-state 31P-NMR spectrum, and has a peak in a range of −80.0 ppm to −100.0 ppm on the solid-state 29Si-NMR spectrum.

    LITHIUM ION-CONDUCTING OXIDE
    4.
    发明申请
    LITHIUM ION-CONDUCTING OXIDE 有权

    公开(公告)号：US20220311001A1

    公开(公告)日：2022-09-29

    申请号：US17635422

    申请日：2020-08-26

    Applicant: SHOWA DENKO K.K.

    Inventor： Ryosuke SEI ,  Kunchan LEE ,  Shunsuke KURAHASHI

    IPC: H01M4/58 ,  H01M10/0525

    Abstract: A lithium ion-conducting oxide including at least lithium, tantalum, M1, phosphorus, and oxygen as constituent elements. M1 is at least one metal element selected from elements of the Group 4, the Group 5, the Group 6, the Group 13, and the Group 14 (provided that tantalum is excluded), a ratio of number of atoms of each constituent element of lithium, tantalum, M1, phosphorus, and oxygen is 1:2−x:x:1:8, wherein x is more than 0 and less than 1, and the lithium ion-conducting oxide contains a monoclinic crystal. Also disclosed is a lithium-ion secondary battery including the lithium ion-conducting oxide.

    LITHIUM ION CONDUCTIVE SOLID ELECTROLYTE AND ALL-SOLID-STATE BATTERY
    5.
    发明公开
    LITHIUM ION CONDUCTIVE SOLID ELECTROLYTE AND ALL-SOLID-STATE BATTERY 审中-公开

    公开(公告)号：US20240088431A1

    公开(公告)日：2024-03-14

    申请号：US18269364

    申请日：2021-12-23

    Applicant: SHOWA DENKO K.K.

    Inventor： Kunchan LEE ,  Ryosuke SEI

    IPC: H01M10/0562 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

    CPC classification number: H01M10/0562 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/027

    Abstract: Provided is a novel solid electrolyte having excellent lithium ion conductivity.
    The lithium ion conductive solid electrolyte of the present invention includes a chalcogenide having a monoclinic crystal structure, wherein



    the monoclinic crystal has an a-axis length of 9.690 to 9.711 Å, a b-axis length of 11.520 to 11.531 Å, a c-axis length of 10.680 to 10.695 Å, and an axis angle β in the range of 90.01 to 90.08°. The all-solid-state battery of the present invention includes a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, and a solid electrolyte layer between the positive electrode and the negative electrode, wherein the solid electrolyte layer includes the lithium ion conductive solid electrolyte.

    SOLID ELECTROLYTE MATERIAL, SOLID ELECTROLYTE, METHOD FOR PRODUCING SOLID ELECTROLYTE, AND ALL-SOLID-STATE BATTERY
    7.
    发明公开
    SOLID ELECTROLYTE MATERIAL, SOLID ELECTROLYTE, METHOD FOR PRODUCING SOLID ELECTROLYTE, AND ALL-SOLID-STATE BATTERY 审中-公开

    公开(公告)号：US20230223590A1

    公开(公告)日：2023-07-13

    申请号：US18008774

    申请日：2021-06-09

    Applicant: SHOWA DENKO K.K.

    Inventor： Ryosuke SEI ,  Kunchan LEE

    IPC: H01M10/0562 ,  H01M4/58

    CPC classification number: H01M10/0562 ,  H01M4/5825 ,  H01M2004/028

    Abstract: The invention relates to a solid electrolyte material, solid electrolyte, method for producing the solid electrolyte, and all-solid-state battery, and the solid electrolyte material includes lithium, tantalum, phosphorus, and oxygen as constituent elements and includes at least one element selected from boron, niobium, bismuth, and silicon as a constituent element, and satisfies any of requirements (I) to (III). Requirement (I): A peak top of a 31P-NMR spectrum of the solid electrolyte material is in the range of −9.5 to 5.0 ppm. Requirement (II): A peak top of a 7Li-NMR spectrum of the solid electrolyte material is in the range of −2.00 to 0.00 ppm. Requirement (III): A peak top of a 31P-NMR spectrum of the solid electrolyte material is in the range of −9.5 to 5.0 ppm, and a peak top of a 7Li-NMR spectrum of the solid electrolyte material is in the range of −2.00 to 0.00 ppm.

    LITHIUM ION-CONDUCTING OXIDE
    8.
    发明申请
    LITHIUM ION-CONDUCTING OXIDE 有权

    公开(公告)号：US20220359907A1

    公开(公告)日：2022-11-10

    申请号：US17638529

    申请日：2020-08-26

    Applicant: SHOWA DENKO K.K.

    Inventor： Ryosuke SEI ,  Kunchan LEE ,  Shunsuke KURAHASHI

    IPC: H01M10/0562 ,  C01B25/45 ,  H01M10/0525

    Abstract: An embodiment of the present invention relates to a lithium ion-conducting oxide or a lithium-ion secondary battery. The lithium ion-conducting oxide includes at least lithium, tantalum, phosphorus, M2, and oxygen as constituent elements, wherein M2 is at least one element selected from the group consisting of elements of the Group 14 and Al (provided that carbon is excluded), a ratio of number of atoms of each constituent element of lithium, tantalum, phosphorus, M2, and oxygen is 1:2:1−y:y:8, wherein y is more than 0 and less than 0.7, and the lithium ion-conducting oxide contains a monoclinic crystal.

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