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    OXYGEN REDUCTION CATALYST, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL
    2.
    发明申请
    OXYGEN REDUCTION CATALYST, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL 审中-公开

    公开(公告)号：US20200147590A1

    公开(公告)日：2020-05-14

    申请号：US16473422

    申请日：2017-12-27

    Applicant: SHOWA DENKO K.K.

    Inventor： Takuya IMAI ,  Kazuo FURUYA ,  Kunchan LEE ,  Suguru SAKAGUCHI ,  Yoshishige OKUNO

    IPC: B01J23/75 ,  H01M4/90 ,  H01M8/10

    Abstract: An oxygen reduction catalyst containing as constituent elements cobalt, sulfur, and a transition metal element M being at least one element selected from chromium and molybdenum, the oxygen reduction catalyst being ascertained to have a crystal structure of a cobalt disulfide cubic crystal in powder X-ray diffraction measurement, and having a molar ratio of the transition metal element M to cobalt (M/cobalt) of 5/95 to 15/85. Also disclosed is an electrode having a catalyst layer containing the oxygen reduction catalyst, a membrane electrode assembly including a polymer electrolyte membrane wherein the electrode serves as a cathode and/or an anode, and a fuel cell including the membrane electrode assembly.

    SOLID ELECTROLYTE MATERIAL, SOLID ELECTROLYTE, METHOD FOR PRODUCING SOLID ELECTROLYTE, AND ALL-SOLID-STATE BATTERY
    4.
    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
    5.
    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.

    MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL COMPRISING THE SAME
    6.
    发明申请
    MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL COMPRISING THE SAME 审中-公开
    膜电极组件和包含其的燃料电池

    公开(公告)号：US20160197369A1

    公开(公告)日：2016-07-07

    申请号：US14410191

    申请日：2013-07-22

    Applicant: SHOWA DENKO K.K.

    Inventor： Kunchan LEE ,  Yoshinori ABE ,  Yuji ITO

    IPC: H01M8/1004 ,  H01M8/1016 ,  H01M4/92 ,  H01M8/1011

    CPC classification number: H01M8/1004 ,  H01M4/8657 ,  H01M4/8668 ,  H01M4/8842 ,  H01M4/9075 ,  H01M4/925 ,  H01M8/1011 ,  H01M8/1016 ,  H01M2008/1095 ,  Y02E60/523

    Abstract: A membrane electrode assembly which includes an anode, a cathode and a solid polymer electrolyte membrane that are specifically arranged, wherein the cathode has a cathode catalyst layer and a cathode diffusion layer that is arranged on a surface of the cathode catalyst layer, the surface being on the side opposite the solid polymer electrolyte membrane side, the cathode catalyst layer contains an oxygen reduction catalyst composed of composite particles each of which is constituted of a catalyst metal containing palladium or a palladium alloy and a catalyst carrier containing, as constituent elements, a specific transition metal element M1, a transition metal element M2 other than the transition metal element M1, carbon, nitrogen and oxygen in a specific ratio, and the cathode diffusion layer contains an oxidation catalyst and a water-repellent resin.

    Abstract translation: 一种膜电极组件，其特征在于，具有阴极催化剂层和阴极侧催化剂层的表面上的阴极催化剂层和阴极扩散层，其特征在于：具有阳极，阴极和固体高分子电解质膜， 在与固体高分子电解质膜侧相反的一侧，阴极催化剂层含有由复合颗粒构成的氧还原催化剂，它们由含有钯或钯合金的催化剂金属和催化剂载体组成，催化剂载体含有 特定过渡金属元素M1，过渡金属元素M1以外的过渡金属元素M2，特定比例的碳，氮和氧，并且阴极扩散层含有氧化催化剂和拒水性树脂。

    LITHIUM ION-CONDUCTIVE OXIDE AND USE FOR SAME
    8.
    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
    9.
    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.

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