公开(公告)号：US20210126272A1

公开(公告)日：2021-04-29

申请号：US17045958

申请日：2019-04-16

Applicant: MITSUI MINING & SMELTING CO., LTD.

Inventor： Shingo IDE ,  Kengo SHIMANOE ,  Ken WATANABE ,  Koichi SUEMATSU

IPC: H01M8/1213 ,  H01M8/1246 ,  H01M4/86 ,  G01N27/409 ,  C01B33/20 ,  C01G53/00 ,  C01G49/00

Abstract: A solid electrolyte assembly is obtained by joining a solid electrolyte layer having oxide ion conductivity and containing lanthanum and a first electrode layer made of an oxide that is represented by ABO3−δ and has a cubic perovskite structure to each other, where A represents an alkaline-earth metal element, B represents a transition metal element, and δ represents a fraction that occurs depending on the valences and amounts of A, B, and O. The oxide contains lanthanum at a part of the A site, and an atom ratio of lanthanum to all the elements occupying the A site is 0.01 or greater and 0.80 or less.

公开(公告)号：US20240229296A9

公开(公告)日：2024-07-11

申请号：US18279458

申请日：2022-02-17

Applicant: Mitsui Mining & Smelting Co., Ltd.

Inventor： Sakiko YABU ,  Tokiharu OYAMA ,  Haruki MATSUO ,  Kentaro SOMA ,  Yasunori TABIRA ,  Shingo IDE

IPC: C30B29/22 ,  C30B23/08 ,  G01N27/407

CPC classification number: C30B29/22 ,  C30B23/08 ,  G01N27/4073 ,  H01M8/1246

Abstract: A layered body includes: a substrate; and an oxide portion positioned on the substrate. An oxide that constitutes the oxide portion contains at least two or more rare-earth elements: silicon; and oxygen. The oxide that is contained in the oxide portion exhibits a diffraction peak derived from a (004) plane at a position of 2θ=51.9°±0.9° in an X-ray diffraction pattern, and has an apatite crystal structure. The ratio of linear expansion coefficient of the oxide that constitutes the oxide portion in an a-axis direction relative to linear expansion coefficient of the substrate is 0.15 or more and 1.45 or less.

公开(公告)号：US20220390411A1

公开(公告)日：2022-12-08

申请号：US17779281

申请日：2020-12-17

Applicant: Mitsui Mining & Smelting Co., Ltd. ,  KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

Inventor： Kohei KATO ,  Shingo IDE ,  Kengo SHIMANOE ,  Ken WATANABE ,  Koichi SUEMATSU ,  Nan MA

IPC: G01N27/407 ,  G01N33/00

Abstract: A carbon dioxide sensor includes: a solid electrolyte layer that is anion conductive; a reference electrode disposed on one surface of the solid electrolyte layer; and a detection electrode disposed on the other surface of the solid electrolyte layer. The detection electrode is made of a mixture containing: (a) one or more metals selected from the group consisting of Au, Ag, Pt, Pd, Rh, Ru, Os, and Ir; (b) a cation conductive carbonate; and (c) an oxide containing Li and at least one of Ce and Sm. The solid electrolyte layer is preferably oxide ion conductive, and the cation conductive carbonate is preferably lithium ion conductive.

公开(公告)号：US20210036354A1

公开(公告)日：2021-02-04

申请号：US17045921

申请日：2019-04-16

Applicant: Mitsui Mining & Smelting Co., Ltd.

Inventor： Shingo IDE ,  Kengo SHIMANOE ,  Ken WATANABE ,  Koichi SUEMATSU

IPC: H01M8/1213 ,  H01M4/86 ,  H01M8/1246

Abstract: A solid electrolyte assembly has an anode, a cathode, and a solid electrolyte layer located therebetween. An intermediate layer is provided between the anode or the cathode and the solid electrolyte layer. The intermediate layer is made of a cerium oxide containing lanthanum and a rare-earth element excluding lanthanum and cerium. The solid electrolyte layer contains an oxide of lanthanum. Preferably, the solid electrolyte layer contains a composite oxide of lanthanum and silicon. Also, preferably, the intermediate layer is made of a cerium oxide containing lanthanum and any one of samarium, gadolinium, yttrium, erbium, ytterbium, and dysprosium.

公开(公告)号：US20240288401A1

公开(公告)日：2024-08-29

申请号：US18567660

申请日：2023-03-14

Applicant: Mitsui Mining & Smelting Co., Ltd.

Inventor： Haruki MATSUO ,  Tokiharu OYAMA ,  Yuya KOMORI ,  Atsuro SUMIYOSHI ,  Shingo IDE

IPC: G01N27/407 ,  G01N27/409

CPC classification number: G01N27/4073 ,  G01N27/4075 ,  G01N27/409

Abstract: A solid electrolyte assembly includes a substrate, a solid electrolyte, and a first electrode and a second electrode. The solid electrolyte has oxide ion conductivity, and the first electrode is located under the solid electrolyte and contains a porous material. The first electrode has only one oxygen diffusion path that is formed overlapping the substrate and the solid electrolyte. When Sr represents the smallest cross-sectional area that is a cross-sectional area of the oxygen diffusion path at a location where the area of a cross section of the first electrode taken perpendicularly to an oxygen diffusing direction is smallest in a portion of the oxygen diffusion path where the oxygen diffusion path overlaps the substrate and the solid electrolyte in a plan view of the solid electrolyte assembly, and Sp represents the area of a region where the first electrode and the second electrode overlap each other in a plan view of the solid electrolyte, Sr/Sp is from 1×10−7 to 6.9×10−4.

公开(公告)号：US20240133075A1

公开(公告)日：2024-04-25

申请号：US18279458

申请日：2022-02-17

Applicant: Mitsui Mining & Smelting Co., Ltd.

Inventor： Sakiko YABU ,  Tokiharu OYAMA ,  Haruki MATSUO ,  Kentaro SOMA ,  Yasunori TABIRA ,  Shingo IDE

IPC: C30B29/22 ,  C30B23/08 ,  G01N27/407

CPC classification number: C30B29/22 ,  C30B23/08 ,  G01N27/4073 ,  H01M8/1246

Abstract: A layered body includes: a substrate; and an oxide portion positioned on the substrate. An oxide that constitutes the oxide portion contains at least two or more rare-earth elements: silicon; and oxygen. The oxide that is contained in the oxide portion exhibits a diffraction peak derived from a (004) plane at a position of 2θ=51.9°±0.9° in an X-ray diffraction pattern, and has an apatite crystal structure. The ratio of linear expansion coefficient of the oxide that constitutes the oxide portion in an a-axis direction relative to linear expansion coefficient of the substrate is 0.15 or more and 1.45 or less.

公开(公告)号：US20200381760A1

公开(公告)日：2020-12-03

申请号：US16960711

申请日：2019-02-14

Applicant: MITSUI MINING & SMELTING CO., LTD.

Inventor： Shingo IDE ,  Yusuke SHIRO

IPC: H01M8/1246

Abstract: An oriented apatite-type oxide ion conductor includes a composite oxide expressed as A9.33+x[T6.00−yMy]O26.0+z, where A represents one or two or more elements selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Be, Mg, Ca, Sr, and Ba, T represents an element including Si or Ge or both, and M represents one or two or more elements selected from the group consisting of B, Ge, Zn, Sn, W, and Mo, and where x is from −1.00 to 1.00, y is from 0.40 to less than 1.00, and z is from −3.00 to 2.00.

公开(公告)号：US20240255463A1

公开(公告)日：2024-08-01

申请号：US18564499

申请日：2022-06-20

Applicant: Mitsui Mining & Smelting Co., Ltd. ,  KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

Inventor： Atsuro SUMIYOSHI ,  Shingo IDE ,  Kengo SHIMANOE ,  Ken WATANABE ,  Koichi SUEMATSU

IPC: G01N27/407

CPC classification number: G01N27/4074 ,  G01N27/4075

Abstract: A carbon monoxide gas sensor is a single-chamber sensor for measuring the carbon monoxide gas concentration in a gas phase. The carbon monoxide gas sensor has electrodes disposed on respective sides of a solid electrolyte layer. One of the electrodes is active for oxidation of carbon monoxide gas, and the other of the electrodes is more inactive for oxidation of carbon monoxide gas than the one electrode. The carbon monoxide gas sensor is configured to measure a short-circuit current between the electrodes. In the carbon monoxide gas sensor, the solid electrolyte layer has oxide ion conductivity.

公开(公告)号：US20240243325A1

公开(公告)日：2024-07-18

申请号：US18014922

申请日：2021-08-03

Applicant: Mitsui Mining & Smelting Co., Ltd.

Inventor： Haruki SHIMIZU ,  Tokiharu OYAMA ,  Sakiko YABU ,  Shingo IDE

IPC: H01M8/1213 ,  H01M4/92 ,  H01M8/12 ,  H01M8/1246

CPC classification number: H01M8/1213 ,  H01M4/92 ,  H01M8/1246 ,  H01M2008/1293

Abstract: A solid electrolyte assembly includes a substrate, a first electrode layer, and a solid electrolyte layer, wherein the first electrode layer and the solid electrolyte layer are stacked in this order on one face of the substrate. The first electrode layer includes: platinum or the like; and a metal oxide having ion conductivity. The substrate has a plurality of through-holes (hole portions) extending in a direction that intersects a face of the substrate that is opposed to the first electrode layer. The metal oxide preferably has oxide ion conductivity. The metal oxide preferably includes one or more rare earths.

公开(公告)号：US20210057759A1

公开(公告)日：2021-02-25

申请号：US16961540

申请日：2019-01-17

Applicant: MITSUI MINING & SMELTING CO., LTD.

Inventor： Tokiharu OYAMA ,  Shingo IDE ,  Yusuke SHIRO

IPC: H01M4/92 ,  H01M8/1246 ,  H01M4/90

Abstract: An oxygen permeable element includes an anode, a cathode, and a solid electrolyte. With a voltage applied between the anode and the cathode, oxygen gas in the cathode side atmosphere is allowed to pass through the solid electrolyte to the anode side. The oxygen permeable element has interlayers located between the solid electrolyte and at least one of the cathode and the anode, at least one interlayer containing an oxide of bismuth. The solid electrolyte contains an oxide of lanthanum.