Title:
SOLID ELECTROLYTE ASSEMBLY, ELECTROCHEMICAL ELEMENT, AND LIMITING CURRENT-TYPE GAS SENSOR
Document Type and Number:
WIPO Patent Application WO/2023/176811
Kind Code:
A1
Abstract:
This solid electrolyte assembly comprises a substrate, a solid electrolyte, a first electrode, and a second electrode. The solid electrolyte has oxide ion conductivity, and the first electrode is located below the solid electrolyte and includes a porous body. The first electrode has only one oxygen diffusion path, which is formed so as to overlap with the substrate and the solid electrolyte. A portion of the oxygen diffusion path that overlaps with the substrate and the solid electrolyte in plan view of the solid electrolyte assembly is cut perpendicularly to the direction of diffusion of oxygen to obtain a cross-section of the first electrode, and at that time, if the smallest cross-sectional area at a site where the area of the cross-section is smallest is Sr and the area of the region where the first electrode and the second electrode overlap in plan view of the solid electrolyte is Sp, then Sr/Sp is at least 1 × 10−7 and no more than 6.9 × 10−4.
Inventors:
MATSUO HARUKI (JP)
OYAMA TOKIHARU (JP)
KOMORI YUYA (JP)
SUMIYOSHI ATSURO (JP)
IDE SHINGO (JP)
OYAMA TOKIHARU (JP)
KOMORI YUYA (JP)
SUMIYOSHI ATSURO (JP)
IDE SHINGO (JP)
Application Number:
PCT/JP2023/009783
Publication Date:
September 21, 2023
Filing Date:
March 14, 2023
Export Citation:
Assignee:
MITSUI MINING & SMELTING CO LTD (JP)
International Classes:
G01N27/41
Foreign References:
| JP2021021711A | 2021-02-18 | |||
| JPH02147853A | 1990-06-06 | |||
| JP2015212649A | 2015-11-26 | |||
| JPH056365U | 1993-01-29 | |||
| JPH06242067A | 1994-09-02 | |||
| US20150377823A1 | 2015-12-31 |
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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