Metal Support, Electrochemical Element, Electrochemical Module, Electrochemical Device, Energy System, Solid Oxide Fuel Cell, Solid Oxide Electrolysis Cell, and Method for Producing Metal Support

Patent metadata

Field	Value
Publication number	US-2023110742-A1
Application number	US-202117914236-A
Country	US
Kind code	A1
Filing date	Mar 31, 2021
Priority date	Mar 31, 2020
Publication date	Apr 13, 2023
Grant date	—

Abstract

In a metal support mostly used for a metal-supported solid oxide fuel cell (SOFC), a SOFC system that improves the power generation efficiency by allowing a gas to smoothly flow into or flow out from the through-holes is achieved. A metal support is formed in a plate shape as a whole and has a plurality of through-holes penetrating from a front surface on which an electrode layer is provided to a back surface, and the metal support has inclined through-holes, as the through-holes each of which has a central axis inclined with respect to a thickness direction.

First claim

1 . A metal support that is formed in a plate shape as a whole and that has a plurality of through-holes penetrating from a front surface on which an electrode layer is provided to a back surface,
wherein the metal support has inclined through-holes, as the through-holes, each of which has a central axis inclined with respect to a thickness direction.

2 . The metal support according to claim 1 ,
wherein a gas flow channel through which a gas supplied to and received from the electrode layer flows is provided along the back surface of the metal support, and as each inclined through-hole, the metal support has a first inclined through-hole of which an opening on a front side of the metal support is positioned at further downstream of the gas flow channel in a gas flow direction than an opening on a back side of the metal support.

3 . The metal support according to claim 1 ,
wherein a gas flow channel through which a gas supplied to and received from the electrode layer flows is provided along the back surface of the metal support, and as each inclined through-hole, the metal support has a second inclined through-hole of which an opening on a back side of the metal support is positioned at further downstream of the gas flow channel in a gas flow direction than an opening on a front side of the metal support.

4 . The metal support according to claim 1 ,
wherein a gas flow channel through which a gas supplied to and received from the electrode layer flows is provided along the back surface of the metal support, as the inclined through-holes, the metal support has a first inclined through-hole and a second inclined through-hole, the first inclined through-hole is inclined in a state in which an opening on a front side of the metal support is positioned at further downstream of the gas flow channel in a gas flow direction than an opening on a back side of the metal support, and the second inclined through-hole is inclined in a state in which an opening on the back side of the metal support is positioned at further downstream of the gas flow channel in the gas flow direction than an opening on the front side of the metal support.

5 . The metal support according to claim 4 ,
wherein each of the inclined through-holes is formed to have an opening area on the front side of the metal support smaller than an opening area on the back side of the metal support.

6 . The metal support according to claim 1 ,
wherein the electrode layer an insertion section inserted into each of the inclined through-holes.

7 . An electrochemical element comprising:
the metal support according to claim 1 , wherein an electrode layer, an electrolyte layer, and a counter electrode layer are provided on the front surface of the metal support.

8 . The electrochemical element according to claim 7 ,
wherein a turbulence promoter that disturbs a flow in a gas flow channel is provided in at least a part of the gas flow channel through which a gas supplied to and received from the electrode layer flows.

9 . The electrochemical element according to claim 7 ,
wherein a catalytic reaction section that reforms a fuel gas is provided in at least a part of the gas flow channel through which a gas supplied to and received from the electrode layer flows.

10 . An electrochemical module comprising:
a plurality of the electrochemical elements according to claim 7 , wherein the plurality of electrochemical elements are disposed in an assembled state.

11 . An electrochemical device comprising:
electrochemical element according to claim 7 ; and a fuel converter that supplies a gas containing a reduction component to the at least one electrochemical, or a fuel converter that converts a gas containing a reduction component generated from the at least one electrochemical element.

12 . An electrochemical device comprising:
at least one electrochemical element according to claim 7 ; and an electric power converter that extracts electric power from the at least one electrochemical element or that supplies electric power to the at least one electrochemical element.

13 . An energy system comprising:
the electrochemical device according to claim 11 ; and an exhaust heat utilization section that reuses heat discharged from the electrochemical device.

14 . A solid oxide fuel cell comprising:
the electrochemical element according to claim 7 , wherein the solid oxide fuel cell causes a power generation reaction by using the electrochemical element.

15 . A solid oxide electrolysis cell comprising:
the electrochemical element according to claim 7 , wherein the solid oxide fuel cell causes an electrolysis reaction by using the electrochemical element.

16 . A method for producing the metal support according to claim 1 , wherein
any of laser processing, punching processing, or etching processing, or a combination thereof is carried out on a metal material plate to form a plurality of through-holes penetrating from a front side to a back side of the metal support.

Assignees

• Osaka Gas Co Ltd

Inventors

• Echigo Mitsuaki
• Tsuda Yuji
• Ohnishi Hisao

Classifications

• H01M8/1226 Primary

  characterised by the supporting layer · CPC title

• C25B15/08 Primary

  Supplying or removing reactants or electrolytes; Regeneration of electrolytes · CPC title

• C25B9/63

  Holders for electrodes; Positioning of the electrodes · CPC title

• H01M8/1246

  the electrolyte consisting of oxides · CPC title

• H01M2008/1293

  Fuel cells with solid oxide electrolytes · CPC title