Gas decomposition component, method for producing gas decomposition component, and power generation apparatus

摘要

Provided are a gas decomposition component, a method for producing a gas decomposition component, and a power generation apparatus. A gas decomposition component 10 includes a cylindrical-body MEA 7 including a first electrode 2 disposed on an inner-surface side, a second electrode 5 disposed on an outer-surface side, and a solid electrolyte 1 sandwiched between the first electrode and the second electrode; and a porous metal body 11s inserted on the inner-surface side of the cylindrical-body MEA and electrically connected to the first electrode, wherein the gas decomposition component further includes a porous conductive-paste-coated layer 11g formed on an inner circumferential surface of the first electrode, and a metal mesh sheet 11a disposed on an inner circumferential side of the conductive-paste-coated layer, and an electrical connection between the first electrode and the porous metal body is established through the conductive-paste-coated layer and the metal mesh sheet.

主权项

1. A gas decomposition component comprising:
a cylindrical-body membrane electrode assembly (MEA) including a solid electrolyte, a first electrode disposed on an inner-surface side of the solid electrolyte, and a second electrode disposed on an outer-surface side of the solid electrolyte; a first porous conductive-paste-coated layer formed on an inner circumferential surface of the first electrode, wherein the first porous conductive-paste-coated layer has a thickness of 5 μm or more and 300 μm or less and a porosity of the first porous conductive-paste-coated layer is in the range of 20% or more and 80% or less, a metal mesh sheet disposed on an inner circumferential side of the first conductive-paste-coated layer, a porous metal body inserted on the inner-surface side of the metal mesh sheet and electrically connected to the first electrode, an electrical connection between the first electrode and the porous metal body is established through the first conductive-paste-coated layer and the metal mesh sheet, and a second porous conductive-paste-coated layer is formed between an outer circumferential surface of the porous metal body and an inner circumferential surface of the metal mesh sheet.