HYDROGEN PERMEATION STRUCTURE AND FUEL CELL

摘要

PROBLEM TO BE SOLVED: To provide a hydrogen permeation structure comprised of a hydrogen permeation substrate and a proton conductive membrane which prevents the stripping between the hydrogen permeation substrate and the proton conductive membrane and which has stabilized performance and is excellent in durability, and to provide a fuel cell in which the hydrogen permeation structure is used and which is excellent in durability.

SOLUTION: The hydrogen permeation structure is provided with a proton conductive membrane constituted of the oxygen deficiency type perovskite structure and the hydrogen permeation substrate wherein the hydrogen permeation substrate is constituted of a silicon substrate and hydrogen permeation metallic foil to cover the proton conductive membrane side of the silicon substrate and wherein the silicon substrate has a porous part of which the porosity is from 50% or more to less than 80% and is comprised of single crystal silicon of which the arithmetic average roughness (Ra) is 0.01 μm or less. The fuel cell using the hydrogen permeation structure is also provided.

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