GAS DISTRIBUTION ASSEMBLY, IN PARTICULAR FOR HIGH TEMPERATURE SOLID OXIDE TYPE ELECTROLYSERS OR FUEL CELLS

A gas distribution assembly comprises a first plate (20) and a second plate (12) parallel to each other, the first plate (20) comprising gas communication orifices (21, 22, 23, 24). [0002] A sealing interface device (40) comprises sealing joints (41, 42, 43, 44) arranged around the communication orifices (21, 22, 23, 24) and a spacer (50) arranged in a coupling plane between the first and second plates (20, 12). [0003] The spacer (50) and the sealing joints (41, 42, 43, 44) form a sealing interface having two planes of symmetry perpendicular to each other and perpendicular to the coupling plane, the thickness of the sealing joints (41, 42, 43, 44) before pressure coupling of the first and second plates (20, 12) being greater than the thickness of the spacer (50). [0004] Use for a high-temperature solid oxide electrolyzer or fuel cell.