Method for manufacturing an assembly for a fuel cell

A method for manufacturing an assembly (1, 100, 200, 300) for a fuel cell comprising at least two adjacent cell components taken from a cathode (22), and anode (18, 118), an electrolyte (20) and a sealed plate (24), said method being applied by means of successive steps consisting of:

• a) at least partially solidifying, by laser sintering, a powder layer (Ci) deposited beforehand so that it forms a section (Sn+1) of the assembly;
• and
• b) depositing a successive powder layer (Ci+1) on the powder layer (Ci) deposited beforehand, and at least partially solidified by laser sintering;
• steps a) and b) being alternately repeated until the obtained stacked sections (S1-Sp), made integral with each other during the carrying out of the solidification steps by laser sintering, form together the assembly comprising at least two cell components (18, 118, 20, 22, 24),
• characterized in that it is applied so that at least one of the obtained sections (S1-Sp) has at least two areas with different porosities in the main plane of said obtained section (S1-Sp), and at least two of the powder layers (Ci, Ci+1) have a different thickness.