System for conditioning a plurality of stacks of high-temperature soec/sofc solid oxide cells

A system for conditioning a plurality of superimposed stacks of solid oxide cells of a SOEC/SOFC type operating at a high temperature, comprising:

• a thermal enclosure delimiting an internal volume;
• the plurality of stacks placed in the internal volume, at least two stacks being at least partially superimposed on one another, each of the plurality of superimposed stacks including a plurality of electrochemical cells each formed of a cathode, an anode, and an electrolyte inserted between the cathode and the anode, and a plurality of intermediate interconnectors each arranged between two adjacent electrochemical cells of the plurality of electrochemical cells;
• a plurality of support devices at least partially superimposed on one another, on each of which one or more stacks which are not superimposed on one another are positioned;
• a plurality of devices for applying a compressive force to one or more stacks, at least partially superimposed on one another;
• and
• means for moving the plurality of devices for applying the compressive force allowing an independent mechanical clamping of the stack(s) positioned on each of the plurality of support devices, the means for moving the plurality of devices for applying the compressive force including elastic return members, actuators, and/or pistons, located outside of the thermal enclosure.