A fuel cell stack according to the present disclosure includes a collector configured to collect electric power generated by a plurality of fuel battery cells. The collector includes a structure in which the separator and the collector plate adhere to each other with a seal member interposed therebetween. A space formed by the collector plate, the separator, and the seal member is a closed space. The collector includes a ventilation structure for discharging gas from the closed space to the outside when a pressure in the closed space rises.

An electrochemical arrangement with two metallic separator plates which each define a plate plane and which are stacked in a stack direction perpendicular to the plate planes. The separator plates comprise sealing elements which are embossed into the separator plate and which are supported against one another for sealing the electrochemical cell which is arranged between the separator plates and which are reversibly deformable in the stack direction up to a distance z.sub.2. The arrangement further comprises at least one support element which is arranged between the separator plates and which is distanced to the sealing elements of the separator plates in a direction parallel to the plate planes.

An electrochemical arrangement with two metallic separator plates which each define a plate plane and which are stacked in a stack direction perpendicular to the plate planes. The separator plates comprise sealing elements which are embossed into the separator plate and which are supported against one another for sealing the electrochemical cell which is arranged between the separator plates and which are reversibly deformable in the stack direction up to a distance z.sub.2. The arrangement further comprises at least one support element which is arranged between the separator plates and which is distanced to the sealing elements of the separator plates in a direction parallel to the plate planes.

A method of producing a rubber seal includes placing a screen with an opening, above a workpiece including a base portion and a bead base protruding from the base portion and applying a liquid material for forming the rubber seal, onto a top part of the bead base through the opening. In the production, the liquid material is applied onto the top part by moving a squeegee along a surface of the screen in a state where a stopper portion is disposed at a position adjacent to the bead base within an area of the base portion and between the screen and the workpiece.

Implementation of an interconnector structure for an SOEC or SOFC electrochemical device, the interconnector being formed of a conductive support element having a first face with a rough region, the roughness of which has been modified locally before being brought into contact with a seal.

An electrochemical arrangement with two metallic separator plates which each define a plate plane and which are stacked in a stack direction perpendicular to the plate planes. The separator plates comprise sealing elements which are embossed into the separator plate and which are supported against one another for sealing the electrochemical cell which is arranged between the separator plates and which are reversibly deformable in the stack direction up to a distance z2. The arrangement further comprises at least one support element which is arranged between the separator plates and which is distanced to the sealing elements of the separator plates in a direction parallel to the plate planes.

An electrochemical arrangement with two metallic separator plates which each define a plate plane and which are stacked in a stack direction perpendicular to the plate planes. The separator plates comprise sealing elements which are embossed into the separator plate and which are supported against one another for sealing the electrochemical cell which is arranged between the separator plates and which are reversibly deformable in the stack direction up to a distance z2. The arrangement further comprises at least one support element which is arranged between the separator plates and which is distanced to the sealing elements of the separator plates in a direction parallel to the plate planes.

A system for clamping a high-temperature SOEC/SOFC stack, including: an upper clamping plate and a lower clamping plate between which the stack can be clamped, each plate including at least one clamping orifice; at least one clamping rod configured to extend through clamping orifices in the upper and lower clamping plates to allow them to be assembled; a clamping mechanism level with each clamping orifice, configured to interact with the at least one clamping rod; and at least one electrically insulating plate configured to be located between the stack and at least one of the upper and lower clamping plates.

A system for clamping a high-temperature SOEC/SOFC stack, including: an upper clamping plate and a lower clamping plate between which the stack can be clamped, each plate including at least one clamping orifice; at least one clamping rod configured to extend through clamping orifices in the upper and lower clamping plates to allow them to be assembled; a clamping mechanism level with each clamping orifice, configured to interact with the at least one clamping rod; and at least one electrically insulating plate configured to be located between the stack and at least one of the upper and lower clamping plates.

An electrochemical reactor, including a flow guide; a membrane/electrode assembly; a peripheral seal; an intermediate seal encircled by the peripheral seal and encircling a reaction zone of the electrochemical reactor; a first flow circuit for cooling fluid arranged between the peripheral seal and the intermediate seal, including a first flow channel extending along the peripheral seal; a second flow channel extending along the intermediate seal; and a third flow channel connecting the respective second ends of the first and second flow channels, so that a fluid introduced at the level of the first manifold must pass through the third flow channel to return to the second manifold.