METHOD AND DEVICE FOR PRODUCING A FUEL CELL STACK

Abstract

Amethod for producing a fuel cell stack includes: providing and individual handover of a plurality of first layers of the fuel cell stack, provided with overhangs, to a first conveyor belt pair which is motor driven and revolves around a first end, the two individual revolving conveyor belts of which run spaced apart so that they respectively receive one of the overhangs of the first layer, providing and individual handover of a plurality of second layers of the fuel cell stack, provided with overhangs, to a second conveyor belt pair which is motor driven and revolves around a second end, the two individual revolving conveyor belts of which run spaced apart so that they respectively receive one of the overhangs of the second layer, and handover of the first layers provided with overhangs at the first end of the first conveyor belt pair to a region of the conveyor belts of the second conveyor belt pair lying between two second layers transported by the second conveyor belt pair. A device for carrying out the method is also provided.

Description

Claims

1. A method for producing a fuel cell stack, comprising: providing and individual handover of a plurality of first layers of the fuel cell stack provided with overhangs, to a first conveyor belt pair which is motor driven and revolves around a first end the two individual revolving conveyor belts of which run spaced apart so that they respectively receive one of the overhangs of the first layerproviding and individual handover of a plurality of second layers of the fuel cell stack provided with overhangs to a second conveyor belt pair which is motor driven and revolves around a second end the two individual revolving conveyor belts of which run spaced apart so that they respectively receive one of the overhangs of the second layer; andhandover of the first layers provided with overhangs at the first end of the first conveyor belt pair to a region of the conveyor belts of the second conveyor belt pair lying between two second layers transported by the second conveyor belt pair.

2. The method according to claim 1, wherein the conveyor belts of the second conveyor belt pair are led through openings of a ramp punch, and the first layers and the second layers of the fuel cell stack are stacked alternately on the ramp punch.

3. The method according to claim 2, wherein a unipolar plate is first placed on the ramp punch, and then the first layers and the second layers of the fuel cell stack are stacked alternately on the unipolar plate held on the ramp punch.

4. The method according to claim 1, wherein the conveyor belts comprise equidistantly arranged structures by which the layers provided with overhangs are received.

5. The method according to claim 1, wherein the first layers and/or the second layers are provided lying flat on a delivery belt, the overhangs sticking out to the side relative to the direction of movement of the delivery belt, and each one of the conveyor belts is moved laterally with respect to the direction of movement of the delivery belt so that the equidistantly arranged structures receive and transport the layers at their overhangs.

6. A device for producing a fuel cell stack, comprising: a first conveyor belt pair which is motor driven and revolves around a first end, the two individual revolving conveyor belts of which run spaced apart so that a plurality of first layers of the fuel cell stack provided with overhangs can be transported between the conveyor belts at discrete intervals;a second conveyor belt pair which is motor driven and revolves around a second end, the two individual revolving conveyor belts of which run spaced apart so that a plurality of second layers of the fuel cell stack provided with overhangs can be transported between the conveyor belts at discrete intervals;wherein the first end of the first conveyor belt pair is positioned such with respect to the second conveyor belt pair that the first layers provided with overhangs are handed over to a region of the conveyor belts of the second conveyor belt pair lying between two of the second layers transported by the second conveyor belt pair.

7. The device according to claim 6, wherein the second conveyor belt pair is led through openings of a ramp punch, which is adapted to alternately stack the first layers and the second layers of the fuel cell stack.

8. The device according to claim 7, wherein the ramp punch is adapted to hold a unipolar plate, on which the first layers and the second layers of the fuel cell stack are stacked alternately.

9. The device according to claim 6, wherein the conveyor belts comprise equidistantly arranged structures, which are adapted to carry along and/or receive the layers provided with overhangs.

10. The device according to claim 6, wherein the first layers and/or the second layers are provided lying flat on a delivery belt, the overhangs sticking out to the side relative to the direction of movement of the delivery belt, and each one of the conveyor belts is moved laterally with respect to the direction of movement of the delivery belt so that the equidistantly arranged structures receive and transport the layers at their overhangs.