Bipolar plate, a method for the production of a bipolar plate and a fuel cell block arrangement

A method for the production of a bipolar plate, comprising:

• producing a first cover layer from a metallic material;
• producing a supporting layer from a metallic material with transverse webs and free spaces located between neighbouring transverse webs;
• producing a second cover layer from a metallic material;
• and
• connecting the first cover layer and the second cover layer together by the supporting layer;
• wherein at least one passage opening is produced in the bipolar plate, and wherein an insert element made of solid material is inserted in the region of the passage opening.

A fuel cell block arrangement, comprising:

• a fuel cell block,
• wherein a bipolar plate is arranged between at least a first fuel cell and a second fuel cell,
• said bipolar plate comprising:
• a first cover layer of a metallic material;
• a second cover layer of a metallic material;
• and
• a supporting layer of a metallic material which is arranged between the first cover layer and the second cover layer and is connected to the first cover layer and the second cover layer;
• wherein the supporting layer comprises at least one row of contact areas for at least one of the first cover layer and the second cover layer;
• wherein free spaces are formed between neighbouring contact areas;
• wherein at least one passage opening is provided for conveying at least one of fuel and oxidizer;
• and
• wherein an insert element by means of which point forces are introducible over an area is arranged between the first cover layer and the second cover layer in the region of the at least one passage opening.