Separator plate and arrangement for an electrochemical system, and electrochemical system

A method for producing an electrochemical system comprising a first separator plate and a second separator plate and a membrane electrode assembly arranged between the two separator plates, the method comprising:

• roller embossing a first metal layer in a first transportation direction and roller embossing a second metal layer in a second transportation direction, and arranging the two layers opposite to one another relative to the respective transportation directions,
• roller embossing flow channels of an active region,
• rolling embossing sealing beads,
• the separator plates each comprising:
• the first metal layer and a second metal layer arranged adjacent to the first metal layer vertically in relation to the layer plane,
• an active region having at least one set of the roller-embossed flow channels for a reaction medium along each outer face of the separator plate, and
• at least one first through-opening for supplying a reaction medium to one of the sets of flow channels, and one second through-opening for conducting the reaction medium away from the set of flow channels,
• wherein, in each of the two separator plates, at least the first through-opening in each of the metal layers or the second through-opening in each of the metal layers is enclosed by one of the roller-embossed sealing beads,
• wherein the roller-embossed sealing beads in the mutually facing layers of the first and the second separator plate are arranged one above the other in the vertical direction in relation to the extension plane of the membrane electrode assembly,
• wherein
• the roller-embossed sealing beads in the mutually facing layers of the first and the second separator plate have different orientations.

A method of producing an arrangement for an electrochemical system comprising a first separator plate and a second separator plate each having a metal layer, and a membrane electrode assembly arranged between the two separator plates, wherein at least one of said separator plates has exactly one metal layer, the method comprising:

• roller embossing a first metal layer in a first transportation direction and roller embossing a second metal layer in a second transportation direction, and arranging the two layers opposite to one another relative to the respective transportation directions,
• rolling embossing flow channels of an active region,
• rolling embossing sealing beads,
• the separator plates each comprising:
• the active region having in each case at least one set of the roller-embossed flow channels for a reaction medium along each outer face of the separator plate, and
• at least one first through-opening for supplying a reaction medium to one of the sets of flow channels, and one second through-opening for conducting the reaction medium away from the set of flow channels,
• wherein, in each of the two separator plates, at least the first through-opening is enclosed by one of the roller-embossed sealing beads,
• wherein the roller-embossed sealing beads in the first and the second separator plate are arranged one above the other in the vertical direction in relation to the extension plane of the membrane electrode assembly,
• wherein the roller-embossed sealing beads in the first and the second separator plate have different orientations,
• wherein the first separator plate is roller-embossed in a first transportation direction and the second separator plate is roller-embossed in a second transportation direction, and said two separator plates are arranged the opposite way to one another in terms of their transportation directions.