Bipolar plate, useful for fuel cell- or electrolytic converter stacks, comprises many bipolar plates arranged in stack, and an electrolyte membrane respectively provided between two adjacent bipolar plates and a gas diffusion layer

摘要

Bipolar plate (1), comprises many bipolar plates arranged in stack, where an electrolyte membrane is respectively provided between two adjacent bipolar plates and has a gas diffusion layer on both sides, and each bipolar plate contains two bipolar half-plates (2), which are electrically conductively connected to one another and between which temperature control channels are provided. At least one supporting element (5) is provided in the edge region (3) of the bipolar plate in a cavity (4) between two mutually superposed bipolar half-plates. Bipolar plate (1), comprises many bipolar plates arranged in stack, where an electrolyte membrane is respectively provided between two adjacent bipolar plates and has a gas diffusion layer on both sides, and each bipolar plate contains two bipolar half-plates (2), which are electrically conductively connected to one another and between which temperature control channels are provided. At least one supporting element (5) is provided in the edge region (3) of the bipolar plate in a cavity (4) between two mutually superposed bipolar half-plates, which protect and safeguard the surface areas of the outer sides of the bipolar plates in the region of sealing provided between two adjacent bipolar plates against deformation due to compressive stresses.