US 12,407,003 B2
Separator plate and electrochemical cell
Rainer Glueck, Dornstadt-Tomerdingen (DE); Tobias Kindler, Staig (DE); Horst Gehring, Orsenhausen (DE); and Thomas Stoehr, Laupheim (DE)
Assigned to REINZ-DICHTUNGS-GMBH, Neu-Ulm (DE)
Filed by Reinz-Dichtungs-GmbH, Neu-Ulm (DE)
Filed on Aug. 18, 2022, as Appl. No. 17/820,842.
Claims priority of application No. 202021104496.9 (DE), filed on Aug. 20, 2021.
Prior Publication US 2023/0058717 A1, Feb. 23, 2023
Int. Cl. H01M 8/0258 (2016.01); C25B 9/60 (2021.01); C25B 9/75 (2021.01); C25B 9/77 (2021.01); H01M 8/0206 (2016.01); H01M 8/0228 (2016.01); H01M 8/0254 (2016.01); H01M 8/0267 (2016.01); H01M 8/0276 (2016.01); H01M 8/18 (2006.01); H01M 8/2483 (2016.01)
CPC H01M 8/0258 (2013.01) [C25B 9/60 (2021.01); C25B 9/75 (2021.01); C25B 9/77 (2021.01); H01M 8/0206 (2013.01); H01M 8/0228 (2013.01); H01M 8/0254 (2013.01); H01M 8/0267 (2013.01); H01M 8/0276 (2013.01); H01M 8/188 (2013.01); H01M 8/2483 (2016.02)] 18 Claims
OG exemplary drawing
 
1. A separator plate for an electrochemical system, comprising:
a first and a second metal layer which are arranged with a respective one of their flat sides adjacent to each other,
wherein the first and the second metal layer each have at least one through-opening for supplying and/or discharging a fluid, said through-openings being arranged in pairs at least substantially coaxially with respect to their axial direction of passage and form a passage opening for the fluid to pass through the separator plate,
wherein circumferential edges of the through-openings of a respective pair of through-openings have a half-bead which at least in part forms the circumferential edge of the respective through-opening and projects out of a layer plane of the respective metal layer in a direction away from the adjacent metal layer,
wherein an open edge of the half-bead of each of the metal layers is angled in the direction of the layer plane of the respective metal layer so as to form a collar,
wherein ends of the collar overlap in a direction perpendicular to the layer plane of the first metal layer and/or the second metal layer,
wherein the collar of the first metal layer is radially further away from the through-opening than the collar of the second metal layer, and
wherein for at least one of the through-openings, the collar of the first metal layer projects at least in part beyond the layer plane of the first metal layer and at least partially into or beyond the layer plane of the second metal layer.