US 11,984,625 B2
Method for producing an electrochemically active unit and support element for an assembly of an electrochemically active unit
Peter Stahl, Metzingen (DE); and Juergen Kraft, Metzingen (DE)
Assigned to EKPO FUEL CELL TECHNOLOGIES GMBH, Dettingen (DE)
Filed by ElringKlinger AG, Dettingen (DE)
Filed on Dec. 31, 2020, as Appl. No. 17/139,482.
Application 17/139,482 is a continuation of application No. PCT/EP2019/067367, filed on Jun. 28, 2019.
Claims priority of application No. 10 2018 115 997.8 (DE), filed on Jul. 2, 2018.
Prior Publication US 2021/0126266 A1, Apr. 29, 2021
Int. Cl. H01M 8/02 (2016.01); H01M 8/0273 (2016.01); H01M 8/0286 (2016.01)
CPC H01M 8/0286 (2013.01) [H01M 8/0273 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method for producing an electrochemically active unit that comprises a membrane and at least one assembly, which comprises a gas diffusion layer and a sealing element produced on the gas diffusion layer, wherein the method comprises the following:
producing the sealing element on the gas diffusion layer;
connecting the sealing element and/or the gas diffusion layer to a support element;
assembling the membrane and the at least one assembly, which comprises the gas diffusion layer and the sealing element, to form the electrochemically active unit;
wherein a support element core region connected to the sealing element and/or to the gas diffusion layer is separated out of the support element.