US 11,990,651 B2
Fuel cell assembly having a gas diffusion electrode separated from a membrane
Nico Riede, Ludwigsburg (DE)
Assigned to AUDI AG, Ingolstadt (DE)
Appl. No. 17/279,507
Filed by AUDI AG, Ingolstadt (DE)
PCT Filed Aug. 1, 2019, PCT No. PCT/EP2019/070743
§ 371(c)(1), (2) Date Mar. 24, 2021,
PCT Pub. No. WO2020/064184, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 10 2018 216 266.2 (DE), filed on Sep. 25, 2018.
Prior Publication US 2021/0344021 A1, Nov. 4, 2021
Int. Cl. H01M 8/0273 (2016.01); H01M 4/88 (2006.01); H01M 8/1004 (2016.01); H01M 8/242 (2016.01); H01M 8/10 (2016.01)
CPC H01M 8/0273 (2013.01) [H01M 8/1004 (2013.01); H01M 8/242 (2013.01); H01M 4/8807 (2013.01); H01M 2008/1095 (2013.01); H01M 2250/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A system, comprising:
a fuel cell assembly including:
a cathode gas diffusion layer;
an anode gas diffusion layer;
a membrane located between the cathode gas diffusion layer and the anode gas diffusion layer;
a cathode located between the membrane and the cathode gas diffusion layer;
an anode located between the membrane and the anode gas diffusion layer; and
a frame having a recess, the frame held by adhesive layers against the cathode and anode gas diffusion layers,
wherein one of the cathode and the anode is arranged on one of the cathode and anode gas diffusion layers to form a gas diffusion electrode, wherein there is a gap between the gas diffusion electrode and the membrane such that the gas diffusion electrode is not in direct contact with the membrane;
wherein the other of the cathode and anode is arranged on a side of the membrane opposite the gas diffusion electrode to form a one-sided membrane electrode arrangement, and an electrode-free side of the membrane is bound to the frame directly by the adhesive layer.