US 11,746,427 B2
Scalable electrolysis cell and stack and method of high-speed manufacturing the same
Scott Blanchet, Chelmsford, MA (US)
Assigned to EVOLOH, INC., Palo Alto, CA (US)
Filed by EvolOH, Inc., Palo Alto, CA (US)
Filed on Feb. 22, 2022, as Appl. No. 17/677,490.
Claims priority of provisional application 63/311,773, filed on Feb. 18, 2022.
Claims priority of provisional application 63/218,446, filed on Jul. 5, 2021.
Prior Publication US 2023/0002920 A1, Jan. 5, 2023
Int. Cl. C25B 9/70 (2021.01); C25B 9/17 (2021.01); C25B 9/67 (2021.01)
CPC C25B 9/70 (2021.01) [C25B 9/17 (2021.01); C25B 9/67 (2021.01)] 32 Claims
OG exemplary drawing
 
1. An electrolysis cell comprising:
a membrane,
an anode electrode,
a cathode electrode,
an anode flow field,
a cathode flow field; and
a bipolar plate assembly comprising a bipolar plate, the cathode flow field, and a fluid distribution frame,
wherein the cathode flow field comprises a porous sheet containing an embedded hydrogen seal such that the porous sheet provides both mechanical reinforcement for the embedded hydrogen seal and an open space for hydrogen gas flow from an active area of the electrolysis cell to one or more hydrogen collection windows,
wherein the embedded hydrogen seal bonds to the cathode flow field, the bipolar plate, and the fluid distribution frame such that these components are bonded together as a physical unit and the cathode flow field is sealed against the environment,
wherein the embedded hydrogen seal and the cathode flow field have the same thickness.