	US 12,407,004 B2
	Method for producing a sealed fuel cell
Christian Diessner, Muehlacker-Muehlhausen (DE); Harald Bauer, Ehningen (DE); Peter Lindner, Sersheim (DE); Thomas Betzitza, Calw (DE); and Volker Henrichs, Ludwigsburg (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Appl. No. 17/926,163
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed May 10, 2021, PCT No. PCT/EP2021/062267 § 371(c)(1), (2) Date Nov. 18, 2022, PCT Pub. No. WO2021/233707, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 10 2020 206 255.2 (DE), filed on May 19, 2020.
Prior Publication US 2023/0197982 A1, Jun. 22, 2023
Int. Cl. H01M 8/0286 (2016.01); H01M 8/0276 (2016.01); H01M 8/0284 (2016.01)

CPC H01M 8/0286 (2013.01) [H01M 8/0276 (2013.01); H01M 8/0284 (2013.01)]

18 Claims

1. A method for manufacturing a sealed fuel cell (101) for a fuel cell stack (100), comprising the following steps:

1)| providing a cathode-side distributor plate (K) and an anode-side distributor plate (A),

2) Providing a first film web (B1) for sealing the cathode-side distributor plate (K) and a second film web (B2) for sealing the anode-side distributor plate (A),

3) Punching out a cathode-side distributor structure (VK) for the cathode-side distributor plate (K) from the first film web (B1) and an anode-side distributor structure (VA) for the anode-side distributor plate (A) from the second film web (B2),

4) Cutting the first film web (B1) to produce a first seal (D1) for the cathode-side distributor structure (VK) and the second film web (B2) to produce a second seal (D2) for the anode-side distributor structure (VA),

5) Placing the first seal (D1) on the cathode-side distributor plate (K) and the second seal (D2) on the anode-side distributor plate (A),

6) Heating the cathode-side distributor plate (K) and the anode-side distributor plate (A) in order to connect together the first seal (D1) on the cathode-side distributor plate (K) and the second seal (D2) on the anode-side distributor plate (A) in an integrally joined manner.