The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2025
Filed:
May. 10, 2021
Robert Bosch Gmbh, Stuttgart, DE;
Christian Diessner, Muehlacker-Muehlhausen, DE;
Harald Bauer, Ehningen, DE;
Peter Lindner, Sersheim, DE;
Thomas Betzitza, Calw, DE;
Volker Henrichs, Ludwigsburg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for producing a sealed fuel cell () for a fuel cell stack (), comprising a cathode-side distributor plate (K), an anode-side distributor plate (A) and a membrane electrode unit (MEA), said method 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 (B) for sealing the cathode-side distributor plate (K) and a second film web (B) for sealing the anode-side distributor plate (A), 3) punching a cathode-side distributor structure (VK) for the cathode-side distributor plate (K) out of the first film web (B) and an anode-side distributor structure (VA) for the anode-side distributor plate (A) out of the second film web (B), 4) cutting the first film web (B) to produce a first seal (D) for the cathode-side distributor structure (VK) and cutting the second film web (B) to produce a second seal (D) for the anode-side distributor structure (VA), 5) placing the first seal (D) on the cathode-side distributor plate (K) and the second seal (D) 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 (D) on the cathode-side distributor plate (K) and the second seal (D) on the anode-side distributor plate (A) in an integrally joined manner, more particularly to melt said seals together.