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:
Jul. 01, 2025
Filed:
Nov. 30, 2020
Robert Bosch Gmbh, Stuttgart, DE;
Arnold Gente, Stuttgart, DE;
Eberhard Maier, Koengen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a fuel cell stack () having at least one fuel cell () which has a membrane (CCM) for separating an anode side (A) of the fuel cell () from a cathode side (K) of the fuel cell (), an anode-side gas diffusion layer (GDLA), a cathode-side gas diffusion layer (GDLK) and a bipolar plate (BPP) for separating the fuel cell () from an adjacent fuel cell () or a housing. According to the invention, the membrane (CCM) protrudes beyond the anode-side gas diffusion layer (GDLA) and the cathode-side gas diffusion layer (GDLK) in an edge region (R) located outside an active area (AF) of the membrane (CCM), and the membrane (CCM) has a centering dam () in the edge region (R) of the anode side (A) or of the cathode side (K).