Patent · US Active

Fuel cell stack

US12347895B2 · kind B2 · utility

0Cited by

1References

18Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Arnold Gente · Stuttgart, DE
Eberhard Maier · Weiler-Langweiler, DE

Key dates

Filing date	Nov 30, 2020
Grant date	Jul 1, 2025
Priority date	—
Expiry date	May 12, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a fuel cell stack (100) having at least one fuel cell (101) which has a membrane (CCM) for separating an anode side (A) of the fuel cell (101) from a cathode side (K) of the fuel cell (101), an anode-side gas diffusion layer (GDLA), a cathode-side gas diffusion layer (GDLK) and a bipolar plate (BPP) for separating the fuel cell (101) from an adjacent fuel cell (101) 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 (10) in the edge region (R) of the anode side (A) or of the cathode side (K).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.