Patent · US Active

Contact device and fuel cell stack or fuel cell block comprising one such contact device

US8067131B2 · kind B2 · utility

1Cited by

5References

21Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Albert Hammerschmidt · Erlangen, DE
Herbert Hartnack · Erlangen, DE
Arno Mattejat · Bubenreuth, DE
Igor Mehltretter · Buckenhof, DE

Key dates

Filing date	Apr 13, 2004
Grant date	Nov 29, 2011
Priority date	—
Expiry date	May 14, 2027

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 contact device which is arranged in a terminal compartment of a fuel cell stack and is used to electrically contact the fuel cell stack. According to the invention, the surface of said contact device is at least partially provided with a hydrophobic surface layer, facilitating the removal of water, e.g., condensation water, from the terminal compartment and thus from the fuel cell stack.

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