Patent · US Active

Sealing assembly for a fuel cell stack

US8663864B2 · kind B2 · utility

1Cited by

3References

23Claims

0Family size

Assignee

ElringKlinger AG · DE

Inventors

Hans-Rainer Zerfass · Burscheid, DE
Armin Diez · Lenningen, DE
Peter Schenk · Bärnau, DE
Wolfgang Fritz · Linden, DE
Peter Lamp · Landsberg am Lech, DE
Manfred Wier · Wenzenbach, DE
Joachim Tachtler · Ismaning, DE

Key dates

Filing date	Aug 3, 2010
Grant date	Mar 4, 2014
Priority date	—
Expiry date	Mar 23, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a fuel cell stack having a plurality of fuel cell units, which are arranged consecutively in a stacking direction, wherein each of the fuel cell units comprises a housing with at least one housing part made of a metallic material, which has an adequate electrical insulation effect and an adequate mechanical strength at a high operating temperature of the fuel cell stack, a sealing assembly is provided and comprises at least one intermediate element made of a metallic material, wherein the intermediate element is soldered to a housing part of a first fuel cell unit at at least one location by a metal solder and is secured to a housing part of a second fuel cell unit at at least another location, wherein the intermediate element and/or the housing part of the first fuel cell unit is provided with a coating made of a ceramic material.

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