Patent · US Active

Method of producing a sealing arrangement for a fuel cell stack and a sealing arrangement for a fuel cell stack

US7550018B2 · kind B2 · utility

1Cited by

1References

74Claims

0Family size

Assignee

ElringKlinger AG · DE

Inventors

Hans-Rainer Zerfass · Burscheid, DE
Rudolf Henne · Balingen, DE
Johannes Arnold · Achern, DE

Key dates

Filing date	Sep 7, 2006
Grant date	Jun 23, 2009
Priority date	—
Expiry date	Jun 9, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/4911
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method is provided for producing an electrically insulating sealing arrangement for a fuel cell stack which comprises a plurality of fuel cell units that succeed one another along a stack direction by means of which the housings of the fuel cell units are connectable to one another in such a way that an adequate electrically insulating effect and adequate mechanical rigidity are ensured even at the high operating temperature.The method involves producing a ceramic metal layer and at least partially converting the metal of the ceramic metal layer into an electrically non conductive compound so as to produce a non conductive boundary layer.

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