Patent · US Expired

Seal construction for a fuel cell electrolyser and process for making a fuel cell with same

US7422818B2 · kind B2 · utility

5Cited by

0References

57Claims

0Family size

Assignees

Bayerische Motoren Werke Aktiengesellschaft · DE
ElringKlinger AG · DE

Inventors

Olav Finkenwirth · Munich, DE
Bernd Kuhn · Frankfurt am Main, DE
Hans-Rainer Zerfass · Burscheid, DE

Key dates

Filing date	Mar 22, 2005
Grant date	Sep 9, 2008
Priority date	—
Expiry date	Mar 22, 2025

Classification

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

Abstract

A sealing structure in a fuel cell and/or an electrolyzer (particularly a solid-oxide fuel cell and/or a solid-oxide electrolyzer) is arranged between neighboring separator plates of a cell stack. The sealing structure is constructed in at least two layers, including at least one insulating layer and at least one sealing layer.

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