Current collector for a SOFC fuel-cell pile

US6268076A · kind A · utility

Assignee

• Forschungszentrum Jülich GmbH · DE

Inventors

• Uwe Diekmann · Paderborn, DE
• Helmut Ringel · Niederzier, DE

Key dates

• Filing date: Aug 13, 1999
• Grant date: Jul 31, 2001
• Expiry date: Aug 13, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/50
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A current collector for a SOFC fuel-cell pile including a base body made from a first heat-resistant ferrite alloy which contains chromium and aluminum and has an aluminum content of more than 2 wt %, the base body defining guide ducts for feeding fuels, and at least one contact element made from a second heat-resistant ferrite alloy which contains chromium and has an aluminum content of less than 2 wt %, the at least one contact element being fastened facing away from the base body at the end of a ridge of the base body, which bounds a side wall of a guide duct. In a fuel cell provided with electrodes and the current collector, the volatilization of chromium oxides is largely suppressed, while adequate electrical conductivity of the contact points between the current collector and the electrodes are simultaneously ensured.