Structures and fabrication techniques for solid state electrochemical devices

US7351488B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Steven J. Visco · Berkeley, US
• Craig P. Jacobson · Lafayette, US
• Lutgard C. DeJonghe · Lafayette, US

Key dates

• Filing date: Jun 20, 2006
• Grant date: Apr 1, 2008
• Expiry date: Jul 27, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49115
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Porous substrates and associated structures for solid-state electrochemical devices, such as solid-oxide fuel cells (SOFCs), are low-cost, mechanically strong and highly electronically conductive. Some preferred structures have a thin layer of an electrocatalytically active material (e.g., Ni—YSZ) coating a porous high-strength alloy support (e.g., SS-430) to form a porous SOFC fuel electrode. Electrode/electrolyte structures can be formed by co-firing or constrained sintering processes.