Porous cobalt electrodes for alkaline accumulators and hybrid cell therewith and air electrode

US3986892A · kind A · utility

Inventors

• Henning Ewe · Hamburg, DE
• Eduard W. Justi · Braunschweig, DE

Key dates

• Filing date: Dec 10, 1973
• Grant date: Oct 19, 1976
• Expiry date: Dec 10, 1993

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12861
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A porous, preferably negative, electrode for alkaline accumulators, characterized by the fact that its electro-chemically active inner surface amounts to between 1 and 20 sp.m. per gram for a volume porosity of between 30 and 85% and that its pore interval ranges between 0.15 and 1.0 .mu.m.