Method for electrochemically producing an alkali metal from an aqueous solution

US6770187B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Hermann Putter · Neustadt, DE
• Günther Huber · Munich, DE
• Kerstin Schierle-Arndt · Zwingenberg, DE
• Dieter Schlafer · Ludwigshafen, DE
• Josef Guth · Freinsheim, DE

Key dates

• Filing date: Feb 25, 2002
• Grant date: Aug 3, 2004
• Expiry date: Sep 7, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to an electrolysis cell comprising an anode compartment which comprises an aqueous solution of at least one alkali metal salt, a cathode compartment and a solid electrolyte which separates the anode compartment and the cathode compartment from one another, wherein that part of the surface of the solid electrolyte which is in contact with the anode compartment and/or that part of the surface of the solid electrolyte which is in contact with the cathode compartment has/have at least one further ion-conducting layer.