Electrochemical production of lithium using a lithium amalgam anode

US6287448A · kind A · utility

Assignee

• BASF SE

Inventors

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

Key dates

• Filing date: Mar 20, 2000
• Grant date: Sep 11, 2001
• Expiry date: Mar 20, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C25C3/02
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A process for producing metallic lithium starting from an aqueous solution of at least one lithium salt comprises the following steps: PA1 (I) Production of a lithium amalgam from an aqueous solution of at least one lithium salt; and PA1 (II) Electrolysis using an anode comprising the lithium amalgam, a solid electrolyte which conducts lithium ions, and liquid lithium as cathode, wherein the lithium amalgam as anode is kept in motion.