Global patent index - EP 1041177 A1

EP 1041177 A1 2000-10-04 - Process for the electrochemical production of lithium

Title (en)

Process for the electrochemical production of lithium

Title (de)

Verfahren zur elektrochemischen Herstellung von Lithium

Title (fr)

Procédé de production électrochimique de lithium

Publication

EP 1041177 A1 (DE)

Application

EP 00106014 A

Priority

DE 19914221 A

Abstract (en)

Lithium production from aqueous solution, by lithium amalgam formation and use as a moving anode in an electrolysis cell, is new. Metallic lithium is produced from an aqueous lithium salt solution by forming a lithium amalgam from the solution and using amalgam as a moving anode in an electrolysis cell containing a lithium ion conductive solid electrolyte and a molten lithium cathode. Preferred Features: The lithium amalgam anode is moved by stirring and/or pumping under atmospheric or slightly elevate pressure. The amalgam is produced by chlor-alkali electrolysis.

Abstract (de)

Verfahren zur Herstellung von metallischem Lithium ausgehend von einer wäßrigen Lösung mindestens eines Lithiumsalzes, das die folgenden Stufen umfaßt: (I) Herstellung eines Lithiumamalgams aus einer wäßrigen Lösung mindestens eines Lithiumsalzes; und (II) Elektrolyse mit einer das Lithiumamalgam enthaltenden Anode, einem Lithiumionen-leitenden Festelektrolyt und flüssigem Lithium als Kathode, wobei das Lithiumamalgam als Anode bewegt wird.

IPC 1-7 (main, further and additional classification)

C25C 3/02; C25C 1/02

IPC 8 full level (invention and additional information)

C25C 1/02 (2006.01); C25C 1/24 (2006.01); C25C 3/02 (2006.01)

CPC (invention and additional information)

C25C 1/02 (2013.01); C25C 3/02 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1041177 A1 20001004; EP 1041177 B1 20040616; AT 269432 T 20040715; CN 1198970 C 20050427; CN 1269430 A 20001011; DE 19914221 A1 20001005; ES 2220280 T3 20041216; JP 2000290791 A 20001017; RU 2250274 C2 20050420; US 6287448 B1 20010911

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