Basf Se Corporation

Birgit Gerke

Wolfgang Rohde

Kerstin Schierle-Arndt

Volodymyr Boyko

Ingolf Hennig

Regina Vogelsang

Szilard Csihony

Jean-Pierre Berkan Lindner

Torben Adermann

Daniel Loeffler

Carsten Sueling

Miran Yu

Heino Sommer

Yeni Burk

Fabian Seeler

Nuria Huguet Subiela

Andreas Kempter

Christoph Erk

Frank Pirrung

Lucas Benjamin Henderson

Matthias Voges

Mattias Voges

Anne-Marie Caroline Zieschang

Rui De Oliveira

Frank Rauscher

Nils-Olof Joachim Born

Gareth Smith

Kathrin Michel

A process for the recovery of lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of A) providing a crude lithium hydroxide as a solid, which contains fluoride; and (B) dissolving the crude lithium hydroxide solid with a lower alcohol such as methanol or ethanol provides good separation of lithium in high purity.

Process for the purification of lithium salts

The present invention relates to a process for the recovery of transition metals from battery materials comprising (0.1) providing a battery material which comprises oxidic nickel and/or cobalt compounds, (1.1) heating the battery material above 350° C. to yield a reduced material which contains nickel and/or cobalt in elemental form, (2.1) carbonylating the reduced material with carbon monoxide optionally in the presence of a reactive gas to yield a solid carbonylation residue and a volatile carbonyl which comprises nickel and/or cobalt carbonyl containing compounds, and (3.1) separating the volatile carbonyl from the solid carbonylation residue by evaporation.

Battery recycling by reduction and carbonylation

A process for the recovery of lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of (a) providing a particulate material containing a transition metal compound and/or transition metal, wherein the transition metal is selected from the group consisting of Mn, Ni and Co, and wherein further at least a fraction of said Ni and/or Co, if present, are in an oxidation state lower than +2, and at least a fraction of said Mn, if present, is manganese(II)oxide; which particulate material further contains a lithium salt and a fluoride salt, and which particulate material optionally contains calcium provided that the element ratio calcium to fluorine is 1.7 or less or is zero; (b) treating the material provided in step (a) with a polar solvent and an alkaline earth hydroxide; and (c) separating the solids from the liquid, optionally followed by washing the solid residue with a polar solvent such as water provides good separation of lithium in high purity, and recovery of valuable transition metals.

Process for the recovery of lithium from waste lithium ion batteries

Disclosed herein is a process for the recovery of one or more transition metals and lithium from waste lithium ion batteries or parts thereof. The process includes the steps of (a) providing a particulate material containing a transition metal compound and/or transition metal; (b) treating the material provided in step (a) with a polar solvent and optionally an alkaline earth hydroxide, (c) separating the solids from the liquid, optionally followed by a solid-solid separation step; and (d) treating the solids containing the transition metal in a way to dissolve at least part of the Ni and/or Co. The process provides good separation of lithium in high purity and of transition metal useful for the production of battery cathode active materials.

Process for the recovery of lithium and other metals from waste lithium ion batteries

Process for the recovery of transition metal from spent lithium ion batteries containing nickel, wherein said process comprises the steps of (a) heating a lithium containing transition metal oxide material to a temperature in the range of from 200 to 900° C. in the presence of H, (b) treatment of the product obtained in step (a) with an aqueous medium, (c) solid-solid separation for the removal of Ni from the solid residue of step (b), (d) recovery of Li as hydroxide or salt from the solution obtained in step (b), (e) extraction of Ni and, if applicable, Co from the solid Ni-concentrate obtained in step (c).

Process for the recycling of spent lithium ion cells

Growing community of inventors

Ludwigshafen, Germany

Birgit Gerke