The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2025
Filed:
Jul. 24, 2020
Basf SE, Ludwigshafen am Rhein, DE;
Wolfgang Rohde, Ludwigshafen, DE;
Birgit Gerke, Ludwigshafen, DE;
Regina Vogelsang, Ludwigshafen, DE;
Matthias Voges, Ludwigshafen, DE;
Kerstin Schierle-Arndt, Ludwigshafen, DE;
Fabian Seeler, Ludwigshafen, DE;
Torben Adermann, Ludwigshafen, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
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.