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:
Aug. 05, 2025
Filed:
Oct. 17, 2022
Applicant:
Northvolt Ab, Stockholm, SE;
Inventors:
Mahmood Alemrajabi, Stockholm, SE;
Ingrid Karlsson, Stockholm, SE;
Ragnar Sjödahl, Stockholm, SE;
Emma Nehrenheim, Stockholm, SE;
Martina Petranikova, Gothenburg, SE;
Cristian Tunsu, Gothenburg, SE;
Assignee:
NORTHVOLT AB, Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/54 (2006.01); B09B 3/00 (2022.01); B09B 3/30 (2022.01); B09B 3/70 (2022.01); B09B 101/16 (2022.01); C22B 1/00 (2006.01); C22B 3/00 (2006.01); C22B 3/06 (2006.01); C22B 3/20 (2006.01); C22B 3/44 (2006.01); C22B 7/00 (2006.01); C22B 15/00 (2006.01); C22B 26/12 (2006.01); C22B 47/00 (2006.01);
U.S. Cl.
CPC ...
H01M 10/54 (2013.01); B09B 3/00 (2013.01); B09B 3/30 (2022.01); B09B 3/70 (2022.01); C22B 1/005 (2013.01); C22B 3/06 (2013.01); C22B 3/20 (2013.01); C22B 3/44 (2013.01); C22B 7/006 (2013.01); C22B 7/007 (2013.01); C22B 15/0067 (2013.01); C22B 23/0415 (2013.01); C22B 23/0453 (2013.01); C22B 23/0461 (2013.01); C22B 26/12 (2013.01); C22B 47/00 (2013.01); C22B 47/0081 (2013.01); B09B 2101/16 (2022.01); Y02P 10/20 (2015.11); Y02W 30/84 (2015.05);
Abstract
A process for removal of aluminium and iron in the recycling of rechargeable batteries comprising providing a leachate from black mass, adding phosphoric acid (HPO) to said leachate and adjusting the pH to form iron phosphate (FePO) and aluminium phosphate (AlPO), precipitating and removing the formed FePOand AlPO, and forming a filtrate for further recovery of cathode metals, mainly NMC-metals and lithium.