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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.:

US 11509000 B1

PDFFull Text
Date of Patent:
Nov. 22, 2022

Filed:

Apr. 14, 2020

Process for the recovery of cathode materials in the recycling of batteries by removing aluminum and iron

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:

Alston & Bird LLP

Primary Examiner:

Steven J Bos

Int. Cl.
CPC ...
H01M 10/00 (2006.01); H01M 10/54 (2006.01); C22B 3/06 (2006.01); C22B 3/44 (2006.01); C22B 7/00 (2006.01); C22B 15/00 (2006.01); C22B 3/00 (2006.01); C22B 26/12 (2006.01); C22B 47/00 (2006.01);
U.S. Cl.
CPC ...
H01M 10/54 (2013.01); C22B 3/06 (2013.01); C22B 3/44 (2013.01); C22B 7/007 (2013.01); C22B 15/0067 (2013.01); C22B 23/0415 (2013.01); C22B 23/0461 (2013.01); C22B 26/12 (2013.01); C22B 47/00 (2013.01);
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.

Find Patent Forward Citations

Alemrajabi, Mahmood. (2022). Process for the recovery of cathode materials in the recycling of batteries by removing aluminum and iron (U.S. Patent No. 11509000). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11509000

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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