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. 27, 2024
Filed:
Aug. 02, 2022
Applicant:
Ascend Elements, Inc., Westborough, MA (US);
Inventors:
Eric Gratz, Worcester, MA (US);
Kee-Chan Kim, Worcester, MA (US);
Assignee:
Ascend Elements, Inc., Westborough, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 26/12 (2006.01); C22B 1/00 (2006.01); C22B 3/06 (2006.01);
U.S. Cl.
CPC ...
C22B 26/12 (2013.01); C22B 1/005 (2013.01); C22B 3/06 (2013.01);
Abstract
The inventions described herein provide methods and systems for recycling lithium iron phosphate batteries, including: adding an oxidizing agent to a recycling stream of lithium iron phosphate (LiFePO) batteries to form a leach solution; filtering the leach solution to remove a residue and obtain a lithium rich solution; modifying pH of the lithium rich solution for filtering impurities and obtaining a purified Li solution; and adding a precipitant to the purified Li solution thereby precipitating a lithium compound.