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:
Jun. 23, 2026
Filed:
Mar. 31, 2023
Applicant:
Ascend Elements, Inc., Westborough, MA (US);
Inventor:
Jong Hyun Shim, Westborough, MA (US);
Assignee:
Ascend Elements, Inc., Westborough, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G 53/40 (2025.01); B01D 21/01 (2006.01); H01M 10/54 (2006.01);
U.S. Cl.
CPC ...
C01G 53/40 (2013.01); B01D 21/01 (2013.01); H01M 10/54 (2013.01); C01P 2004/32 (2013.01); C01P 2004/61 (2013.01); C01P 2006/11 (2013.01); C01P 2006/40 (2013.01); C01P 2006/80 (2013.01);
Abstract
A hydrometallurgical coprecipitation process for leached cathode materials includes adjusting a pH and agitation of an aqueous acidic leach solution in successive stages of a multi-stage reactor system for generating coprecipitated particles of a targeted morphology, particle size range, and surface characteristics. The aqueous acidic leach solution (leach solution) initially forms seed particles based on increasing pH. In successive stages, the pH and the stirring rate are varied for growing the seed particles into progressively larger particles as additional leach solution is introduced.