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:
Apr. 07, 2026
Filed:
Sep. 30, 2022
Applicant:
Ascend Elements, Inc., Westborough, MA (US);
Inventors:
Kee-Chan Kim, Westborough, MA (US);
Matthew Eggert, Westford, MA (US);
Assignee:
Ascend Elements, Inc., Westborough, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/54 (2006.01); C22B 3/00 (2006.01); C22B 7/00 (2006.01);
U.S. Cl.
CPC ...
H01M 10/54 (2013.01); C22B 7/007 (2013.01); C22B 23/043 (2013.01); C22B 23/0453 (2013.01);
Abstract
Recycling of nickel-metal hydride (NiMH) batteries extracts substantially pure nickel based on adding a leach agent to granular cathode material resulting from agitation of the NiMH batteries to form a leach solution. A pH of the leach solution is maintained for precipitating iron, aluminum and lanthanide rare earth elements (REE) for yielding a nickel solution for forming a cathode material precursor in a recycled battery, often with a high nickel content.