US 12,278,353 B2
Systems and methods for removal and recycling of aluminum impurities from battery waste
David Young, Sudbury, MA (US); Tairan Yang, Blacksburg, VA (US); Panni Zheng, Blacksburg, VA (US); and Zheng Li, Blacksburg, VA (US)
Assigned to Li Industries, Inc., Pineville, NC (US)
Filed by Li Industries, Inc., Pineville, NC (US)
Filed on Jun. 17, 2024, as Appl. No. 18/745,378.
Claims priority of provisional application 63/509,661, filed on Jun. 22, 2023.
Prior Publication US 2024/0429479 A1, Dec. 26, 2024
Int. Cl. H01M 10/54 (2006.01); C22B 7/00 (2006.01); C22B 21/00 (2006.01); H01M 4/02 (2006.01); H01M 4/58 (2010.01)
CPC H01M 10/54 (2013.01) [C22B 7/005 (2013.01); C22B 7/008 (2013.01); C22B 21/0023 (2013.01); H01M 4/5825 (2013.01); H01M 2004/028 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method of recycling battery waste, the battery waste including an electrode material and aluminum impurities, the method comprising:
modifying the aluminum impurities to form a doping precursor such that the modifying includes converting the aluminum impurities into a metal layered double hydroxide compound as the doping precursor, the metal including at least one of lithium or aluminum; and
incorporating the doping precursor into the electrode material.