ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,520, issued on May 13, was assigned to GREEN LI-ION PTE. LTD. (Singapore).
"Processes and systems for purifying and recycling lithium-ion battery waste streams" was invented by Ebrahim Akhondi (Singapore) and Reza Katal (Singapore).
According to the abstract* released by the U.S. Patent & Trademark Office: "Processes and systems for recovering metals from a lithium-ion battery waste stream include optionally conducting a leaching process to form a leachate stream, purifying the leachate stream in a first reactor to remove fluorine (F), phosphate (P), and one or more impurity metals selected from the group consisting of: copper (Cu), aluminum (Al), iron (Fe), and titanium (Ti), se...