US Patent Issued to NORTHVOLT, METAL TRADE OVERSEAS on May 26 for "Process for preparing battery grade metal sulphate solutions" (Finnish, Swedish Inventors)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,362, issued on May 26, was assigned to NORTHVOLT AB (Stockholm) and METAL TRADE OVERSEAS AG (Zug, Switzerland).

"Process for preparing battery grade metal sulphate solutions" was invented by Cornelia Lantto (Enskede, Sweden), Tom Niemi (Karleby, Finland), Pekka Alisaari (Somero, Finland), Esa Lindell (Pori, Finland), Rauno Luoma (Pori, Finland), Tuomo Laukkanen (Sampu, Finland), Pekka Tynjala (Joensuu, Finland) and Ulla Lassi (Kempele, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "Battery grade metal sulfate solutions can be prepared directly from electrolytically produced metal objects, such as cathode plates, when these are subjected to an...