ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,756,015, issued on Oct. 6, was assigned to CONTEMPORARY AMPEREX TECHNOLOGY Co. Ltd. (Ningde, China) and CATL-SICONG NOVEL MATERIALS Co. LTD (Longyan City, China).

"Lithium bis(fluorosulfonyl)imide and preparation method thereof, electrolytic solution and secondary battery" was invented by Sicong Cheng (Longyan City, China) and Qisen Huang (Ningde, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application provides a method for preparing lithium bis(fluorosulfonyl)imide, which may include the following steps: (a) a synthesis step; (b) an evaporation step; (c) an extraction step; (d) an alkalinization step; (e) a dehydration step; (f) a d...