US Patent Issued to CONTEMPORARY AMPEREX TECHNOLOGY, CATL-SICONG NOVEL MATERIALS on Oct. 20 for "Lithium bis(fluorosulfonyl)imide and preparation method thereof, electrolytic solution and secondary battery" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,770,925, issued on Oct. 20, was assigned to CONTEMPORARY AMPEREX TECHNOLOGY Co. Ltd. (Ningde, China) and CATL-SICONG NOVEL MATERIALS Co. LTD (Longyan, China).

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

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for preparing lithium bis(fluorosulfonyl)imide includes a synthesis step, an evaporation step, an extraction step, an alkalinization step, a dehydration step, and a desolventization step."

The patent was filed on Aug. 8, 2023, under Application No. 18/446,4...