ALEXANDRIA, Va., March 24 -- United States Patent no. 12,586,820, issued on March 24, was assigned to Hyundai Motor Co. (Seoul, South Korea), Kia Corp. (Seoul, South Korea) and Hanbat National University Industry-Academic Cooperation Foundation (Daejeon, South Korea).

"Electrolyte for lithium secondary batteries comprising ionic liquid and cosolvent and lithium secondary battery comprising the same" was invented by Sam Ick Son (Suwon-si, South Korea), Sun Yul Ryou (Daejeon, South Korea), Phiri Isheunesu (Daejeon, South Korea) and Hyeong Su Bae (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electrolyte for lithium secondary batteries includes an ionic liquid and cosolvents and a lithi...