ALEXANDRIA, Va., July 23 -- United States Patent no. 12,368,153, issued on July 22, was assigned to SAMSUNG SDI Co. LTD. (Yongin-si, South Korea).

"Negative active material and rechargeable lithium battery including same" was invented by Yookyung Kim (Yongin-si, South Korea), Youngugk Kim (Yongin-si, South Korea), Jungho Lee (Yongin-si, South Korea) and Jaehou Nah (Yongin-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A negative active material, including a first active material including a silicon core and a carbon coating layer on the core, a carbon second active material having an aspect ratio of about 4 to about 100, and a crystalline carbon third active material."

The patent was filed o...