US Patent Issued to Samsung SDI on Oct. 14 for "Negative active material for rechargeable lithium battery, method of preparing the same and rechargeable lithium battery including the same" (South Korean Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,767, issued on Oct. 14, was assigned to Samsung SDI Co. Ltd. (Yongin-si, South Korea).

"Negative active material for rechargeable lithium battery, method of preparing the same and rechargeable lithium battery including the same" was invented by Sang-Eun Park (Yongin-si, South Korea) and Young-Ugk Kim (Yongin-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A negative active material for a rechargeable lithium battery includes a core including a SiO2 matrix and a Si grain, and a coating layer continuously or discontinuously coated on the core. The coating layer includes SiC and C, and the peak area ratio of the SiC (111) plane to the Si...