The United States Patent and Trademark Office (USPTO) has granted patent US12586779B2 to SAMSUNG SDI CO., LTD. for a novel composite anode active material, an anode, and a lithium secondary battery. The patent specifically describes a composite material incorporating a silicon-carbon composite, a first graphite with an average particle diameter D50 of about 10 μm or greater, and a second graphite (different from the first) with an average particle diameter D50 of about 18 μm or greater.

This patent grant signifies a new technological development in battery materials, particularly for lithium secondary batteries. While this is a patent grant and not a regulatory rule, it indicates a specific area of innovation that may influence future industry standards or product development in the energy storage sector. Companies involved in battery manufacturing or material science may wish to review the patent details for competitive intelligence or potential licensing opportunities.