ALEXANDRIA, Va., March 3 -- United States Patent no. 12,567,579, issued on March 3, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).

"Negative electrode for secondary battery, and secondary battery" was invented by Yuta Kuroda (Osaka, Japan) and Tatsuro Sasa (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "This negative electrode for a secondary battery includes a negative electrode mixture layer that includes: a negative electrode active material containing graphite particles and a Si-containing material; and a binder. The Si-containing material includes a Si-containing material A that includes a carbon phase and silicon particles dispersed in the carbon phase....