US Patent Issued to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT on June 23 for "Negative electrode active material for secondary battery, and secondary battery using same" (Japanese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,195, issued on June 23, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).

"Negative electrode active material for secondary battery, and secondary battery using same" was invented by Keita Okazaki (Osaka Fu, Japan) and Yohei Uchiyama (Hyogo Ken, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A negative electrode active material for a secondary battery includes composite particles. The composite particles include a lithium silicate phase and a silicon phase dispersed in the lithium silicate phase, wherein the silicon phase has lined portions in the lithium silicate phase, a maximum diameter D1 and a minimum dia...