US Patent Issued to Group14 Technologies on Oct. 20 for "Composite particles, negative electrode mixture layer and lithium-ion secondary battery" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,770,864, issued on Oct. 20, was assigned to Group14 Technologies Inc. (Woodinville, Wash.).

"Composite particles, negative electrode mixture layer and lithium-ion secondary battery" was invented by Yuji Ito (Tokyo), Masato Fujita (Tokyo), Akihisa Tonegawa (Tokyo), Takayuki Kurita (Tokyo) and Hirofumi Inoue (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "One embodiment of the present invention is composite particles containing silicon and carbon, which are characterized as follows. When the cross-sectional diameter and the silicon content rate of the composite particles are measured by cross-sectional SEM-EDS and composite particles having a cross-...