US Patent Issued to Semiconductor Energy Laboratory on April 15 for "Lithium cobalt aluminum oxide positive electrode active material including aluminum-containing coating film and secondary battery" (Japanese Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,366, issued on April 15, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Lithium cobalt aluminum oxide positive electrode active material including aluminum-containing coating film and secondary battery" was invented by Jyo Saito (Kanagawa, Japan), Mayumi Mikami (Kanagawa, Japan), Yohei Momma (Kanagawa, Japan), Teruaki Ochiai (Kanagawa, Japan), Tatsuyoshi Takahashi (Kanagawa, Japan) and Kazuhei Narita (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A positive electrode active material that has high capacity and excellent charge and discharge cycle performance for a secondary battery is provided. A positive electrode a...