US Patent Issued to Semiconductor Energy Laboratory on March 4 for "Positive electrode active material, secondary battery, and electronic device" (Japanese Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,244,007, issued on March 4, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Positive electrode active material, secondary battery, and electronic device" was invented by Yohei Momma (Kanagawa, Japan), Hiroshi Kadoma (Kanagawa, Japan), Yoshihiro Komatsu (Kanagawa, Japan), Shiori Saga (Kanagawa, Japan) and Shunpei Yamazaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A positive electrode active material in which a capacity decrease caused by charge and discharge cycles is suppressed is provided. Alternatively, a positive electrode active material having a crystal structure that is unlikely to be broken by repeated charg...