ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,230,761, issued on Feb. 18, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).
"Power storage device and electronic device" was invented by Kazuhei Narita (Atsugi, Japan) and Ryota Tajima (Isehara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a power storage device whose charging and discharging characteristics are unlikely to be degraded by heat treatment or a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolyte, and an exterior body. The separator is positioned between the positive electrode a...