US Patent Issued to Semiconductor Energy Laboratory on April 8 for "Method for manufacturing positive electrode active material, and secondary battery" (Japanese Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,272,822, issued on April 8, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Method for manufacturing positive electrode active material, and secondary battery" was invented by Masahiro Takahashi (Kanagawa, Japan), Mayumi Mikami (Kanagawa, Japan), Yohei Momma (Kanagawa, Japan), Teruaki Ochiai (Kanagawa, Japan) and Jyo Saitou (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A positive electrode active material has a small difference in a crystal structure between the charged state and the discharged state. For example, the crystal structure and volume of the positive electrode active material, which has a layered ...