ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,175, issued on March 17, was assigned to PRIME PLANET ENERGY & SOLUTIONS INC. (Tokyo).
"Method for manufacturing secondary battery and secondary battery" was invented by Kentaro Tsukamoto (Kobe, Japan) and Yoshifumi Magari (Hirakata, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A secondary battery having an electrode body including a positive electrode plate, a negative electrode plate, and a separator, is manufactured by steps including preparing a positive electrode precursor, in which a positive electrode active material layer including positive electrode active material and a protective layer having lower electrical conductivity than th...