ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,634, issued on April 7, was assigned to PRIME PLANET ENERGY & SOLUTIONS INC. (Tokyo).
"Producing method for lithium-ion secondary battery" was invented by Kazuma Mima (Toyota, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A producing method for a lithium-ion secondary battery includes a positive-electrode-plate producing step of producing a positive electrode plate having a positive active material layer on a surface of a positive current collecting foil, an electrode-body producing step of producing an electrode body provided with the positive electrode plate and a negative electrode plate, a housing step of housing the electrode body inside...