ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,211,973, issued on Jan. 28, was assigned to PRIME PLANET ENERGY & SOLUTIONS INC. (Tokyo).
"Secondary battery" was invented by Yasuhiro Sakashita (Nisshin, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a technology for preventing detachment of a collector bundle or a collector terminal derived from collector breakage. A wound electrode body of the secondary battery disclosed herein includes: a core portion in which electrode mix layers of electrode sheets face each other; a collector wound portion resulting from winding of uncoated portions of the electrode sheets; and a collector bundle which is formed in a partial...