US Patent Issued to PRIME PLANET ENERGY & SOLUTIONS on Dec. 2 for "Lithium ion secondary battery and method for producing the lithium ion secondary battery" (Japanese Inventor)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,136, issued on Dec. 2, was assigned to PRIME PLANET ENERGY & SOLUTIONS INC. (Tokyo).

"Lithium ion secondary battery and method for producing the lithium ion secondary battery" was invented by Toshinori Okura (Toyota, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lithium ion secondary battery includes a positive electrode and a negative electrode in which a positive-to-negative electrode capacity ratio between a positive capacity of the positive electrode and a negative capacity of the negative electrode is in a range of 1.02 to 1.40, and a negative electrode irreversible capacity of the negative electrode is larger than a positive electrode ...