ALEXANDRIA, Va., July 30 -- United States Patent no. 12,374,690, issued on July 29, was assigned to PRIME PLANET ENERGY & SOLUTIONS INC. (Tokyo).
"Graphite-based negative electrode active material" was invented by Shinsuke Matsuhara (Miyoshi, Japan), Yusuke Araki (Nagoya, Japan), Yutaka Oyama (Toyota, Japan), Kiyohiko Nakano (Toyota, Japan) and Shuhei Takeshita (Nagakute, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a graphite-based negative electrode active material that can impart both high output characteristics and high cycle characteristics to a nonaqueous electrolyte secondary battery. The graphite-based negative electrode active material disclosed herein is made up of particles hav...