US Patent Issued to National Institute of Advanced Industrial Science and Technology on Feb. 10 for "Low-crystalline phosphorouscontaining vanadium sulfide, method for producing, active material, electrode, and lithium ion secondary battery including the same" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,595, issued on Feb. 10, was assigned to National Institute of Advanced Industrial Science and Technology (Tokyo).

"Low-crystalline phosphorouscontaining vanadium sulfide, method for producing, active material, electrode, and lithium ion secondary battery including the same" was invented by Yuki Umemura (Osaka, Japan), Tomonari Takeuchi (Osaka, Japan) and Hikari Sakaebe (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electrode active material for lithium-ion secondary batteries that has a sufficiently high initial capacity, improved charge-and-discharge cycle characteristics, and improved coulombic efficiency in the mid-term charge-an...