US Patent Issued to TIANQI LITHIUM on March 25 for "EV-grade lithium sulfide and preparation method for the same" (Chinese Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,269, issued on March 25, was assigned to TIANQI LITHIUM Corp. (Sichuan, China).

"EV-grade lithium sulfide and preparation method for the same" was invented by Zhen Lei (Suining, China), Chuan Xu (Suining, China), Ge Chen (Suining, China), Huan Tian (Suining, China), Liu Yang (Suining, China), Yibao Gao (Suining, China) and Xi Lu (Suining, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A preparation method for EV-grade lithium sulfide includes: mixing and reacting sulfur powder, metallic lithium and a lithium-containing additive to obtain a crude lithium sulfide product, and then pulverizing and calcining the crude lithium sulfide product to r...