US Patent Issued to GEM (Jiangsu) Cobalt Industry on Sept. 23 for "Preparation method for 2-4 micrometers battery-grade cobalt tetroxide" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,133, issued on Sept. 23, was assigned to GEM (Jiangsu) Cobalt Industry Co. Ltd. (Taizhou, China).

"Preparation method for 2-4 micrometers battery-grade cobalt tetroxide" was invented by Kaihua Xu (Jiangsu, China), Zhenkang Jiang (Jiangsu, China), Aiqing Zhang (Jiangsu, China), Bingzhong Li (Jiangsu, China), Chao Wang (Jiangsu, China), Dongwei Xu (Jiangsu, China), Qiyong Shi (Jiangsu, China), Fan Bi (Jiangsu, China) and Chao Ning (Jiangsu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a preparation method for 2-4 micro metre battery-grade cobalt tetroxide, comprises following steps: 1) adding a cobalt salt solu...