ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,826, issued on May 20, was assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) Ltd. (Hong Kong).
"Method for producing lithium iron phosphate precursor by using retired lithium iron phosphate battery as raw material" was invented by Yongshou Lin (Ningde, China), Guobao Wang (Ningde, China), Ke Wang (Ningde, China), Jiang Liu (Ningde, China) and Bin Yao (Ningde, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a lithium iron phosphate precursor by using a retired lithium iron phosphate battery as a raw material is provided, which includes steps of: soaking a battery cell in acid, performing electrolysis to reclaim coppe...