METHOD FOR PRODUCING LITHIUM IRON PHOSPHATE PRECURSOR BY USING RETIRED LITHIUM IRON PHOSPHATE BATTERY AS RAW MATERIAL

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 copper, oxidizing ferrous iron, precipitating iron phosphate, and precipitating lithium carbonate. After precipitation is completed, performing one-step reclaim to obtain the lithium iron phosphate precursor.