Mini-Review on the Preparation of Iron Phosphate for Batteries

Lithium iron phosphate (LiFePO₄, LFP) batteries have recently gained significant traction in the industry because of several benefits, including affordable pricing, strong cycling performance, and consistent safety performance. In the preparation of lithium iron phosphate by carbothermic reduction, iron phosphate (FePO₄, FP) as one of the raw materials is closely related to the electrochemical performance of lithium iron phosphate, and its particle agglomeration, morphology, crystallinity, and other characteristics will affect lithium iron phosphate. This review mainly discusses the structure and preparation method of iron phosphate, one of the raw materials of lithium iron phosphate. It focuses on the preparation method of iron phosphate. Finally, a summary and future development directions for the preparation of iron phosphate are proposed.