Research progress of lithium manganese iron phosphate cathode materials: from preparation to modification

LiFePO 4 is very promising for application in the field of power batteries due to its high specific capacity (170 mAh −1 ), stable structure, safety, low price, and environmental friendliness. However, it is well known that the slow electron transport and Li + transport of LiFePO 4 results in a rate performance that is far below the requirements for small batteries, resulting in a low LiFePO 4 energy density. In order to solve this problem, LiMn 1−x Fe x PO 4 (LMFP) cathode material was synthesized by combining Fe and Mn in a certain ratio, and its material properties were improved. Here, we provide a detailed review of LiMn 1−x Fe x PO 4 anode material preparation. In addition, this review focuses on the preparation of LiMn 1−x Fe x PO 4 and several modification methods to compensate for the inherent deficiencies of certain materials, as well as predicting their future trends.