The synthesis process of lithium iron phosphate has been basically perfected, mainly divided into solid phase method and liquid phase method. Among them, the high-temperature solid-phase reaction method is the most commonly used, and some researchers combine the microwave synthesis method in the solid-phase method and the hydrothermal synthesis method in the liquid-phase method—microwave hydrothermal method.
In addition, the synthesis methods of lithium iron phosphate also include bionic method, cooling drying method, emulsification drying method, pulsed laser deposition method, etc. By choosing different methods, the synthesis of products with small particle size and good dispersion performance can effectively shorten the diffusion path of Li+ , The contact area between the two phases increases, and the diffusion rate of Li+ increases.