What is the synthesis process of lithium iron phosphate batteries?

During the charging process, some lithium ions in lithium iron phosphate were removed, passed through the electrolyte to the negative electrode, and embedded in the negative electrode carbon material. At the same time, the electrons were released from the positive electrode, reached the negative electrode from the external circuit to maintain the balance of chemical reactions. During the discharge process, the lithium ion was removed from the negative electrode, reached the positive electrode through the electrolyte, and the electrons were released at the same time.

Lithium iron phosphate batteries have the advantages of high working voltage, high energy density, long circular life, good safety performance, small self -discharge rate, and no memory effect.

The synthesis process of lithium iron phosphate has been basically improved, mainly divided into solid phase and liquid phase method. Among them, the high -temperature solid reaction method is the most commonly used. Some researchers combine the microwave synthesis method in the solid -phase method and the water thermal synthesis method in the liquid phase method -microwave water thermal method.

In addition, the synthesis method of lithium iron phosphate also includes bionic method, cooling drying method, emulsification drying method, pulse laser deposition method, etc. By selecting different methods, products with small granularity and good decentralized performance can effectively shorten the diffusion path of L+LI+ The area of contact between the two phases increases, and the diffusion speed of Li+has accelerated.During the charging process, some lithium ions in lithium iron phosphate were removed, passed through the electrolyte to the negative electrode, and embedded in the negative electrode carbon material. At the same time, the electrons were released from the positive electrode, reached the negative electrode from the external circuit to maintain the balance of chemical reactions. During the discharge process, the lithium ion was removed from the negative electrode, reached the positive electrode through the electrolyte, and the electrons were released at the same time.