Effect of Particle Size of Li3PO4 on LiFePO4 Cathode Material Properties Prepared by Hydrothermal Method
Yuan Ma, Tao Li, Fei Jiang, Yuqi Jiang, Feilong Gao, Lingyun Liu, Yaodong Wu, Ying Meng, Xiaohang Ma, Zhenfa Zi
Abstract
LiFePO 4 is one of the most widely used cathode materials for lithium ion batteries. LiFePO 4 prepared by hydrothermal method has the advantages of good consistency, small particle size, controllable morphology and accurate chemical ratio. In this paper, LiFePO 4 was prepared by hydrothermal method, and the effect of particle size of Li 3 PO 4 as reaction raw material was studied. It is found that the particle size of Li 3 PO 4 could affect the morphology and properties of LiFePO 4 . Among the samples, the porous spherical structure of LiFePO 4 particles can be obtained by using 2 μm Li 3 PO 4 , which is assembled from nanoparticles. This LiFePO 4 has the best comprehensive performance and high vibration density.