Research progress on improving tap density of LiFePO_4

Lithium iron phosphate has low volumetric energy density due to its low tap density,which limites its practical applications.The research progress on improving the tap density of lithium iron phosphate was introduced in this paper.It is concluded that the preparation of spherical particles is an effective way to improve the tap density,and also a good compromise between a high tap density and good electrochemical property is the key to increase the volumetric energy density.