| abstract |
The invention provides a lithium iron phosphate composite material and a preparation method thereof. Before secondary sintering, an oxide conductive connection such as nano-cerium oxide is introduced to connect a skeleton and a carbon coating liquid, and after the secondary sintering, the lithium iron phosphate particles are There is a complete carbon-coated conductive network on the surface and inside, forming a double-layer carbon-coated lithium iron phosphate material with high electrical conductivity, good crystallinity, high tap density, good processing performance, high discharge capacity, and excellent rate performance. . |