▎ 摘　　要

NOVELTY - Lithium iron borate modified lithium manganate material and its preparation method, involves mechanically mixing lithium source, manganese source, ferrous salt, boron oxide and carbon source, placing the uniformly mixed powder in an inert atmosphere and calcining at a high temperature to obtain a composite material of lithium iron borate and lithium manganate. USE - As lithium iron borate modified lithium manganate material. ADVANTAGE - The particle size of the composite material prepared by the method is consistent. The preparation method is simple and easy to control, and is easy for industrialized large-scale production.