LITHIUM-RICH MANGANESE-BASED SOLID SOLUTION/GRAPHEME COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR

摘要

The present invention provides a lithium-rich manganese-based solid solution/graphene composite material and a preparation method therefor, and is applicable to the technical field of energy materials. The general structural formula of said lithium-rich manganese-based solid solution is xLi2MnO3·(1-x)LiMO2, wherein M is anyone of Ni, Co, Mn, Cr, Ni-Co, Ni-Mn, Ni-Co-Mn, Fe and Ru, and 0x1; it is characterized in that said lithium-rich manganese-based solid solution is dispersed between the layers of a layered graphene in the form of particles. The lithium-rich manganese-based solid solution/graphene composite material of the present invention can be used as an anode material for lithium ion batteries, and the electrical conductivity of the lithium-rich manganese-based solid solution can be effectively improved. The preparation method has the characteristics of simple technology, low cost and being suitable for large-scale production.