| abstract |
The invention provides a method for preparing a nickel-manganese binary precursor with high electrochemical performance, which belongs to the technical field of battery materials. In this method, in the process of wet synthesis of binary precursors, in the co-precipitation reaction, a template agent and a structure control agent are added; then the slurry is filtered, washed, dried, pre-calcined at high temperature, and calcined with mixed lithium to obtain the binary precursor. product. The invention constructs the precursor surface structure skeleton in the precursor wet synthesis stage, solves the problem of reduced cycle performance caused by the collapse of the current cathode material structure, realizes the cobalt-free cathode material, greatly reduces its manufacturing cost, and has great commercial value . |