The invention relates to a
nickel-based multiple components
cathode material and its preparation method, a
chemical formula of the
nickel-based multiple components
cathode material is LiaNixCoyM1-x-yO2 / (zLi3PO4(1-z)M')b; M in the
chemical formula is one or more than two elements selected from Mn, Al, Zr, Ba, Sr and B, M' is one or more than two oxidate selected from Al, Zr, Ti, Mg and La, wherein 0.8<=a<=1.2, 0.7 <x<1, 0<y<1, x+y<1, 0<z<1, 0<b<0.05. The invention also provides a preparation method of the
nickel-based multiple components
cathode material. The nickel-based multiple components
cathode material is characterized in that
lithium phosphate and
metal oxide are used for carrying out compound
coating treatment on the surface, the
interfacial resistance can be minimized, the
conductivity performance of the surface
lithium ion can be increased, the nickel-based multiple components
cathode material can be protected, the generation of phase transformation of the nickel-based multiple components
cathode material can be inhibited, simultaneously, the heating can be inhibited, the
thermal stability can be enhanced, the capacity of the
lithium ion secondary
cell prepared by the product is high, and the security is good.