| abstract |
The present invention relates to a kind of lithium metal oxide particle of the mixture coating of element of use core material and one or more metal oxides.Especially, the present invention relates to a kind of lithium metal oxide powder for being used as cathode material in rechargeable battery, it is made up of core material and superficial layer, core has the layered crystal structure being made up of element Li, metal M and oxygen, wherein Li contents are controlled in stoichiometry, and wherein metal M has chemical formula M=Co 1‑ a M’ a , 0≤a≤0.05, wherein M ' are by one or more metals in Al, Ga and B group constituted；And the mixture of element of the superficial layer by core material and the inorganic oxide based on N is constituted, one or more metals in the group that wherein N is made up of Mg, Ti, Fe, Cu, Ca, Ba, Y, Sn, Sb, Na, Zn, Zr and Si. |