One type of doping lithium manganese oxide spinel electrode material and method

The present invention discloses a doped lithium manganese oxide spinel electrode material and method, wherein the manganate spinel of formula doped lithium electrode material is LiMn2-x-yMxNyO4, wherein M and N-doped and any two hetero element selected from Al, Mg, Cr, Co in the formula 0 Doped spinel lithium manganate according to the present invention, electrode material, two metal elements M, N as a dopant appearances can significantly improve the structure of pure lithium manganese acid, to further reduce the ratio of trivalent Mn is increased structure stability, inhibition of Jahn-Teller effect; lithium manganate surface while suppressing dissolution of Mn, thereby improving the cycle characteristics and high temperature performance of the lithium manganate, and in the case where the surface doped with the same doping can effect, reduced-doped heteroaryl, thus contributing to reducing the material cost. Application of the spinel-type lithium manganese oxide electrode material of the present invention is characterized in that the larger power applied to power tools and electric vehicles lithium batteries.