▎ 摘　　要

NOVELTY - Preparing material for positive electrode comprises obtaining the first mixture, the first mixture comprises manganese source, Me source and iodine source, where Me is iron, copper, nickel, zinc, cobalt, magnesium, aluminum, chromium, titanium, zirconium, lanthanum, tellurium, strontium, carrying out solid phase sintering the first mixture, obtaining the doped iodine precursor (I), obtaining a second mixture, the second mixture comprises lithium source or sodium source and the precursor, the second mixture is subjected to solid phase, sintering to obtain the positive electrode material (II). USE - Method for preparing material for positive electrode, used in battery, ADVANTAGE - The method has high energy density, small self-discharge and long cycle life characteristics. DETAILED DESCRIPTION - Preparing material for positive electrode comprises obtaining the first mixture, the first mixture comprises manganese source, Me source and iodine source, where Me is iron, copper, nickel, zinc, cobalt, magnesium, aluminum, chromium, titanium, zirconium, lanthanum, tellurium, strontium, carrying out solid phase sintering the first mixture, obtaining the doped iodine precursor (((MnxMe1-x)yOa-nI2n) (I) where x is less than 0, n is less than 1, y is 2-3, a is 3-4, obtaining a second mixture, the second mixture comprises lithium source or sodium source and the precursor, the second mixture is subjected to solid phase, sintering to obtain the positive electrode material (MmMnxMe1-xO2-nI2n) (II), where M is lithium or sodium, m is 0<1.5. INDEPENDENT CLAIMS are included for: (1) a material for positive electrode; and (2) a battery which comprises the positive electrode material.