1results about How to "Effective doping" patented technology

The application relates to a kind of surface nano fluorinated scandium lithium layer modification and near surface anion and cation co-doped nickel cobalt manganese ternary positive electrode material and its preparation method, belong to chemical energy storage battery technical field.According to the molar ratio of Li, Sc and F element 3:1:6, lithium salt, scandium salt and fluorine salt are weighed respectively, then ultrasonic is added in ethanol aqueous solution and is fully stirred to obtain mixed salt solution;Nickel cobalt manganese ternary positive electrode material is added to the mixed salt solution, heated and stirred until the suspension is dry, and then dried to obtain a powder;The powder is calcined in oxygen atmosphere to obtain a kind of surface nano fluorinated scandium lithium layer modification and near surface anion and cation co-doped modified nickel cobalt manganese ternary positive electrode material.The synergistic effect of Li3ScF6 surface coating and near surface lattice Sc, F co-doping improves the electrochemical performance and thermal stability of nickel cobalt manganese ternary positive electrode material.