▎ 摘 要
NOVELTY - Preparing molybdenum-based organic metal frame composite negative electrode material comprises (i) using improved Hummers method to oxidize the graphite to obtain graphene oxide, dispersing graphene oxide ultrasonically in the deionized water and dispersing the product obtained by centrifuging at 9000 revolutions/minute to obtain the graphene oxide dispersion liquid; (ii) adding the molybdate, copper salt and L-glutamic acid orderly into the deionized water, and stirring to dissolve completely to obtain solution A; (iii) adding graphene oxide dispersion liquid of different qualities into the solution A and stirring continuously to form solution B; (iv) adding the thiophene dicarboxylic acid into anhydrous ethanol solvent and stirring uniformly to form solution C; and (v) mixing solution B and C, stirring uniformly to obtain black precipitate, centrifugally separating, using water and absolute ethyl alcohol alternately to wash the precipitate, collecting precipitate and vacuum drying. USE - The method is useful for preparing molybdenum-based organic metal frame composite cathode material. ADVANTAGE - The method: prepares molybdenum-based metal framework cathode material with good cycle life and high discharge specific capacity; is simple and easy for large-scale production.