• 专利标题:   Preparing molybdenum-based organic metal frame composite cathode material comprises stirring molybdate, copper salt and L-glutamic acid in deionized water to form molybdenum salt solution, adding graphene oxide, reacting with anhydrous ethanol dissolved thiophene dicarboxylic acid and centrifuging.
  • 专利号:   CN115172733-A
  • 发明人:   CHENG X, CHEN C, WANG Y
  • 专利权人:   UNIV WUHAN POLYTECHNIC
  • 国际专利分类:   H01M004/36, H01M004/48, H01M004/60
  • 专利详细信息:   CN115172733-A 11 Oct 2022 H01M-004/36 202299 Chinese
  • 申请详细信息:   CN115172733-A CN11068786 02 Sep 2022
  • 优先权号:   CN11068786

▎ 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.