• 专利标题:   Preparing cobalt sulfide-doped-carbon nanotubes-doped-graphene composite material useful in lithium-sulfur battery comprises dispersing zeolitic imidazolate framework-67 powder and thioacetamide in graphene oxide solution, adding pyrrole, mixing, heating, cooling and freeze-drying.
  • 专利号:   CN114162876-A, CN114162876-B
  • 发明人:   LIU Y, SUN L
  • 专利权人:   YANCHENG INST TECHNOLOGY TRANSFER CENT, YANCHENG INST TECHNOLOGY, YANCHENG TECHNOLOGY INST TECHNOLOGY TRA
  • 国际专利分类:   B82Y030/00, B82Y040/00, C01B032/16, C01B032/184, C01G051/00, H01M010/052, H01M004/36, H01M004/38, H01M004/587, H01M004/62
  • 专利详细信息:   CN114162876-A 11 Mar 2022 C01G-051/00 202274 Chinese
  • 申请详细信息:   CN114162876-A CN11505061 10 Dec 2021
  • 优先权号:   CN11505061

▎ 摘  要

NOVELTY - Preparing cobalt sulfide-doped-carbon nanotubes-doped-graphene composite material comprises (a) preparing graphene oxide aqueous solution, (b) dispersing zeolitic imidazolate framework-67 (ZIF-67) powder and thioacetamide in the graphene oxide aqueous solution, stirring, mixing to obtain a first mixed solution, (c) adding pyrrole into the first mixed solution, stirring, mixing evenly to obtain a second mixed solution and (d) transferring the second mixed solution to a polytetrafluoroethylene-lined reaction kettle, heating, cooling, freeze-drying process and performing heat treatment in argon atmosphere to obtain the sample cobalt sulfide -doped-carbon nanotubes-doped-graphene USE - The composite material is useful in lithium-sulfur battery (claimed). ADVANTAGE - The method is simple, pollution-free; ensures composite material with good flexibility and exhibits high capacity performance, excellent rate performance and long cycle performance.