• 专利标题:   Preparing graphene-based nitrogen, sulfur-doped electrode material, involves preparing dispersion liquid containing nano-carbon material and heteroatom precursor, adding oxidizing graphene to dispersion, and performing solvent heat treatment.
  • 专利号:   CN115472440-A
  • 发明人:   LIU T, BAI Y
  • 专利权人:   UNIV LANZHOU
  • 国际专利分类:   H01G011/32, H01G011/36, H01G011/50, H01G011/86
  • 专利详细信息:   CN115472440-A 13 Dec 2022 H01G-011/32 202318 Chinese
  • 申请详细信息:   CN115472440-A CN10994493 18 Aug 2022
  • 优先权号:   CN10994493

▎ 摘  要

NOVELTY - Preparing graphene-based nitrogen, sulfur-doped electrode material, comprises preparing a dispersion liquid containing nano-carbon material and heteroatom precursor, adding an oxidizing graphene to the dispersion to obtain a mixed solution, carrying out solvent heat treatment to the mixture, washing the product after the solvent heat treating, drying, and performing thermal shock treatment to obtain an electrode material. USE - The method is useful for preparing graphene-based nitrogen, sulfur-doped electrode material used in electrochemical energy storage technology. ADVANTAGE - The method enables to prepare graphene-based nitrogen, sulfur-doped electrode material, has excellent high-capacity characteristics cyclic stable performance and super-high rate performance, improves the conductivity and electrochemical performance of the carbon material, is simple, convenient, is good for mass production, provides possibility for commercialization. The material has high specific surface area for the charge transfer, shortens the ion transmission distance, and promotes the ion or charge transport, has improved conductivity, and energy storage effect of the material.