• 专利标题:   Fluorinated graphene electrode material used for lithium battery electrode material, is fluorinated organic solvent by hot graphite intercalation and ultrasonically dispersed.
  • 专利号:   CN103594714-A
  • 发明人:   LI Y, FENG W, FENG Y, SUN Z
  • 专利权人:   UNIV TIANJIN
  • 国际专利分类:   H01M004/58
  • 专利详细信息:   CN103594714-A 19 Feb 2014 H01M-004/58 201430 Pages: 9 Chinese
  • 申请详细信息:   CN103594714-A CN10538274 01 Nov 2013
  • 优先权号:   CN10538274

▎ 摘  要

NOVELTY - A fluorinated graphene electrode material is a fluorinated organic solvent by hot graphite intercalation and then ultrasonically dispersed. The fluorinated graphene electrode material is obtained by dispersing uniformly graphite in the organic solvent, adding the stainless steel reaction kettle, ultrasonically centrifuging obtained solution, filtering the obtained solution by drying filter cake, obtaining graphene material, adding graphite, acetylene black and polyvinylidene fluoride solution, placing the mixed slurry, coating on the aluminum foil and drying. USE - Fluorinated graphene electrode material is used for lithium battery electrode material. ADVANTAGE - The fluorinated graphene electrode material is efficiently prepared with high specific capacitance. DETAILED DESCRIPTION - A fluorinated graphene electrode material is a fluorinated organic solvent by hot graphite intercalation and then ultrasonically dispersed. The fluorinated graphene electrode material is obtained by dispersing uniformly graphite in the organic solvent, adding the stainless steel reaction kettle, sealing to remove lower layer solid at 60-150 degrees C for 6-12 hours, then ultrasonically centrifuging obtained solution, filtering the obtained solution by drying the filter cake, obtaining graphene material, adding graphite, acetylene black and polyvinylidene fluoride solution, uniformly placing the mixed slurry, coating on the aluminum foil and drying. The mass ratio of fluorinated graphite, acetylene black and polyvinylidene fluoride is 75-85:15-5:10, preferably 80-85:10-15:10. The polyvinylidene fluoride is polyvinylidene fluoride dissolved in 10 %mass N-methyl pyrrolidone. An INDEPENDENT CLAIM is included for preparation of fluorinated graphene electrode material.