• 专利标题:   Preparation of graphene-based hollow fiber used as electrode in linear capacitor, involves adding reducing agent to graphene oxide aqueous solution, mixing, molding obtained precursor solution in injection tubular mold, and drying.
  • 专利号:   CN105088416-A, CN105088416-B
  • 发明人:   CHENG J, OTHER I A N T, JU G
  • 专利权人:   INST CHEM MATERIAL CHINA ACAD ENG PHYSIC, INST CHEM MATERIAL CHINA ACAD ENG PHYSIC
  • 国际专利分类:   C01B031/04, D01F011/12, D01F009/08, C01B032/184
  • 专利详细信息:   CN105088416-A 25 Nov 2015 D01F-009/08 201630 Pages: 11 Chinese
  • 申请详细信息:   CN105088416-A CN10402015 10 Jul 2015
  • 优先权号:   CN10402015

▎ 摘  要

NOVELTY - Preparation of graphene-based hollow fiber involves chemically oxidizing expanded graphite powder, ultrasonically dispersing obtained graphite oxide in deionized water, adding a reducing agent to obtained 5-20 mg/mL aqueous solution of graphene oxide, mixing, adding obtained precursor solution to an injection tubular mold, sealing the mold, molding at 50-100 degrees C for 2-6 hours, opening the mold and drying. USE - Preparation of graphene-based hollow fiber used as electrode in linear capacitor (claimed). ADVANTAGE - The method enables economical preparation of graphene-based hollow fiber with high charge storage capability, and excellent electroconductivity and flexibility, using nontoxic graphene oxide aqueous solution as a main raw material, by safe, simple and environmentally-friendly process. The linear capacitor containing the graphene-based hollow fiber as an electrode, has high capacitance and energy density.