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  • 专利标题:   Graphene/polyvinyl alcohol hydrogel for use as electrode in supercapacitor, comprises graphene oxide, where graphene oxide is reduced by using hydrazine h.
  • 专利号:   CN108666149-A
  • 发明人:   ZHANG C, LI Q, LIU T, GUO H, FENG Q, LIU S
  • 专利权人:   UNIV DONGHUA
  • 国际专利分类:   H01G011/30, H01G011/36, H01G011/86
  • 专利详细信息:   CN108666149-A 16 Oct 2018 H01G-011/30 201882 Pages: 9 Chinese
  • 申请详细信息:   CN108666149-A CN10420857 04 May 2018
  • 优先权号:   CN10420857

▎ 摘　　要

NOVELTY - A graphene/polyvinyl alcohol hydrogel comprises graphene oxide, where the graphene oxide is reduced by using hydrazine hydrate, and the graphene/polyvinyl alcohol hydrogel is formed by crosslinking of polyvinyl alcohol and borax. USE - Graphene/polyvinyl alcohol hydrogel for use as electrode in supercapacitor (claimed). ADVANTAGE - The graphene/polyvinyl alcohol hydrogel has high power density and high rate performance and better cycle stability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a method for preparing a graphene/polyvinyl alcohol hydrogel, which involves mixing the graphene oxide solution, polyvinyl alcohol solution, borax and hydrazine hydrate solution to obtain mixture, stirring at 80-100?0C for 1-3 hours, and after returning to room temperature to obtain the finished product (2) a use of graphene/polyvinyl alcohol hydrogel for use as electrode in supercapacitor.