• 专利标题:   Preparation of graphene-coated glass micro-powder used as phase change heat absorber, involves dispersing oxidized graphene in pure water, adding glass micro-powder, stirring, adding ammonium bifluoride solution, reacting, reducing oxidized graphene, washing generated gel, and drying.
  • 专利号:   CN115925268-A
  • 发明人:   WANG J, LU Y, GE M, ZHANG F, CUI D
  • 专利权人:   SHANGHAI NAT ENG RES CENT NANOTECHNOLOGY
  • 国际专利分类:   C01B032/19, C01B032/194, C03C012/00, C03C017/22, C03C023/00, C09K005/06
  • 专利详细信息:   CN115925268-A 07 Apr 2023 C03C-012/00 202339 Chinese
  • 申请详细信息:   CN115925268-A CN11663323 23 Dec 2022
  • 优先权号:   CN11663323

▎ 摘  要

NOVELTY - Preparation of graphene-coated glass micro-powder involves (s1) dispersing oxidized graphene in pure water, (s2) adding low-melting-point glass micro-powder, and stirring uniformly, (s3) adding ammonium bifluoride solution, stirring and leaving, and reducing the oxidized graphene to form glass micro-powder of gel, and (s4) washing generated graphene gel using pure water, and drying. USE - Preparation of graphene-coated glass micro-powder used as phase change heat absorber to fill gap of lithium-ion battery. ADVANTAGE - The possibility of human body suction is reduced by coating graphene. The graphene-coated glass micro-powder secondary particles produced by the method will not generate dust. The generated graphene-coated glass micro-powder secondary particles belong to pure inorganic material, and the service life is long.