• 专利标题:   Oily graphene dispersion with high dispersion stability, high single-layer rate and high conductivity, comprises graphite and organic solvent, where graphite in oily graphene dispersion liquid is one or more of graphite powder, crystalline flake graphite, artificial graphite, expandable graphite.
  • 专利号:   CN114873584-A
  • 发明人:   ZHANG Q, GUAN F, GONG Y, LI G, LI X
  • 专利权人:   SUZHOU XIZHIYUN TECHNOLOGY CO LTD
  • 国际专利分类:   C01B032/19, C01B032/194
  • 专利详细信息:   CN114873584-A 09 Aug 2022 C01B-032/19 202202 Chinese
  • 申请详细信息:   CN114873584-A CN10494405 08 May 2022
  • 优先权号:   CN10494405

▎ 摘  要

NOVELTY - Oily graphene dispersion with high dispersion stability, high single-layer rate and high conductivity comprises graphite and an organic solvent, where crystalline graphite and the organic solvent form the oily graphene dispersion liquid, and the graphite in the oily graphene dispersion liquid is one or more of graphite powder, crystalline flake graphite, artificial graphite, expandable graphite and expanded graphite. USE - Oily graphene dispersion. ADVANTAGE - The oily graphene dispersion liquid has strong dispersion stability, high single-layer rate and high conductivity. The method is simple, the stripping efficiency is high, the product quality is good, the energy consumption is low, is easy to scale production, and has wide application prospect, can be used as conductive additive in graphene electric heating film, lithium battery, super capacitor, conductive coating, graphene radiating material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing oily graphene dispersion liquid, which involves mixing the organic solvent I and the organic solvent II in ratio of 60:40-95:5 to obtain an organic solvent; premixing graphite and an organic solvent under the action of dispersing equipment; and dispersing the obtained premixed solution by a high-pressure micro-jet homogenizer to obtain the oily graphene dispersion liquid with high single-layer rate.