• 专利标题:   Preparing graphene/copper composite powder for composite material for e.g. heat sink material, by mixing acidic solution containing copper ions and aqueous graphene solution or mixing acidic solution containing copper ions and aqueous graphene oxide solution, electro-depositing, and collecting.
  • 专利号:   CN113293424-A, CN113293424-B
  • 发明人:   WANG L, YU J, ZONG Y
  • 专利权人:   HARBIN INST TECHNOLOGY
  • 国际专利分类:   C01B032/184, C22C001/05, C22C009/00, C25D015/00, C25D003/38
  • 专利详细信息:   CN113293424-A 24 Aug 2021 C25D-015/00 202183 Pages: 15 Chinese
  • 申请详细信息:   CN113293424-A CN10550494 20 May 2021
  • 优先权号:   CN10550494

▎ 摘  要

NOVELTY - Method for preparing graphene/copper composite powder involves mixing acidic solution containing copper ions and aqueous graphene solution to obtain a mixed solution, or mixing acidic solution containing copper ions and aqueous graphene oxide solution to obtain a mixed solution, electro-depositing the mixed solution, and collecting the graphene/copper composite powder during the electro-deposition process. USE - Method useful for preparing graphene/copper composite powder for preparing graphene/copper composite material for heat sink material, wire or heat dissipation device application (all claimed). ADVANTAGE - The method repairs oxygen-containing functional groups and defects in the graphene, and improves the conductivity of the prepared graphene/copper composite powder. The composite material has excellent mechanical, electrical, thermal conductivity and high-temperature stability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a graphene/copper composite powder prepared by the above method; (2) a method for preparing a graphene/copper composite material, involving reducing the graphene/copper composite powder to obtain a reduced powder, and subjecting the reduced powder to a molding process to obtain a composite material; and (3) a graphene/copper composite material prepared by the above method.