• 专利标题:   Preparation of lithium battery electrode material based on graphene modification involves dispersing spherical graphite and graphene oxide in solvent, heating, carbonizing obtained mixture, and mixing obtained graphene-modified material with e.g. nano conductive agent.
  • 专利号:   CN115692679-A
  • 发明人:   LIU J, YUAN Q, ZHANG X, LIU S, WEN Z
  • 专利权人:   HUNAN JINYANG GRAPHENE CARBON NEW MATERI
  • 国际专利分类:   C01B032/21, H01M010/0525, H01M004/36, H01M004/587, H01M004/62
  • 专利详细信息:   CN115692679-A 03 Feb 2023 H01M-004/36 202320 Chinese
  • 申请详细信息:   CN115692679-A CN11515318 30 Nov 2022
  • 优先权号:   CN11515318

▎ 摘  要

NOVELTY - Preparation of lithium battery electrode material based on graphene modification involves (s1) ultrasonically dispersing spherical graphite and graphene oxide in solvent, and heating until the solvent is volatilized to obtain solid mixture, (s2) carbonizing obtained mixture to obtain graphene-modified material, and (s3) mixing obtained material with nano conductive agent, binder and dispersant. USE - Preparation of lithium battery electrode material based on graphene modification. ADVANTAGE - The method uses evaporating and volatilizing to prepare modified graphene material, and the electrode material prepared by mixing with the nano conductive agent exhibits high coulombic efficiency and stability.