• 专利标题:   Graphene-like carbon-coated silicon/carbon/graphene composite material comprises graphene-like carbon coating layer, silicon, carbon, and graphene.
  • 专利号:   CN112382740-A
  • 发明人:   ZHU S, MA Y, ZHAN S, LI H, CAI H
  • 专利权人:   YINLONG NEW ENERGY CO LTD
  • 国际专利分类:   B82Y030/00, B82Y040/00, C01B032/05, C01B032/194, C01B033/021, H01M010/0525, H01M004/36, H01M004/38, H01M004/587, H01M004/62
  • 专利详细信息:   CN112382740-A 19 Feb 2021 H01M-004/36 202130 Pages: 13 Chinese
  • 申请详细信息:   CN112382740-A CN11066232 30 Sep 2020
  • 优先权号:   CN11066232

▎ 摘  要

NOVELTY - Graphene-like carbon-coated silicon/carbon/graphene composite material comprises 1-10% graphene-like carbon coating layer, 1-15% silicon, 80-95% carbon, and 0.1-5% graphene. USE - Graphene-like carbon-coated silicon/carbon/graphene composite material. ADVANTAGE - The graphene-like carbon-coated silicon/carbon/graphene composite material can greatly reduce costs and achieve large-scale mass production, can effectively alleviate volume effect of nano-silicon, avoid nano-silicon and electrolyte direct contact of the Si/C composite material, and improves cycle stability of the Si/C composite material, and has good conductivity, high specific capacity, wide raw material sources, and is economical and environmentally friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene-like carbon-coated silicon/carbon/graphene composite material, which involves: (A) mixing nano silicon solution, the phenolic resin solution, the graphene slurry, and the graphite to obtain a mixture; (B) drying the mixture to obtain dried composite material powder; (C) mixing the dried composite material powder, the carbon source and the foaming agent in an inert atmosphere for performing heating treatment to obtain a carbon-coated composite material; and (D) calcining the carbon-coated composite material to obtain the graphene-like carbon-coated silicon/carbon/graphene composite material.