• 专利标题:   Producing anode material containing silicon-graphene-silver nanowire, used for secondary battery comprises e.g. surface-modifying silicon particles, preparing graphene-silver nanowire core-shell powder, dispersing, and calcining.
  • 专利号:   KR2021118318-A, KR2405612-B1
  • 发明人:   PARKSUNGHEE
  • 专利权人:   UNIV WOOSONG
  • 国际专利分类:   C01B032/198, C01B033/02, H01M010/052, H01M004/04, H01M004/139, H01M004/36, H01M004/38, H01M004/485, H01M004/587, H01M004/62
  • 专利详细信息:   KR2021118318-A 30 Sep 2021 H01M-004/36 202187 Pages: 20
  • 申请详细信息:   KR2021118318-A KR034414 20 Mar 2020
  • 优先权号:   KR034414

▎ 摘  要

NOVELTY - Producing anode material containing silicon-graphene-silver nanowire, comprises (a) surface-modifying the silicon particles with an alkoxysilane-based surface modifier to obtain silicon particles surface-modified with an alkoxysilane-based surface modifier; (b) preparing a graphene-silver nanowire core-shell powder by putting silicon particles, graphene oxide, and silver nanowires surface-modified with the alkoxysilane-based surface modifier in a solvent, and adding stearic acid is to disperse ultrasonically, freeze-drying, pulverizing and coated with graphene and silver nanowires on the silicon surface; (c) ultrasonically dispersing the silicon-graphene-silver nanowire core-shell powder and lithium titanate in a solvent, freeze-drying and pulverizing to obtain a silicon-graphene-silver nanowire core-shell composite material powder; and (d) calcining the silicon-graphene-silver nanowire core-shell composite material powder, cooling it, and mixing it with a fluorine-based polymer. USE - The method is useful in producing anode material containing silicon-graphene-silver nanowire for secondary battery (claimed). ADVANTAGE - The method which produces anode material containing silicon-graphene-silver nanowire has higher charge-discharge capacity than a anode electrode material having a conventional silicon-graphene-silver nanowire core-shell structure, has excellent volume expansion rate high stability, electrical conductivity, and lowers manufacturing cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for anode material containing silicon-graphene-silver nanowire produced by the above method. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating a method for producing anode material containing silicon-graphene-silver nanowire (Drawing includes non-English language text).