• 专利标题:   Manufacturing electrostatic self-assembled silicon/reduced graphene oxide (rGO)/carbon nanofibers composite as anode materials for lithium-ion battery, involves obtaining silicon (Si)-(3-aminopropyl)triethoxysilane (APTES) solution by adding predetermined silicon nanoparticles to piranha solution.
  • 专利号:   US2023095550-A1, KR2023044798-A
  • 发明人:   CONG R, LEE C S, LEECHANGSUP, FEMALE T
  • 专利权人:   TOBE LINK CO LTD, TOBE LINK CO LTD
  • 国际专利分类:   C01B032/18, C23C016/26, C23C016/56, H01M010/0525, H01M010/0568, H01M010/0569, H01M004/36, H01M004/38, H01M004/587, H01M004/62, B05D001/18, C01B032/194, C01B033/02, D01F009/12, H01M010/052
  • 专利详细信息:   US2023095550-A1 30 Mar 2023 H01M-004/36 202330 English
  • 申请详细信息:   US2023095550-A1 US949224 21 Sep 2022
  • 优先权号:   KR127358

▎ 摘  要

NOVELTY - Manufacturing electrostatic self-assembled silicon/reduced graphene oxide (rGO)/carbon nanofibers composite, involves (a) obtaining a silicon (Si)-(3-aminopropyl)triethoxysilane (APTES) solution by adding predetermined Si nanoparticles to the piranha solution, and stirring, filtering, washing and drying, and then, dispersing the dried Si nanoparticles in deionized water, by adding APTES, and then stirring, (b) obtaining a silicon/nitrogen-doped graphene oxide (GO) dispersion by mixing a mixture with the addition of urea (CH4N2O) to GO solution and the prepared Si-PTES in step (a) in an ethanol aqueous solution, (c) obtaining a Si-N-doped GO/CNF composite by adding a predetermined CNF to the prepared silicon/nitrogen-doped GO dispersion and stirring it, and (d) obtaining a thermally reduced silicon/nitrogen-doped rGO/CNF composite through a heat treatment process to the prepared silicon/nitrogen-doped GO/CNF composite. USE - Method for manufacturing electrostatic self-assembled silicon/reduced graphene oxide (rGO)/carbon nanofibers composite as anode materials for lithium-ion battery (claimed). ADVANTAGE - The method provides higher capacity and longer life batteries for higher performance lithium-ion battery (LIB), which has excellent electronic conductivity, good physical and chemical stability, high thermal stability, excellent mechanical flexibility, and high theoretical surface area, and excellent performance, as well as other unique structures. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing of lithium-ion batteries, which involves: obtaining a Si/APTES solution by adding predetermined Si nanoparticles to the piranha solution, and stirring, filtering, washing and drying, and then, dispersing the dried Si nanoparticles in deionized water, by adding APTES, and then stirring; obtaining a Si/N-doped GO dispersion by mixing a mixture with the addition of urea (CH4N2O) to the GO solution and the prepared Si/APTES in an ethanol aqueous solution; obtaining a Si/N-doped GO/CNF composite by adding a predetermined CNF to Si/N-doped GO dispersion and stirring it; obtaining a thermally reduced Si/N-doped rGO/CNF composite through a heat treatment process to the prepared Si/N-doped GO/CNF composite; and preparing the lithium-ion batteries using Si/N-doped rGO/CNF composite as an anode material for the lithium-ion batteries.