• 专利标题:   Integrated, self-supporting silicon oxide/carbon nano tubes/graphene composite film used as lithium-ion battery cathode comprises silicon oxide, single-sheet graphene and carbon nano tubes.
  • 专利号:   CN113690428-A
  • 发明人:   TIAN X, ZHU Q, LIU Z, XU B
  • 专利权人:   UNIV BEIJING CHEM TECHNOLOGY
  • 国际专利分类:   C01B032/168, C01B032/19, C01B032/194, C01B033/12, H01M010/0525, H01M004/131, H01M004/1391, H01M004/48, H01M004/62
  • 专利详细信息:   CN113690428-A 23 Nov 2021 H01M-004/48 202234 Chinese
  • 申请详细信息:   CN113690428-A CN10974277 24 Aug 2021
  • 优先权号:   CN10974277

▎ 摘  要

NOVELTY - Integrated, self-supporting silicon oxide/carbon nanotubes/graphene composite film comprises silicon oxide, single-sheet graphene and carbon nano tubes, where the particle size of silicon oxide is 1-100 microm, the sheet size of graphene is 10-200 microm and the thickness of the composite film is 10-100 microm. The mass ratio of silicon oxides and single sheets of graphene in the composite membrane is 1-20:1, and the carbon nanometer tube is 0.01-0.1 of the total mass. The composite membrane can be directly used as a battery cathode. USE - The integrated, self-supporting silicon oxide/carbon nanotubes/graphene composite film is useful for lithium-ion battery in electronic product and electric automobile. ADVANTAGE - The method: can simply and quickly prepare integrated self-supporting silicon oxide/carbon nano tube/graphene composite film with excellent multiplying power performance and cycle performance, and has high specific capacity and cycle stability as the cathode of the lithium-ion battery. The method: has low cost, and fast batch production of large area of self-supporting electrode, and can be directly used as electrode without current collector and adhesive. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing an integrated, self-supporting silicon oxide/carbon nanotubes/graphene composite film.