• 专利标题:   Preparation of cathode material for graphene-based lithium ion battery, involves adding carbon nanotubes to graphene-based dispersion, adding precursor of non-carbon material, stirring, hydrothermally reacting and soaking in deionized water.
  • 专利号:   CN108365219-A
  • 发明人:   YANG Q, XIAO J, HAN J, CHEN F, ZHANG C, TAO Y
  • 专利权人:   UNIV TIANJIN
  • 国际专利分类:   C01B032/158, C01B032/182, H01M010/0525, H01M004/36, H01M004/583, H01M004/62
  • 专利详细信息:   CN108365219-A 03 Aug 2018 H01M-004/583 201861 Pages: 10 Chinese
  • 申请详细信息:   CN108365219-A CN10098486 31 Jan 2018
  • 优先权号:   CN10098486

▎ 摘  要

NOVELTY - The preparation method of cathode material involves (1) adding carbon nanotubes to the graphene-based dispersion, adding precursor of non-carbon material, and fully stirring to obtain mixed dispersion, (2) adding the mixed dispersion to a hydrothermal reactor, and hydrothermally reacting to obtain graphene-carbon nanotube-non-carbon material hydrogel, and (3) fully soaking the obtained hydrogel in deionized water, and removing impurities for moisture removal, where the cathode material includes graphene having a three-dimensional porous structure and one-dimensional linear carbon nanotubes, and a non-carbon material that is supported on graphene and carbon nanotubes. USE - Preparation method of cathode material for graphene-based lithium ion battery. ADVANTAGE - The method enables preparation of cathode material with fast ion transmission path, excellent electrical contact and satisfied volume expansion of non-carbon active materials.