• 专利标题:   Graphene/oxide based electrode material used for preparing lithium-sulfur battery comprises nano-ferric oxide, graphene porous macromolecule and nano-sulfur.
  • 专利号:   CN106450197-A, WO2018072275-A1, CN106450197-B
  • 发明人:   YANG Q, ZHENG C, NIU S, YOU C, LV W, LI B, KANG F
  • 专利权人:   UNIV TSINGHUA SHENZHEN GRADUATE SCHOOL, UNIV TSINGHUA SHENZHEN GRADUATE SCHOOL
  • 国际专利分类:   H01M010/052, H01M004/36, H01M004/38, H01M004/52, H01M004/583
  • 专利详细信息:   CN106450197-A 22 Feb 2017 H01M-004/36 201721 Pages: 11 Chinese
  • 申请详细信息:   CN106450197-A CN10910362 19 Oct 2016
  • 优先权号:   CN10910362

▎ 摘  要

NOVELTY - Graphene/oxide based electrode material comprises nano-ferric oxide, graphene porous macromolecule and nano-sulfur. The preparation of graphene/oxide based electrode material comprises adding ferric chloride solution to graphene oxide hydrosol, stirring for 1-3 hours, adding ammonia water and adjusting pH to 9-11; dropping hydrazine hydrate solution and stirring for 0.5-3 hours; heating at 130-190 degrees C for 3-10 hours and removing aqueous phase, then solvent; and mixing with nano-sulfur powder and reacting under argon atmosphere at 130-180 degrees C for 9-15 hours. USE - Graphene/oxide based electrode material used for preparing lithium-sulfur battery (claimed). ADVANTAGE - The electrode material has strong chemical bond, limits sulfur dissolution, reduces shuttle effect and improves battery reaction kinetic activity, active substance utilization rate, specific capacity and cycle stability.