• 专利标题:   Method for preparing graphene/titanium oxide composite material utilized in lithium-sulfur battery, involves mixing titanium oxide and graphene, dissolving mixture in organic solvent, stirring and ultrasonically dispersing stirred mixture.
  • 专利号:   CN104600267-A, CN104600267-B
  • 发明人:   HUANG S, YANG Z, WANG L, NIE H, XIAO Z
  • 专利权人:   UNIV WENZHOU, UNIV WENZHOU
  • 国际专利分类:   H01M004/131, H01M004/1391, H01M004/36
  • 专利详细信息:   CN104600267-A 06 May 2015 H01M-004/36 201556 Pages: 7 Chinese
  • 申请详细信息:   CN104600267-A CN10015521 13 Jan 2015
  • 优先权号:   CN10015521

▎ 摘  要

NOVELTY - A graphene/titanium oxide composite material preparing method involves mixing titanium oxide and graphene in a weight ratio of 1-10:100, dissolving the mixture in 0.1-40 mass% organic solvent, stirring the mixture and ultrasonically dispersing the stirred mixture to obtain a slurry, where the titanium oxide has particle size of 1-100 nm. USE - Method for preparing a graphene/titanium oxide composite material that is utilized in a lithium-sulfur battery. ADVANTAGE - The method enables preparing the graphene/titanium oxide composite material in a simple and economical manner, effectively suppressing shuttle effect in the lithium-sulfur battery and improving capacity and cycle performance of the battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for applying a graphene/titanium oxide composite material, which involves coating a surface of lithium-sulfur battery cathode material with uniform thickness, after drying slices of rolled graphene, where weight ratio of titanium oxide composite material is 5-50%.