• 专利标题:   Sulfur-hydroxylated graphene nanocomposite used in cathode for rechargeable lithium-sulfur battery, comprises hydroxylated graphene sheet with surface and amorphous sulfur nanoparticles, and lacks sulfur microparticles.
  • 专利号:   US2016336590-A1
  • 发明人:   MANTHIRAM A, ZU C
  • 专利权人:   UNIV TEXAS SYSTEM
  • 国际专利分类:   H01M010/052, H01M004/133, H01M004/36, H01M004/38, H01M004/587
  • 专利详细信息:   US2016336590-A1 17 Nov 2016 H01M-004/36 201679 Pages: 17 English
  • 申请详细信息:   US2016336590-A1 US222299 28 Jul 2016
  • 优先权号:   US202715, US222299

▎ 摘  要

NOVELTY - A sulfur-hydroxylated graphene nanocomposite comprises at least one hydroxylated graphene sheet with a surface and several amorphous sulfur nanoparticles homogeneously distributed on the surface. The nanocomposite lacks sulfur microparticles. USE - Sulfur-hydroxylated graphene nanocomposite is used in cathode for rechargeable lithium-sulfur battery (all claimed). Uses include but are not limited to camera, cell phone, gaming device, laptop computer, electric automobile, motorcycle, bus, delivery truck, train, boat, etc. ADVANTAGE - The sulfur-hydroxylated graphene nanocomposite can be manufactured by simple process with reduced energy consumption. The safe battery formed using the cathode comprising the sulfur-hydroxylated graphene nanocomposite has excellent cycle characteristics and durability, and high energy density, power density, rate capability, capacity and electrode conductivity. The battery can be manufactured by economical process. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) cathode; and (2) rechargeable lithium-sulfur battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view explaining the synthesis of sulfur-hydroxylated graphene nanocomposite. Preparation of hydroxylated graphene (10) Dissolution of sodium thiosulfate (20) Contacting of sulfur-containing solution (30)