• 专利标题:   Preparing lithium-sulfur battery anode material comprises dropwise adding graphene on the natural fiber, and calcining to obtain composite carbon fiber-1, mixing with alkaline substance in solution, and heating.
  • 专利号:   CN107946582-A
  • 发明人:   SHEN X, YAN C, ZHAO C, SONG H, YANG J, HU D
  • 专利权人:   JIANGSU HIGHSTAR ELECTRIC POWER SOURCE
  • 国际专利分类:   H01M010/0525, H01M004/13, H01M004/133, H01M004/36, H01M004/38, H01M004/583
  • 专利详细信息:   CN107946582-A 20 Apr 2018 H01M-004/36 201831 Pages: 12 Chinese
  • 申请详细信息:   CN107946582-A CN11246638 01 Dec 2017
  • 优先权号:   CN11246638

▎ 摘  要

NOVELTY - Preparing lithium-sulfur battery anode material comprises (1) dropwise adding graphene on the natural fiber, and calcining at 600-1000 degrees C for 8-12 hours to obtain composite carbon fiber-1; (2) mixing the composite carbon fiber-1 with alkaline substance in solution, heating the system to 600-750 degrees C for 30-90 minutes under inert gas atmosphere to obtain composite carbon fiber-2; (3) stirring the composite carbon fiber-2, sulfur source and dispersant in acidic solution for 12-48 hours, and filtering; and (4) soaking the filter product in organic solvent. USE - The lithium-sulfur battery anode material is useful for lithium battery (claimed). ADVANTAGE - The lithium-sulfur battery anode material: has large specific surface area and high porosity; reduces loss of active substance, and improves the cycle performance of electrode. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) lithium-sulfur battery anode material prepared by above mentioned method; (2) lithium-sulfur battery anode comprises anode active material, conductive agent, and adhesive, the active material is lithium-sulfur battery anode material mentioned above; and (3) lithium battery comprises anode, spacing mold, electrolyte and cathode, where anode is anode material of lithium battery mentioned above.