• 专利标题:   Anode material for lithium-sulfur battery, is formed by sulfur, conductive additive and graphene, where surface of conductive additive is coated with sulfur granule and graphene is formed by conductive additive and sulfur granule.
  • 专利号:   CN103682280-A, CN103682280-B
  • 发明人:   JIN K, LIU Z, ZHOU X
  • 专利权人:   CHINESE ACAD SCI NINGBO INST MATERIAL TE, NINGBO INST MATERIALS TECHNOLOGY ENG C
  • 国际专利分类:   H01M010/052, H01M004/13, H01M004/38, H01M004/62
  • 专利详细信息:   CN103682280-A 26 Mar 2014 H01M-004/38 201433 Pages: 11 Chinese
  • 申请详细信息:   CN103682280-A CN10329912 07 Sep 2012
  • 优先权号:   CN10329912

▎ 摘  要

NOVELTY - The material is formed by sulfur, conductive additive and graphene. Sulfur granule is coated on a surface of the conductive additive. The graphene is formed by the conductive additive and the sulfur granule. Grain diameter of the sulfur granule is about 1 um to 50 um. The conductive additive is selected from one of multi-carbon black, carbon fiber or carbon nano-tube. Mass ratio of the graphene and the conductive additive is about 0.1 to 1:1:0.1 to 1. USE - Anode material for a lithium-sulfur battery (claimed). ADVANTAGE - The material has prolonged service life, and effectively realizes rear hot processing operation and spray drying process to obtain complex conductive additive/sulfur graphene oxide material. The material is easy to prepare, and has high conductivity. The material reduces graphene oxide by reducing agent, increases conductivity of graphene, improves cycle property of a lithium-sulfur battery and dissolves inhibiting polysulfide by the graphene. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a lithium-sulfur battery anode material preparing method. DESCRIPTION OF DRAWING(S) - The drawing shows a photographic view of an anode material.