• 文献标题:   Au modified single vacancy graphene as anchoring material for lithium-sulfur batteries
  • 文献类型:   Article
  • 作  者:   SONG ZY, GUO CS, ZHAO Y
  • 作者关键词:   lithiumsulfur batterie, shuttle effect, metals modified graphene anchoring material, density functional theory
  • 出版物名称:   CHEMICAL PHYSICS LETTERS
  • ISSN:   0009-2614 EI 1873-4448
  • 通讯作者地址:  
  • 被引频次:   2
  • DOI:   10.1016/j.cplett.2020.138101
  • 出版年:   2021

▎ 摘  要

Interactions between transition metals (Cr, Mn, Fe, Co, Pt and Au) modified single vacancy graphene and lithium polysulfides have been studied based on the first-principle calculations. By studying the binding energies, adsorption structures, charge transfer and electronic properties, we find that these anchoring systems bind strongly with the lithium polysulfides and hence able to effectively reduce the shuttle effect. Especially the Au modified single vacancy graphene, with the strongest binding energy while retains the highly soluble lithium polysulfides intact, keeping the metallic state during the whole charge process, could be promising for applications in lithium-sulfur batteries.