• 文献标题:   Lithiophilic current collector based on nitrogen doped carbon nanotubes and three-dimensional graphene for long-life lithium metal batteries
  • 文献类型:   Article
  • 作  者:   FANG YB, HSIEH YY, KHOSRAVIFAR M, JOHNSON K, ADUSEI PK, KANAKARAJ SN, PREISLER S, ZHANG GQ, SHANOV V
  • 作者关键词:   lithiophilic current collector, lithium metal anode, lithiumsulfur battery, nitrogendoped cnt, 3d graphene
  • 出版物名称:   MATERIALS SCIENCE ENGINEERING BADVANCED FUNCTIONAL SOLIDSTATE MATERIALS
  • ISSN:   0921-5107 EI 1873-4944
  • 通讯作者地址:  
  • 被引频次:   14
  • DOI:   10.1016/j.mseb.2021.115067 EA FEB 2021
  • 出版年:   2021

▎ 摘  要

Lithium metal as an attractive anode material has been widely used in advanced energy storage devices. However, drawbacks such as growth of lithium dendrites, significant volume changes during the cycling process, causing safety hazards and limited span-life, have impeded the commercial application of lithium metal anode. Here, we present a new composite structure, consisting of porous three-dimensional graphene (3DG) decorated with nitrogen-doped carbon nanotubes (NCNT). The created NCNT-3DG carbon scaffold is resilient towards significant volumetric change during cycling, while the NCNTs serve as lithiophilic sites for uniform lithium nucleation which enables uniform lithium deposition. This novel hybrid endows the lithium anode with a long-term stability reaching up to 1200 cycles at high current density of 10 mA cm(-2). This significantly improved the performance of the created lithium-sulfur full cells. The demonstrated performance of the NCNT-3DG structure provides new insights for the designing and fabrication of metallic lithium anodes.