• 文献标题:   Enhanced electrochemical performance of lithium ion batteries using Sb2S3 nanorods wrapped in graphene nanosheets as anode materials
  • 文献类型:   Article
  • 作  者:   DONG YC, YANG SL, ZHANG ZY, LEE JM, ZAPIEN JA
  • 作者关键词:  
  • 出版物名称:   NANOSCALE
  • ISSN:   2040-3364 EI 2040-3372
  • 通讯作者地址:   City Univ Hong Kong
  • 被引频次:   19
  • DOI:   10.1039/c7nr09441h
  • 出版年:   2018

▎ 摘  要

Antimony sulfide can be used as a promising anode material for lithium ion batteries due to its high theoretical specific capacity derived from sequential conversion and alloying lithium insertion reactions. However, the volume variation during the lithiation/delithiation process leads to capacity fading and cyclic instability. We report a facile, one-pot hydrothermal strategy to prepare Sb2S3 nanorods wrapped in graphene sheets that are promising anode materials for lithium ion batteries. The graphene sheets serve a dual function: as heterogeneous nucleation centers in the formation process of Sb2S3 nanorods, and as a structural buffer to accommodate the volume variation during the cycling process. The resulting composites exhibit excellent electrochemical performance with a highly reversible specific capacity of similar to 910 mA h g(-1), cycling at 100 mA g(-1), as well as good rate capability and cyclic stability derived from their unique structural features.