• 文献标题:   Synthesis of carbon-coated VBO3 nanoparticles on graphene sheets as anode material for lithium-ion batteries by freeze-drying method
  • 文献类型:   Article
  • 作  者:   CHENG B, ZHUO HT, LUO LL, ZHU JP, CHEN SJ, ZENG XR
  • 作者关键词:   lithiumion batterie, vbo3, graphene, amorphous carbon, freezedrying method
  • 出版物名称:   JOURNAL OF ALLOYS COMPOUNDS
  • ISSN:   0925-8388 EI 1873-4669
  • 通讯作者地址:   Shenzhen Univ
  • 被引频次:   2
  • DOI:   10.1016/j.jallcom.2018.11.322
  • 出版年:   2019

▎ 摘  要

Carbon-coated VBO3 on graphene sheets (VBO3/C@G) composite synthesized by freeze-drying method is presented as anode material for lithium-ion batteries. In the final material, VBO3 nanoparticles, which are uniformly coated by amorphous carbon, are either adhered to the surface of graphene sheets or covered by graphene sheets. The amorphous carbon and graphene not only prevent the growth of VBO3 nanoparticles but also provide an excellent conductive 3D network, which is beneficial for the battery performance. The material delivers an initial charge capacity of 787 mAh g(-1) at 0.1 C and maintains 697 mAh g(-1) after 100 cycles at 0.1 C. It also exhibits an excellent rate performance with a charge capacity of 609 mAh g(-1) at 10 C. (C) 2018 Elsevier B.V. All rights reserved.