• 文献标题:   Pseudocapacitance behavior on Fe3O4-pillared SiOx microsphere wrapped by graphene as high performance anodes for lithium-ion batteries
  • 文献类型:   Article
  • 作  者:   LIAO C, WU SP
  • 作者关键词:   fewlayered graphene, fe3o4, siox microsphere, lithiumion batterie
  • 出版物名称:   CHEMICAL ENGINEERING JOURNAL
  • ISSN:   1385-8947 EI 1873-3212
  • 通讯作者地址:   South China Univ Technol
  • 被引频次:   33
  • DOI:   10.1016/j.cej.2018.08.141
  • 出版年:   2019

▎ 摘  要

A facile, scalable route is adopted to synthesize egg-like few-layered graphene-wrapped and Fe3O4-pillared SiOx anodes (SiOx@Fe3O4@FLG) for lithium-ion batteries. The rationally designed egg-like SiOx-cored composites possess a strong capability in accommodating volume change of micro-sized SiOx particles during Li cycling. Comprehensive effect of integrated structure, pseudocapacitance contribution and enhanced kinetics enables SiOx@Fe3O4@FLG electrode to afford a high-rate, long-term performance, e.g., 833.4 mA h g(-1) (1550 mA h cm(-3)) at 0.5 A g(-1) after 500 cycles with 81.8% capacity retention ratio. Such an attribute makes SiOx@ Fe3O4@FLG composites promising anode materials for high-energy Li-ion battery.