• 文献标题:   Graphene nanosheets wrapped CoFe2O4 nanosphere composites as high performance anode for advanced lithium storage
  • 文献类型:   Article
  • 作  者:   CAI Y
  • 作者关键词:   anode, electrochemical performance, g, cfos composite, cycle stability
  • 出版物名称:   IONICS
  • ISSN:   0947-7047 EI 1862-0760
  • 通讯作者地址:   Yongcheng Vocat Coll
  • 被引频次:   0
  • DOI:   10.1007/s11581-020-03530-8 EA MAR 2020
  • 出版年:   2020

▎ 摘  要

High electrochemical performance anode materials played a key role in the lithium-ion batteries employed in electric vehicles. In this work, graphene nanosheets wrapped CoFe2O4 (G/CFOs) composites were successfully prepared by a facile one-pot method with hydrothermal reaction. The scanning electron microscopy showed that the CoFe2O4 nanospheres were uniformly wrapped by the graphene nanosheets. The as-prepared G/CFOs composites displayed excellent electrochemical performance with high specific capacity of 1496 mAh g(-1) at the current density of 0.2 A g(-1) and superior rate performance of 1026 mAh g(-1) at high rate of 6 A g(-1). Besides, the G/CFOs composites exhibited excellent cycle stability of 796 mAh g(-1) at 6 A g(-1) after 300 cycles. It is believed that our work may provide a new method to develop the anode materials for the lithium-ion batteries.