• 文献标题:   Boron-doped graphene as a promising anode for Na-ion batteries
  • 文献类型:   Article
  • 作  者:   LING C, MIZUNO F
  • 作者关键词:  
  • 出版物名称:   PHYSICAL CHEMISTRY CHEMICAL PHYSICS
  • ISSN:   1463-9076 EI 1463-9084
  • 通讯作者地址:   Toyota Res Inst North Amer
  • 被引频次:   122
  • DOI:   10.1039/c4cp01045k
  • 出版年:   2014

▎ 摘  要

The Na-ion battery has recently gained a lot of interest as a low-cost alternative to the current Li-ion battery technology. Its feasibility strongly depends on the development of suitable electrode materials. In the present work we propose a novel anode candidate, boron-doped graphene, for the Na-ion battery. Our first-principles calculations demonstrate that the sodiation of boron-doped graphene well preserves its structural integrity. The 2D-BC3 anode has the average sodiation voltage of 0.44 V in an appropriate range to avoid the safety concerns caused by the formation of dendritic deposits. The capacity of the 2D-BC3 anode reaches similar to 2.04 times that of the graphite anode in a Li-ion battery and similar to 2.52 times that of hard carbon in a Na-ion battery. The high electronicmobility and Na mobility on boron-doped graphene indicates that it has a high potential to reach good rate performance. These suggest the promising potential of boron-doped graphene to serve as an anode for a rechargeable Na-ion battery.