Issue 22, 2014

Boron-doped graphene as a promising anode for Na-ion batteries

Abstract

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 ∼2.04 times that of the graphite anode in a Li-ion battery and ∼2.52 times that of hard carbon in a Na-ion battery. The high electronic mobility 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.

Graphical abstract: Boron-doped graphene as a promising anode for Na-ion batteries

Supplementary files

Article information

Article type
Communication
Submitted
11 Mar 2014
Accepted
07 Apr 2014
First published
09 Apr 2014

Phys. Chem. Chem. Phys., 2014,16, 10419-10424

Author version available

Boron-doped graphene as a promising anode for Na-ion batteries

C. Ling and F. Mizuno, Phys. Chem. Chem. Phys., 2014, 16, 10419 DOI: 10.1039/C4CP01045K

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