期刊
CHINESE PHYSICS B
卷 31, 期 11, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1674-1056/ac7859
关键词
alkali-metal ion batteries; borophene-graphene bilayer; adsorption property; diffusion behavior
资金
- National Natural Science Foundation of China [12174084]
- Scientific and Technological Research Foundation of Hebei Province, China [ZD2021065]
- Key Program of Natural Science Foundation of Hebei Province, China [A2021205024]
The striped-borophene and graphene bilayer (sB/Gr) exhibits excellent performance as an anode material for alkali-metal ion batteries, with low diffusion barriers and high storage capacities.
As the lightest two-dimensional material, monolayer borophene exhibits great potential as electrode materials, but it suffers from stability issues in the free-standing form. Here, the striped-borophene and graphene bilayer (sB/Gr) is found to be a high-performance anode material for rechargeable alkali-metal ion batteries. The first-principles results show that all the three alkali-metal atoms, Li, Na, and K, can be strongly adsorbed on sB/Gr with ultra-low diffusion barriers than that on pristine borophene/graphene, indicating good charge-discharge rates. Remarkably, high storage capacities are proposed for LIBs (1880 mA.h/g), NIBs (1648 mA.h/g), and KIBs (470 mA.h/g) with relatively small lattice change rate (< 2.9%) in the process of alkali-metal atoms intercalations. These intriguing features of sB/Gr make it an excellent choice for batteries.
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