Journal
APPLIED PHYSICS LETTERS
Volume 112, Issue 5, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.5013617
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Funding
- Natural Science Foundation of China [11574167, 11674289]
- New Century 151 Talents Project of Zhejiang Province
- KC Wong Magna Foundation in Ningbo University
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Two-dimensional materials as electrodes is believed to be one of the key solutions for the development of future battery technologies. Based on the first-principles calculations, we predict that a metallic carbon allotrope (net W), with high electrochemical performance, can be served as an anode material for Li-ion batteries (LIBs). The net W exhibits metallic conductivity, and the conductivity is excellently maintained after Li adsorption. Specifically, upon Li intercalation, only slight lattice variations (< 1.5%) occur, which ensures a good cycling stability. The low diffusion barriers of 0.4 eV and the moderate average open circuit voltage of 0.42 V are in between those of the currently used anodes, graphite, and TiO2. Most remarkably, the storage capacity can be up to 1675 mA h g(-1), which is about 4.5 times larger than that of the commercial graphite anode. The present findings identify that net W could be an excellent anode material for the application in LIBs. Published by AIP Publishing.
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