Research on the bonding and sodium storage properties of the Sn-C interface

Zhaowen Huang; Chuting Huang; Youpeng Li; Lingzhi Zhao

doi:10.1117/12.3015683

6 February 2024 Research on the bonding and sodium storage properties of the Sn-C interface

Zhaowen Huang, Chuting Huang, Youpeng Li, Lingzhi Zhao

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 129791M (2024) https://doi.org/10.1117/12.3015683
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

In this paper, with the method of a first-principal plane wave, the bonding and sodium storage properties of the Sn-C Interface were studied as anode materials for sodium-ion batteries. The results show that the formation energy of sodium intercalation in Sn-C-1 is 2.4622 eV, lower than the 2.8912 eV of Sn-C-2. The volume expansion ratio of Sn-C-1 after sodium insertion is negative, with a theoretical specific capacity of 441.9223 mAh g^-1. The volume expansion ratio of Sn-C-2 is up to 543.2273%. The conductivity of Sn-C-2 is stronger than that of Sn-C-1. The sodium ion is easy to be re-dissociated in the sodium removal reaction. The reversibility of sodium ion insertion into Sn-C-2 is not as good as that of Sn-C-1. Sn-C-1 is superior to Sn-C-2 as an anode material for sodium ions based on the consideration of important parameters, such as reversible insertion and removal of sodium ions, volume expansion ratio, etc.

Citation Download Citation

Zhaowen Huang, Chuting Huang, Youpeng Li, and Lingzhi Zhao "Research on the bonding and sodium storage properties of the Sn-C interface", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 129791M (6 February 2024); https://doi.org/10.1117/12.3015683

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