Prestoring lithium into SnO2 coated 3D carbon fiber cloth framework as dendrite-free lithium metal anode--颗粒学报PARTICUOLOGY

Wei, T., Zhou, Y., Sun, C., Liu, L., Wang, S., Wang, M., . . . Tang, Y. (2024). Prestoring lithium into SnO2 coated 3D carbon fiber cloth framework as dendrite-free lithium metal anode. Particuology, 84, 89-97. https://doi.org/10.1016/j.partic.2023.03.008

Prestoring lithium into SnO₂ coated 3D carbon fiber cloth framework as dendrite-free lithium metal anode

Tao Wei ^a *, Yanyan Zhou ^a, Cheng Sun ^a, Lesheng Liu ^a, Sijia Wang ^a, Mengting Wang ^a, Ye Liu ^a, Qing Huang ^c, Quanchao Zhuang ^d *, Yongfu Tang ^b *

a School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, 212003, China
b Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
c College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
d Li-ion Batteries Lab, School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, China

10.1016/j.partic.2023.03.008

Volume 84, January 2024, Pages 89-97

Received 15 February 2023, Revised 1 March 2023, Accepted 8 March 2023, Available online 24 March 2023, Version of Record 1 April 2023.

E-mail: wt863@just.edu.cn; zhuangquanchao@126.com; tangyongfu@ysu.edu.cn

Highlights

• Lithium were prestored into SnO₂ coated 3D carbon fiber cloth framework.

• The entire Li injection process took only 14 s.

• CFC@SnO₂@Li.||LiFePO₄ cells had strong specific ability, excellent rate performance and long-time stability.

Abstract

For several decades, the promise of implementing of lithium (Li) metal anodes has been regarded as the "holy grail" for Li-based batteries. Herein, we have proposed a facile design of a carbon fiber cloth (CFC) framework coated with SnO₂ nanoparticles through a hydrothermal process, which served as a reliable host for prestoring molten Li to produce a CFC@SnO₂@Li composite anode. XRD, TEM, HRTEM, XPS and different electrochemical characterizations were carried out. Owing to the synergetic effects of the 3D conductive CFC and the coated lithiophilic SnO₂ nanoparticles, the designed CFC@SnO₂@Li electrodes can buffer the volume changes and reduce the local current density, thus suppress the Li dendrites during cycling. Consequently, the CFC@SnO₂ electrodes showed a high and stable CE of 98.6% for 1000 cycles at a current density of 1 mA cm⁻² (1 mAh cm⁻²). What is more, at a high current density of 5 mA cm⁻² and a high areal capacity of 5 mAh cm⁻², the symmetric cell displayed relatively low overpotential and long cycling lifetime of 1600 h. The results confirm its great potential as lithium metal anodes in practical battery applications.

Graphical abstract

Keywords

Lithiophilic; Lithium metal anodes; SnO₂;3D anode; Dendrite-free

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