Study on rice straws derived activated carbon as efficient sulfur cathode material for high-performance lithium/sulfur batteries

Xiaoxia Sun; Siyue Chen; Siyu Wang; Guanghui Yuan; Qiong Xu; Zhaozhe Wang; Hongtao Xue

doi:10.1117/12.3015527

6 February 2024 Study on rice straws derived activated carbon as efficient sulfur cathode material for high-performance lithium/sulfur batteries

Xiaoxia Sun, Siyue Chen, Siyu Wang, Guanghui Yuan, Qiong Xu, Zhaozhe Wang, Hongtao Xue

Author Affiliations +

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 1297929 (2024) https://doi.org/10.1117/12.3015527
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

Using raw rice straws, an activated carbon material with stacking morphology has been prepared by designed carbonizing process. A carbon/sulfur (RC/S) binary material composite as a sulfur cathode material is synthesized by impregnating sulfur into the rice straw derived activated carbon. S particles are loaded uniformly among the twisted and wrinkled carbon thin sheets. The RC/S binary material shows reversible discharge capacity of 1400 mAh g⁻¹ at 0.1 C. After 200 cycles at 0.4 C, the reversible discharge capacity can maintain as 750 mAh g⁻¹. RC/S electrode exhibits more excellent rate capability and cycle performance than pristine S electrode. The strengthened electrochemical abilities are ascribed to the thin carbon sheets derived from rice straws and wrinkled morphology of the RC/S composite, which can enhance electrical conductivity of the sulfur cathode, short Li⁺ diffusion distance, and absorb polysulfides during the charge and discharge cycles.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xiaoxia Sun, Siyue Chen, Siyu Wang, Guanghui Yuan, Qiong Xu, Zhaozhe Wang, and Hongtao Xue "Study on rice straws derived activated carbon as efficient sulfur cathode material for high-performance lithium/sulfur batteries", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 1297929 (6 February 2024); https://doi.org/10.1117/12.3015527

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