Article Dans Une Revue ACS Applied Energy Materials Année : 2024

Reveal the Influence of Conductive Carbon on Sulfur Crystallization: Key to High-Performance Aqueous Zinc–Sulfur Batteries

Résumé

Aqueous zinc–sulfur batteries (AZSBs) are emerging as high-energy-density batteries due to the high capacity of sulfur-based cathodes. However, sulfur suffers from poor conductivity and sluggish reaction kinetics. Therefore, conductive carbons were employed as additives to enhance conductivity and hosts to encapsulate sulfur, thereby improving the reaction kinetics and cycle stability. This work reveals the critical role of conductive carbon in sulfur crystallization and its impact on AZSBs’ performance. Amorphous sulfur with uniform distribution in S@Ketjen black (S@KB), unlike high crystallinity and aggregation in others, results in the best electrochemical performance, demonstrating higher capacity, enhanced reaction kinetics, and long-cycle stability.

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Dates et versions

hal-04958289 , version 1 (20-02-2025)

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Yunxiang Wen, Jiaoyi Ning, Yunyan Chen, Xiao Li, Dongjiu Xie, et al.. Reveal the Influence of Conductive Carbon on Sulfur Crystallization: Key to High-Performance Aqueous Zinc–Sulfur Batteries. ACS Applied Energy Materials, 2024, 7 (22), pp.10230-10237. ⟨10.1021/acsaem.4c02262⟩. ⟨hal-04958289⟩

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