High-entropy sulfoselenide as negative electrodes with fast kinetics and high stability for sodium-ion batteries

Shengfeng Zhang, Wenhua Zuo, Xiaoguang Fu, Juntao Li, Qiuwen Zhang, Weihua Yang, Hongwei Chen, Junyu Zhang, Xianghui Xiao, Khalil Amine, Shi-Gang Sun, Fang Fu (), Meidan Ye () and Gui-Liang Xu ()
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Shengfeng Zhang: Huaqiao University
Wenhua Zuo: Argonne National Laboratory
Xiaoguang Fu: Xiamen University
Juntao Li: Xiamen University
Qiuwen Zhang: Huaqiao University
Weihua Yang: Huaqiao University
Hongwei Chen: Huaqiao University
Junyu Zhang: Huaqiao University
Xianghui Xiao: Brookhaven National Laboratory
Khalil Amine: Argonne National Laboratory
Shi-Gang Sun: Xiamen University
Fang Fu: Huaqiao University
Meidan Ye: Xiamen University
Gui-Liang Xu: Argonne National Laboratory

Nature Communications, 2025, vol. 16, issue 1, 1-13

Abstract: Abstract Conversion electrodes offer higher reversible capacity and lower cost than conventional intercalation chemistry electrodes, but suffer from kinetic limitation and large volume expansion. Despite significant efforts, developing conversion electrodes with fast charging capability and extended lifespan remains challenging. Here, by leveraging the advantages of high-entropy doping and morphology tailoring, we develop a high-entropy hierarchical micro/nanostructured sulfoselenide Cu0.88Sn0.02Sb0.02Bi0.02Mn0.02S0.9Se0.1 electrode with entropy-driven fast-charging capability. When used as a negative electrode material for sodium-ion batteries, it achieves a stable cycle life of 10,000 cycles at 30 A g−1 and a high reversible capacity of 365.7 mAh g−1 under fast charging in 13 seconds at 100 A g−1. Moreover, high-entropy sulfoselenide also demonstrates stable cycling and good rate capability as a positive electrode material for lithium metal batteries, achieving a fast-charging capability of 37 seconds that is comparable with state-of-the-art layered cathodes. High-entropy sulfoselenide is characterized by its robust crystal structure, low ion diffusion barrier, and effective suppression of side reactions with electrolytes during cycling. Importantly, transmission X-ray microscopy affirms the chemical stability of HESSe, which underpins its fast-charging performance.

Date: 2025
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DOI: 10.1038/s41467-025-59078-6

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