1. Non-Equilibrium Sodiation Pathway of CuSbS2
- Author
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Sang Gil Lee, Yuseon Choi, Seung Jo Yoo, Joon Ha Chang, Chi Won Ahn, Jong Min Yuk, Jacob Choe, Jae Yeol Park, Ho Jun Lee, Khoi Phuong Dao, Wonyoung Chang, Yong-Hee Lee, Chan-Woo Lee, and Yoon Su Shim
- Subjects
chemistry.chemical_classification ,Materials science ,Sulfide ,General Engineering ,General Physics and Astronomy ,chemistry.chemical_element ,Electrochemistry ,Copper ,Anode ,Metal ,Antimony ,chemistry ,Chemical engineering ,visual_art ,visual_art.visual_art_medium ,General Materials Science ,Density functional theory ,Ternary operation - Abstract
Binary metal sulfides have been explored as sodium storage materials owing to their high theoretical capacity and high stable cyclability. Nevertheless, their relative high charge voltage and relatively low practical capacity make them less attractive as an anode material. To resolve the problem, addition of alloying elements is considerable. Copper antimony sulfide is investigated as a representative case. In this study, we do not only perform electrochemical characterization on CuSbS2, but also investigate its nonequilibrium sodiation pathway employing in-/ex situ transmission electron microscopy, in situ X-ray diffraction, and density functional theory calculations. Our finding provides valuable insights on sodium storage into ternary metal sulfide including an alloying element.
- Published
- 2021
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