Non-Equilibrium Sodiation Pathway of CuSbS2

Jae Yeol Park, Yoonsu Shim, Khoi Phuong Dao, Sang Gil Lee, Jacob Choe, Ho Jun Lee, Yonghee Lee, Yuseon Choi, Joon Ha Chang, Seung Jo Yoo, Chi Won Ahn, Wonyoung Chang, Chan Woo Lee, Jong Min Yuk

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

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.

Original languageEnglish
Pages (from-to)17472-17479
Number of pages8
JournalACS Nano
Volume15
Issue number11
DOIs
StatePublished - 23 Nov 2021

Keywords

  • CuSbS
  • density functional theory
  • in-/ ex-situ transmission electron microscopy
  • Na ion battery
  • nonequilibrium sodiation pathway
  • ternary metal sulfide

Fingerprint

Dive into the research topics of 'Non-Equilibrium Sodiation Pathway of CuSbS2'. Together they form a unique fingerprint.

Cite this