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Title: Rate-dependent deformation of amorphous sulfide glass electrolytes for solid-state batteries
Authors: Athanasiou, Christos E.
Liu, Xing
Jin, Mok Yun
Nimon, Eugene
Visco, Steve
Lee, Cholho
Park, Myounggu
Yun, Junnyeong
Padture, Nitin P.
Gao, Huajian
Sheldon, Brian W.
Keywords: Engineering::Mechanical engineering
Issue Date: 2022
Source: Athanasiou, C. E., Liu, X., Jin, M. Y., Nimon, E., Visco, S., Lee, C., Park, M., Yun, J., Padture, N. P., Gao, H. & Sheldon, B. W. (2022). Rate-dependent deformation of amorphous sulfide glass electrolytes for solid-state batteries. Cell Reports Physical Science, 3(4), 100845-.
Journal: Cell Reports Physical Science
Abstract: Sulfide glasses are emerging as potential electrolytes for solid-state batteries. The mechanical behavior of these materials can significantly impact cell performance, and it is thus imperative to understand their deformation and fracture mechanisms. Previous work mainly reports properties obtained under quasi-static loading conditions, but very little is known about deformation under dynamic conditions. The current investigation shows that the sulfide glass mechanical behavior is dominated by viscoplasticity, differing substantially from polycrystalline oxide and sulfide solid electrolytes. Finite element modeling indicates that the sulfide glass stiffness is high enough to maintain good contact with softer lithium metal electrodes under moderate stack pressures. The observed viscoplasticity also implies that battery operating conditions will play an important role in electro-chemo-mechanical processes that are associated with dendritic lithium penetration. In general, the rate-dependent mechanical behavior of the sulfide glass electrolytes documented here offers a new dimension for designing next-generation all-solid-state batteries.
ISSN: 2666-3864
DOI: 10.1016/j.xcrp.2022.100845
Schools: School of Mechanical and Aerospace Engineering 
Organisations: Institute of High Performance Computing, A*STAR
Rights: © 2022 The Authors. This is an open access article under the CC BY-NC-ND license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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