Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 164, Issue 12, Pages A2547-A2551Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.1171712jes
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Funding
- U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research (SCGSR) program (BHS)
- DOE [DE-SC0014664]
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering
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Non-Newtonian, shear-thickening lithium-ion battery electrolytes show promise for improved safety in high impact events by exhibiting a reversible transition to a solid-like phase under high shear. This aids in the prevention of shorting and subsequent combustion of volatile electrolyte under such conditions. In this work, we investigate the electrodynamics of shear-thickening electrolytes using conductivity under shear measurements, as well as finite-element modeling. We observe an order of magnitude drop in ionic conductivity under shear-thickening conditions. We suggest a working model to explain substantial drops in conductivity observed in shear-thickening electrolytes under shear. The results here can be generally applied to any electrolyte that exhibits non-Newtonian hydrodynamic properties. (C) 2017 The Electrochemical Society. All rights reserved.
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