Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | A2547-A2551 |
| Journal | Journal of the Electrochemical Society |
| Volume | 164 |
| Issue number | 12 |
| DOIs | |
| State | Published - 2017 |
Funding
This material is based upon work supported by the 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). The SCGSR program is administered by the Oak Ridge Institute for Science and Education for the DOE under contract number DE-SC0014664. This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering (RLS, GMV, BLA).
| Funders | Funder number |
|---|---|
| Office of Science Graduate Student Research | |
| SCGSR | |
| U.S. Department of Energy | DE-SC0014664 |
| Office of Science | |
| Basic Energy Sciences | |
| Workforce Development for Teachers and Scientists | |
| Oak Ridge Institute for Science and Education | |
| Division of Materials Sciences and Engineering |
