Abstract
We demonstrate a shear thickening electrolyte that stiffens into a solid-like barrier during a high energy event, like a car crash. This barrier prevents the electrodes from shorting during an impact, reducing the risk of fire or catastrophic safety events. In addition, we have demonstrated the ability to cycle NMC/graphite lithium ion cells over 200 cycles with no loss of capacity after formation. This chemistry introduces multifunctionality to a material previously feared due to its flammability.
| Original language | English |
|---|---|
| Pages (from-to) | 2084-2088 |
| Number of pages | 5 |
| Journal | ACS Energy Letters |
| Volume | 2 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 8 2017 |
Funding
The work presented herein was funded by the Advanced Research Projects Agency-Energy (ARPA-E), U.S. Department of Energy, under Award Number DE-AR-0869-1617. The authors particularly thank Ping Liu, Susan Babinec, and Julian Sculley for their helpful discussions. This Letter has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy. gov/downloads/doe-public-access-plan).