Electron-withdrawing substituents are introduced onto the phenothiazine core to raise its oxidation potential for use as a redox shuttle in high-voltage lithium-ion batteries. A perfluorinated derivative oxidizes at 4.3 V vs. Li+/0, and functions for ca. 500 h of 100% overcharge in LiNi0.8Co0.15Al0.05O2/graphite coin cells at a charging rate of C/10.
|Number of pages||5|
|Journal||Journal of Materials Chemistry A|
|State||Published - Apr 21 2016|
Bibliographical noteFunding Information:
We thank the National Science Foundation, Division of Chemistry for support under Award Number CHE-1300653 and through EPSCoR Award Number 1355438. SAO and CR thank the University of Kentucky's Vice President for Research and College of Arts & Sciences for start-up funds and a Diversity in Research Award. We also thank Andrew Jansen and Bryant Polzin at the Cell Manufacturing and Modeling Center at Argonne National Laboratory for battery electrodes and for advice in cycling experiments. The authors thank Celgard for providing polymer separators.
© The Royal Society of Chemistry 2016.
ASJC Scopus subject areas
- Chemistry (all)
- Renewable Energy, Sustainability and the Environment
- Materials Science (all)