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  High Lithium Transference Number Electrolytes Containing Tetratriflylpropene’s Lithium Salt

Popovic, J., Höfler, D., Melchior, J. P., Münchinger, A., List, B., & Maier, J. (2018). High Lithium Transference Number Electrolytes Containing Tetratriflylpropene’s Lithium Salt. The Journal of Physical Chemistry Letters, 9(17), 5116-5120. doi:10.1021/acs.jpclett.8b01846.

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Popovic, Höfler, Melchior, Münchinger, List, Maier 2018.pdf (Postprint), 921KB
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Popovic, Höfler, Melchior, Münchinger, List, Maier 2018.pdf
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 Creators:
Popovic, Jelena1, Author              
Höfler, Denis2, Author              
Melchior, J. P.1, Author
Münchinger, Andreas1, Author
List, Benjamin2, Author              
Maier, Joachim1, Author              
Affiliations:
1Max Planck Institute for Solid State Research, Stuttgart, Germany, ou_persistent13              
2Research Department List, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445585              

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 Abstract: Electrolytes with a high lithium transference number linked with high ionic conductivity are urgently needed for high power battery operation. In this work, we present newly synthesized lithium tetra(trifluoromethanesulfonyl)propene as a salt-in-glyme-based “salt-in-solvent” electrolyte. We employ impedance spectroscopy in symmetric Li/electrolyte/Li cells and pulsed field gradient nuclear magnetic resonance spectroscopy to investigate the lithium conduction mechanism. We find predominant lithium conductivity with very high lithium transference numbers (∼70% from the polarization experiments) and three times higher ionic conductivity compared to well-known lithium triflate in diglyme electrolyte. This is a consequence of the reduced mobilities of large anions linked with improved ionic dissociation.

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Language(s): eng - English
 Dates: 2018-06-132018-08-022018-08-022018-09-06
 Publication Status: Published in print
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.jpclett.8b01846
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Title: The Journal of Physical Chemistry Letters
  Abbreviation : J. Phys. Chem. Lett.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 9 (17) Sequence Number: - Start / End Page: 5116 - 5120 Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/1948-7185