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Issue 7, 2014
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Wide electrochemical window ionic salt for use in electropositive metal electrodeposition and solid state Li-ion batteries

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Abstract

A stable hydrophobic ionic crystalline solid comprised of the N-propyl-N-methylpiperidinium cation and hexafluorophosphate anion PP13PF6 exhibits a remarkably wide electrochemical window of 7.2 V. This high purity crystalline ionic salt has versatility for use as an electrolyte in the electrodeposition of reactive metals such as tin. Moreover, this ionic salt can be used as a solid state electrolyte in Li-ion batteries. Theoretical calculations indicate that this solid state electrolyte has vacant sites that are preferential for Li-ion conductivity with an energy barrier of 0.4 eV. Further, the ionic crystals exhibit molecular rotations which facilitate facile Li-ion transport.

Graphical abstract: Wide electrochemical window ionic salt for use in electropositive metal electrodeposition and solid state Li-ion batteries

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Publication details

The article was received on 04 Dec 2013, accepted on 04 Dec 2013 and first published on 06 Dec 2013


Article type: Paper
DOI: 10.1039/C3TA15010K
Citation: J. Mater. Chem. A, 2014,2, 2194-2201
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    Wide electrochemical window ionic salt for use in electropositive metal electrodeposition and solid state Li-ion batteries

    S. Murugesan, O. A. Quintero, B. P. Chou, P. Xiao, K. Park, J. W. Hall, R. A. Jones, G. Henkelman, J. B. Goodenough and K. J. Stevenson, J. Mater. Chem. A, 2014, 2, 2194
    DOI: 10.1039/C3TA15010K

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