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Volume 210, 2018
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Probing ion current in solid-electrolytes at the meso- and nanoscale

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We present experimental approaches to probe the ionic conductivity of solid electrolytes at the meso- and nanoscales. Silica ionogel based electrolytes have emerged as an important class of solid electrolytes because they maintain both fluidic and high-conductivity states at the nanoscale, but at the macroscale they are basically solid. Single mesopores in polymer films are shown to serve as templates for cast ionogels. The ionic conductivity of the ionogels was probed by two experimental approaches. In the first approach, the single-pore/ionogel membranes were placed between two chambers of a conductivity cell, in a set-up similar to that used for investigating liquid electrolytes. The second approach involved depositing contacts directly onto the membrane and measuring conductivity without the bulk solution present. Ionic conductivity determined by the two methods was in excellent agreement with macroscopic measurements, which suggested that the electrochemical properties of ionogel based electrolytes are preserved at the mesoscale, and ionogels can be useful in designing meso-scaled energy-storage devices.

Graphical abstract: Probing ion current in solid-electrolytes at the meso- and nanoscale

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Publication details

The article was received on 30 Mar 2018, accepted on 23 Apr 2018 and first published on 23 Apr 2018

Article type: Paper
DOI: 10.1039/C8FD00071A
Citation: Faraday Discuss., 2018,210, 55-67

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    Probing ion current in solid-electrolytes at the meso- and nanoscale

    J. Martinez, D. Ashby, C. Zhu, B. Dunn, L. A. Baker and Z. S. Siwy, Faraday Discuss., 2018, 210, 55
    DOI: 10.1039/C8FD00071A

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