Unique Combination of Mechanical Strength, Thermal Stability, and High Ion Conduction in PMMA−Silica Nanocomposites Containing High Loadings of Ionic Liquid

Abstract

We report the simple synthesis of tractable and high ion conducting PMMA-silica nanocomposites achieved by sol−gel processing. Mechanical strength was obtained by incorporating silica nanofillers covalently bonded to the polymer chains, whereas flexibility, thermal stability, and high ionic conduction were provided by the ionic liquid.

High strain stretchable solid electrolytes

“…Gayet et. al [17]. described polymer-nanocomposite ionogels with breaking strains and tensile strengths comparable to those reported here (>200% and >3 MPa respectively), however, their system is only elastic at small strains.…”

“…High compliance and flexible electrolytes have been prepared by forming polymer networks within a range of ionic liquids, and the resulting solids are referred to as ionogels [14][15][16][17][18].…”

Hybrid Silica–Polymer Ionogel Solid Electrolyte with Tunable Properties

“…was obtained at 30 °C, and this is better or comparable to the ionic conductivities of other solid electrolytes containing ionic liquids. [ 5,12,23,24 ] up the potential for their use in devices manufactured with "all-solid" technology. The compositions with the best electrical properties are circled in red in Figure 1 .…”

“…Nevertheless, these materials demand a complicated synthesis process. [ 12,13 ] Herein, we report the synthesis and properties of a new solid electrolyte with IL-like properties. Referred to hereafter as "ionobrid", it is synthesized by immobilizing an IL within a nanocomposite hybrid organic-inorganic matrix.…”

Electrical conductivity, impedance, and percolation behavior of carbon nanofiber and carbon nanotube containing gellan gum hydrogels

“…These approaches include alternating and direct current measurement techniques such as electrical impedance, conductivity meters, and four-point probe methods. [8][9][10]12,13 Overall, there are a number of differences between these methods. For instance, conductivity meters evaluate the impedance using an alternating current at a single frequency, whereas four-point methods use a direct current, which is applied to the surface.…”