Highly Stretchable and Transparent Ionic Conductor with Novel Hydrophobicity and Extreme-Temperature Tolerance
Properties of the ion gels with different polymer contents. 20%, 40%, 60%, and 80% represent the polymer content of the testing samples. (a) Stress-strain curves of the ion gels tested until failure. The elongation at breaks was significantly enhanced compared with existing ion gels. (b) Transmittance versus wavelength curves of ion gels in the visible range; samples for testing were 1 mm thick. (c) Ionic conductivity of the ion gels with different polymer contents. (d) Linear Sweep Voltammetry (LSV) curves of the ion gels with a scanning rate of 1 mV/s. All of the ion gels with different polymer contents showed a high decomposition voltage which exceeded 3.5 V. (e) Differential scanning calorimetry (DSC) curves of the ion gels. The DSC endothermic curve is up. The curves showed they had very low glass transition temperature (), demonstrating low-temperature tolerance. (f) Thermogravimetric curves of the ion gels, demonstrating extremely high thermal stability with decomposition temperature exceeding 300°C.