Fig. 4: Mechanical and electrical properties of Cry-gel.
a Nanoindentation load-displacement curves for LiBr gel and Cry-gel. b Tensile stress-strain curves for LiBr gel and Cry-gel at 25 °C. c Tensile stress-strain curves of LiBr gel and Cry-gel when exposed to −40 °C and 80 °C for 4 h, respectively. d Compressive stress-strain curves for LiBr gel and Cry-gel at 25 °C. e Compressive behaviors between LiBr gel and Cry-gel exposed to −40 °C and 80 °C for 4 h, respectively. f Comparison of compressive strength and tensile strength between reported gels and Cry-gel. g The Cry-gel (3 mm thick, 5 mm wide) lifting a 1 kg weight. h Photograph of Cry-gel supporting an adult with the weight of 47 kg. i Investigating the LED brightness using Cry-gel as a flexible conductor in different temperature environments. j Electrochemical impedance spectroscopy (EIS) curves for Cry-gel and LiBr gel in a room temperature environment. k EIS curves of LiBr gel and Cry-gel when exposed to −40 °C and 80 °C for 4 h, respectively. l Comparison of ionic conductivity between Cry-gel and previously reported ionogels. Data are presented as mean values ± SD, n = 3 independent samples.
