a PerkinElmer Spectrum GX instrument at ambient temperature.
Mechanical stress versus strain measurements of electrolytes
were performed by applying stress with a compression speed
of 0.5 mm min−1 using circular plastic crystal/polymer electrolyte
plates with the diameter of 20 cm and the thickness of 1 mm on a
WDS-5 electronic universaltesting machine (Changchun Chaoyang
test instrument co., LTD) at 25 ◦C.