fig8

Figure 8. (A) Photograph of a large-area piece of spandex fabric after the growth of the PPy structure. (B) Schematic illustration of the conductivity retaining mechanism of the stretchable WSC based on a textile electrode during stretching. (C) CV and (D) GCD curves of the stretchable SC composed of multiple devices in series and parallel under scan rate of 10 mV s^-1 and current density of 0.2 A g^-1. The inset is the cartoon of a stretchable SC device composed by four single devices in series. (E1-E4) Photographs of a red LED lit up by the stretchable SC as a wearable power supply attached on the human hand and finger under the original and stretchable states. (F1, F2) Photographs of a red LED bubble lit up by the as-prepared SC under stretch and twist condition. (G) Photographs of an electronic watch powered by a stretchable supercapacitor^[114].