fig11

Figure 11. Ionic thermoelectric sensors (1). (A) The voltage-time and current-time curves of the hydrogel being repeatedly bent at 60°. (B) Photos of bend deformation states of i-TE hydrogel, (C) The variation and retention rate of the Seebeck coefficient and conductivity after 100 bending cycles, (D) The voltage-time and current-time curves of the hydrogel being repeatedly stretched at 100 %, (E) Photos of strain deformation states of i-TE hydrogel, (F) The variation and retention rate of the Seebeck coefficient and conductivity after 100 strain cycles, (G) Schematic diagram of the wireless signal transmission system, (H) The changes in the bending and stretching of the palm are displayed on the mobile phone in real time through wireless technology. Reproduced with permission^[37]. Copyright 2023, Elsevier Ltd.