Wearable Supercapacitive Temperature Sensors with High Accuracy Based on Ionically Conductive Organogel and Macro‐Kirigami Electrode

Wearable temperature sensors with high accuracy are critical for human health monitoring. Ideally, they should show matching that of medical-grade thermometers (i.e., ± ≈0.1–0.2 °C). Achieving this goal has proven challenging must also meet key wearable requirements, such as flexibility, stretchability, and breathability. Herein, a new stretchable supercapacitive sensor resolution ±0.2 °C, is presented, which was achieved by. Two strategies to increase sensitivity minimize the interferences mechanical stretching pressure: a) synthesizing an ion-conductive NaCl-organogel serve redox-active separator suppress interference compression; b) using kirigami design decrease stretch improve These two novel endow °C exceptionally 0.095 °C−1, more than 13 times higher traditional dielectric-capacitive sensors. The potential in measuring body demonstrated by continuously monitoring skin temperatures under medical compression garment exerts pressure on unsteady wrist flexion. findings confirm organogel-based offer extraordinary significantly better reported literature. combined characteristics resolution, linearity, breathability, stretchability make promising candidate skin-interfaced devices.