Mechanically Robust Thermoelectric Hydrogel with Superior Thermoelectricity for Low-Grade Thermal Energy Harvesting and Overheating Warning

). As a proof of concept, the assembled thermoelectric integrated device achieves the conversion of heat into electrical energy to drive a bulb array, which can harness stable thermosensation for overheating warnings even under continuous cyclic temperature changes. It is believed that this work may provide insights into the development of robust thermoelectric hydrogels for thermal energy harvesting and overheating warning devices.