World’s first thermoelectric rubber band generates electricity from body heat

Chinese researchers have developed an elastic thermoelectric rubber band that generates electricity from body heat, potentially eliminating the need for batteries in wearable devices. The material stretches to 850% of its original length while maintaining conductivity, offering continuous power for smartwatches, remote communications, and medical monitoring devices. This groundbreaking technology combines semiconducting polymers with elastic rubber to effectively convert the temperature difference between body heat and ambient air into usable electricity.