Uninterrupted,efficient power supplies have posed a significant hurdle to the ubiquitous adoption of wearable devices,despite their potential for revolutionizing human‒machine interactions.This challenge is further co...Uninterrupted,efficient power supplies have posed a significant hurdle to the ubiquitous adoption of wearable devices,despite their potential for revolutionizing human‒machine interactions.This challenge is further compounded by the requirement of these devices to supply dependable energy for data-intensive sensing and transmission.Traditional thermoelectric solutions fail to deliver satisfactory performance under conditions of extremely low voltages.Here,we present a novel solution of a wearable thermoelectric generator integrated with an energy management system,which is capable of powering sensors and Bluetooth by harnessing body heat.Distinct from previous works,our innovation lies in its ability to consistently operate even with a minimal temperature difference(i.e.,4 K)between the human skin and the ambient environment,ensuring reliable data transmission within a time as short as 1.6 s.Furthermore,our system can recharge utilizing body heat under ultralow voltage conditions(30 mV).Our developed system provides a novel pathway for the continuous,reliable monitoring of self-contained wearable devices without depending on batteries.展开更多
基金This work was supported by the National Natural Science Foundation of China(Grant Nos.52008343 and 12202276)the Fundamental Research Funds for Central Universities(Grant No.SWU-KT22020。
文摘Uninterrupted,efficient power supplies have posed a significant hurdle to the ubiquitous adoption of wearable devices,despite their potential for revolutionizing human‒machine interactions.This challenge is further compounded by the requirement of these devices to supply dependable energy for data-intensive sensing and transmission.Traditional thermoelectric solutions fail to deliver satisfactory performance under conditions of extremely low voltages.Here,we present a novel solution of a wearable thermoelectric generator integrated with an energy management system,which is capable of powering sensors and Bluetooth by harnessing body heat.Distinct from previous works,our innovation lies in its ability to consistently operate even with a minimal temperature difference(i.e.,4 K)between the human skin and the ambient environment,ensuring reliable data transmission within a time as short as 1.6 s.Furthermore,our system can recharge utilizing body heat under ultralow voltage conditions(30 mV).Our developed system provides a novel pathway for the continuous,reliable monitoring of self-contained wearable devices without depending on batteries.
