A wearable thermoelectric generator using human body temperature is a promising power supply for wearable electronics. Here we discuss the design and fabrication of one kind of wearable thermoelectric generator constructed by n-type Mg_3.2Bi_1.498Sb_0.5Te_0.002 legs, p-type Bi_0.4Sb_1.6Te₃ legs, polyurethane matrices, and flexible Cu/polyimide electrodes. The proposed device has a low thermal bypass and an efficient thermal contact interface, resulting in a peak power density of ∼20.6 μW/cm² when placed on a human arm at an ambient temperature of 289 K (air velocity, 1.1 m/s) and a high peak power density of 13.8 mW/cm² at a temperature difference of 50 K. In addition, it can withstand 10,000 bending cycles at a bend radius of 13.4 mm, suggesting that the proposed wearable thermoelectric generator has the potential to be a real-time power supply for certain wearable electronics in daily life.

利用人体温度的可穿戴热电发电机是可穿戴电子设备的有前途的电源。在这里，我们讨论由n型Mg _3.2 Bi _1.498 Sb _0.5 Te _0.002支脚，p型Bi _0.4 Sb _1.6 Te ₃支脚，聚氨酯基体和柔性Cu /聚酰亚胺电极构成的一种可穿戴热电发电机的设计和制造。拟议的器件具有低热旁路和有效的热接触界面，导致峰值功率密度约为20.6μW/ cm ²在环境温度为289 K（风速，1.1 m / s）和在50 K的温差下具有13.8 mW / cm ^2的高峰值功率密度时放置在人的手臂上。此外，它还可以承受10,000次弯曲在弯曲半径为13.4 mm的情况下循环运行，这表明所提出的可穿戴热电发电机有可能成为日常生活中某些可穿戴电子设备的实时电源。