A Wearable All-Fabric Thermoelectric Generator
A Wearable All-Fabric Thermoelectric Generator
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DOI：
10.1002/admt.201800615
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发表时间：
2019-05-01
影响因子：
6.8
通讯作者：
Andrew, Trisha L.
中科院分区：
文献类型：
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作者：
Allison, Linden K.;Andrew, Trisha L.
可穿戴式热电发电机是一种很有前途的能源，可以为活动追踪器和便携式健康监测器供电。然而，已知的可穿戴发电机具有较大的外形尺寸，含有昂贵或有毒的低元素丰度材料，并且与人体迅速达到热平衡，这意味着热电只能在短时间内产生。在这里，一个全织物热电堆是通过蒸汽打印持续p掺杂聚（3,4-乙烯二氧噻吩）（PEDOT-Cl）到商业棉花上，这个热电堆被集成到一个特别设计的可穿戴带中，当戴在手上时，它会产生20毫伏的热电压。结果表明，与溶液处理的热电堆相比，反应性蒸汽涂层工艺产生机械坚固的织物热电堆，在低温差下产生显着的高热电功率因数。此外，描述了将热电堆自然集成到服装中的最佳实践，该实践允许在连续磨损的情况下保持热电堆上的显著温度梯度。
Wearable thermoelectric generators are a promising energy source for powering activity trackers and portable health monitors. However, known iterations of wearable generators have large form factors, contain expensive or toxic materials with low elemental abundance, and quickly reach thermal equilibrium with a human body, meaning that thermoelectric power can only be generated over a short period of wear. Here, an all-fabric thermopile is created by vapor printing persistently p-doped poly(3,4-ethylenedioxythiophene) (PEDOT-Cl) onto commercial cotton and this thermopile is integrated into a specially designed, wearable band that generates thermovoltages >20 mV when worn on the hand. It is shown that the reactive vapor coating process creates mechanically rugged fabric thermopiles that yield notably high thermoelectric power factors at low temperature differentials, as compared to solution-processed counterparts. Further, best practices for naturally integrating thermopiles into garments are described, which allow for significant temperature gradients to be maintained across the thermopile despite continuous wear.