Self-Powered Wearable Electrocardiography Using a Wearable Thermoelectric Power Generator,ACS Energy Letters

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Self-Powered Wearable Electrocardiography Using a Wearable Thermoelectric Power Generator
ACS Energy Letters ( IF 19.3 ) Pub Date : 2018-01-27 00:00:00 , DOI: 10.1021/acsenergylett.7b01237
Choong Sun Kim ₁ , Hyeong Man Yang ₂ , Jinseok Lee ₁ , Gyu Soup Lee ₁ , Hyeongdo Choi ₁ , Yong Jun Kim ₁ , Se Hwan Lim ₃ , Seong Hwan Cho ₁ , Byung Jin Cho _{1,

2}

Affiliation

A self-powered wearable electrocardiography (ECG) system is demonstrated. The ECG sensing circuit was fabricated on a flexible PCB and powered by a wearable thermoelectric generator (w-TEG) using body heat as the energy source. To allow the TEG to obtain a large temperature difference for high power generation and also be wearable, a polymer-based flexible heat sink (PHS) comprised of a superabsorbent polymer (SAP) and a fiber that promotes liquid evaporation was devised. Parametric studies on the PHS were conducted, and the structure of the w-TEG was also optimized for the PHS. The output power density from the w-TEG with the PHS was over 38 μW/cm² for the first 10 min and over 13 μW/cm² even after 22 consecutive hours of driving the circuits. This power level is high enough to continuously drive the wearable ECG system, including the sensors and the power management circuits.

中文翻译：

使用可穿戴热电发电机的自供电可穿戴心电图

演示了一种自供电的可穿戴心电图（ECG）系统。ECG感应电路在柔性PCB上制造，并由可穿戴式热电发生器（w-TEG）供电，并利用人体热量作为能源。为了使TEG能够获得较大的温差以实现高功率发电并使其可穿戴，人们设计了一种由超吸收性聚合物（SAP）和促进液体蒸发的纤维组成的基于聚合物的柔性散热器（PHS）。进行了关于PHS的参数研究，并且w-TEG的结构也针对PHS进行了优化。从W-TEG与PHS超过38μW/厘米的输出功率密度²的前10分钟，超过13μW/厘米²即使连续驱动电路22个小时之后。此功率水平足够高，可以连续驱动可穿戴式ECG系统，包括传感器和电源管理电路。

更新日期：2018-01-27

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