Silk fabric-based wearable thermoelectric generator for energy harvesting from the human body
Silk fabric-based wearable thermoelectric generator for energy harvesting from the human body
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DOI：
10.1016/j.apenergy.2015.11.038
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发表时间：
2016-02-15
期刊：
影响因子：
11.2
通讯作者：
Li, Chang Ming
中科院分区：
文献类型：
--
作者：
Lu, Zhisong;Zhang, Huihui;Li, Chang Ming
近年来，用于从人体收集能量的柔性热电（TE）发电机的开发吸引了极大的兴趣。然而，到目前为止，还没有实现基于市售织物的可穿戴TE发电机。在这项研究中，纳米结构的Bi 2 Te 3和Sb 2 Te 3的合成和沉积在丝绸织物的两侧，形成TE柱。这些TE柱与银箔连接，以制造集成12个热电偶阵列的原型。该发电机可在5-35 K温差范围内有效地将热能转化为电能。在100次弯曲和扭转循环期间，最大电压和功率输出分别类似于10 mV和15 nW，两者均无显著变化。在步行30分钟之前和之后，从臂连接的发电机收集不同的电压输出曲线，以突出基于丝绸织物的TE发电机的巨大潜力。该研究为开发可穿戴电子产品中实际应用的基于织物的TE发电机提供了一种新方法。(C)2015爱思唯尔有限公司版权所有。
The development of flexible thermoelectric (TE) power generators for harvesting energy from the human body has attracted significant interest in recent years. However, thus far, a wearable TE power generator based on commercially available fabrics has not been realized. In this study, nanostructured Bi2Te3 and Sb2Te3 were synthesized and deposited on both sides of a silk fabric to form TE columns. These TE columns were connected with silver foils to fabricate a prototype integrating an array of 12 thermocouples. The generator could effectively convert thermal energy into electricity in the temperature difference (AT) range of 5-35 K. The maximum voltage and power outputs were similar to 10 mV and similar to 15 nW, respectively, with no significant change in both, during 100 cycles of bending and twisting. Different voltage output profiles were collected from an arm-attached generator before and after 30 min of walking, to highlight the immense potential of the silk fabric-based TE generator. This study provides a new approach for developing fabric-based TE power generators for practical applications in wearable electronics. (C) 2015 Elsevier Ltd. All rights reserved.