Stretchable fabric generates electric power from woven thermoelectric fibers
Stretchable fabric generates electric power from woven thermoelectric fibers
复制标题
可拉伸织物通过编织热电纤维产生电力
DOI：
10.1038/s41467-020-14399-6
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发表时间：
2020-01-29
影响因子：
16.6
通讯作者：
Snyder, Gerald Jeffrey
中科院分区：
文献类型：
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作者：
Sun, Tingting;Zhou, Beiying;Snyder, Gerald Jeffrey
将热电模块组装到织物中，从体温中获取能量，有朝一日可能会为众多可穿戴电子产品提供动力。然而，织物的无效的2D结构限制了其在热电领域的应用。在这里，我们使有效的热电织物编织出来的热电纤维生产一个不显眼的工作热电模块。交替掺杂的碳纳米管纤维包裹着丙烯酸纤维编织成π型热电模块。利用源自互锁热电模块的弹性，可以制造没有衬底的可拉伸3D热电发电机，以使得能够与热流方向充分对准。该纺织品发电机在44 K的温差下显示出70 mWm− 2的峰值功率密度和出色的拉伸性（约80%应变），且输出无退化。进一步显示了身体运动与持续供电之间的兼容性。这里描述的发电机是真正的纺织品，证明有源热电可以编织到各种织物架构中，用于传感，能量收集或热管理。
Assembling thermoelectric modules into fabric to harvest energy from body heat could one day power multitudinous wearable electronics. However, the invalid 2D architecture of fabric limits the application in thermoelectrics. Here, we make the valid thermoelectric fabric woven out of thermoelectric fibers producing an unobtrusive working thermoelectric module. Alternately doped carbon nanotube fibers wrapped with acrylic fibers are woven into π-type thermoelectric modules. Utilizing elasticity originating from interlocked thermoelectric modules, stretchable 3D thermoelectric generators without substrate can be made to enable sufficient alignment with the heat flow direction. The textile generator shows a peak power density of 70 mWm−2for a temperature difference of 44 K and excellent stretchability (~80% strain) with no output degradation. The compatibility between body movement and sustained power supply is further displayed. The generators described here are true textiles, proving active thermoelectrics can be woven into various fabric architectures for sensing, energy harvesting, or thermal management.