Enhanced Output of On-Body Direct-Current Power Textiles by Efficient Energy Management for Sustainable Working of Mobile Electronics,Advanced Energy Materials

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Enhanced Output of On-Body Direct-Current Power Textiles by Efficient Energy Management for Sustainable Working of Mobile Electronics
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2022-06-19 , DOI: 10.1002/aenm.202201532
Renwei Cheng _{1,

2} , Chuan Ning _{1,

2} , Pengfei Chen _{1,

2} , Feifan Sheng _{1,

3} , Chuanhui Wei _{1,

2} , Yihan Zhang _{1,

2} , Xiao Peng _{1,

2} , Kai Dong _{1,

2} , Zhong Lin Wang _{1,

2,

4}

Affiliation

Triboelectric power textile (TPT) that can harvest widespread but always neglected human biomechanical energy is considered a promising and reliable energy source for wearable electronics. However, the alternating current and high impedance of triboelectric nanogenerators as well as the meager electrical output caused by the properties of the textile itself greatly restrict its practical applications. Here, an autonomous power textile with practical application value, which consists of a high-output direct-current TPT (DC-TPT) and a miniaturized energy management module (EMM), is achieved for continuous operation of wearable and mobile electronics. The home-preparable multiarray DC-TPT can harvest transferred charge of 5.5 µC per cycle with nine repeating units. Moreover, it is found that incorrect sewing positions of the polytetrafluoroethylene (PTFE) yarn change the working mechanism with a decreased DC output. The EMM with energy conversion efficiency of 82.6% can reduce the impedance of DC-TPT from 200 to 1.6 MΩ. With its powerful assistance, the watch can work continuously for 172 s just by manually sliding the DC-TPT 1.6 s on an arm, and wireless signals can be transmitted to 281 m away after sliding for 2 min. Various widely used electronics can also be easily and continuously driven.

中文翻译：

通过有效的能源管理提高贴身直流电源纺织品的输出，以实现移动电子设备的可持续工作

摩擦电力纺织品 (TPT) 可以广泛收集但始终被忽视的人类生物机械能，被认为是可穿戴电子产品的有前途且可靠的能源。然而，摩擦纳米发电机的交流电和高阻抗以及纺织品本身的特性导致的微弱电输出极大地限制了其实际应用。在这里，由高输出直流TPT（DC-TPT）和小型化能量管理模块（EMM）组成的具有实际应用价值的自主电源纺织品实现了可穿戴和移动电子设备的连续运行。家庭可制备的多阵列 DC-TPT 可以通过 9 个重复单元在每个循环中收集 5.5 µC 的转移电荷。而且，发现聚四氟乙烯（PTFE）纱线的错误缝纫位置改变了工作机制，降低了直流输出。能量转换效率为 82.6% 的 EMM 可以将 DC-TPT 的阻抗从 200 MΩ 降低到 1.6 MΩ。凭借其强大的辅助功能，只需在手臂上手动滑动 DC-TPT 1.6 s，手表即可连续工作 172 s，滑动 2 分钟即可将无线信号传输到 281 m 外。各种广泛使用的电子设备也可以轻松连续地驱动。滑动2分钟后，无线信号可传输至281m外。各种广泛使用的电子设备也可以轻松连续地驱动。滑动2分钟后，无线信号可传输至281m外。各种广泛使用的电子设备也可以轻松连续地驱动。

更新日期：2022-06-19

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