Abstract

Triboelectric nanogenerator (TENG) has attracted considerable attention in wearable electronics and energy harvesting associated with human activities. Fiber/yarn electrodes are widely applied in the wearable TENG system, which remains a challenge to guarantee mechanical ductility and stable electrical functions during long-term use. Inspired by high quality violin strings core-sheath design, silk/stainless-steel integrated yarns (SSYs) are continuously produced by simple co-wrapping spinning technique, which shows excellent mechanical strength, flexibility, conductivity, weaveability and triboelectric function. The SSYs can be modified to achieve tunable surface morphology. Finally, TENG cables have been fabricated, which can be stretched up to 100% and reveal a fast responsiveness to the stretching extent (voltage output of about 0.2, 0.6, 1.8, 2.8 V at 13%, 25%, 38%, 50% stretching, respectively). The TENG cables integrated textiles can not only harvest the energy generated by body movement but can also work as a self-supplied motion detector.

Graphic abstract

中文翻译：

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小提琴弦启发的可穿摩擦电纳米发电机应用的芯鞘丝/钢纱

摘要

摩擦电纳米发电机（TENG）在与人类活动相关的可穿戴电子设备和能量收集中引起了相当大的关注。纤维/纱线电极广泛应用于可穿戴的TENG系统中，在保证长期使用过程中的机械延展性和稳定的电气功能方面仍然是一项挑战。受高质量小提琴琴弦芯鞘设计的启发，采用简单的包缠纺纱技术连续生产丝/不锈钢一体化纱（SSY），该纱表现出出色的机械强度，柔韧性，导电性，可织造性和摩擦电性能。可以修改SSY以实现可调整的表面形态。最终，制成了TENG电缆，该电缆可以被拉伸到100％，并显示出对拉伸程度的快速响应（电压输出约为0.2、0.6、1.8，分别在13％，25％，38％和50％拉伸时为2.8 V）。集成了TENG电缆的纺织品不仅可以收集人体运动产生的能量，还可以用作自备的运动检测器。

图形摘要