Scalable core–spun coating yarn-based triboelectric nanogenerators with hierarchical structure for wearable energy harvesting and sensing via continuous manufacturing

Gao, Yuanyuan; Li, Zihua; Xu, Bingang; Li, Meiqi; Jiang, Chenghanzhi; Guan, Xiaoyang; Yang, Yujue

doi:10.1016/j.nanoen.2021.106672

Cited by 74 publications

(51 citation statements)

References 59 publications

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“…In addition, the charge transfer is already sensitive and significant even at lower frequencies, so the charge may not be able to increase significantly at higher frequencies. The power density, intrinsic impedance, and energy conversion efficiency of energy harvesting from electrospinning membrane TENGs with this material should be further optimized in the future by regulating materials composition, inventing unique structures, and employing power management circuits [ 22 , 23 , 24 , 25 ].…”

Section: Resultsmentioning

confidence: 99%

Wearable Triboelectric Nanogenerators Based on Polyamide Composites Doped with 2D Graphitic Carbon Nitride

Xiao

Bao

et al. 2022

Polymers

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Triboelectric nanogenerators (TENGs) have attracted many researchers’ attention with their remarkable potential despite the fact that the practical implementation requires further improvement in their electric performance. In this work, a novel graphene phase two-dimension material, graphitic carbon nitride (g-C3N4), was employed for the development of a TENG material with enhanced features. An electrospun nanofibrous PA66 membrane doped with g-C3N4 was fabricated as a multifunctional TENG for harvesting different kinds of mechanical energy and detecting human motions. By utilizing the innovative 2D material in PA66 solution for electrospinning, the as-made TENG showed a two times enhancement in electrical performance as compared to the control device, and also had the advantages of lightweight, softness, high porosity, and rugged interface properties. The assembled TENG with 4 cm2 could light up 40 light-emitting diodes by gentle hand clapping and power electronic watches or calculators with charging capacitors. At a given impact force of 40 N and 3 Hz, the as-made TENG can generate an open-circuit voltage of 80 V, short current of ±3 µA, charge transfer of 50 nC, and a maximum power density of 45 mW/m2 at a load resistance of 500 MΩ. The UV light sensitivity of TENG was also improved via g-C3N4 doping, showing that charge transfer is very sensitive with a two times enhancement with dopant. For the demonstration of applications, the g-C3N4 doped TENG was fabricated into an energy flag to scavenge wind energy and sensor devices for detecting human motions.

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Section: Resultsmentioning

confidence: 99%

Wearable Triboelectric Nanogenerators Based on Polyamide Composites Doped with 2D Graphitic Carbon Nitride

Xiao

Bao

et al. 2022

Polymers

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“…In addition, textile TENGs can also be used as flexible sensors for human motion monitoring (walking, running, etc. ), 26,27 respiratory monitoring, 28 sleeping monitoring, 29 and so on. Although textile TENGs have been widely used in the field of flexible sensing, it ignores the key issue of smart fabrics preparation process, which makes it limited in scale preparation and application to different degrees 30 .…”

Section: Introductionmentioning

confidence: 99%

“…All these problems seriously restrict the application of textile TENGs in wearable flexible devices. To solve these problems, several scholars have studied them and reported methods to prepare fiber‐shaped TENGs on a large scale (e.g., infusing conductive materials into hollow dielectric materials, or using weaving and winding) 19,26,27,34,36 . However, the prepared fibers do not meet the requirements of industrial textiles due to strength or process problems, or use vertical contact–separation mode, which limits the scope of application.…”

Section: Introductionmentioning

confidence: 99%

Large‐scale fabrication of core‐shell triboelectric braided fibers and power textiles for energy harvesting and plantar pressure monitoring

Zhang

Jia

et al. 2022

EcoMat

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Flexible and wearable energy harvesting devices and multifunctional sensors have been widely reported, but challenges in the large‐scale manufacturing process still exist. This work reports a large‐scale fabrication method of core‐shell triboelectric braided fibers that exhibit stable structure and strong tensile strength, which can be further integrated into power textiles with different fabric structures, such as weaving and knitting, with the purpose of biomechanical energy harvesting or plantar pressure monitoring. The triboelectric braided fibers integrating on the knitting power textiles exhibit good pressure sensitivity and fatigue resistance, which is combined with traditional socks to measure the pressure distribution of the plantar in different positions. The weaving power textiles exhibit high electrical output, which can be used for biomechanical energy harvesting and can easily light up 116 commercial LEDs. This large‐scale preparation approach provides more possibilities for power textiles applications in self‐powered wearable electronics and human–computer interfacing.

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“…[31][32][33] Benefiting from excellent scalability, high-strength, wear-comfort and light weight, yarn or yarnbased TENG has attracted significant research interest in the energy and sensing community. [34][35][36] However, current yarn-based electronic devices tend to have low or even no elasticity, which greatly limits their practical employing scenarios where adapt-todeformation is required.…”

Section: Introductionmentioning

confidence: 99%

Elastic Kernmantle E‐Braids for High‐Impact Sports Monitoring

Wang

et al. 2022

Advanced Science

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The kernmantle construction, a kind of braiding structure that is characterized by the kern absorbing most of the stress and the mantle protecting the kern, is widely employed in the field of loading and rescue services, but rarely in flexible electronics. Here, a novel kernmantle electronic braid (E‐braid) for high‐impact sports monitoring, is proposed. The as‐fabricated E‐braids not only demonstrate high strength (31 Mpa), customized elasticity, and nice machine washability (>500 washes) but also exhibit excellent electrical stability (>200 000 cycles) during stretching. For demonstration, the E‐braids are mounted to different parts of the trampoline for athletes’ locomotor behavior monitoring. Furthermore, the E‐braids are proved to act as multifarious intelligent sports gear or wearable equipment such as electronic jump rope and respiration monitoring belt. This study expands the kernmantle structure to soft flexible electronics and then accelerates the development of quantitative analysis in modern sports industry and athletes’ healthcare.

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Scalable core–spun coating yarn-based triboelectric nanogenerators with hierarchical structure for wearable energy harvesting and sensing via continuous manufacturing

Cited by 74 publications

References 59 publications

Wearable Triboelectric Nanogenerators Based on Polyamide Composites Doped with 2D Graphitic Carbon Nitride

Wearable Triboelectric Nanogenerators Based on Polyamide Composites Doped with 2D Graphitic Carbon Nitride

Large‐scale fabrication of core‐shell triboelectric braided fibers and power textiles for energy harvesting and plantar pressure monitoring

Elastic Kernmantle E‐Braids for High‐Impact Sports Monitoring

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