Versatile Core–Sheath Yarn for Sustainable Biomechanical Energy Harvesting and Real‐Time Human‐Interactive Sensing.

Kai Dong, Jianan Deng, Wenbo Ding, Aurelia C. Wang, Peihong Wang, Chaoyu Cheng, Limin Jin, Bohong Gu, Baozhong Sun, Zhong Lin Wang, Yi-Cheng Wang

Research output: Contribution to journalArticlepeer-review

Abstract

Abstract: The emergence of stretchable textile‐based mechanical energy harvester and self‐powered active sensor brings a new life for wearable functional electronics. However, single energy conversion mode and weak sensing capabilities have largely hindered their development. Here, in virtue of silver‐coated nylon yarn and silicone rubber elastomer, a highly stretchable yarn‐based triboelectric nanogenerator (TENG) with coaxial core–sheath and built‐in spring‐like spiral winding structures is designed for biomechanical energy harvesting and real‐time human‐interactive sensing. Based on the two advanced structural designs, the yarn‐based TENG can effectively harvest or respond rapidly to omnifarious external mechanical stimuli, such as compressing, stretching, bending, and twisting. With these excellent performances, the yarn‐based TENG can be used in a self‐counting skipping rope, a self‐powered gesture‐recognizing glove, and a real‐time golf scoring system. Furthermore, the yarn‐based TENG can also be woven into a large‐area energy‐harvesting fabric, which is capable of lighting up light emitting diodes (LEDs), charging a commercial capacitor, powering a smart watch, and integrating the four operational modes of TENGs together. This work provides a new direction for textile‐based multimode mechanical energy harvesters and highly sensitive self‐powered motion sensors with potential applications in sustainable power supplies, self‐powered wearable electronics, personalized motion/health monitoring, and real‐time human‐machine interactions.
Original languageEnglish (US)
Pages (from-to)1-12
Number of pages12
JournalAdvanced Energy Materials
Volume8
Issue number23
DOIs
StatePublished - Aug 16 2018

Keywords

  • RENEWABLE energy sources
  • BIOMECHANICS
  • ENERGY harvesting
  • HARVESTING machinery
  • WEARABLE technology
  • ENERGY conversion
  • core–sheath structures
  • human‐interactive sensors
  • mechanical energy harvesting
  • triboelectric nanogenerator

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