Wearable Energy Generating and Storing Textile Based on Carbon Nanotube Yarns

Tae Jin Mun, Shi Hyeong Kim, Jong Woo Park, Ji Hwan Moon, Yongwoo Jang, Chi Huynh, Ray H. Baughman, Seon Jeong Kim

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The challenges of textiles that can generate and store energy simultaneously for wearable devices are to fabricate yarns that generate electrical energy when stretched, yarns that store this electrical energy, and textile geometries that facilitate these functions. To address these challenges, this research incorporates highly stretchable electrochemical yarn harvesters, where available mechanical strains are large and electrochemical energy storing yarns are achieved by weaving. The solid-state yarn harvester provides a peak power of 5.3 W kg−1 for carbon nanotubes. The solid-state yarn supercapacitor provides stable performance when dynamically deformed by bending and stretching, for example. A textile configuration that consists of harvesters, supercapacitors, and a Schottky diode is produced and stores as much electrical energy as is needed by a serial or parallel connection of the harvesters or supercapacitors. This textile can be applied as a power source for health care devices or other wearable devices and be self-powered sensors for detecting human motion.

Original languageEnglish
Article number2000411
JournalAdvanced Functional Materials
Volume30
Issue number23
DOIs
StatePublished - 2020 Jun 1

Keywords

  • carbon nanotube yarn
  • energy harvester
  • intelligent textile
  • stretchable strain senor
  • supercapacitor

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