Wearable Energy Generating and Storing Textile Based on Carbon Nanotube Yarns

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...

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Bibliographic Details
Published in:Advanced functional materials 2020-06, Vol.30 (23), p.n/a
Main Authors: Mun, Tae Jin, Kim, Shi Hyeong, Park, Jong Woo, Moon, Ji Hwan, Jang, Yongwoo, Huynh, Chi, Baughman, Ray H., Kim, Seon Jeong
Format: Article
Language:English
Subjects:
carbon nanotube yarn
Carbon nanotubes
Energy
energy harvester
Energy storage
Harvesters
Human motion
intelligent textile
Materials science
Motion perception
Schottky diodes
stretchable strain senor
supercapacitor
Supercapacitors
Textiles
Wearable technology
Yarn
Yarns
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Summary: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. A wearable textile that can generate and store electricity simultaneously is developed. The solid‐state yarn supercapacitor stores electricity from the solid‐state yarn energy harvester during stretching and releases the textile consisting of both yarns (see picture). The scale of generated and stored energy from the textile can be expanded by serial or parallel connection of each yarn.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.202000411