期刊
ADVANCED FUNCTIONAL MATERIALS
卷 30, 期 23, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202000411
关键词
carbon nanotube yarn; energy harvester; intelligent textile; stretchable strain senor; supercapacitor
类别
资金
- Creative Research Initiative Center for Self-Powered Actuation of the National Research Foundation
- Ministry of Science and ICT (MSIT) in Korea
- USA by Air Force Office of Scientific Research [FA9550-15-1-0089, FA9550-12-1-0035]
- NASA [NNX15CS05C]
- Robert A. Welch Foundation [AT-0029]
- Office of Naval Research [N00014-14-1-0158]
- Air Force Grant [AOARD-FA2386-13-4119]
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.
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