Open AccessLarge-scale waterproof and stretchable textile-integrated laser- printed graphene energy storages
Author(s) -
Litty V. Thekkekara,
Miṅ Gu
Publication year - 2019
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/s41598-019-48320-z
Subject(s) - supercapacitor , energy storage , textile , graphene , wearable computer , materials science , capacitance , chip , laser , energy harvesting , robustness (evolution) , power density , optoelectronics , electrical engineering , nanotechnology , computer science , energy (signal processing) , power (physics) , telecommunications , embedded system , engineering , composite material , optics , physics , biochemistry , chemistry , electrode , quantum mechanics , gene
Textile integrable large-scale on-chip energy storages and solar energy storages take a significant role in the realization of next-generation primary wearable devices for sensing, wireless communication, and health tracking. In general, these energy storages require major features like mechanical robustness, environmental friendliness, high-temperature tolerance, inexplosive nature, and long-term storage duration. Here we report on large-scale laser-printed graphene supercapacitors of dimension 100 cm 2 fabricated in 3 minutes on textiles with excellent water stability, an areal capacitance, 49 mF cm −2 , energy density, 6.73 mWh/cm −2 , power density, 2.5 mW/cm −2 , and stretchability up to 200%. Further, a demonstration is given for the textile integrated solar energy storage with stable performance for up to 20 days to reach half of the maximum output potential. These cost-effective self-reliant on-chip charging units can become an integral part for the future electronic and optoelectronic textiles.