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High‐Performance Biscrolled MXene/Carbon Nanotube Yarn Supercapacitors
Author(s) -
Wang Zhiyu,
Qin Si,
Seyedin Shayan,
Zhang Jizhen,
Wang Jiangting,
Levitt Ariana,
Li Na,
Haines Carter,
OvalleRobles Raquel,
Lei Weiwei,
Gogotsi Yury,
Baughman Ray H.,
Razal Joselito M.
Publication year - 2018
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201802225
Subject(s) - supercapacitor , materials science , yarn , energy storage , flexibility (engineering) , capacitance , carbon nanotube , electronics , nanotechnology , wearable technology , wearable computer , computer science , composite material , power (physics) , electrical engineering , embedded system , engineering , electrode , chemistry , physics , statistics , mathematics , quantum mechanics
Abstract Yarn‐shaped supercapacitors (YSCs) once integrated into fabrics provide promising energy storage solutions to the increasing demand of wearable and portable electronics. In such device format, however, it is a challenge to achieve outstanding electrochemical performance without compromising flexibility. Here, MXene‐based YSCs that exhibit both flexibility and superior energy storage performance by employing a biscrolling approach to create flexible yarns from highly delaminated and pseudocapacitive MXene sheets that are trapped within helical yarn corridors are reported. With specific capacitance and energy and power densities values exceeding those reported for any YSCs, this work illustrates that biscrolled MXene yarns can potentially provide the conformal energy solution for powering electronics beyond just the form factor of flexible YSCs.