title: High-performance multifunctional graphene yarns: toward wearable all-carbon energy storage textiles.
abstract: The successful commercialization of smart wearable garments is hindered by the lack of fully integrated carbon-based energy storage devices into smart wearables. Since electrodes are the active components that determine the performance of energy storage systems, it is important to rationally design and engineer hierarchical architectures atboth the nano- and macroscale that can enjoy all of the necessary requirements for a perfect electrode. Here we demonstrate a large-scale flexible fabrication of highly porous high-performance multifunctional graphene oxide (GO) and rGO fibers and yarns by taking advantage of the intrinsic soft self-assembly behavior of ultralarge graphene oxide liquid crystalline dispersions. The produced yarns, which are the only practical form of these architectures for real-life device applications, were found to be mechanically robust (Young's modulus in excess of 29 GPa) and exhibited high native electrical conductivity (2508 ± 632 S m(-1)) and exceptionally high specific surface area (2605 m(2) g(-1) before reduction and 2210 m(2) g(-1) after reduction). Furthermore, the highly porous nature of these architectures enabled us to translate the superior electrochemical properties of individual graphene sheets into practical everyday use devices with complex geometrical architectures. The as-prepared final architectures exhibited an open network structure with a continuous ion transport network, resulting in unrivaled charge storage capacity (409 F g(-1) at 1 A g(-1)) and rate capability (56 F g(-1) at 100 A g(-1)) while maintaining their strong flexible nature.
authors: Institute for Superconducting and Electronic Materials, AIIM Facility, Innovation Campus, University of Wollongong , North Wollongong, NSW 2522, Australia.
authors: Seyed Hamed
authors: SH
authors: Aboutalebi
authors: Rouhollah
authors: R
authors: Jalili
authors: Dorna
authors: D
authors: Esrafilzadeh
authors: Maryam
authors: M
authors: Salari
authors: Zahra
authors: Z
authors: Gholamvand
authors: Sima
authors: S
authors: Aminorroaya Yamini
authors: Konstantin
authors: K
authors: Konstantinov
authors: Roderick L
authors: RL
authors: Shepherd
authors: Jun
authors: J
authors: Chen
authors: Simon E
authors: SE
authors: Moulton
authors: Peter Charles
authors: PC
authors: Innis
authors: Andrew I
authors: AI
authors: Minett
authors: Joselito M
authors: JM
authors: Razal
authors: Gordon G
authors: GG
authors: Wallace