• 文献标题:   Non-woven fabric electrodes based on graphene-based fibers for areal-energy-dense flexible solid-state supercapacitors
  • 文献类型:   Article
  • 作  者:   SHAO F, HU NT, SU YJ, YAO L, LI B, ZOU C, LI G, ZHANG CR, LI H, YANG Z, ZHANG YF
  • 作者关键词:   hydrazine, wetspinning, graphene fiber fabric, flexible textile electrode, areal capacitance, polyaniline
  • 出版物名称:   CHEMICAL ENGINEERING JOURNAL
  • ISSN:   1385-8947 EI 1873-3212
  • 通讯作者地址:   Shanghai Jiao Tong Univ
  • 被引频次:   4
  • DOI:   10.1016/j.cej.2019.123692
  • 出版年:   2020

▎ 摘  要

Nowadays, lightweight, flexible, and wearable sustainable electric-power sources have attracted increasing at-tention due to the rapid development of portable electronics. Graphene fiber fabrics, as newly discovered carbon textiles, have exhibited attractive properties for wearable power devices. How to realize scalable construction of non-woven graphene-based fabric electrodes with high areal capacitance is challenging for portable electronics. Here, a novel coagulation bath fabrication technique was firstly reported to prepare reduced graphene oxide fiber fabrics (rGOFFs) for areal-energy-dense supercapacitors. The as-prepared rGOFFs showed high flexibility and conductivity. The symmetric supercapacitors (SCs) assembled with rGOFFs (95 mu m) based fabric electrodes performed a high specific gravimetric capacitance (C-m) of 285 F/g at 0.1 A/g and 220 F/g at 1 A/g. The areal capacitance (C-a) of rGOFFs (220 mu m) based electrode reached up to 2812 mF/cm(2) at 1 mA/cm(2). After elec-trochemical deposition of polyaniline (PANI) on rGOFFs (220 mu m) substrate, the C-a of rGOFF@PANI - 220 mu m based electrode was intensified to 3828 mF/cm(2) at 1 mA/cm(2) (172 F/cm(3)). The symmetric all-solid-state SCs showed an energy density from 28 mu Wh/cm(2) (254 pW/cm(2)) to 11 mu Wh/cm(2) (4950 pW/cm(2)). Overall, the as-designed rGOFFs based fabric electrodes and their fabrication techniques are of great potential for the next-generation multi-functional textile electronics.