Graphene aerogel modified carbon fiber reinforced composite structural supercapacitors

An ultralight, elastic carbon nanofiber aerogel with efficient energy storage and sorption properties

“…High values of energy density and power density can be achieved. The displayed energy density decreases from 37.04 to 7.41 W h kg −1 when the power density increases from 0.27 to 5.33 kW kg −1 , which are better than the values reported for many similar porous carbon devices, such as graphene-modified carbon fibers, 5 nitrogen-doped porous carbon textiles, 47 or copper hexacyanoferrate coated carbon fibers. 48 To further analyze the capacitive behavior, galvanostatic charging/discharging (GCD) tests were conducted in three-electrode cells at current densities of 1, 2, 3, 5 and 10 A g −1 , as shown in Fig.…”

“…Graphene has attracted a great deal of attention all over the world due to its unique properties. A mass of graphene-based nanocomposites has been developed for various applications, such as sensors, 1,2 actuators, 3 energy storage, 4–6 medicine, 7 defence 8 and desalination. 9 The self-assembly of graphene is a powerful technique to form an organized structure or pattern as a consequence of hierarchical graphene-based architectures with novel functions.…”

Designing Structural Electrochemical Energy Storage Systems: A Perspective on the Role of Device Chemistry

“…CFs may be electrochemically active themselves, or act as framework and current collector for a multifunctional matrix packed around them. EDLCs are particularly attractive, since the energy storage process is entirely physical, depending only on the interface between electrode and electrolyte ( Figures 2A,B ) ( Li et al, 2010 ; Qian et al, 2013a ; Shirshova et al, 2013a ; Qian et al, 2013b ; Javaid et al, 2014 ; Shirshova et al, 2014 ; Westover et al, 2014 ; Greenhalgh et al, 2015 ; Javaid et al, 2016 ; Senokos et al, 2016 ; Kwon et al, 2017 ; Senokos et al, 2017 ; Shen and Zhou, 2017 ; Xu and Zhang, 2017 ; Li et al, 2018a ; Chen et al, 2018 ; Javaid et al, 2018 ; Javaid and Irfan, 2018 ; Muralidharan et al, 2018 ; Senokos et al, 2018 ; Aderyani et al, 2019 ; Flouda et al, 2019a ; Chen et al, 2019 ; Patel et al, 2019 ; Reece et al, 2019 ; Patel et al, 2020b ; Rana et al, 2020 ; Reece et al, 2020 ; Sun et al, 2020 ; Sánchez-Romate et al, 2021 ; Subhani et al, 2021 ; Xu et al, 2021 ). The central advantage for SESDs, is that there is little or no change in volume, and no (re)dissolution of material, associated with the electrochemical process, minimizing stresses, and simplifying the structural design, whilst ensuring an excellent cycle life.…”

Composite Structural Supercapacitors: High-Performance Carbon Nanotube Supercapacitors through Ionic Liquid Localisation

“…While this combination of CNTs and PVDF ionogels have been explored for the fabrication of SSCs previously, few electrolyte configurations have been explored for optimisation of both electrochemical and mechanical performance in composites aside from [ 12 ]. Previous SSC configurations have examined sandwiching a self-contained supercapacitor stack with ionogel electrolyte into a composite [ 12 , 47 ] or infusing the whole SSC and composite structure with an electrolyte/resin mixture as the matrix material [ 5 , 11 , 23 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 ]. Embedding a self-contained supercapacitor is structurally disruptive and produces localised increases in laminate thickness and stress concentrations.…”