Multimaterial 3D Printing of Graphene-Based Electrodes for Electrochemical Energy Storage Using Thermoresponsive Inks
File(s)acsami.7b10285.pdf (2.98 MB)
Accepted version
Author(s)
Type
Journal Article
Abstract
The current lifestyles, increasing population, and limited resources result in energy research being at the forefront of worldwide grand challenges, increasing the demand for sustainable and more efficient energy devices. In this context, additive manufacturing brings the possibility of making electrodes and electrical energy storage devices in any desired three-dimensional (3D) shape and dimensions, while preserving the multifunctional properties of the active materials in terms of surface area and conductivity. This paves the way to optimized and more efficient designs for energy devices. Here, we describe how three-dimensional (3D) printing will allow the fabrication of bespoke devices, with complex geometries, tailored to fit specific requirements and applications, by designing water-based thermoresponsive inks to 3D-print different materials in one step, for example, printing the active material precursor (reduced chemically modified graphene (rCMG)) and the current collector (copper) for supercapacitors or anodes for lithium-ion batteries. The formulation of thermoresponsive inks using Pluronic F127 provides an aqueous-based, robust, flexible, and easily upscalable approach. The devices are designed to provide low resistance interface, enhanced electrical properties, mechanical performance, packing of rCMG, and low active material density while facilitating the postprocessing of the multicomponent 3D-printed structures. The electrode materials are selected to match postprocessing conditions. The reduction of the active material (rCMG) and sintering of the current collector (Cu) take place simultaneously. The electrochemical performance of the rCMG-based self-standing binder-free electrode and the two materials coupled rCMG/Cu printed electrode prove the potential of multimaterial printing in energy applications.
Date Issued
2017-10-25
Date Acceptance
2017-09-18
Citation
ACS APPLIED MATERIALS & INTERFACES, 2017, 9 (42), pp.37136-37145
ISSN
1944-8244
Publisher
AMER CHEMICAL SOC
Start Page
37136
End Page
37145
Journal / Book Title
ACS APPLIED MATERIALS & INTERFACES
Volume
9
Issue
42
Copyright Statement
Copyright © 2017 American Chemical Society
Sponsor
Commission of the European Communities
Engineering & Physical Science Research Council (EPSRC)
Imperial College London
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000414115700072&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
PIEF-GA-2012-329945
EP/K01658X/1
Subjects
Science & Technology
Technology
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Science & Technology - Other Topics
Materials Science
graphene oxide
graphene-based devices
colloidal processing
additive manufacturing
3D printing
LITHIUM-ION BATTERIES
LIQUID-CRYSTALS
OXIDE
SUPERCAPACITORS
COMPOSITES
CAPACITORS
HYDROGEL
SCAFFOLDS
AEROGELS
SURFACE
Publication Status
Published