Abstract:
:Carbon nanotubes exhibit mechanical properties ideally suited for reinforced structural composites and surface area and conductivity attractive for electrochemical capacitors. Here we demonstrate the multifunctional synergy between these properties in a composite material exhibiting simultaneous mechanical and energy storage properties. This involves a reinforcing electrode developed using dense, aligned carbon nanotubes grown on stainless steel mesh that is layered in an ion conducting epoxy electrolyte matrix with Kevlar or fiberglass mats. The resulting energy storage composites exhibit elastic modulus over 5 GPa, mechanical strength greater than 85 MPa, and energy density up to 3 mWh/kg for the total combined system including electrodes, current collector, Kevlar or fiberglass, and electrolyte matrix. Furthermore, findings from in-situ mechano-electro-chemical tests indicate simultaneous mechanical and electrochemical functionality with invariant and stable supercapacitor performance maintained throughout the elastic regime.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Muralidharan N,Teblum E,Westover AS,Schauben D,Itzhak A,Muallem M,Nessim GD,Pint CLdoi
10.1038/s41598-018-34963-xsubject
Has Abstractpub_date
2018-12-05 00:00:00pages
17662issue
1issn
2045-2322pii
10.1038/s41598-018-34963-xjournal_volume
8pub_type
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