Structural supercapacitor electrolytes based on bicontinuous ionic liquid-epoxy resin systems
Journal article, 2013
'Structural electrolytes' retain the desirable mechanical characteristics of structural (epoxy) resins whilst introducing sufficient ionic conductivity to operate as electrolytes in electrochemical devices. Here, a series of ionic liquid-epoxy resin composites were prepared to identify the optimum system microstructure required to achieve a high level of multifunctionality. The ionic conductivity, mechanical properties, thermal stability and morphology of the cured epoxy based structural electrolytes were studied as a function of phase composition for three fully formulated high performance structural epoxy systems. At only 30 wt% of structural resin and 70 wt% of ionic liquid based electrolyte, stiff monolithic plaques with thicknesses of 2-3 mm were obtained with a room temperature ionic conductivity of 0.8 mS cm-1 and a Young's modulus of 0.2 GPa. This promising performance can be attributed to a long characteristic length scale spinodal microstructure, suggesting routes to further optimisation in the future. © 2013 The Royal Society of Chemistry.
Author
N. Shirshova
Polymer and Composite Engineering (PaCE) Group
A. Bismarck
Polymer and Composite Engineering (PaCE) Group
S. Carreyette
Cytec Industrial Materials
Q. P. V. Fontana
Cytec Industrial Materials
E. S. Greenhalgh
Imperial College London
Per Jacobsson
Chalmers, Applied Physics, Condensed Matter Physics
Patrik Johansson
Chalmers, Applied Physics, Condensed Matter Physics
Maciej Jozef Marczewski
Chalmers, Applied Physics, Condensed Matter Physics
G. Kalinka
Federal Institute for Materials Research and Testing
A. Kucernak
Johan Scheers
Chalmers, Applied Physics, Condensed Matter Physics
M. S. Shaffer
J. H. G. Steinke
M. Wienrich
Federal Institute for Materials Research and Testing
Journal of Materials Chemistry A
20507488 (ISSN) 20507496 (eISSN)
Vol. 1 48 15300-15309Areas of Advance
Transport
Energy
Materials Science
Subject Categories
Materials Chemistry
DOI
10.1039/c3ta13163g