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Structural supercapacitor electrolytes based on bicontinuous ionic liquid-epoxy resin systems

N.Y. Shirshova ; A. Bismarck ; S. Carreyette ; Q.P.V. Fontana ; E.S. Greenhalgh ; Per Jacobsson (Institutionen för teknisk fysik, Kondenserade materiens fysik) ; Patrik Johansson (Institutionen för teknisk fysik, Kondenserade materiens fysik) ; Maciej Marczewski (Institutionen för teknisk fysik, Kondenserade materiens fysik) ; G. Kalinka ; A.R.J. Kucernak ; Johan Scheers (Institutionen för teknisk fysik, Kondenserade materiens fysik) ; M.S.P. Shaffer ; J.H.G.S. Steinke ; M. Wienrich
Journal of Materials Chemistry A (2050-7488). Vol. 1 (2013), 48, p. 15300-15309.
[Artikel, refereegranskad vetenskaplig]

'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.



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Denna post skapades 2014-01-14. Senast ändrad 2016-09-14.
CPL Pubid: 192320

 

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