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Proton conducting gel polymer electrolytes for supercapacitor applications

Łatoszyńska, Anna A. and Taberna, Pierre-Louis and Simon, Patrice and Wieczorek, Władysław Proton conducting gel polymer electrolytes for supercapacitor applications. (2017) Electrochimica Acta, 242. 31-37. ISSN 0013-4686

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Official URL: http://dx.doi.org/10.1016/j.electacta.2017.04.122

Abstract

A non-aqueous, mechanically-stable, proton conducting gel polymer electrolyte has been prepared for Electrochemical Capacitor (supercapacitor) applications. It is based on 2-hydroxymethylmethacrylate monomer mixed with two different solvents (propylene carbonate and N,N-dimethylformamide). It was shown that the capacitive performance changes with the gel electrolyte composition. The proton conduction type mechanism affects ions mobility and transport into the porous carbon electrode. Addition of small amounts of DMF solvent leads to a change in the conduction mechanism from a vehicleto a Grotthuss-type, and capacitance of 90 F g-1 at 20 °C was achieved using a 15 wt. % DPhHPO4/P (HEMA)/30 wt. % DMF–70 wt. % PC gel composition. Electrochemical tests were done in a large temperature range (from -40 to 80 °C). The cell delivered a capacitance of 54 F g-1 at -40 °C, that is 60% of the value obtained at room temperature, and 90 F g-1 at 80 °C within voltage window of 1 V.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The original PDF of the article can be found at http://www.sciencedirect.com/science/article/pii/S0013468617308903
HAL Id:hal-01599332
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:02 Oct 2017 08:30

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