Journal
ACS APPLIED ENERGY MATERIALS
Volume 5, Issue 4, Pages 4247-4258Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.1c03836
Keywords
polymer nanocomposite; epoxy-based resins; ionic liquid; structural composites; hybrid polymer electrolytes
Funding
- Agencia Estatal de Investigacion of Spanish Government [MULTIFUNC-EVs PID2019-107874RB-I00]
- Comunidad de Madrid Government [Project ADITIMAT-CM] [S2018/NMT-4411]
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This article investigates the fabrication and performance evaluation of solid polymer electrolytes based on epoxy resins, ionic liquid, and nanoparticles. The optimized electrolyte demonstrates excellent thermomechanical and electrochemical properties and follows the Arrhenius ion transport model.
The development of hybrid electrolytes (HEs) that allows high mechanical properties and high ionic conductivity is a key in the smart mobility progress. In this article, various solid polymer electrolytes (SPEs) based on a blend of epoxy resins, ionic liquid, and titania or alumina nanoparticles have been manufactured and their electrochemical and thermomechanical performances have been evaluated. The combination of SPE components providing the highest properties was studied, having a significant influence on the type of nanoparticles and their dispersion. The electrolyte with the best combination of properties was L65P35(ILE)Al2, which showed T-g = 83 degrees C and E' at 30 degrees C = 1.2 GPa as thermomechanical properties, and sigma(0) = 7 x 10(-4) S/cm, sigma(1) = 1.6 x 10(-6) S/cm, and C-sp = 5.6 x 10(-5) F/g at room temperature, as electrochemical properties. Moreover, the optimized electrolyte followed the Arrhenius ion transport model (E-a = 24.7 kJ/mol). These results would be promising for use as hybrid electrolyte in structural applications.
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