Development of sodium-conducting polymer electrolytes: comparison between film-casting and films obtained via green processes
Publisher:
Elsevier
Issued date:
2016-02-20
Citation:
Martinez-Cisneros, C.S., Levenfeld, B., Varez, A., Sánchez, J.Y. (2016). Development of sodiumconducting polymer electrolyes: comparison between film-casting and films obtained via green processes. Electrochimica Acta, 192, pp. 456-466.
ISSN:
0013-4686
Sponsor:
This work has been supported by Projects funded by the regional government (Comunidad de Madrid through MATERYENER3CM S2013/MIT-2753) and the Spanish Government, MICINN
(MAT2013-46452-C4-3R). J-Y Sanchez acknowledges Universidad Carlos III de Madrid for
awarding him a European Chair of Excellence and the CONEX Programme funding, received from Universidad Carlos III de Madrid, the European Union’s Seventh Framework Programme for
research, technological development and demonstration (Grant agreement n 600371), Spanish Ministry of Economy and Competitiveness (COFUND2013-40258) and Banco Santander.
Project:
Gobierno de España. MAT2013-46452-C4-3R
Comunidad de Madrid. MATERYENER3CM S2013/MIT-2753
Gobierno de España. COFUND2013-40258
Gobierno de España. CTQ2009-12128
info:eu-repo/grantAgreement/EC/FP7/109452
Keywords:
sodium battery
,
solvent-free electrolyte
,
energy storage
,
polyethylene oxide
,
peo
,
green chemistry
,
na-ion batteries
,
poly(ethylene oxide)
,
poly(ethylene oxide)
,
electrochemical stability
,
lithium batteries
,
transport mechanism
,
secondary batteries
,
temperature
,
membranes
,
ionomers
,
complexes
Rights:
© Elsevier
Atribución-NoComercial-SinDerivadas 3.0 España
Abstract:
Sodium-conducting solvent-free polymer electrolytes based on commercially available and inexpensive materials poly(oxyethylene), POE, and three different sodium salts (Nal, NaCF3SO3 and NaClO4) were prepared and exhaustively characterized. In order to minimize
Sodium-conducting solvent-free polymer electrolytes based on commercially available and inexpensive materials poly(oxyethylene), POE, and three different sodium salts (Nal, NaCF3SO3 and NaClO4) were prepared and exhaustively characterized. In order to minimize the environmental impact related to conventional film processing based on casting, a combination of lyophilization and hot-pressing was successfully applied. Contrary to film-casting, this new approach led to very homogeneous and pore-free films. This study suggests the obtained polymer electrolyte films as a promising route to enhance not only ionic conductivity but also mechanical properties. Furthermore, a preliminary work on salt blends hosted by POE shows that they strongly decrease melting point and crystallinity of the polymer electrolytes and paves the way for enhanced sodium-conducting materials. (C) 2016 Elsevier Ltd. All rights reserved.
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