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• Nair, J
• Chiappone, A
• Destro, M
• Jabbour, L
• Zeng, J
• Di Lupo, F
• Garino, N
• Meligrana, G
• Francia, C
• Gerbaldi, C
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• Nair, J
• Chiappone, A
• Destro, M
• Jabbour, L
• Zeng, J
• Di Lupo, F
• Garino, N
• Meligrana, G
• Francia, C
• Gerbaldi, C
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• Nair, J
• Chiappone, A
• Destro, M
• Jabbour, L
• Zeng, J
• Di Lupo, F
• Garino, N
• Meligrana, G
• Francia, C
• Gerbaldi, C

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Membranes 2012, 2(2), 307-324; doi:10.3390/membranes2020307

Article

UV-Induced Radical Photo-Polymerization: A Smart Tool for Preparing Polymer Electrolyte Membranes for Energy Storage Devices

Jijeesh R. Nair ^1,* , Annalisa Chiappone ² , Matteo Destro ¹ , Lara Jabbour ³ , Juqin Zeng ¹ , Francesca Di Lupo ¹ , Nadia Garino ² , Giuseppina Meligrana ¹ , Carlotta Francia ¹  and Claudio Gerbaldi ^1,2,*

¹ Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, Torino 10129, Italy ² Center for Space Human Robotics at Polito, Italian Institute of Technology, C.so Trento 21, Torino 10129, Italy ³ UMR 5518 CNRS-Grenoble-INP, Domaine Universitaire, 461 rue de la Papeterie, BP 65, Saint Martin d’Hères 38402, France

* Authors to whom correspondence should be addressed.

Received: 28 April 2012; in revised form: 29 May 2012 / Accepted: 7 June 2012 / Published: 19 June 2012

(This article belongs to the Special Issue Membranes for Electrochemical Energy Applications)

Download PDF Full-Text [502 KB, Updated Version, uploaded 2 April 2013 17:34 CEST]

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Abstract: In the present work, the preparation and characterization of quasi-solid polymer electrolyte membranes based on methacrylic monomers and oligomers, with the addition of organic plasticizers and lithium salt, are described. Noticeable improvements in the mechanical properties by reinforcement with natural cellulose hand-sheets or nanoscale microfibrillated cellulose fibers are also demonstrated. The ionic conductivity of the various prepared membranes is very high, with average values approaching 10^-3 S cm^-1 at ambient temperature. The electrochemical stability window is wide (anodic breakdown voltages > 4.5 V vs. Li in all the cases) along with good cyclability in lithium cells at ambient temperature. The galvanostatic cycling tests are conducted by constructing laboratory-scale lithium cells using LiFePO₄ as cathode and lithium metal as anode with the selected polymer electrolyte membrane as the electrolyte separator. The results obtained demonstrate that UV induced radical photo-polymerization is a well suited method for an easy and rapid preparation of easy tunable quasi-solid polymer electrolyte membranes for energy storage devices.

Keywords: photo-polymerization; methacrylate; polymer electrolyte; cellulose hand-sheets; nanoscale microfibrillated cellulose; electrochemical characterization; lithium iron phosphate; lithium polymer battery

Retraction

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  This paper has been retracted on 17 October 2012. A Retraction note is published in Membranes, 2012, 2, 705; http://www.mdpi.com/2077-0375/2/4/705 (PDF, 414 KB)

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