International Journal of Membrane Science and Technology  (Volume 2 Issue 1)
 Siloxane Diacrylate-based All-Solid Polymer Electrolytes for Lithium Batteries International Journal of Membrane Science and Technology
Pages 23-27


 
Matteo Destro, Claudio Gerbaldi, Federico Bella and Jijeesh R. Nair

DOI: http://dx.doi.org/10.15379/2410-1869.2015.02.01.4


Published: 15 May 2015
Abstract
 Fully solid polymer electrolyte (SPE) membranes were prepared by UV induced free radical polymerisation (UV-curing) of acrylated siloxane polyalkyleneoxide copolymers in the presence of different lithium salts. The main chain contains locally mobile segments of ethoxy groups as part of the copolymer, and these moieties can provide coordination sites for the mobility of Li+ ions. The materials are produced through a solvent free procedure, and used as ion-conducting media as well as a separator in high temperature lithium-based batteries. The preparation process is easy, simple and versatile. The final product obtained demonstrates good mechanical integrity due to the highly cross-linked nature of the polymer network, and wide thermal stability. The membranes are also soft, easy to manage and transparent. They also exhibit acceptable ionic conductivity and wide electrochemical stability window.
Keywords
 Siloxane diacrylate, Polymer electrolyte, Ionic conductivity, Photopolymerisation, Lithium battery.
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