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Improved performance of polyvinylidenefluoride-hexafluorpropylene based nanocomposite polymer membranes containing lithium bis(oxalato)borate by phase inversion for lithium batteries

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Improved performance of polyvinylidenefluoride-hexafluorpropylene based nanocomposite polymer membranes containing lithium bis(oxalato)borate by phase inversion for lithium batteries

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Title: Improved performance of polyvinylidenefluoride-hexafluorpropylene based nanocomposite polymer membranes containing lithium bis(oxalato)borate by phase inversion for lithium batteries
Author: Aravindan, Vanchiappan; Vickraman, Palanisamy; Srinivasan, Madhavi; Sivashanmugam, A.; Thirunakaran, R.; Gopukumar, S.
Copyright year: 2011
Abstract: Nanocomposite polymer electrolyte membranes were prepared by phase inversion technique in polyvinylidenefluoride-hexafluoropropylene (PVdFeHFP) matrix. These membranes were gelled with 0.5 M LiBOB in EC:DEC (1:1 v/v). These gel polymer membranes (GPMs) were incorporated with nanoparticles of AlO(OH)n and prepared composite polymer membranes (CPMs) also. The a.c. impedance analysis shows that AlO(OH)n filled membrane exhibits conductivity of 1.82 x 10^-3 S cm^-1 at ambient temperature. The Li/CPM/LiFePO4 cell delivered a specific discharge capacity of 158 and 147 mAh g^-1 at first and at 20th cycle respectively discharged at C/20 rate. The cell experiences a capacity fade of 0.1 mAh g^-1 cycle^-1 over the investigated 20 cycles. The studies vindicate that AlO(OH)n filled PVdFeHFP polymer membranes could be the potential material to use as separator cum electrolyte in lithium batteries in conjunction with LiFePO4 as a counterpart.
Subject: DRNTU::Engineering::Materials::Composite materials.
Type: Journal Article
Series/ Journal Title: Solid state sciences
School: School of Materials Science and Engineering
Rights: © 2011 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Solid State Sciences, Elsevier.  It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document.  The published version is available at: http://dx.doi.org/10.1016/j.solidstatesciences.2011.01.022.
Version: Accepted version

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