Lithium ion mobility in poly(vinyl alcohol) based polymer electrolytes as determined by 7Li NMR spectroscopy Every, H. A., Zhou, F., Forsyth, M. and MacFarlane, D. R. 1998, Lithium ion mobility in poly(vinyl alcohol) based polymer electrolytes as determined by 7Li NMR spectroscopy, Electrochimica acta, vol. 43, no. 10-11, pp. 1465-1469, doi: 10.1016/S0013-4686(97)10085-8. Attached Files Name Description MIMEType Size Downloads Title Lithium ion mobility in poly(vinyl alcohol) based polymer electrolytes as determined by 7Li NMR spectroscopy Formatted title Lithium ion mobility in poly(vinyl alcohol) based polymer electrolytes as determined by 7Li NMR spectroscopy Author(s) Every, H. A. Zhou, F. Forsyth, M. orcid.org/0000-0002-4273-8105 MacFarlane, D. R. Journal name Electrochimica acta Volume number 43 Issue number 10-11 Start page 1465 End page 1469 Publisher Elsevier Science Pub. Co. Place of publication New York, N.Y. Publication date 1998-04 ISSN 0013-4686 1873-3859 Keyword(s) poly(vinyl alcohol) conductivity 7Li NMR electrolytes Summary Solvent-free polymer electrolytes based on poly(vinyl alcohol) (PVA) and LiCF3SO3 have shown relatively high conductivities (10−8-10−4 S cm−1), with Arrhenius temperature dependence below the differential scanning calorimeter (DSC) glass transition temperature (343 K). This behaviour is in stark contrast to traditional polymer electrolytes in which the conductivity reflects VTF behaviour. 7Li nuclear magnetic resonance (NMR) spectroscopy has been employed to develop a better understanding of the conduction mechanism. Variable temperature NMR has indicated that, unlike traditional polymer electrolytes where the linewidth reaches a rigid lattice limit near Tg, the lithium linewidths show an exponential decrease with increasing temperature between 260 and 360 K. The rigid lattice limit appears to be below 260 K. Consequently, the mechanism for ion conduction appears to be decoupled from the main segmental motions of the PVA. Possible mechanisms include ion hopping, proton conduction or ionic motion assisted by secondary polymer relaxations. Language eng DOI 10.1016/S0013-4686(97)10085-8 Field of Research 039999 Chemical Sciences not elsewhere classified Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©1998, Elsevier Science Ltd. Persistent URL http://hdl.handle.net/10536/DRO/DU:30030113 Document type: Journal Article Collections: Institute for Technology Research and Innovation GTP Research Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Fri, 10 Sep 2010, 15:08:41 EST Wed, 22 Sep 2010, 11:17:44 EST Wed, 22 Sep 2010, 11:18:56 EST Filtered Full Citation counts:   Cited 116 times in TR Web of Science Cited 118 times in Scopus Search Google Scholar Access Statistics: 1194 Abstract Views, 0 File Downloads  -  Detailed Statistics Created: Fri, 10 Sep 2010, 15:08:41 EST