Richardson, PM, Voice, AM and Ward, IM (2014) Two distinct lithium diffusive species for polymer gel electrolytes containing LiBF₄, propylene carbonate (PC) and PVDF. International Journal of Hydrogen Energy, 39 (6). pp. 2904-2908. ISSN 0360-3199
Abstract
Polymer gel electrolytes have been prepared using lithium tetrafluoroborate (LiBF₄), propylene carbonate (PC) and polyvinylidene fluoride (PVDF) at 20% and 30% concentration by mass. Self diffusion coefficients have been measured using pulse field gradient nuclear magnetic resonance (PFG-NMR) for the cation and anion using ⁷Li and ¹⁹F resonant frequencies respectively. It was found that lithium ion diffusion was slow compared to the much larger fluorine anion likely resulting from a large solvation shell of the lithium. Lithium ion diffusion measurements exhibited two distinct diffusive species, whereas the fluorine ions exhibited only a single diffusive species.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. This is an author produced version of a paper published in International Journal of Hydrogen Energy. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | NMR; Polymer gel electrolyte; Lithium ion diffusion |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Soft Matter Physics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 29 Jun 2016 10:53 |
Last Modified: | 31 Jan 2018 18:36 |
Published Version: | http://dx.doi.org/10.1016/j.ijhydene.2013.04.102 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.ijhydene.2013.04.102 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:100051 |