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Li-7 NMR measurements of polymer gel electrolytes

Adebahr, Josefina; Forsyth, M; MacFarlane, DR; Gavelin, Patrik LU and Jacobsson, P (2002) In Solid State Ionics 147(3-4). p.303-307
Abstract
Ion conducting polymer gels prepared from (ethylene oxide)(n) grafted methacrylates, ethylene carbonate (EC), gamma butyrolactone (gBL), and lithium hexafluorophosphate are studied by means of nuclear magnetic resonance spectroscopy, This study shows that there are at least two possible lithium sites with different mobility. The lithium-ions with lower mobility dominate at room temperature, but this is changed as the temperature is increased. The NMR results also show that the Li-7 spin-spin relaxation time decreases with increasing length of the grafted ethylene oxide side chains, indicating a stronger interaction between the polymer and the Li-ions, and hence, a lower mobility of the Li-ions. (C) 2002 Elsevier Science B.V. All rights... (More)
Ion conducting polymer gels prepared from (ethylene oxide)(n) grafted methacrylates, ethylene carbonate (EC), gamma butyrolactone (gBL), and lithium hexafluorophosphate are studied by means of nuclear magnetic resonance spectroscopy, This study shows that there are at least two possible lithium sites with different mobility. The lithium-ions with lower mobility dominate at room temperature, but this is changed as the temperature is increased. The NMR results also show that the Li-7 spin-spin relaxation time decreases with increasing length of the grafted ethylene oxide side chains, indicating a stronger interaction between the polymer and the Li-ions, and hence, a lower mobility of the Li-ions. (C) 2002 Elsevier Science B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
polymer gel electrolyte, mobility, NMR spectroscopy, ionic interaction
in
Solid State Ionics
volume
147
issue
3-4
pages
303 - 307
publisher
Elsevier
external identifiers
  • wos:000175219600014
  • scopus:0036535485
ISSN
0167-2738
DOI
10.1016/S0167-2738(02)00014-0
language
English
LU publication?
yes
id
72a498d2-9b0a-4afc-8b0c-ca2a2b950850 (old id 338763)
date added to LUP
2007-08-03 16:36:12
date last changed
2017-01-01 04:26:18
@article{72a498d2-9b0a-4afc-8b0c-ca2a2b950850,
  abstract     = {Ion conducting polymer gels prepared from (ethylene oxide)(n) grafted methacrylates, ethylene carbonate (EC), gamma butyrolactone (gBL), and lithium hexafluorophosphate are studied by means of nuclear magnetic resonance spectroscopy, This study shows that there are at least two possible lithium sites with different mobility. The lithium-ions with lower mobility dominate at room temperature, but this is changed as the temperature is increased. The NMR results also show that the Li-7 spin-spin relaxation time decreases with increasing length of the grafted ethylene oxide side chains, indicating a stronger interaction between the polymer and the Li-ions, and hence, a lower mobility of the Li-ions. (C) 2002 Elsevier Science B.V. All rights reserved.},
  author       = {Adebahr, Josefina and Forsyth, M and MacFarlane, DR and Gavelin, Patrik and Jacobsson, P},
  issn         = {0167-2738},
  keyword      = {polymer gel electrolyte,mobility,NMR spectroscopy,ionic interaction},
  language     = {eng},
  number       = {3-4},
  pages        = {303--307},
  publisher    = {Elsevier},
  series       = {Solid State Ionics},
  title        = {Li-7 NMR measurements of polymer gel electrolytes},
  url          = {http://dx.doi.org/10.1016/S0167-2738(02)00014-0},
  volume       = {147},
  year         = {2002},
}