Hostname: page-component-7479d7b7d-wxhwt Total loading time: 0 Render date: 2024-07-13T15:43:46.516Z Has data issue: false hasContentIssue false
  • English
  • Français

Slow recrystallization in the polymer electrolyte system poly(ethylene oxide)n–LiN(CF3SO2)2

Published online by Cambridge University Press:  31 January 2011

Ludvig Edman ,
Anders Ferry  and
Marca M. Doeff
Ludvig Edman
Affiliation:
Lawrence Berkeley National Laboratory, Materials Science Division, University of California, Berkeley, California 94720
Anders Ferry
Affiliation:
Department of Materials Engineering, Monash University, Clayton, 3168 VIC, Australia
Marca M. Doeff
Affiliation:
Lawrence Berkeley National Laboratory, Materials Science Division, University of California, Berkeley, California 94720
Get access

Abstract

Thermal and ion-transport properties of the salt-in-polymer system poly(ethylene oxide)n–LiN(CF3SO2)2 [P(EO)nLiTFSI] were investigated for compositions ranging from n = 5 to n = 50. Particular attention was paid to the region n = 8 to 10 where a crystallinity gap previously had been reported. We concluded that the absence of distinct melting transitions for salt-rich compositions (n = 5 to 12) was attributable to the extremely slow kinetics of recrystallization of this system following a heat treatment. The results further indicated that it was primarily the nucleation process that was inhibited by the [(bis)trifluoromethanesulfonate imide] (TFSI) anion. As a corollary, the ionic conductivity was strongly dependent on the thermal history of samples, and an enhancement of up to 300% was observed in the ambient temperature ionic conductivity for pre-heated salt-rich samples.

Type
Articles
Information
Journal of Materials Research , Volume 15 , Issue 9 , September 2000 , pp. 1950 - 1954
Copyright
Copyright © Materials Research Society 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.MacGlashan, G.S., Andreev, Y.G., and Bruce, P.G., Nature 398, 792 (1999).CrossRefGoogle Scholar
2.Lightfoot, P., Mehta, M.A., and Bruce, P.G., Science 262, 883 (1993).CrossRefGoogle Scholar
3.Solid State Electrochemistry, edited by Bruce, P.G. (Cambridge University Press, Cambridge, 1995).Google Scholar
4.Ferry, A., in Recent Research Developments in Macromolecules Research, edited by Pandalai, S.G. (Research Signpost 4, Trivandrum, India, 1999). p. 79, and references therein.Google Scholar
5.Ratner, M.A., in Polymer Electrolyte Reviews, edited by MacCallum, J.R. and Vincent, C.A. (Elsevier, London, 1987), Vol. 1, p. 173.Google Scholar
6.Mao, G., Perea, R.F., Howells, W.S., Price, D.L., and Saboungi, M-L., Nature 405, 163 (2000).CrossRefGoogle Scholar
7.Angell, C.A., Ann. Rev. Phys. Chem. 43, 693 (1992), and references therein.CrossRefGoogle Scholar
8.Croce, F., Appetecchi, G.B., Persi, L., and Scrosati, B., Nature 394, 456 (1998).CrossRefGoogle Scholar
9.Wieczorek, W., Zalewska, A., Raducha, D., Florjanczyk, Z., and Stevens, J.R., J. Phys. Chem. B 102, 352 (1998).CrossRefGoogle Scholar
10.Best, A.S., Ferry, A., MacFarlane, D.R., and Forsyth, M., Solid State Ionics 126, 269 (1999).CrossRefGoogle Scholar
11.Weston, J.E. and Steele, B.C.H, Solid State Ionics 7, 75 (1982).CrossRefGoogle Scholar
12.Edman, L., Ferry, A., and Jacobsson, P., Macromolecules 32, 4130 (1999).CrossRefGoogle Scholar
13.Armand, M., Gorecki, W., and Andreani, R., in Second International Symposium on Polymer Electrolytes, edited by Scrosati, B. (Elsevier, New York, 1990), p. 91.Google Scholar
14.Armand, M., Sanchez, J.Y., Gauthier, M., and Choquette, Y., in The Electrochemistry of Materials, edited by Lipkowski, J. and Ross, P.N. (VCH, New York, 1994), p. 65.Google Scholar
15.Vallée, A., Besner, S., and Prud'homme, J., Electrochimica Acta 37, 1579 (1992).Google Scholar
16.Robitaille, C.D. and Fateux, D., J. Electrochem. Soc. 133, 315 (1986).CrossRefGoogle Scholar
17.Labrèche, C., Lévesque, I., and Prud'homme, J., Macromolecules 29, 7795 (1996).CrossRefGoogle Scholar
18.Lascaud, S., Perrier, M., Vallée, A., Besner, S., Prud'homme, J., and Armand, M., Macromolecules 27, 7469 (1994).CrossRefGoogle Scholar
19.Edman, L., Doeff, M.M., Ferry, A., Kerr, J., and De Jonghe, L.C., presented at Solid State Ionics-12 (Thessaloniki, Greece, 1999).Google Scholar
20.Doeff, M.M., Edman, L., Sloop, S.E., Kerr, J., and De Jonghe, L.C., J. Power Sources 89, 227 (2000).CrossRefGoogle Scholar
21.Edman, L., Doeff, M.M., Ferry, A., Kerr, J., and De Jonghe, L.C., J. Phys. Chem. B 104, 3476 (2000).CrossRefGoogle Scholar
22.Edman, L., J. Phys. Chem. B 104, 7258 (2000).Google Scholar