Hostname: page-component-7b7567c8c-fvjsw Total loading time: 0 Render date: 2026-11-15T00:31:56.063Z Has data issue: false hasContentIssue false
  • English
  • Français

Pyrrole Copolymers with Enhanced Ion Diffusion Rates for Lithium Batteries

Published online by Cambridge University Press:  10 February 2011

Paul Calvert,
Zack Gardlund,
Trey Huntoon,
H. K. Hall and
Anne Padias
Paul Calvert
Affiliation:
Department of Materials Science and Engineering, University of Arizona, Tucson, AZ, 85712.
Zack Gardlund
Affiliation:
Department of Materials Science and Engineering, University of Arizona, Tucson, AZ, 85712.
Trey Huntoon
Affiliation:
Department of Materials Science and Engineering, University of Arizona, Tucson, AZ, 85712.
H. K. Hall
Affiliation:
Department of Chemistry, University of Arizona, Tucson, AZ, 85712.
Anne Padias
Affiliation:
Department of Chemistry, University of Arizona, Tucson, AZ, 85712.
Get access

Abstract

Copolymers of pyrrole with a polyether-substituted pyrrole were tested as cathodes for lithium batteries. The charge and discharge characteristics showed that anion transport was much faster in the copolymer than in polypyrrole. As a result these electrodes store and release much more charge at higher current densities but are similar to polypyrrole at low currents. Pulse and relaxation measurements of the ion diffusion showed that this difference was due to a ten-fold increase in the anion diffusion coefficient.

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.)

Article purchase

Temporarily unavailable

References

REFERENCES

[1] Moon, D.-K., Padias, A.B., Hall, H.K. et al.,. Macromolecules 28, 6205–6210 (1995)10.1021/ma00122a030Google Scholar
[2] Lauter, U., Meyer, W., and Wegner, G.,. Macromolecules 30, 2092–2101 (1997)10.1021/ma961098yGoogle Scholar
[3] Kaufman, J.H., Kanazawa, K.K., and Street, G.B.,. Phys. Rev. Lett. 53, 2461 (1984)10.1103/PhysRevLett.53.2461Google Scholar
[4] Diaz, A.F. and Bargon, J., “Electrochemical synthesis of conducting polymers,” in Handbook of conducting polymers, edited by Skotheim, T.A. (Dekker, New York, 1986), Vol. 1, pp. 81–115.Google Scholar
[5] Huntoon, T.W.S., “The polymerization and electrochemical characterization of polypyrrole and ethyleneoxide-pyrrole graft copolymers,” PhD., University of Arizona, 1997.Google Scholar
[6] Kemp, J., Instrumental Methods in Electrochemistry (Halstead Press, New York, 1985).Google Scholar
[7] Rosa, C. and Peres, D.,. J. Power Sources 40, 299 (1992)Google Scholar
[8] Naoi, K. and Sakai, S.,. J. Power Sources 20, 237 (1987)10.1016/0378-7753(87)80117-9Google Scholar
[9] Sperling, L.H., Introduction to physical polymer science. 2nd ed. (Wiley, New York, 1992).Google Scholar