Science in China Series B: Chemistry

, Volume 48, Issue 6, pp 574–579 | Cite as

PEO-LiClO4-ZSM5 composite polymer electrolyte (IV): Polarized optical microscopy study

Article
  • 67 Downloads

Abstract

Polarized optical microscopy (POM) results show that ZSM5 has great influence on both the nucleation stage and the growth stage of PEO spherulites. Part of ZSM5 particles can act as the nucleus of PEO spherulites and thus increase the amount of PEO spherulites. On the other hand, ZSM5 can restrain the recrystallization tendency of PEO chains through Lewis acid-base interaction and hence decrease the growth speed of PEO spherulites. The increasing amount of PEO spherulites, decreasing size of PEO spherulites, and the incomplete crystallization are all beneficial for creating more continuous amorphous phases of PEO, which is very important for the transporting of Li+ ions. An adequate amount of ZSM5 can enhance the room temperature ionic conductivity of PEO-LiClO4 based polymer electrolyte for more than two magnitudes.

Keywords

composite polymer electrolyte poly (ethylene oxide) ZSM-5 polarized optical microscopy spherulites 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Tarascon, J. M., Armand, M., Issues and challenges facing rechargeable lithium batteries, Nature, 2001, 414(6861): 359–367.CrossRefGoogle Scholar
  2. 2.
    Scrosati, B., Croce, F., Panero, S., Progress in lithium polymer battery R&D, J. Power Sources, 2001, 100(1-2): 93–100.CrossRefGoogle Scholar
  3. 3.
    Gadjourova, Z., Andreev,, Y. G., Tunstall, D. P. et al., Ionic conductivity in crystalline polymer electrolytes, Nature, 2001, 412(6846): 520–523CrossRefGoogle Scholar
  4. 4.
    Stoeva, Z., Litas, I. M., Staunton, E. et al., Ionic conductivity in the crystalline polymer electrolytes PEO6:LiXF6, X = P, As, Sb, J. Am. Chem. Soc., 2003, 125(15): 4619–4626.CrossRefGoogle Scholar
  5. 5.
    Christie, A. M., Lilley, S. J., Staunton, E. et al., Increasing the conductivity of crystalline polymer electrolytes, Nature, 2005, 433(7021): 50–53.CrossRefGoogle Scholar
  6. 6.
    Croce, F., Appetecchi, G. B., Persi, L. et al., Nanocomposite polymer electrolytes for lithium batteries, Nature, 1998, 394(6692): 456–458.CrossRefGoogle Scholar
  7. 7.
    Xi, J. Y., Tang, X. Z., Nanocomposite polymer electrolyte based on PEO and solid super acid for lithium polymer battery, Chem. Phys. Lett., 2004, 393(1-3): 271–276.CrossRefGoogle Scholar
  8. 8.
    Meyer, W. H., Polymer electrolytes for lithium-ion batteries, Adv. Mater., 1998, 10(6): 439–448.CrossRefGoogle Scholar
  9. 9.
    Zhou, J., Fedkiw, P. S., Ionic conductivity of composite electrolyte based on oligo(ethylene oxide) and fumed oxides, Solid State Ionics, 2004, 166(3-4): 275–293.CrossRefGoogle Scholar
  10. 10.
    Fenton, D. E., Parker, J. M., Wright, P, V., Complexes of alkali metal ions with poly(ethylene oxide), Polymer, 1973, 14(11): 589.CrossRefGoogle Scholar
  11. 11.
    Xi, J. Y., Ma, X. M., Cui, M. Z. et al., Electrochemistry study on PEO-LiClO4-ZSM5 composite polymer electrolyte, Chinese Sci. Bull., 2004, 49(8): 785–789.Google Scholar
  12. 12.
    Xi, J. Y., Li, J., Tang, X. Z., PEO-LiClO4-ZSM5 composite polymer electrolyte (II): Effect of ZSM-5 on ionic conductivity, Acta Chim. Sinica, 2004, 62(18): 1755–1759.Google Scholar
  13. 13.
    Xi, J. Y., Ma, X. M., Cui, M. Z. et al., PEO-LiClO4-ZSM5 composite polymer electrolyte-Effect of ZSM-5 on the selective transference of lithium ion, Chem. J. Chinese Universities, 2005, 26(2): 330–333.Google Scholar
  14. 14.
    Yin, J. H., Mo, Z. S., Modern Polymer Physics, Vol. 1, Beijing: Science Press, 2001, 57–126.Google Scholar
  15. 15.
    Yin, J. H., Mo, Z. S., Modern Polymer Physics, Vol. 2, Beijing: Science Press, 2001, 934–978.Google Scholar

Copyright information

© Science in China Press 2004

Authors and Affiliations

  • Jingyu Xi
    • 1
  • Xinping Qiu
    • 1
  • Wentao Zhu
    • 1
  • Liquan Chen
    • 1
  1. 1.Department of ChemistryTsinghua UniversityBeijingChina

Personalised recommendations