Applied Physics A

, Volume 49, Issue 3, pp 249–257 | Cite as

EXAFS and thermal studies on zinc polymeric electrolytes

  • M. Cole
  • M. H. Sheldon
  • M. D. Glasse
  • R. J. Latham
  • R. G. Linford
Solids and Materials


(PEO) n :ZnX2 (X = I, Br) complexes were formed at room temperature with values ofn ranging from 8 to 30. Differential scanning calorimetry (DSC) results indicate that none of them contained any crystalline phases that can be associated with the formation of a complex (i.e. it can be assumed that all the salt is in the amorphous phase). EXAFS studies carried out on these samples suggest that the zinc cation is co-ordinated to two of the halide ions and, in addition, to 4 oxygen atoms whereX = I and 6 oxygen atoms whereX = Br. The DSC results confirm that the zinc cation is in an environment independent of overall stoichiometry, as the glass transition temperatures of the samples were found to be similar throughout. By comparing these with those of annealed samples (made by heating the above samples to 150°C and cooling to −80°C at 320°C min−1) it was found that the stoichiometry of the amorphous phase was roughly 6∶1 forX=I and 8∶1 forX = Br.


61.40 61.10 66.30 64.60 


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Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • M. Cole
    • 1
  • M. H. Sheldon
    • 1
  • M. D. Glasse
    • 1
  • R. J. Latham
    • 1
  • R. G. Linford
    • 1
  1. 1.Leicester PolytechnicLeicesterUK

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