THE DETERMINATION OF TRANSFERENCE NUMBERS IN SOLID POLYMER ELECTROLYTES USING THE HITTORF METHOD

P G BRUCE, M T HARDGRAVE, C A VINCENT

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Abstract

Actual transference numbers of M+ and X- ion-constituents in Polymer electrolytes have been determined for an amorphous Poly(ethylene oxide)-based Polymer electrolyte containing lithium perchlorate at 120-degrees-C by means of the Hittorf technique. The indicated value of cation transference number for an 8:1 electrolyte (0.06 +/- 0.05) is significantly lower than those found from other experimental techniques, such as NMR and steady-state polarisation, demonstrating the unsuitability of those methods for estimating this parameter. The Hittorf procedure described should be applicable to other polymer electrolytes.

Original languageEnglish
Pages (from-to)1087-1094
Number of pages8
JournalSolid State Ionics
Volume53
Publication statusPublished - 1992

Keywords

  • STEADY-STATE CURRENT
  • TRANSPORT NUMBERS
  • METAL-SALTS
  • CONDUCTIVITY
  • NETWORKS

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