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

被引:111
作者
BRUCE, PG
HARDGRAVE, MT
VINCENT, CA
机构
[1] Centre for Electrochemical and Materials Sciences, CEMS, Department of Chemistry, St. Andrews
关键词
D O I
10.1016/0167-2738(92)90295-Z
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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.
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页码:1087 / 1094
页数:8
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