Ion conduction in macroporous polyethylene film doped with electrolytes

J. M G Cowie; G. H. Spence

Ion conduction in macroporous polyethylene film doped with electrolytes

J. M G Cowie, G. H. Spence

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

48 Citations (Scopus)

Abstract

Macroporous, low density polyethylene films have been used as support systems for polyethylene glycol (PEG) and propylene carbonate (PC)-lithium triflate mixtures. It has been shown that the optimum loading of (electrolyte + salt)/PE of 5.75/1 (w/w) gave conductivities in the range 3 × 10^-4 to 3 × 10^-5 S cm^-1 between 20°C and 80°C and that these values are better than comparable solvent free polymer electrolytes at ambient temperatures. Plots of log conductivity against reciprocal temperature for various [Li⁺]/[O] ratios obeyed the Arrhenius equation and the temperature dependence of conductivity was lower in the PC system when compared with the PEG-containing films. The systems are simple to prepare, are versatile and strong, and are leak-free at ambient temperatures. These features make them possible competitors for solvent-free polymer electrolytes. © 1998 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	139-144
Number of pages	6
Journal	Solid State Ionics
Volume	109
Issue number	1-2
Publication status	Published - 1 Jun 1998

Keywords

Conductivity
Electrolytes
Polyethylene films

Cite this

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AU - Spence, G. H.

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AB - Macroporous, low density polyethylene films have been used as support systems for polyethylene glycol (PEG) and propylene carbonate (PC)-lithium triflate mixtures. It has been shown that the optimum loading of (electrolyte + salt)/PE of 5.75/1 (w/w) gave conductivities in the range 3 × 10-4 to 3 × 10-5 S cm-1 between 20°C and 80°C and that these values are better than comparable solvent free polymer electrolytes at ambient temperatures. Plots of log conductivity against reciprocal temperature for various [Li+]/[O] ratios obeyed the Arrhenius equation and the temperature dependence of conductivity was lower in the PC system when compared with the PEG-containing films. The systems are simple to prepare, are versatile and strong, and are leak-free at ambient temperatures. These features make them possible competitors for solvent-free polymer electrolytes. © 1998 Elsevier Science B.V. All rights reserved.

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KW - Electrolytes

KW - Polyethylene films

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JO - Solid State Ionics

JF - Solid State Ionics

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ER -

Ion conduction in macroporous polyethylene film doped with electrolytes

Abstract

Keywords

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