Functionalised polyterthiophenes as anode materials in polymer/polymer batteries

Authors

Caiyun Wang, University of WollongongFollow
George Tsekouras, University of Wollongong
Pawel W. Wagner, University of WollongongFollow
Sanjeev Gambhir, University of WollongongFollow
C. O. Too, University of WollongongFollow
David L. Officer, University of WollongongFollow
Gordon G. Wallace, University of WollongongFollow

RIS ID

33610

Publication Details

Wang, C., Tsekouras, G., Wagner, P. W., Gambhir, S., Too, C. O., Officer, D. L. & Wallace, G. G. (2010). Functionalised polyterthiophenes as anode materials in polymer/polymer batteries. Synthetic Metals, 160 (1-2), 76-82.

Abstract

A functionalised polyterthiophene, poly(3′-styryl-4,4″-didecyloxyterthiophene) (poly(OC₁₀DASTT)), was investigated as an anode coupled with a polypyrrole cathode in a battery with a lithium hexafluorophosphate (LiPF₆) in 1:1 ethylene carbonate (EC):dimethylcarbonate (DMC) electrolyte. The polymer was electrodeposited on stainless steel mesh and Ni/Cu-coated nonwoven polyester fabric. A discharge capacity of 45.2 mAh/g was obtained for the battery constructed using poly(OC₁₀DASTT) on a Ni/Cu-coated fabric as the anode. An alternative anode material, poly(4,4″-didecyloxyterthiophene) (poly(OC₁₀STT)) was electropolymerised on Ni/Cu-coated fabric, and exhibited a maximum discharge capacity of 94.7 mAh/g. The capacity decreased for both polymers with repeated charge/discharge cycling. This deterioration is attributed to mechanical degradation of the polymer as evidenced by scanning electron microscopy (SEM).

Grant Number

ARC/FF0669110

Additional Grant Number

http://purl.org/au-research/grants/ARC/FF0669110