Viologens as Charge Carriers in a Polymer-Based Battery Anode

Viologens, either as anions in solution or as pendant substituents to pyrrole, were incorporated as dopants to electrodeposited films of polypyrrole. The resulting polymer films exhibited redox activity at −0.5 V vs Ag/AgCl. The film consisting of polypyrrole with pendant viologens exhibited the bes...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2013-08, Vol.5 (16), p.7825-7830
Main Authors: Sen, Sujat, Saraidaridis, James, Kim, Sung Yeol, Palmore, G. Tayhas R
Format: Article
Language:English
Subjects:
Electric Conductivity
Electric Power Supplies
Electrodes
Polymers - chemistry
Pyrroles - chemistry
Sulfonic Acids - chemistry
Viologens - chemistry
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Summary:Viologens, either as anions in solution or as pendant substituents to pyrrole, were incorporated as dopants to electrodeposited films of polypyrrole. The resulting polymer films exhibited redox activity at −0.5 V vs Ag/AgCl. The film consisting of polypyrrole with pendant viologens exhibited the best charge–discharge behavior with a maximum capacity of 55 mAh/g at a discharge current of 0.25 mA/cm2. An anode consisting of polypyrrole (pPy) doped with viologen (V) was coupled to a cathode consisting of pPy doped with 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) to yield a polymer-based battery with a cell electromotive force (emf) of 1.0 V, maximum capacity of 16 mAh/g, and energy density of 15 Wh/kg.
ISSN:1944-8244
1944-8252
DOI:10.1021/am401590q