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Updated: May 9, 2026
05:33
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
Viologens as charge carriers in a polymer-based battery anode
Sujat Sen1, James Saraidaridis, Sung Yeol Kim
1Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA.
ACS Applied Materials & Interfaces
|August 10, 2013
Summary
Viologen-doped polypyrrole films show promising electrochemical properties for energy storage. A polymer battery utilizing viologen and ABTS demonstrated a 1.0 V cell voltage and good charge-discharge behavior.
Area of Science:
- Electrochemistry
- Materials Science
- Polymer Science
Background:
- Viologens and polypyrrole are redox-active materials with potential in energy storage.
- Incorporating dopants into polymer films can enhance their electrochemical performance.
Purpose of the Study:
- To investigate the electrochemical properties of polypyrrole films doped with viologens.
- To evaluate the performance of a polymer-based battery constructed using viologen- and ABTS-doped polypyrrole.
Main Methods:
- Electrodeposition of polypyrrole films doped with viologens (as anions or pendant groups).
- Electrochemical characterization including cyclic voltammetry and charge-discharge tests.
- Fabrication and testing of a polymer-based battery cell.
Main Results:
- Polypyrrole films doped with viologens exhibited redox activity at -0.5 V vs Ag/AgCl.
- The film with pendant viologens showed the best charge-discharge behavior, reaching 55 mAh/g capacity.
- A polymer battery (viologen-doped anode, ABTS-doped cathode) achieved a 1.0 V emf, 16 mAh/g capacity, and 15 Wh/kg energy density.
Conclusions:
- Viologen doping effectively enhances the electrochemical performance of polypyrrole films.
- The developed polymer-based battery demonstrates potential for electrochemical energy storage applications.
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